LRP2
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Also known as gp330DBS
Summary
LRP2 (LDL receptor related protein 2, HGNC:6694) is a protein-coding gene on chromosome 2q31.1, encoding Low-density lipoprotein receptor-related protein 2 (P98164). Multiligand endocytic receptor.
The protein encoded by this gene, low density lipoprotein-related protein 2 (LRP2) or megalin, is a multi-ligand endocytic receptor that is expressed in many different tissues but primarily in absorptive epithilial tissues such as the kidney. This glycoprotein has a large amino-terminal extracellular domain, a single transmembrane domain, and a short carboxy-terminal cytoplasmic tail. The extracellular ligand-binding-domains bind diverse macromolecules including albumin, apolipoproteins B and E, and lipoprotein lipase. The LRP2 protein is critical for the reuptake of numerous ligands, including lipoproteins, sterols, vitamin-binding proteins, and hormones. This protein also has a role in cell-signaling; extracellular ligands include parathyroid horomones and the morphogen sonic hedgehog while cytosolic ligands include MAP kinase scaffold proteins and JNK interacting proteins. Recycling of this membrane receptor is regulated by phosphorylation of its cytoplasmic domain. Mutations in this gene cause Donnai-Barrow syndrome (DBS) and facio-oculoacoustico-renal syndrome (FOAR).
Source: NCBI Gene 4036 — RefSeq curated summary.
At a glance
- Gene–disease (curated): Donnai-Barrow syndrome (Definitive, GenCC) — +3 more curated relationships
- GWAS associations: 39
- Clinical variants (ClinVar): 5,090 total — 101 pathogenic, 96 likely-pathogenic
- Phenotypes (HPO): 44
- Druggable target: yes
- Dosage sensitivity (ClinGen): haploinsufficiency autosomal recessive, triplosensitivity no evidence
- MANE Select transcript:
NM_004525
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:6694 |
| Approved symbol | LRP2 |
| Name | LDL receptor related protein 2 |
| Location | 2q31.1 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | gp330, DBS |
| Ensembl gene | ENSG00000081479 |
| Ensembl biotype | protein_coding |
| OMIM | 600073 |
| Entrez | 4036 |
Gene structure
Transcript identifiers
Ensembl transcripts: 7 — 2 protein_coding, 2 retained_intron, 2 nonsense_mediated_decay, 1 protein_coding_CDS_not_defined
ENST00000443831, ENST00000461418, ENST00000491228, ENST00000493501, ENST00000649046, ENST00000649153, ENST00000650252
RefSeq mRNA: 1 — MANE Select: NM_004525
NM_004525
CCDS: CCDS2232
Canonical transcript exons
ENST00000649046 — 79 exons
| Exon | Start | End |
|---|---|---|
| ENSE00000495477 | 169247378 | 169247515 |
| ENSE00000523587 | 169242956 | 169243072 |
| ENSE00000523592 | 169226422 | 169226588 |
| ENSE00000523602 | 169196911 | 169197030 |
| ENSE00000523623 | 169142674 | 169142793 |
| ENSE00000523628 | 169318762 | 169318884 |
| ENSE00000779036 | 169320777 | 169320884 |
| ENSE00000779048 | 169307281 | 169307397 |
| ENSE00000779078 | 169294600 | 169294710 |
| ENSE00000779081 | 169294148 | 169294261 |
| ENSE00000779086 | 169292253 | 169292369 |
| ENSE00000779087 | 169290845 | 169290997 |
| ENSE00000779088 | 169289026 | 169289145 |
| ENSE00000779089 | 169282873 | 169283001 |
| ENSE00000779090 | 169280350 | 169280519 |
| ENSE00000779091 | 169279372 | 169279595 |
| ENSE00000779093 | 169277745 | 169277951 |
| ENSE00000779094 | 169275036 | 169275238 |
| ENSE00000779096 | 169270904 | 169271107 |
| ENSE00000779100 | 169257124 | 169257249 |
| ENSE00000779104 | 169256106 | 169256236 |
| ENSE00000779109 | 169246705 | 169246986 |
| ENSE00000779110 | 169244693 | 169244932 |
| ENSE00000779111 | 169243403 | 169243522 |
| ENSE00000779116 | 169240988 | 169241365 |
| ENSE00000779117 | 169239527 | 169239775 |
| ENSE00000779118 | 169238091 | 169238302 |
| ENSE00000779119 | 169237103 | 169237287 |
| ENSE00000779120 | 169235840 | 169236068 |
| ENSE00000779121 | 169233411 | 169233588 |
| ENSE00000779122 | 169231714 | 169231842 |
| ENSE00000779146 | 169225310 | 169225453 |
| ENSE00000779148 | 169220454 | 169220563 |
| ENSE00000779150 | 169216253 | 169216430 |
| ENSE00000779152 | 169213657 | 169213870 |
| ENSE00000779154 | 169211968 | 169212207 |
| ENSE00000779156 | 169209453 | 169209641 |
| ENSE00000779158 | 169206330 | 169207250 |
| ENSE00000779160 | 169206023 | 169206188 |
| ENSE00000779162 | 169205479 | 169205637 |
| ENSE00000779164 | 169203982 | 169204271 |
| ENSE00000779167 | 169202756 | 169202959 |
| ENSE00000779170 | 169198786 | 169198911 |
| ENSE00000779173 | 169193761 | 169193892 |
| ENSE00000779175 | 169191832 | 169192033 |
| ENSE00000779176 | 169187970 | 169188265 |
| ENSE00000779177 | 169185503 | 169186019 |
| ENSE00000779181 | 169177803 | 169178026 |
| ENSE00000779182 | 169176411 | 169176588 |
| ENSE00000779184 | 169173919 | 169174164 |
| ENSE00000779185 | 169173096 | 169173224 |
| ENSE00000779186 | 169172015 | 169172134 |
| ENSE00000779187 | 169170551 | 169170667 |
| ENSE00000779188 | 169169702 | 169169818 |
| ENSE00000779200 | 169146739 | 169146959 |
| ENSE00000779201 | 169145747 | 169145923 |
| ENSE00000779244 | 169140455 | 169140545 |
| ENSE00000779245 | 169139543 | 169139610 |
| ENSE00000779249 | 169132574 | 169132681 |
| ENSE00000779250 | 169129013 | 169129084 |
| ENSE00001131243 | 169259025 | 169259217 |
| ENSE00001187237 | 169127109 | 169128830 |
| ENSE00001301493 | 169201628 | 169201870 |
| ENSE00001312980 | 169175193 | 169175389 |
| ENSE00001733691 | 169362321 | 169362534 |
| ENSE00002436751 | 169154460 | 169154603 |
| ENSE00002448352 | 169150898 | 169151026 |
| ENSE00002473051 | 169152799 | 169152964 |
| ENSE00002481570 | 169165932 | 169166054 |
| ENSE00002486593 | 169168539 | 169168676 |
| ENSE00002508898 | 169157371 | 169157502 |
| ENSE00002529445 | 169156274 | 169156405 |
| ENSE00002531114 | 169162472 | 169162600 |
| ENSE00003460770 | 169181448 | 169181618 |
| ENSE00003532352 | 169182167 | 169182319 |
| ENSE00003581739 | 169138577 | 169138706 |
| ENSE00003596112 | 169139251 | 169139371 |
| ENSE00003598232 | 169272927 | 169273067 |
| ENSE00003641699 | 169137392 | 169137493 |
Expression profiles
Bgee: expression breadth ubiquitous, 169 present calls, max score 94.71.
FANTOM5 (CAGE): breadth broad, TPM avg 3.3507 / max 289.5386, expressed in 271 samples.
FANTOM5 promoters (4 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 31730 | 2.7075 | 257 |
| 31729 | 0.4017 | 154 |
| 31731 | 0.1433 | 80 |
| 31732 | 0.0982 | 56 |
Top tissues by expression
271 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| adult organism | UBERON:0007023 | 94.71 | gold quality |
| adult mammalian kidney | UBERON:0000082 | 94.44 | gold quality |
| corpus callosum | UBERON:0002336 | 94.02 | gold quality |
| buccal mucosa cell | CL:0002336 | 93.19 | gold quality |
| nephron tubule | UBERON:0001231 | 93.19 | gold quality |
| inferior vagus X ganglion | UBERON:0005363 | 92.19 | gold quality |
| kidney | UBERON:0002113 | 92.08 | gold quality |
| thyroid gland | UBERON:0002046 | 91.72 | gold quality |
| kidney epithelium | UBERON:0004819 | 91.66 | gold quality |
| pigmented layer of retina | UBERON:0001782 | 91.59 | gold quality |
| germinal epithelium of ovary | UBERON:0001304 | 91.33 | gold quality |
| left lobe of thyroid gland | UBERON:0001120 | 91.29 | gold quality |
| right lobe of thyroid gland | UBERON:0001119 | 91.10 | gold quality |
| renal medulla | UBERON:0000362 | 90.55 | gold quality |
| C1 segment of cervical spinal cord | UBERON:0006469 | 89.85 | gold quality |
| spinal cord | UBERON:0002240 | 88.51 | gold quality |
| parietal pleura | UBERON:0002400 | 88.51 | gold quality |
| subthalamic nucleus | UBERON:0001906 | 88.06 | gold quality |
| mammary duct | UBERON:0001765 | 87.75 | gold quality |
| medial globus pallidus | UBERON:0002477 | 87.69 | gold quality |
| renal glomerulus | UBERON:0000074 | 87.12 | gold quality |
| metanephric glomerulus | UBERON:0004736 | 87.08 | gold quality |
| epithelium of mammary gland | UBERON:0003244 | 86.15 | gold quality |
| caput epididymis | UBERON:0004358 | 85.87 | gold quality |
| globus pallidus | UBERON:0001875 | 85.76 | gold quality |
| cortex of kidney | UBERON:0001225 | 85.61 | gold quality |
| placenta | UBERON:0001987 | 85.53 | gold quality |
| pons | UBERON:0000988 | 85.14 | gold quality |
| metanephros | UBERON:0000081 | 83.06 | gold quality |
| parotid gland | UBERON:0001831 | 82.63 | gold quality |
Single-cell (SCXA)
Detected in 9 experiment(s), a significant marker in 7.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-CURD-119 | yes | 3206.00 |
| E-GEOD-131882 | yes | 2960.32 |
| E-GEOD-93593 | yes | 599.65 |
| E-MTAB-10018 | yes | 267.32 |
| E-GEOD-75140 | yes | 252.58 |
| E-HCAD-10 | yes | 38.55 |
| E-ANND-3 | yes | 14.98 |
| E-CURD-135 | no | 1393.70 |
| E-MTAB-6911 | no | 169.13 |
Regulation
Is transcription factor: no
Upstream regulators (CollecTRI, top): PPARA, PPARG, SP1, TBP, YBX3
miRNA regulators (miRDB)
212 targeting LRP2, top 30 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific):
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-1277-5P | 100.00 | 73.95 | 5056 |
| HSA-MIR-3163 | 100.00 | 77.23 | 8605 |
| HSA-MIR-5692A | 100.00 | 74.40 | 6850 |
| HSA-MIR-4262 | 100.00 | 73.26 | 3931 |
| HSA-LET-7A-3P | 100.00 | 74.03 | 3932 |
| HSA-LET-7B-3P | 100.00 | 74.08 | 3913 |
| HSA-LET-7F-1-3P | 100.00 | 74.02 | 3928 |
| HSA-MIR-98-3P | 100.00 | 74.08 | 3907 |
| HSA-MIR-548C-3P | 99.99 | 74.01 | 7587 |
| HSA-MIR-548AW | 99.99 | 72.57 | 3559 |
| HSA-MIR-511-3P | 99.99 | 68.85 | 1467 |
| HSA-MIR-181A-5P | 99.99 | 72.96 | 2995 |
| HSA-MIR-181B-5P | 99.99 | 72.97 | 2996 |
| HSA-MIR-181C-5P | 99.99 | 72.95 | 2996 |
| HSA-MIR-181D-5P | 99.99 | 73.04 | 2997 |
| HSA-MIR-371B-5P | 99.99 | 75.34 | 4759 |
| HSA-MIR-4282 | 99.99 | 75.36 | 6408 |
| HSA-MIR-19A-3P | 99.98 | 75.33 | 2762 |
| HSA-MIR-19B-3P | 99.98 | 75.44 | 2754 |
| HSA-MIR-3617-3P | 99.98 | 67.86 | 918 |
| HSA-MIR-4482-3P | 99.98 | 72.50 | 3147 |
| HSA-MIR-5696 | 99.98 | 72.36 | 4487 |
| HSA-MIR-103A-3P | 99.98 | 69.14 | 1595 |
| HSA-MIR-107 | 99.98 | 69.14 | 1595 |
| HSA-MIR-520D-5P | 99.98 | 73.34 | 4883 |
| HSA-MIR-524-5P | 99.98 | 73.43 | 4882 |
| HSA-MIR-4775 | 99.98 | 75.00 | 6394 |
| HSA-MIR-373-5P | 99.98 | 75.36 | 4753 |
| HSA-MIR-616-5P | 99.98 | 75.58 | 4775 |
| HSA-MIR-507 | 99.97 | 70.11 | 1915 |
Functional genomics
ClinGen dosage: haploinsufficiency 30 (autosomal recessive), triplosensitivity 0 (no evidence). ClinGen Gene Dosage Map
Literature-anchored findings (GeneRIF, showing 40)
- Megalin and cubilin: multifunctional endocytic receptors. A review. (PMID:11994745)
- This study reveals that LRP2 is a major autoantigen in rheumatoid arthritis and probably drives the production of anti-LRP2 autoantibodies, which may play pathological roles by inhibiting the reabsorbing function of LRP2. (PMID:12723989)
- megalin has a role in thyroid homeostasis with possible implications in thyroid diseases (PMID:14657389)
- a binding affinity of disabled homolog 2 mitogen-responsive phosphoprotein interaction domain for megalin CT of K(D) = 2.6 x 10(-7) +/- 5.3 x 10(-8) (PMID:15134832)
- megalin endocytosed NGAL by a mechanism completely blocked by an antibody against megalin (PMID:15670845)
- Further studies on the intracellular molecular signalling associated with megalin-mediated metabolic pathways may lead to the development of novel strategies for the treatment of nephropathies related to diabetes and metabolic syndrome. (Review) (PMID:16174284)
- This review focuses on the involvement of megalin during embryonic development and its interactions with the developmental morphogen sonic hedgehog. (PMID:16828734)
- Results show that the PPPSP motif and GSK3 activity are critical to allow megalin phosphorylation and also negatively regulate the receptor’s recycling. (PMID:17555532)
- Study mapped Donnai-Barrow syndrome to chromosome 2q23.3-31.1 and identified LRP2 mutations in six families with Donnai-Barrow syndrome and one family with facio-oculo-acoustico-renal syndrome. (PMID:17632512)
- This review summarizes recent data on the biological function of megalin and focuses on its implication in embryonic nutrition and central nervous system malformations. (PMID:17979745)
- These results suggest that Dab2 is a ligand dependent bi-directional regulator of ERK1,2 activity. (PMID:18070591)
- confirm the association between LRP2 and levels of T-Cho and LDL-C in human plasma (PMID:18174661)
- light chain endocytosis is predominantly mediated by the megalin-cubilin tandem endocytic receptor and identify endocytosis as a key step in light chain cytotoxicity. (PMID:18448595)
- Polymorphisms within the megalin gene for associations with prostate cancer risk and outcomes. (PMID:18559602)
- Interaction of the A2 domain of F8 with LRP2 follows the general mode, requires dissociation of factor VIII from von Willebrand factor, and is activation sensitive. (PMID:18685438)
- results show different expression patterns of megalin and cubulin in calculous gallbladders and acalculous gallbladders suggesting an association with gallstone formation and implying a putative role of the two proteins in cholesterol endocytosis (PMID:18791690)
- No defect in the trafficking or function of megalin upon OCRL1 knockdown. (PMID:19940034)
- Data show that MT-I + II and megalin are significantly altered in CNS lymphoma relative to controls. (PMID:20038220)
- allele (A) of the rs3755166 polymorphism within LRP2 gene may contribute to Alzheimer’s disease risk in the Chinese Han Population (PMID:20971101)
- in anagen VI hair follicles megalin was found in all keratinocytes of the distal region (PMID:21104416)
- megalin and cubilin are involved in the metabolism of vitamin D by reabsorbing vitamin D binding protein; dysfunction of these receptors is likely to be associated with the development of vitamin D deficiency in patients with chronic kidney disease (PMID:21595846)
- Sex-specific VDR and Megalin gene variations can modify age-related cognitive decline among US adults. (PMID:22170372)
- A total of 330 Chinese female-offspring nuclear families with 1088 individuals and 400 Chinese male-offspring nuclear families with 1215 individuals were genotyped at six tag single nucleotide polymorphisms of the LRP2 gene. (PMID:22174918)
- Expression of megalin and cubilin is decreased during experimental endotoxemia, which may contribute to an increase in urine levels of albumin during acute renal failure. (PMID:22437417)
- This study confirmed that LRP2 rs2544390 C/T at intron 1 was associated with serum uric acid levels among Japanese males with SLC22A12 258WW, SLC2A9 rs11722228C allele, ABCG2 126QQ and 141Q allele. (PMID:22565184)
- analysis of rare disease variants in LRP2, a gene linked and associated with autism spectrum disorders (PMID:22578327)
- results suggested that GSTT1 wild genotype and C-allele of megalin gene rs2228171 SNPs might be risk factors for cisplatin-induced ototoxicity (PMID:23274376)
- Using NMR titration data in HADDOCK, we have generated a three-dimensional model describing the complex between megalin and gentamicin. (PMID:23275343)
- The hypothalamic clusterin-low-density lipoprotein receptor-related protein-2 axis is a novel anorexigenic signalling pathway. (PMID:23673647)
- Megalin and Dab2 were expressed in prostate and colon epithelial cells, which was markedly enhanced following treatment with retinoic acid (PMID:23909735)
- Data suggest that endodermal layer of yolk sac and syncytiotrophoblast/cytotrophoblast cells of placental villi express megalin mRNA/protein; expression of megalin protein (but not mRNA) is up-regulated as gestation/placentation progresses. (PMID:23978537)
- A new mutation in LRP2 causes a predominantly ocular phenotype suggestive of Stickler syndrome. (PMID:23992033)
- LOS treatment decreased microalbuminuria induced by Cd apparently through a cubilin receptor-dependent mechanism but independent of megalin. (PMID:24093454)
- This review explores current evidence linking megalin expression and function to the development, diagnosis, and progression of acute kidney injury –{REVIEW} (PMID:24197071)
- Transgenic/knock-out megalin-deficient mice develop anxiety behavior and impaired learning, as described in Alzheimer’s disease. (PMID:24254699)
- Association of the T-allele of a single nucleotide polymorphism in LRP2 with gout risk in the Maori and Pacific subjects was consistent with this allele increasing serum urate in Japanese individuals (PMID:24286387)
- Serum uric acid-related gene LRP2 is not involved in gout susceptibility. (PMID:24366390)
- LRP2 sequencing reveals multiple rare variants associated with urinary trefoil factor-3 (PMID:24876117)
- The megalin expression appears to vary inversely with gestational age with the greatest expression noted in the most premature samples. Age-dependent differences in placental megalin may therefore influence fetal exposure. (PMID:25304941)
- levels of urinary C-megalin are associated with histological abnormalities in adult IgAN patients (PMID:25502002)
Cross-species orthologs
4 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | lrp2a | ENSDARG00000102506 |
| mus_musculus | Lrp2 | ENSMUSG00000027070 |
| rattus_norvegicus | Lrp2 | ENSRNOG00000056184 |
| drosophila_melanogaster | arr | FBGN0000119 |
Paralogs (14): LRP6 (ENSG00000070018), NID2 (ENSG00000087303), NID1 (ENSG00000116962), LRP1 (ENSG00000123384), LDLR (ENSG00000130164), LRP3 (ENSG00000130881), LRP4 (ENSG00000134569), EGF (ENSG00000138798), LRP12 (ENSG00000147650), VLDLR (ENSG00000147852), LRP8 (ENSG00000157193), LRP5 (ENSG00000162337), LRP1B (ENSG00000168702), LRP10 (ENSG00000197324)
Protein
Protein identifiers
Low-density lipoprotein receptor-related protein 2 — P98164 (reviewed: P98164)
Alternative names: Glycoprotein 330, Megalin
All UniProt accessions (4): P98164, A0A3B3IRR0, A0A3B3IT64, E9PC35
UniProt curated annotations — full annotation on UniProt →
Function. Multiligand endocytic receptor. Acts together with CUBN to mediate endocytosis of high-density lipoproteins. Mediates receptor-mediated uptake of polybasic drugs such as aprotinin, aminoglycosides and polymyxin B. In the kidney, mediates the tubular uptake and clearance of leptin. Also mediates transport of leptin across the blood-brain barrier through endocytosis at the choroid plexus epithelium. Endocytosis of leptin in neuronal cells is required for hypothalamic leptin signaling and leptin-mediated regulation of feeding and body weight. Mediates endocytosis and subsequent lysosomal degradation of CST3 in kidney proximal tubule cells. Mediates renal uptake of 25-hydroxyvitamin D3 in complex with the vitamin D3 transporter GC/DBP. Mediates renal uptake of metallothionein-bound heavy metals. Together with CUBN, mediates renal reabsorption of myoglobin. Mediates renal uptake and subsequent lysosomal degradation of APOM. Plays a role in kidney selenium homeostasis by mediating renal endocytosis of selenoprotein SEPP1. Mediates renal uptake of the antiapoptotic protein BIRC5/survivin which may be important for functional integrity of the kidney. Mediates renal uptake of matrix metalloproteinase MMP2 in complex with metalloproteinase inhibitor TIMP1. Mediates endocytosis of Sonic hedgehog protein N-product (ShhN), the active product of SHH. Also mediates ShhN transcytosis. In the embryonic neuroepithelium, mediates endocytic uptake and degradation of BMP4, is required for correct SHH localization in the ventral neural tube and plays a role in patterning of the ventral telencephalon. Required at the onset of neurulation to sequester SHH on the apical surface of neuroepithelial cells of the rostral diencephalon ventral midline and to control PTCH1-dependent uptake and intracellular trafficking of SHH. During neurulation, required in neuroepithelial cells for uptake of folate bound to the folate receptor FOLR1 which is necessary for neural tube closure. In the adult brain, negatively regulates BMP signaling in the subependymal zone which enables neurogenesis to proceed. In astrocytes, mediates endocytosis of ALB which is required for the synthesis of the neurotrophic factor oleic acid. Involved in neurite branching. During optic nerve development, required for SHH-mediated migration and proliferation of oligodendrocyte precursor cells. Mediates endocytic uptake and clearance of SHH in the retinal margin which protects retinal progenitor cells from mitogenic stimuli and keeps them quiescent. Plays a role in reproductive organ development by mediating uptake in reproductive tissues of androgen and estrogen bound to the sex hormone binding protein SHBG. Mediates endocytosis of angiotensin-2. Also mediates endocytosis of angiotensis 1-7. Binds to the complex composed of beta-amyloid protein 40 and CLU/APOJ and mediates its endocytosis and lysosomal degradation. Required for embryonic heart development. Required for normal hearing, possibly through interaction with estrogen in the inner ear.
Subunit / interactions. Binds plasminogen, extracellular matrix components, plasminogen activator-plasminogen activator inhibitor type I complex, apolipoprotein E-enriched beta-VLDL, lipoprotein lipase, lactoferrin, CLU/clusterin and calcium. Forms a multimeric complex together with LRPAP1. Interacts (via PxLPxI/L motif) with ANKRA2 (via ankyrin repeats). Interacts with LRP2BP. Interacts (via NPXY motif) with DAB2; the interaction is not affected by tyrosine phosphorylation of the NPXY motif. Interacts with MB. Interacts with BMP4. Interacts with the Sonic hedgehog protein N-product which is the active product of SHH. Interacts with CST3 in a calcium-dependent manner. Interacts with the vitamin-D binding protein GC/DBP. Interacts with sex hormone-binding protein SHBG. Interacts with angiotensin-2. Also interacts with angiotensin 1-7. Interacts with APOM. Interacts with selenoprotein SEPP1. Interacts with LEP. Interacts with ALB. Interacts with the antiapoptotic protein BIRC5/survivin. Interacts with matrix metalloproteinase MMP2 in complex with metalloproteinase inhibitor TIMP1. In neurons, forms a trimeric complex with APP and APPB1/FE65. Interacts with LDLRAP1/ARH; mediates trafficking of LRP2 to the endocytic recycling compartment. Does not interact with beta-amyloid protein 40 alone but interacts with the complex composed of beta-amyloid protein 40 and CLU/APOJ. Interacts with MDK.
Subcellular location. Apical cell membrane. Endosome lumen. Membrane. Coated pit. Cell projection. Dendrite. Axon.
Tissue specificity. Expressed in first and third trimester cytotrophoblasts in the placenta (at protein level). Absorptive epithelia, including renal proximal tubules.
Post-translational modifications. A fraction undergoes proteolytic cleavage of the extracellular domain at the cell membrane to generate a cytoplasmic tail fragment. This is internalized into the early endosome from where it trafficks in an LDLRAP1/ARH-dependent manner to the endocytic recycling compartment (ERC). In the ERC, it is further cleaved by gamma-secretase to release a fragment which translocates to the nucleus and mediates transcriptional repression. N-glycosylation is required for ligand binding.
Disease relevance. Donnai-Barrow syndrome (DBS) [MIM:222448] An autosomal recessive syndrome characterized by complete or partial agenesis of the corpus callosum, congenital diaphragmatic hernia, facial dysmorphology, ocular anomalies, sensorineural hearing loss, developmental delay, and proteinuria. There is variability in the expression of some features, such as diaphragmatic hernia, corpus callosum anomalies and proteinuria. The disease is caused by variants affecting the gene represented in this entry.
Domain organisation. Two overlapping PxLPxI/L motifs mediate interaction with ankyrin repeats of ANKRA2. The cytoplasmic domain is required for sorting to the apical cell membrane.
Similarity. Belongs to the LDLR family.
RefSeq proteins (1): NP_004516* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR000033 | LDLR_classB_rpt | Repeat |
| IPR000152 | EGF-type_Asp/Asn_hydroxyl_site | PTM |
| IPR000742 | EGF | Domain |
| IPR001881 | EGF-like_Ca-bd_dom | Domain |
| IPR002172 | LDrepeatLR_classA_rpt | Repeat |
| IPR009030 | Growth_fac_rcpt_cys_sf | Homologous_superfamily |
| IPR011042 | 6-blade_b-propeller_TolB-like | Homologous_superfamily |
| IPR018097 | EGF_Ca-bd_CS | Conserved_site |
| IPR019825 | Lectin_legB_Mn/Ca_BS | Binding_site |
| IPR023415 | LDLR_class-A_CS | Conserved_site |
| IPR026823 | cEGF | Domain |
| IPR036055 | LDL_receptor-like_sf | Homologous_superfamily |
| IPR049883 | NOTCH1_EGF-like | Domain |
| IPR051221 | LDLR-related | Family |
| IPR056588 | EGF_LRP2 | Domain |
Pfam: PF00057, PF00058, PF07645, PF12662, PF14670, PF24468
UniProt features (318 total): disulfide bond 126, domain 42, glycosylation site 40, repeat 35, sequence variant 20, sequence conflict 16, binding site 11, short sequence motif 7, modified residue 6, strand 4, region of interest 3, topological domain 2, compositionally biased region 2, signal peptide 1, chain 1, transmembrane region 1, helix 1
Structure
Experimental structures (PDB)
4 structures.
| PDB | Method | Resolution (Å) |
|---|---|---|
| 9CWM | ELECTRON MICROSCOPY | 3.3 |
| 9QAW | ELECTRON MICROSCOPY | 3.34 |
| 9I3V | ELECTRON MICROSCOPY | 3.51 |
| 2M0P | SOLUTION NMR |
Predicted structure (AlphaFold)
No AlphaFold model available for P98164 — AlphaFold DB does not currently provide models for proteins above ~3000 aa.
Functional residue map
Curated UniProt residues grouped by drug-discovery relevance — catalytic, ligand-binding, modification, and mutation-validated positions. Source: UniProtKB sequence features.
Ligand- & substrate-binding residues (11): 1208; 1210; 1212; 1218; 1219; 1126; 1129; 1131; 1133; 1139; 1140
Post-translational modifications (6): 4463, 4466, 4569, 4616, 4632, 4653
Disulfide bonds (126): 28–40, 35–53, 47–62, 67–80, 74–93, 87–103, 108–120, 115–133, 127–142, 147–157, 152–170, 164–179, 183–195, 190–208, 202–217, 222–234, 229–247, 241–256, 266–279, 273–292 …
Glycosylation sites (40): 159, 178, 299, 300, 341, 388, 463, 866, 1064, 1144, 1186, 1327, 1340, 1383, 1464, 1496, 1550, 1675, 1810, 2055 …
Function
Pathways and Gene Ontology
Reactome pathways
16 pathways
| ID | Pathway |
|---|---|
| R-HSA-196791 | Vitamin D (calciferol) metabolism |
| R-HSA-8856825 | Cargo recognition for clathrin-mediated endocytosis |
| R-HSA-8856828 | Clathrin-mediated endocytosis |
| R-HSA-975634 | Retinoid metabolism and transport |
| R-HSA-9758890 | Transport of RCbl within the body |
| R-HSA-1430728 | Metabolism |
| R-HSA-196741 | Cobalamin (Cbl, vitamin B12) transport and metabolism |
| R-HSA-196849 | Metabolism of water-soluble vitamins and cofactors |
| R-HSA-196854 | Metabolism of vitamins and cofactors |
| R-HSA-199991 | Membrane Trafficking |
| R-HSA-2187338 | Visual phototransduction |
| R-HSA-556833 | Metabolism of lipids |
| R-HSA-5653656 | Vesicle-mediated transport |
| R-HSA-6806667 | Metabolism of fat-soluble vitamins |
| R-HSA-8957322 | Metabolism of steroids |
| R-HSA-9709957 | Sensory Perception |
MSigDB gene sets: 535 (showing top):
GSE45365_CD8A_DC_VS_CD11B_DC_IFNAR_KO_MCMV_INFECTION_UP, GSE18804_SPLEEN_MACROPHAGE_VS_TUMORAL_MACROPHAGE_DN, GSE45365_NK_CELL_VS_BCELL_DN, GOBP_CARDIAC_CHAMBER_DEVELOPMENT, GOBP_MORPHOGENESIS_OF_AN_EPITHELIUM, RNGTGGGC_UNKNOWN, GOBP_REGULATION_OF_CELLULAR_RESPONSE_TO_GROWTH_FACTOR_STIMULUS, GOBP_EMBRYO_DEVELOPMENT_ENDING_IN_BIRTH_OR_EGG_HATCHING, GOBP_EPITHELIUM_DEVELOPMENT, GOBP_MUSCLE_TISSUE_DEVELOPMENT, BENPORATH_ES_WITH_H3K27ME3, GOBP_CARDIAC_SEPTUM_DEVELOPMENT, GOBP_OUTFLOW_TRACT_SEPTUM_MORPHOGENESIS, PAX4_01, GOBP_CORONARY_VASCULATURE_DEVELOPMENT
GO Biological Process (44): retinoid metabolic process (GO:0001523), kidney development (GO:0001822), neural tube closure (GO:0001843), secondary heart field specification (GO:0003139), outflow tract septum morphogenesis (GO:0003148), ventricular compact myocardium morphogenesis (GO:0003223), ventricular septum development (GO:0003281), lipid metabolic process (GO:0006629), endocytosis (GO:0006897), receptor-mediated endocytosis (GO:0006898), sensory perception of sound (GO:0007605), cell population proliferation (GO:0008283), male gonad development (GO:0008584), gene expression (GO:0010467), protein transport (GO:0015031), cobalamin transport (GO:0015889), metal ion transport (GO:0030001), negative regulation of BMP signaling pathway (GO:0030514), forebrain development (GO:0030900), diol metabolic process (GO:0034311), aorta development (GO:0035904), vitamin D metabolic process (GO:0042359), negative regulation of apoptotic process (GO:0043066), phosphatidylinositol 3-kinase/protein kinase B signal transduction (GO:0043491), response to leptin (GO:0044321), transcytosis (GO:0045056), positive regulation of neurogenesis (GO:0050769), vagina development (GO:0060068), coronary artery morphogenesis (GO:0060982), pulmonary artery morphogenesis (GO:0061156), positive regulation of oligodendrocyte progenitor proliferation (GO:0070447), cellular response to growth factor stimulus (GO:0071363), amyloid-beta clearance (GO:0097242), neuron projection arborization (GO:0140058), transport across blood-brain barrier (GO:0150104), folate import across plasma membrane (GO:1904447), cranial skeletal system development (GO:1904888), positive regulation of lysosomal protein catabolic process (GO:1905167), outflow tract morphogenesis (GO:0003151), nervous system development (GO:0007399)
GO Molecular Function (10): low-density lipoprotein particle receptor activity (GO:0005041), calcium ion binding (GO:0005509), SH3 domain binding (GO:0017124), insulin-like growth factor I binding (GO:0031994), cargo receptor activity (GO:0038024), hormone binding (GO:0042562), protein-folding chaperone binding (GO:0051087), protein transporter activity (GO:0140318), protein binding (GO:0005515), metal ion binding (GO:0046872)
GO Cellular Component (23): lysosome (GO:0005764), lysosomal membrane (GO:0005765), endoplasmic reticulum (GO:0005783), Golgi apparatus (GO:0005794), plasma membrane (GO:0005886), clathrin-coated pit (GO:0005905), external side of plasma membrane (GO:0009897), apical plasma membrane (GO:0016324), axon (GO:0030424), dendrite (GO:0030425), clathrin-coated endocytic vesicle membrane (GO:0030669), brush border membrane (GO:0031526), endosome lumen (GO:0031904), signaling receptor complex (GO:0043235), extracellular exosome (GO:0070062), endosome (GO:0005768), brush border (GO:0005903), endomembrane system (GO:0012505), membrane (GO:0016020), endocytic vesicle (GO:0030139), cell projection (GO:0042995), organelle (GO:0043226), apical part of cell (GO:0045177)
Reactome top-level categories
Rollup of top-12 pathways:
| Category | Pathways |
|---|---|
| Metabolism of vitamins and cofactors | 2 |
| Metabolism | 2 |
| Metabolism of steroids | 1 |
| Clathrin-mediated endocytosis | 1 |
| Membrane Trafficking | 1 |
| Visual phototransduction | 1 |
| Metabolism of fat-soluble vitamins | 1 |
| Cobalamin (Cbl, vitamin B12) transport and metabolism | 1 |
| Metabolism of water-soluble vitamins and cofactors | 1 |
| Vesicle-mediated transport | 1 |
| Sensory Perception | 1 |
| Metabolism of lipids | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| endomembrane system | 4 |
| vesicle-mediated transport | 2 |
| binding | 2 |
| cytoplasm | 2 |
| intracellular membrane-bounded organelle | 2 |
| membrane | 2 |
| plasma membrane | 2 |
| apical part of cell | 2 |
| neuron projection | 2 |
| cytoplasmic vesicle | 2 |
| cellular anatomical structure | 2 |
| diterpenoid metabolic process | 1 |
| animal organ development | 1 |
| renal system development | 1 |
| primary neural tube formation | 1 |
| tube closure | 1 |
| heart field specification | 1 |
| outflow tract morphogenesis | 1 |
| cardiac septum morphogenesis | 1 |
| ventricular cardiac muscle tissue morphogenesis | 1 |
| cardiac ventricle development | 1 |
| cardiac septum development | 1 |
| primary metabolic process | 1 |
| vesicle budding from membrane | 1 |
| membrane invagination | 1 |
| import into cell | 1 |
| endocytosis | 1 |
| sensory perception of mechanical stimulus | 1 |
| cellular process | 1 |
| gonad development | 1 |
| development of primary male sexual characteristics | 1 |
| macromolecule biosynthetic process | 1 |
| transport | 1 |
| intracellular protein localization | 1 |
| establishment of protein localization | 1 |
| vitamin transport | 1 |
| nitrogen compound transport | 1 |
| monoatomic cation transport | 1 |
| BMP signaling pathway | 1 |
| regulation of BMP signaling pathway | 1 |
Protein interactions and networks
STRING
2184 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| LRP2 | CUBN | O60494 | 999 |
| LRP2 | AMN | Q9BXJ7 | 998 |
| LRP2 | ALB | P02768 | 994 |
| LRP2 | APOE | P02649 | 988 |
| LRP2 | GC | P02774 | 988 |
| LRP2 | CLU | P10909 | 987 |
| LRP2 | LCN2 | P30150 | 984 |
| LRP2 | LTF | P02788 | 968 |
| LRP2 | ANKRA2 | Q9H9E1 | 936 |
| LRP2 | CLCN5 | P51795 | 933 |
| LRP2 | SHH | Q15465 | 925 |
| LRP2 | DAB2 | P98082 | 916 |
| LRP2 | TTR | P02766 | 904 |
| LRP2 | GIPC1 | O14908 | 902 |
| LRP2 | PTH | P01270 | 884 |
IntAct
117 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| CFTR | ESYT2 | psi-mi:“MI:2364”(proximity) | 0.710 |
| SNW1 | AQR | psi-mi:“MI:0914”(association) | 0.650 |
| LRP2 | DLG4 | psi-mi:“MI:0915”(physical association) | 0.610 |
| DLG4 | LRP2 | psi-mi:“MI:0915”(physical association) | 0.610 |
| LRP2 | DLG4 | psi-mi:“MI:0403”(colocalization) | 0.610 |
| DLG4 | LRP2 | psi-mi:“MI:0407”(direct interaction) | 0.610 |
| RIBC2 | LRP2 | psi-mi:“MI:0915”(physical association) | 0.590 |
| MANSC1 | KLRG2 | psi-mi:“MI:0914”(association) | 0.530 |
| INSL6 | POTEF | psi-mi:“MI:0914”(association) | 0.530 |
| SOST | KPNA4 | psi-mi:“MI:0914”(association) | 0.530 |
| TAFA4 | NRP1 | psi-mi:“MI:0914”(association) | 0.530 |
| ZBTB48 | ZBTB24 | psi-mi:“MI:0914”(association) | 0.530 |
| LRPAP1 | LRP4 | psi-mi:“MI:0914”(association) | 0.530 |
| ZNF224 | LRP4 | psi-mi:“MI:0914”(association) | 0.530 |
| SYT1 | PGK2 | psi-mi:“MI:0914”(association) | 0.530 |
| CCN2 | LRP2 | psi-mi:“MI:0914”(association) | 0.530 |
| LRP2 | DLG2 | psi-mi:“MI:0407”(direct interaction) | 0.530 |
| DCLK1 | DCX | psi-mi:“MI:0914”(association) | 0.530 |
| CBX5 | KPNA3 | psi-mi:“MI:0914”(association) | 0.530 |
| FBXO2 | TMEM131L | psi-mi:“MI:0914”(association) | 0.530 |
| PDGFD | DCTN6 | psi-mi:“MI:0914”(association) | 0.530 |
| LGALS1 | PODXL | psi-mi:“MI:0914”(association) | 0.530 |
| CCDC59 | GAPDHS | psi-mi:“MI:0914”(association) | 0.530 |
| GREM2 | ZZEF1 | psi-mi:“MI:0914”(association) | 0.530 |
BioGRID (200): LRP2 (Affinity Capture-MS), LRP2 (Affinity Capture-MS), LRP2 (Affinity Capture-MS), LRP2 (Affinity Capture-MS), LRP2 (Proximity Label-MS), DLG3 (Two-hybrid), MAGI1 (Two-hybrid), LRP2 (Two-hybrid), LRP2BP (Two-hybrid), DAB2 (Two-hybrid), DLG2 (Two-hybrid), LRP2 (Affinity Capture-MS), LRP2 (Affinity Capture-MS), LRP2 (Affinity Capture-MS), LRP2 (Affinity Capture-MS)
ESM2 similar proteins: A2ARV4, C0HL13, F1RWC3, G3V928, O57409, O60494, O70244, P01130, P01131, P01132, P07522, P20063, P35950, P35951, P35952, P35953, P41413, P46023, P56677, P78504, P98155, P98156, P98157, P98158, P98163, P98164, P98165, P98166, Q04592, Q04833, Q07954, Q0IIH7, Q20176, Q28832, Q63722, Q6X0I2, Q90Y57, Q91ZX7, Q92673, Q92824
Diamond homologs: A2AR95, A2ARV4, A4IHY6, C0HL13, E9Q6D8, G3V928, O75074, O75197, O75581, O88204, O88307, O88572, P0DSP1, P13671, P35953, P56677, P61134, P61135, P86091, P98153, P98154, P98155, P98156, P98157, P98158, P98160, P98163, P98164, P98165, P98166, P98167, Q04833, Q06561, Q07954, Q0IIH7, Q14114, Q28832, Q29RU4, Q5HZW5, Q5R662
SIGNOR signaling
4 interactions.
| A | Effect | B | Mechanism |
|---|---|---|---|
| LRP2 | “up-regulates quantity” | PTCH1 | binding |
| CLU | “up-regulates quantity” | LRP2 | binding |
| TIMP2 | “up-regulates quantity” | LRP2 | binding |
| MMP2 | “up-regulates quantity” | LRP2 | binding |
Disease & clinical
Clinical variants and AI predictions
ClinVar
5090 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 101 |
| Likely pathogenic | 96 |
| Uncertain significance | 1923 |
| Likely benign | 2315 |
| Benign | 275 |
Top pathogenic / likely-pathogenic (30)
| Variant ID | HGVS | Classification |
|---|---|---|
| 1071842 | NM_004525.3(LRP2):c.11530dup (p.Ala3844fs) | Pathogenic |
| 1338230 | NM_004525.3(LRP2):c.11276del (p.Cys3759fs) | Pathogenic |
| 1352478 | NM_004525.3(LRP2):c.4572C>G (p.Tyr1524Ter) | Pathogenic |
| 1353323 | NM_004525.3(LRP2):c.2894dup (p.Asn966fs) | Pathogenic |
| 1384479 | NM_004525.3(LRP2):c.8530G>T (p.Gly2844Ter) | Pathogenic |
| 1446088 | NM_004525.3(LRP2):c.12187C>T (p.Arg4063Ter) | Pathogenic |
| 1452044 | NM_004525.3(LRP2):c.10575C>A (p.Cys3525Ter) | Pathogenic |
| 1454324 | NM_004525.3(LRP2):c.13660del (p.Ser4554fs) | Pathogenic |
| 1454326 | NM_004525.3(LRP2):c.13200-2A>G | Pathogenic |
| 1454370 | NM_004525.3(LRP2):c.12689G>A (p.Trp4230Ter) | Pathogenic |
| 1455766 | NM_004525.3(LRP2):c.12556C>T (p.Gln4186Ter) | Pathogenic |
| 1457995 | NM_004525.3(LRP2):c.5243_5244insTTTTTTTTTTTTTTTTTTTTNNNNNNNNNNGGGGTTTCACCGTTTTAGCCGGGATGGTCTCGATCTCCTGACCTCGTGATCCGCCCGCCTCGGCCTCCCCAACCTTTCTT (p.Leu1748delinsPhePhePhePhePhePhePheXaaXaaXaaXaaGlyPheHisArgPheSerArgAspGlyLeuAspLeuLeuThrSerTer) | Pathogenic |
| 1526144 | NM_004525.3(LRP2):c.8244T>A (p.Cys2748Ter) | Pathogenic |
| 1710508 | NM_004525.3(LRP2):c.8452_8452+1del | Pathogenic |
| 2001708 | NM_004525.3(LRP2):c.345C>A (p.Cys115Ter) | Pathogenic |
| 2003271 | NM_004525.3(LRP2):c.12585_12588del (p.Leu4196fs) | Pathogenic |
| 2008657 | NM_004525.3(LRP2):c.5326_5336del (p.Gly1776fs) | Pathogenic |
| 2087187 | NM_004525.3(LRP2):c.12000dup (p.Asp4001Ter) | Pathogenic |
| 2088234 | NM_004525.3(LRP2):c.2397T>G (p.Tyr799Ter) | Pathogenic |
| 2088878 | NM_004525.3(LRP2):c.3104del (p.Asn1035fs) | Pathogenic |
| 2105013 | NM_004525.3(LRP2):c.709C>T (p.Gln237Ter) | Pathogenic |
| 2127309 | NM_004525.3(LRP2):c.2757del (p.Ala920fs) | Pathogenic |
| 2135955 | NM_004525.3(LRP2):c.10010G>A (p.Trp3337Ter) | Pathogenic |
| 21418 | NM_004525.3(LRP2):c.11469_11472del (p.Cys3823fs) | Pathogenic |
| 2188892 | NM_004525.3(LRP2):c.427C>T (p.Gln143Ter) | Pathogenic |
| 2257773 | NM_004525.3(LRP2):c.7401del (p.Ala2468fs) | Pathogenic |
| 2425147 | NC_000002.11:g.(?169999164)(170038849_?)dup | Pathogenic |
| 2695836 | NM_004525.3(LRP2):c.11343C>A (p.Tyr3781Ter) | Pathogenic |
| 2697382 | NM_004525.3(LRP2):c.9651T>G (p.Tyr3217Ter) | Pathogenic |
| 2698959 | NM_004525.3(LRP2):c.2564G>A (p.Trp855Ter) | Pathogenic |
SpliceAI
12369 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 2:169128831:C:CC | acceptor_gain | 1.0000 |
| 2:169129008:ATTAC:A | donor_loss | 1.0000 |
| 2:169129009:TTAC:T | donor_loss | 1.0000 |
| 2:169129010:TAC:T | donor_loss | 1.0000 |
| 2:169129011:ACC:A | donor_loss | 1.0000 |
| 2:169129012:CCTGT:C | donor_loss | 1.0000 |
| 2:169129082:CAC:C | acceptor_gain | 1.0000 |
| 2:169129084:CCTAA:C | acceptor_loss | 1.0000 |
| 2:169129085:C:A | acceptor_loss | 1.0000 |
| 2:169129086:T:G | acceptor_loss | 1.0000 |
| 2:169137490:CACT:C | acceptor_gain | 1.0000 |
| 2:169137491:ACT:A | acceptor_gain | 1.0000 |
| 2:169137492:CT:C | acceptor_gain | 1.0000 |
| 2:169137492:CTC:C | acceptor_gain | 1.0000 |
| 2:169137492:CTCT:C | acceptor_loss | 1.0000 |
| 2:169137493:TCTG:T | acceptor_gain | 1.0000 |
| 2:169137494:C:CC | acceptor_gain | 1.0000 |
| 2:169137494:C:G | acceptor_gain | 1.0000 |
| 2:169137501:C:CT | acceptor_gain | 1.0000 |
| 2:169137507:C:CT | acceptor_gain | 1.0000 |
| 2:169137508:A:T | acceptor_gain | 1.0000 |
| 2:169138575:A:AC | donor_gain | 1.0000 |
| 2:169138575:AC:A | donor_gain | 1.0000 |
| 2:169138576:C:CT | donor_gain | 1.0000 |
| 2:169138576:CC:C | donor_gain | 1.0000 |
| 2:169138576:CCA:C | donor_gain | 1.0000 |
| 2:169138702:TTAAG:T | acceptor_gain | 1.0000 |
| 2:169138703:TAAG:T | acceptor_gain | 1.0000 |
| 2:169138704:AAG:A | acceptor_gain | 1.0000 |
| 2:169138705:AG:A | acceptor_gain | 1.0000 |
AlphaMissense
31224 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 2:169150983:C:G | A4169P | 0.998 |
| 2:169166018:C:G | C3891S | 0.998 |
| 2:169166019:A:T | C3891S | 0.998 |
| 2:169168574:C:G | C3867S | 0.998 |
| 2:169168575:A:T | C3867S | 0.998 |
| 2:169168628:C:G | C3849S | 0.998 |
| 2:169168629:A:T | C3849S | 0.998 |
| 2:169172098:C:G | C3727S | 0.998 |
| 2:169172099:A:T | C3727S | 0.998 |
| 2:169173125:C:G | C3705S | 0.998 |
| 2:169173126:A:T | C3705S | 0.998 |
| 2:169201663:C:G | C2806S | 0.998 |
| 2:169201664:A:T | C2806S | 0.998 |
| 2:169162501:C:G | C3953S | 0.997 |
| 2:169162502:A:T | C3953S | 0.997 |
| 2:169168573:A:C | C3867W | 0.997 |
| 2:169168592:C:G | C3861S | 0.997 |
| 2:169168593:A:T | C3861S | 0.997 |
| 2:169169731:C:G | C3823S | 0.997 |
| 2:169169732:A:T | C3823S | 0.997 |
| 2:169170580:C:G | C3784S | 0.997 |
| 2:169170581:A:T | C3784S | 0.997 |
| 2:169172044:C:G | C3745S | 0.997 |
| 2:169172045:A:T | C3745S | 0.997 |
| 2:169173124:G:C | C3705W | 0.997 |
| 2:169174136:C:A | W3599C | 0.997 |
| 2:169174136:C:G | W3599C | 0.997 |
| 2:169175282:C:G | C3560S | 0.997 |
| 2:169175283:A:T | C3560S | 0.997 |
| 2:169175348:C:G | C3538S | 0.997 |
dbSNP variants (sampled 300 via entrez): RS1000002148 (2:169235159 A>G), RS1000006684 (2:169363455 G>T), RS1000011974 (2:169305388 T>C), RS1000014403 (2:169157262 A>C,G), RS1000041130 (2:169260823 G>C), RS1000053225 (2:169319891 T>C), RS1000068269 (2:169333913 C>T), RS1000073359 (2:169361909 G>A), RS1000073486 (2:169191006 T>C), RS1000086578 (2:169144235 C>T), RS1000098987 (2:169194626 C>T), RS1000099857 (2:169354494 G>A), RS1000101418 (2:169188462 T>A,C), RS1000102020 (2:169212298 A>T), RS1000121098 (2:169255341 G>A,C)
Disease associations
OMIM: gene MIM:600073 | disease phenotypes: MIM:222448, MIM:600634, MIM:108300, MIM:618164
GenCC curated gene-disease
| Disease | Classification | Inheritance |
|---|---|---|
| Donnai-Barrow syndrome | Definitive | Autosomal recessive |
| Stickler syndrome | Moderate | Autosomal dominant |
| intellectual disability | Limited | Autosomal dominant |
| congenital heart disease | No Known Disease Relationship | Autosomal recessive |
ClinGen Gene-Disease Validity (1)
Expert-panel classifications — Definitive > Strong > Moderate > Limited > Disputed > Refuted.
| Disease | Classification | Inheritance |
|---|---|---|
| congenital heart disease | No Known Disease Relationship | AR |
Mondo (11): Donnai-Barrow syndrome (MONDO:0009104), congenital heart disease (MONDO:0005453), intellectual disability (MONDO:0001071), hearing loss disorder (MONDO:0005365), non-syndromic syndactyly (MONDO:0019530), breast ductal adenocarcinoma (MONDO:0005590), primary ovarian failure (MONDO:0005387), prolactin-producing pituitary gland adenoma (MONDO:0010911), Stickler syndrome (MONDO:0019354), cardiac, facial, and digital anomalies with developmental delay (MONDO:0032572), inherited retinal dystrophy (MONDO:0019118)
Orphanet (8): Donnai-Barrow syndrome (Orphanet:2143), Non-syndromic syndactyly (Orphanet:90025), Prolactinoma (Orphanet:2965), Stickler syndrome (Orphanet:828), TRAF7-associated heart defect-digital anomalies-facial dysmorphism-motor and speech delay syndrome (Orphanet:592570), OBSOLETE: Inherited retinal disorder (Orphanet:71862), NON RARE IN EUROPE: Unexplained intellectual disability (Orphanet:319658), NON RARE IN EUROPE: Primary ovarian failure (Orphanet:619)
HPO phenotypes
44 total (30 of 44 shown, HPO-id order):
| HPO | Term |
|---|---|
| HP:0000007 | Autosomal recessive inheritance |
| HP:0000093 | Proteinuria |
| HP:0000130 | Abnormality of the uterus |
| HP:0000256 | Macrocephaly |
| HP:0000260 | Wide anterior fontanel |
| HP:0000272 | Malar flattening |
| HP:0000316 | Hypertelorism |
| HP:0000337 | Broad forehead |
| HP:0000349 | Widow’s peak |
| HP:0000358 | Posteriorly rotated ears |
| HP:0000365 | Hearing impairment |
| HP:0000369 | Low-set ears |
| HP:0000407 | Sensorineural hearing impairment |
| HP:0000455 | Broad nasal tip |
| HP:0000494 | Downslanted palpebral fissures |
| HP:0000518 | Cataract |
| HP:0000520 | Proptosis |
| HP:0000529 | Progressive visual loss |
| HP:0000541 | Retinal detachment |
| HP:0000545 | Myopia |
| HP:0000556 | Retinal dystrophy |
| HP:0000612 | Iris coloboma |
| HP:0000776 | Congenital diaphragmatic hernia |
| HP:0000813 | Bicornuate uterus |
| HP:0000879 | Short sternum |
| HP:0001249 | Intellectual disability |
| HP:0001250 | Seizure |
| HP:0001263 | Global developmental delay |
| HP:0001274 | Agenesis of corpus callosum |
| HP:0001338 | Partial agenesis of the corpus callosum |
GWAS associations
39 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST000581_4 | Urate levels | 4.000000e-08 |
| GCST000873_1 | Anorexia nervosa | 9.000000e-06 |
| GCST002587_3 | Blood pressure (smoking interaction) | 5.000000e-08 |
| GCST003372_28 | Glomerular filtration rate (creatinine) | 4.000000e-08 |
| GCST003790_20 | Glomerular filtration rate | 6.000000e-10 |
| GCST003790_34 | Glomerular filtration rate | 4.000000e-06 |
| GCST004292_50 | Glomerular filtration rate (creatinine) | 4.000000e-06 |
| GCST004752_1 | Relapse in multiple sclerosis | 3.000000e-08 |
| GCST005983_43 | Serum uric acid levels | 1.000000e-13 |
| GCST005984_25 | Glomerular filtration rate | 5.000000e-22 |
| GCST005985_62 | Creatinine levels | 3.000000e-25 |
| GCST006392_1 | Estimated glomerular filtration rate | 5.000000e-07 |
| GCST006393_1 | Serum creatinine levels | 5.000000e-07 |
| GCST006976_118 | Macular thickness | 4.000000e-11 |
| GCST007344_134 | Estimated glomerular filtration rate | 9.000000e-24 |
| GCST007344_51 | Estimated glomerular filtration rate | 1.000000e-06 |
| GCST007344_90 | Estimated glomerular filtration rate | 6.000000e-08 |
| GCST007725_15 | Serum uric acid levels | 7.000000e-14 |
| GCST007733_49 | Serum uric acid levels | 1.000000e-13 |
| GCST007876_7 | Estimated glomerular filtration rate | 3.000000e-22 |
| GCST007916_16 | Hyperuricemia | 2.000000e-16 |
| GCST007917_20 | Estimated glomerular filtration rate | 2.000000e-16 |
| GCST007918_27 | Serum uric acid levels | 2.000000e-16 |
| GCST007919_9 | Creatinine levels | 2.000000e-16 |
| GCST007920_4 | Chronic kidney disease | 2.000000e-16 |
| GCST008058_69 | Estimated glomerular filtration rate | 2.000000e-25 |
| GCST008059_57 | Estimated glomerular filtration rate | 5.000000e-25 |
| GCST008610_1 | Proteinuria | 1.000000e-11 |
| GCST008611_1 | Proteinuria (moderate to severe) | 4.000000e-06 |
| GCST008612_1 | Proteinuria (mild) | 3.000000e-10 |
EFO canonical traits (7, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0004531 | urate measurement |
| EFO:0006335 | systolic blood pressure |
| EFO:0006526 | pack-years measurement |
| EFO:0004952 | disease recurrence |
| EFO:0004761 | uric acid measurement |
| EFO:0009104 | hyperuricemia |
| EFO:0007874 | gut microbiome measurement |
MeSH disease descriptors (8)
| Descriptor | Name | Tree numbers |
|---|---|---|
| D018270 | Carcinoma, Ductal, Breast | C04.557.470.200.025.232.500; C04.557.470.615.132.500; C04.588.180.390; C17.800.090.500.390 |
| D034381 | Hearing Loss | C09.218.458.341; C10.597.751.418.341; C23.888.592.763.393.341 |
| D006330 | Heart Defects, Congenital | C14.240.400; C14.280.400; C16.131.240.400 |
| D008607 | Intellectual Disability | C10.597.606.360; C23.888.592.604.646; F01.700.687; F03.625.539 |
| D016649 | Primary Ovarian Insufficiency | C12.050.351.500.056.630.750; C12.100.250.056.630.750; C19.391.630.750 |
| D015175 | Prolactinoma | C04.557.470.035.625; C04.588.322.609.792; C10.228.140.617.738.675.800; C19.344.609.792; C19.700.734.792 |
| D058499 | Retinal Dystrophies | C11.768.585.658 |
| C536390 | Donnai-Barrow syndrome (supp.) |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: yes
ChEMBL targets (1): CHEMBL3883310 (PROTEIN-PROTEIN INTERACTION)
PharmGKB: 1 entry (VIP=true, CPIC=false)
PharmGKB clinical annotations
2 annotations.
| Variant | Type | Level | Drugs | Phenotypes |
|---|---|---|---|---|
| rs2075252 | Toxicity | 4 | cisplatin | Neoplasms |
| rs2228171 | Toxicity | 3 | cisplatin | Neoplasms |
PharmGKB variants
2 variants.
| Variant | Genes | Level | Score | #Clin annots | Drugs |
|---|---|---|---|---|---|
| rs2075252 | LRP2 | 4 | -1.00 | 1 | cisplatin |
| rs2228171 | LRP2 | 3 | 2.25 | 1 | cisplatin |
CTD chemical–gene interactions
32 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| Valproic Acid | decreases methylation, increases expression, affects expression, decreases expression | 8 |
| trichostatin A | affects cotreatment, decreases expression | 3 |
| sodium arsenite | decreases expression, increases expression, affects methylation | 3 |
| Ethinyl Estradiol | affects expression, decreases expression | 3 |
| bisphenol A | affects expression, decreases expression | 2 |
| entinostat | increases expression, affects cotreatment, decreases expression | 2 |
| Vorinostat | affects cotreatment, decreases expression, increases expression | 2 |
| Panobinostat | affects cotreatment, decreases expression | 2 |
| Benzo(a)pyrene | affects methylation, decreases expression, increases methylation | 2 |
| 2,4,6-tribromophenol | increases expression | 1 |
| methylmercuric chloride | decreases expression | 1 |
| methyleugenol | decreases expression | 1 |
| 2-tert-butylhydroquinone | decreases expression | 1 |
| tetrabromobisphenol A | increases expression | 1 |
| aflatoxin B2 | decreases methylation | 1 |
| 4-(5-benzo(1,3)dioxol-5-yl-4-pyridin-2-yl-1H-imidazol-2-yl)benzamide | affects cotreatment, decreases expression | 1 |
| dorsomorphin | affects cotreatment, decreases expression | 1 |
| pentabrominated diphenyl ether 100 | increases expression | 1 |
| Cadmium | decreases expression | 1 |
| Carbamazepine | affects expression | 1 |
| Cisplatin | decreases expression | 1 |
| Hydrogen Peroxide | affects expression | 1 |
| Methimazole | increases expression | 1 |
| Methotrexate | increases expression | 1 |
| Propylthiouracil | decreases expression | 1 |
| Tetrachlorodibenzodioxin | affects expression | 1 |
| Tobacco Smoke Pollution | increases expression | 1 |
| Triclosan | increases expression | 1 |
| Cyclosporine | decreases expression | 1 |
| Okadaic Acid | decreases expression | 1 |
ChEMBL screening assays
1 unique, capped per target: 1 binding
Representative assays (with source publication via chembl_document):
| Assay ID | Type | Description | Source paper |
|---|---|---|---|
| CHEMBL1268507 | Binding | Effect on interaction between Axin1-GFP and Lrp2 in HEK293 cells transfected with LRP6-myc and Axin2-myc cDNAs at 10 uM by Western blot analysis | Small molecule-mediated disruption of Wnt-dependent signaling in tissue regeneration and cancer. — Nat Chem Biol |
Cellosaurus cell lines
4 cell lines: 1 embryonic stem cell, 1 finite cell line, 1 induced pluripotent stem cell, 1 transformed cell line
First 10 cell lines (id-ordered, not curated):
| Cellosaurus | Name | Category | Sex |
|---|---|---|---|
| CVCL_A5EQ | WAe009-A-56 | Embryonic stem cell | Female |
| CVCL_B4GJ | WG4066 | Finite cell line | Female |
| CVCL_VN07 | WTSIi227-A-1 | Induced pluripotent stem cell | Female |
| CVCL_VN85 | 293-M7 | Transformed cell line | Female |
Clinical trials (associated diseases)
301 trials via MONDO — disease-level, not drug-specific.
| Trial | Phase | Status | Title |
|---|---|---|---|
| NCT00668824 | PHASE4 | UNKNOWN | Improved Diagnosis of Congenital Heart Disease by Magnetic Resonance Imaging Using Vasovist |
| NCT01368705 | PHASE4 | COMPLETED | Nitrogen Balance in Infants After Post Cardiothoracic Surgery |
| NCT01619982 | PHASE4 | COMPLETED | Pre-operative Prophylaxis With Vancomycin and Cefazolin in Pediatric Cardiovascular Surgery Patients |
| NCT02122679 | PHASE4 | WITHDRAWN | Tranexamic Acid Effect on Platelet Aggregation Following Infant Cardiopulmonary Bypass |
| NCT02527811 | PHASE4 | UNKNOWN | Ulinastatin Injection in in Pediatric Patients Undergoing Open Heart Surgery |
| NCT03014700 | PHASE4 | COMPLETED | Fibrinogen Concentrate vs Cryoprecipitate |
| NCT03408340 | PHASE4 | TERMINATED | Paravertebral Nerve Blocks in Neonates |
| NCT03630796 | PHASE4 | UNKNOWN | Effect of Sevoflurane in Postoperative Troponin I Levels in Children Undergoing Congenital Heart Defects Surgery |
| NCT03667703 | PHASE4 | COMPLETED | Stress Ulcer Prophylaxis Versus Placebo in Critically Ill Infants With Congenital Heart Disease |
| NCT04453761 | PHASE4 | UNKNOWN | Thiamine Influenced on Substrate Energy Effectiveness in Indonesian Children Undergoing Cardiopulmonary Bypass |
| NCT06668389 | PHASE4 | RECRUITING | Sodium-Glucose Cotransporter 2 Inhibitors for Repaired Tetralogy of Fallot Patients for Enhancement of Cardio-Pulmonary Status Trial |
| NCT07499154 | PHASE4 | NOT_YET_RECRUITING | Perioperative Lidocaine for Lung Protection in Infants Undergoing Cardiac Surgery |
| NCT00000470 | PHASE3 | COMPLETED | Infant Heart Surgery: Central Nervous System Sequelae of Circulatory Arrest |
| NCT00000494 | PHASE3 | COMPLETED | Management of Patent Ductus in Premature Infants |
| NCT01134302 | PHASE3 | UNKNOWN | Hybrid Versus Norwood Management Strategies in Infants Undergoing Single Ventricle Palliation |
| NCT01607983 | PHASE3 | WITHDRAWN | Effects of Pulmonary Vasodilation Upon VA Coupling in Fontan Patients |
| NCT01662011 | PHASE3 | UNKNOWN | Application of Neurally Adjusted Ventilatory Assist to Children After Congenital Cardiac Surgery |
| NCT02320669 | PHASE3 | COMPLETED | Phase 3 Triiodothyronine Supplementation for Infants After Cardiopulmonary Bypass |
| NCT02615262 | PHASE3 | COMPLETED | Intraoperative Dexamethasone in Pediatric Cardiac Surgery |
| NCT03153137 | PHASE3 | COMPLETED | Clinical Study Assessing the Efficacy and Safety of Macitentan in Fontan-palliated Subjects |
| NCT03154476 | PHASE3 | COMPLETED | Role of Sildenafil for Fontan Associated Liver Disease (SiFALD) Study |
| NCT04536194 | PHASE3 | COMPLETED | Dopamine Versus Norepinephrine Under General Anesthesia |
| NCT04702373 | PHASE3 | ACTIVE_NOT_RECRUITING | Training in Exercise Activities and Motion for Growth (TEAM 4 Growth) RCT |
| NCT05049590 | PHASE3 | COMPLETED | Acute Normovolemic Hemodilution in Complex Cardiac Surgery |
| NCT06406517 | PHASE3 | UNKNOWN | Comparative Effectiveness of Gadopiclenol for Evaluation of Adult Congenital Heart Anatomy and Hemodynamics |
| NCT06693674 | PHASE3 | RECRUITING | Effect of Sacubitril-Valsartan on Cardiac Structure and Function |
| NCT06955260 | PHASE3 | NOT_YET_RECRUITING | SGLT2 Inhibition With Empagliflozin in Fontan Circulatory Failure |
| NCT00115375 | PHASE2 | COMPLETED | Platelet Aggregation Inhibition in Children on Clopidogrel (PICOLO) |
| NCT00350220 | PHASE2 | COMPLETED | Transfusion Strategies in Pediatric Cardiothoracic Surgery |
| NCT00374088 | PHASE2 | COMPLETED | N-Acetylcysteine in Neonatal Congenital Heart Surgery (INACT Study) |
| NCT00538785 | PHASE2 | COMPLETED | A Study to Evaluate MEDI-524 In Children With Hemodynamically Significant Congenital Heart Disease |
| NCT00770705 | PHASE2 | WITHDRAWN | Parenteral Phenoxybenzamine During Congenital Heart Disease Surgery |
| NCT00919945 | PHASE2 | TERMINATED | Impact of Early Enteral Feeding on Splanchnic Blood Flow After Surgery for Critical Heart Disease in the Newborn |
| NCT01063712 | PHASE2 | COMPLETED | Safety and Effectiveness of the Device Nit-Occlud® PDA-R |
| NCT01069510 | PHASE2 | COMPLETED | Spironolactone in Adult Congenital Heart Disease |
| NCT01189981 | PHASE2 | COMPLETED | Effect of eHealth Encouragements to Intensive Exercise in Adolescents With Congenital Heart Disease |
| NCT01330433 | PHASE2 | COMPLETED | Effects of CoSeal on Bleeding & Adhesions in Pediatric Heart Surgery |
| NCT01662037 | PHASE2 | COMPLETED | Bosentan Therapy in Children With Functional Single Ventricle |
| NCT01668264 | PHASE2 | UNKNOWN | Imaging Assessment of Diastolic Function |
| NCT01827059 | PHASE2 | UNKNOWN | Bosentan In Exercise Induced Pulmonary Arterial Hypertension in CongenitaL Heart diseasE |
Related Atlas pages
- Associated diseases: congenital heart disease, Stickler syndrome, Donnai-Barrow syndrome, intellectual disability
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): cardiac, facial, and digital anomalies with developmental delay, congenital heart disease, Donnai-Barrow syndrome, intellectual disability, non-syndromic syndactyly, prolactin-producing pituitary gland adenoma, Stickler syndrome