SIX2
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Summary
SIX2 (SIX homeobox 2, HGNC:10888) is a protein-coding gene on chromosome 2p21, encoding Homeobox protein SIX2 (Q9NPC8). Transcription factor that plays an important role in the development of several organs, including kidney, skull and stomach.
This gene is a member of the vertebrate gene family which encode proteins homologous to the Drosophila ‘sine oculis’ homeobox protein. The encoded protein is a transcription factor which, like other members of this gene family, may be involved in limb or eye development.
Source: NCBI Gene 10736 — RefSeq curated summary.
At a glance
- Gene–disease (curated): congenital anomaly of kidney and urinary tract (Limited, GenCC)
- GWAS associations: 11
- Clinical variants (ClinVar): 119 total — 1 pathogenic, 1 likely-pathogenic
- Phenotypes (HPO): 22
- MANE Select transcript:
NM_016932
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:10888 |
| Approved symbol | SIX2 |
| Name | SIX homeobox 2 |
| Location | 2p21 |
| Locus type | gene with protein product |
| Status | Approved |
| Ensembl gene | ENSG00000170577 |
| Ensembl biotype | protein_coding |
| OMIM | 604994 |
| Entrez | 10736 |
Gene structure
Transcript identifiers
Ensembl transcripts: 2 — 2 protein_coding
ENST00000303077, ENST00000933251
RefSeq mRNA: 1 — MANE Select: NM_016932
NM_016932
CCDS: CCDS1822
Canonical transcript exons
ENST00000303077 — 2 exons
| Exon | Start | End |
|---|---|---|
| ENSE00001158942 | 45008551 | 45009452 |
| ENSE00001165147 | 45005182 | 45006485 |
Expression profiles
Bgee: expression breadth ubiquitous, 156 present calls, max score 92.44.
FANTOM5 (CAGE): breadth broad, TPM avg 2.1341 / max 100.2125, expressed in 511 samples.
FANTOM5 promoters (3 alternative TSS)
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 28163 | 1.6094 | 444 |
| 28164 | 0.4573 | 229 |
| 28165 | 0.0674 | 25 |
Top tissues by expression
260 total, by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| olfactory segment of nasal mucosa | UBERON:0005386 | 92.44 | gold quality |
| gastrocnemius | UBERON:0001388 | 87.41 | gold quality |
| parotid gland | UBERON:0001831 | 86.72 | gold quality |
| muscle of leg | UBERON:0001383 | 86.51 | gold quality |
| hindlimb stylopod muscle | UBERON:0004252 | 85.67 | gold quality |
| nasal cavity mucosa | UBERON:0001826 | 85.55 | gold quality |
| nasal cavity epithelium | UBERON:0005384 | 85.00 | gold quality |
| tendon of biceps brachii | UBERON:0008188 | 83.30 | gold quality |
| muscle organ | UBERON:0001630 | 83.26 | gold quality |
| male germ line stem cell (sensu Vertebrata) in testis | CL:0000089 ∩ UBERON:0000473 | 81.38 | gold quality |
| tibialis anterior | UBERON:0001385 | 78.85 | silver quality |
| palpebral conjunctiva | UBERON:0001812 | 77.72 | gold quality |
| pituitary gland | UBERON:0000007 | 77.70 | gold quality |
| tendon | UBERON:0000043 | 77.08 | gold quality |
| mucosa of paranasal sinus | UBERON:0005030 | 76.81 | silver quality |
| omental fat pad | UBERON:0010414 | 76.45 | gold quality |
| saliva-secreting gland | UBERON:0001044 | 76.37 | gold quality |
| peritoneum | UBERON:0002358 | 76.36 | gold quality |
| periodontal ligament | UBERON:0008266 | 76.15 | gold quality |
| epithelium of bronchus | UBERON:0002031 | 76.01 | gold quality |
| adipose tissue of abdominal region | UBERON:0007808 | 75.78 | gold quality |
| bronchus | UBERON:0002185 | 75.72 | gold quality |
| islet of Langerhans | UBERON:0000006 | 75.61 | gold quality |
| calcaneal tendon | UBERON:0003701 | 75.23 | gold quality |
| adenohypophysis | UBERON:0002196 | 75.07 | gold quality |
| deltoid | UBERON:0001476 | 74.45 | silver quality |
| skeletal muscle tissue | UBERON:0001134 | 74.19 | gold quality |
| minor salivary gland | UBERON:0001830 | 73.84 | gold quality |
| thoracic aorta | UBERON:0001515 | 73.64 | gold quality |
| descending thoracic aorta | UBERON:0002345 | 73.46 | gold quality |
Single-cell (SCXA)
Detected in 1 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-ANND-3 | yes | 3.73 |
Regulation
Is transcription factor: yes
Downstream targets (CollecTRI)
2 targets.
| Target | Regulation |
|---|---|
| GDNF | Activation |
| SIX2 | Activation |
JASPAR motifs
| Motif | Name | Family |
|---|---|---|
| MA1119.1 | SIX2 | HD-SINE |
| MA1119.2 | SIX2 | HD-SINE |
JASPAR matrix evidence (PMIDs): PMID:15327782
Upstream regulators (CollecTRI, top): HOXA2, SIX2
miRNA regulators (miRDB)
66 targeting SIX2, 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-3163 | 100.00 | 77.23 | 8605 |
| HSA-MIR-190A-3P | 100.00 | 80.35 | 5520 |
| HSA-MIR-4510 | 100.00 | 66.60 | 2050 |
| HSA-MIR-6127 | 100.00 | 66.76 | 2188 |
| HSA-MIR-6129 | 100.00 | 66.46 | 2080 |
| HSA-MIR-6130 | 100.00 | 66.69 | 2012 |
| HSA-MIR-6133 | 100.00 | 66.48 | 2064 |
| HSA-MIR-4262 | 100.00 | 73.26 | 3931 |
| HSA-MIR-7110-3P | 100.00 | 73.18 | 2486 |
| HSA-MIR-6833-3P | 100.00 | 70.63 | 3197 |
| HSA-MIR-6758-5P | 100.00 | 66.21 | 1470 |
| HSA-MIR-4768-5P | 100.00 | 69.49 | 2861 |
| HSA-MIR-6856-5P | 100.00 | 65.47 | 1298 |
| HSA-MIR-6077 | 99.99 | 68.04 | 2299 |
| 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-548N | 99.98 | 71.94 | 4170 |
| HSA-MIR-548AN | 99.97 | 70.91 | 2817 |
| HSA-MIR-590-3P | 99.96 | 74.34 | 6478 |
| HSA-MIR-548E-5P | 99.89 | 72.73 | 4486 |
| HSA-MIR-576-5P | 99.84 | 70.46 | 2582 |
| HSA-MIR-765 | 99.84 | 68.24 | 2442 |
| HSA-MIR-204-5P | 99.79 | 71.62 | 2439 |
| HSA-MIR-211-5P | 99.79 | 71.65 | 2440 |
| HSA-MIR-6794-5P | 99.76 | 66.38 | 1048 |
| HSA-MIR-623 | 99.76 | 68.16 | 1170 |
| HSA-MIR-11181-3P | 99.75 | 66.38 | 2205 |
| HSA-MIR-4428 | 99.73 | 66.41 | 1733 |
Literature-anchored findings (GeneRIF, showing 25)
- Defects in these proteins could affect kidney development at multiple stages, leading to the congenital anomalies observed in patients with renal hypodysplasia (PMID:18305125)
- Lack of mutations in the coding regions of SIX2 among the sporadic microtia patients (PMID:20542577)
- Nuclear protein & mRNA expression of SIX2 were similar across all stages of disease, in favorable or unfavorable histology & in treatment failure or success. It is not found in normal kidney. (PMID:22703800)
- in tumors with DGCR8 E518K and DROSHA exon 29 (miRNAPG-HS) mutations … greater prevalence of tumors with blastemal predominant histology in patients with miRNAPG-HS and/or SIX1/2 Q177R mutations (PMID:25670082)
- Recurrent mutations included a hotspot mutation (Q177R) in the homeo-domain of SIX1 and SIX2 in tumors with high proliferative potential (18.1% of blastemal cases); mutations in the DROSHA/DGCR8 microprocessor genes (PMID:25670083)
- SIX2 overexpression and concomitantly decreased promoter methylation. (PMID:25921281)
- SIX2 deletion is associated with frontonasal dysplasia syndrome. (PMID:26581443)
- These data suggest differential SIX-factor regulation might have contributed to species differences in nephron progenitor programs such as the duration of nephrogenesis and the final nephron count (PMID:26884396)
- We suggest SIX2 haploinsufficiency as a potential congenital factor could be attributed to developmental malformation of the middle ear ossicles and upper eyelid. (PMID:27383657)
- elevated expressions of SIX2, SIX4, and SIX6 predicted poor overall survival (OS) in NSCLC and poor relapse-free survival (RFS) in lung adenocarcinoma (PMID:27821176)
- these findings delineate the important function of the TGFbeta signaling pathway in the early development of kidney and TbetaRII was shown to be able to promote the expression of Six2 through Smad3 mediating transcriptional regulation and in turn activate the proliferation of MM cells. (PMID:28420207)
- DDX3-mediated colorectal cancer aggressiveness and cetuximab resistance were regulated by the YAP1/SIX2 axis in KRAS-wild type cells and further confirmed in animal models. (PMID:28435452)
- the phenotypic spectrum of SIX2 haploinsufficiency is widened. Moreover, 2p21 microdeletions with SIX2 haploinsufficiency appear to lead to a recognizable phenotype with facial features resembling blepharophimosis-ptosis-epicanthus inversus syndrome. (PMID:29315086)
- Six2 is negatively correlated with good prognosis and decreases 5-FU sensitivity via suppressing E-cadherin expression in HCC cells. (PMID:29772441)
- High Six2 expression is associated with Late-Stage Metastasis in triple-negative breast cancer. (PMID:30606720)
- findings identify a NIK-SIX signalling axis that fine-tunes inflammatory gene expression programs under both physiological and pathological conditions (PMID:30894749)
- Six2 expression negatively correlated with the overall survival of clear cell renal cell carcinoma patients. (PMID:31090452)
- Glomerular Six-2 deposits in renal biopsy should be validated in prospective series as a predictor of renal outcome in renal amyloidosis (PMID:31343337)
- The six2 knockdown attenuated the stemness of Renal cell carcinoma (RCC) cells, which was evident by decreased spheroid formation ability and stemness marker (sox2 and nanog) expression. (PMID:31420918)
- Elevated Six2 expression in hepatocellular carcinoma patients was associated with negative prognosis. Upregulated Six2 promoted tumor growth and facilitated HCC metastasis via TGF-beta/Smad signal pathway. (PMID:31564506)
- SIX2 Regulates Human beta Cell Differentiation from Stem Cells and Functional Maturation In Vitro. (PMID:32460030)
- Maternal SLE and brachytelephalangic chondrodysplasia punctata in a patient with unrelated de novo RAF1 and SIX2 variants. (PMID:32506814)
- Analysis of the mutational status of SIX1/2 and microRNA processing genes in paired primary and relapsed Wilms tumors and association with relapse. (PMID:33281191)
- Overexpression of Sine Oculis Homeobox Homolog 2 Predicts Poor Survival and Clinical Parameters of Patients with Colon Adenocarcinoma. (PMID:33334785)
- De novo SIX2 activation in human kidneys treated with neonatal kidney stem/progenitor cells. (PMID:35913414)
Cross-species orthologs
5 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | six2a | ENSDARG00000058004 |
| mus_musculus | Six2 | ENSMUSG00000024134 |
| rattus_norvegicus | Six2 | ENSRNOG00000085124 |
| drosophila_melanogaster | Optix | FBGN0025360 |
| caenorhabditis_elegans | WBGENE00000453 |
Paralogs (6): SIX4 (ENSG00000100625), SIX1 (ENSG00000126778), SIX3 (ENSG00000138083), SIX5 (ENSG00000177045), SIX6 (ENSG00000184302), ANHX (ENSG00000227059)
Protein
Protein identifiers
Homeobox protein SIX2 — Q9NPC8 (reviewed: Q9NPC8)
Alternative names: Sine oculis homeobox homolog 2
All UniProt accessions (1): Q9NPC8
UniProt curated annotations — full annotation on UniProt →
Function. Transcription factor that plays an important role in the development of several organs, including kidney, skull and stomach. During kidney development, maintains cap mesenchyme multipotent nephron progenitor cells in an undifferentiated state by opposing the inductive signals emanating from the ureteric bud and cooperates with WNT9B to promote renewing progenitor cells proliferation. Acts through its interaction with TCF7L2 and OSR1 in a canonical Wnt signaling independent manner preventing transcription of differentiation genes in cap mesenchyme such as WNT4. Also acts independently of OSR1 to activate expression of many cap mesenchyme genes, including itself, GDNF and OSR1. During craniofacial development plays a role in growth and elongation of the cranial base through regulation of chondrocyte differentiation. During stomach organogenesis, controls pyloric sphincter formation and mucosal growth through regulation of a gene network including NKX2-5, BMPR1B, BMP4, SOX9 and GREM1. During branchial arch development, acts to mediate HOXA2 control over the insulin-like growth factor pathway. May also be involved in limb tendon and ligament development. Plays a role in cell proliferation and migration.
Subunit / interactions. Interacts with TCF7L2; in a canonical Wnt signaling independent manner; prevents transcription of differentiation genes in cap mesenchyme. Interacts with OSR1; form a strong repressor complex with TCF7L2, TLE2 and TLE3 to prevent the activation of Wnt/beta-catenin target genes in the cap mesenchyme. Interacts with HOXA11, EYA1 and EYA3.
Subcellular location. Nucleus.
Tissue specificity. Strongly expressed in skeletal muscle. Expressed in Wilms’ tumor and in the cap mesenchyme of fetal kidney (at protein level).
Similarity. Belongs to the SIX/Sine oculis homeobox family.
RefSeq proteins (1): NP_058628* (*=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR001356 | HD | Domain |
| IPR009057 | Homeodomain-like_sf | Homologous_superfamily |
| IPR017970 | Homeobox_CS | Conserved_site |
| IPR031701 | SIX1_SD | Domain |
Pfam: PF00046, PF16878
UniProt features (9 total): compositionally biased region 3, sequence variant 3, chain 1, DNA-binding region 1, region of interest 1
Structure
Experimental structures (PDB)
0 structures.
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q9NPC8-F1 | 75.99 | 0.49 |
Function
Pathways and Gene Ontology
Reactome pathways
3 pathways
| ID | Pathway |
|---|---|
| R-HSA-9830674 | Formation of the ureteric bud |
| R-HSA-1266738 | Developmental Biology |
| R-HSA-9830369 | Kidney development |
MSigDB gene sets: 257 (showing top):
GOBP_MORPHOGENESIS_OF_AN_EPITHELIUM, GOBP_METANEPHRIC_NEPHRON_MORPHOGENESIS, GOBP_EMBRYO_DEVELOPMENT_ENDING_IN_BIRTH_OR_EGG_HATCHING, GOBP_EPITHELIUM_DEVELOPMENT, GOBP_SOMATIC_STEM_CELL_POPULATION_MAINTENANCE, WANG_CLIM2_TARGETS_UP, BENPORATH_ES_WITH_H3K27ME3, GOBP_AXIS_SPECIFICATION, GOBP_REGULATION_OF_MORPHOGENESIS_OF_A_BRANCHING_STRUCTURE, GOBP_METANEPHROS_DEVELOPMENT, GOBP_CARTILAGE_DEVELOPMENT, GOBP_SKELETAL_SYSTEM_DEVELOPMENT, GOBP_INTRACELLULAR_PROTEIN_TRANSPORT, GOBP_REGULATION_OF_CARTILAGE_DEVELOPMENT, GOBP_FORMATION_OF_PRIMARY_GERM_LAYER
GO Biological Process (29): kidney development (GO:0001822), chondrocyte differentiation (GO:0002062), mesenchymal to epithelial transition involved in metanephros morphogenesis (GO:0003337), regulation of transcription by RNA polymerase II (GO:0006357), protein import into nucleus (GO:0006606), mesodermal cell fate specification (GO:0007501), cell population proliferation (GO:0008283), anatomical structure morphogenesis (GO:0009653), anterior/posterior axis specification (GO:0009948), cell migration (GO:0016477), regulation of ossification (GO:0030278), negative regulation of epithelial cell differentiation (GO:0030857), regulation of chondrocyte differentiation (GO:0032330), middle ear morphogenesis (GO:0042474), embryonic digestive tract morphogenesis (GO:0048557), embryonic cranial skeleton morphogenesis (GO:0048701), nephron development (GO:0072006), nephron morphogenesis (GO:0072028), mesenchymal stem cell maintenance involved in nephron morphogenesis (GO:0072038), condensed mesenchymal cell proliferation (GO:0072137), mesenchymal cell differentiation involved in kidney development (GO:0072161), regulation of branching involved in ureteric bud morphogenesis (GO:0090189), mesenchymal stem cell proliferation (GO:0097168), positive regulation of chondrocyte proliferation (GO:1902732), metanephros development (GO:0001656), regulation of DNA-templated transcription (GO:0006355), epithelial cell differentiation (GO:0030855), positive regulation of transcription by RNA polymerase II (GO:0045944), embryonic skeletal system morphogenesis (GO:0048704)
GO Molecular Function (9): RNA polymerase II cis-regulatory region sequence-specific DNA binding (GO:0000978), DNA-binding transcription factor activity, RNA polymerase II-specific (GO:0000981), DNA-binding transcription activator activity, RNA polymerase II-specific (GO:0001228), DNA-binding transcription factor activity (GO:0003700), protein-containing complex binding (GO:0044877), sequence-specific double-stranded DNA binding (GO:1990837), DNA binding (GO:0003677), protein binding (GO:0005515), sequence-specific DNA binding (GO:0043565)
GO Cellular Component (3): chromatin (GO:0000785), nucleus (GO:0005634), transcription regulator complex (GO:0005667)
Reactome top-level categories
Rollup of top-2 pathways:
| Category | Pathways |
|---|---|
| Kidney development | 1 |
| Developmental Biology | 1 |
GO top-level categories
Rollup of top GO terms by namespace:
| Category | Terms |
|---|---|
| RNA polymerase II transcription regulatory region sequence-specific DNA binding | 3 |
| regulation of DNA-templated transcription | 2 |
| anatomical structure development | 2 |
| binding | 2 |
| animal organ development | 1 |
| renal system development | 1 |
| cell differentiation | 1 |
| cartilage development | 1 |
| metanephros morphogenesis | 1 |
| epithelial cell differentiation involved in kidney development | 1 |
| mesenchymal to epithelial transition | 1 |
| metanephric renal vesicle morphogenesis | 1 |
| transcription by RNA polymerase II | 1 |
| intracellular protein transport | 1 |
| protein localization to nucleus | 1 |
| import into nucleus | 1 |
| establishment of protein localization to organelle | 1 |
| cell fate specification | 1 |
| mesodermal cell fate commitment | 1 |
| cellular process | 1 |
| developmental process | 1 |
| axis specification | 1 |
| anterior/posterior pattern specification | 1 |
| cell motility | 1 |
| ossification | 1 |
| regulation of multicellular organismal process | 1 |
| epithelial cell differentiation | 1 |
| regulation of epithelial cell differentiation | 1 |
| negative regulation of cell differentiation | 1 |
| chondrocyte differentiation | 1 |
| regulation of cell differentiation | 1 |
| regulation of cartilage development | 1 |
| ear morphogenesis | 1 |
| embryonic morphogenesis | 1 |
| digestive tract morphogenesis | 1 |
| embryonic organ morphogenesis | 1 |
| embryonic digestive tract development | 1 |
| embryonic skeletal system morphogenesis | 1 |
| cranial skeletal system development | 1 |
| kidney development | 1 |
Protein interactions and networks
STRING
1286 interactions, top by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| SIX2 | EYA1 | Q99502 | 915 |
| SIX2 | SALL1 | Q9NSC2 | 859 |
| SIX2 | EYA2 | O00167 | 844 |
| SIX2 | PAX2 | Q02962 | 784 |
| SIX2 | CITED1 | Q99966 | 784 |
| SIX2 | FOXD1 | Q16676 | 739 |
| SIX2 | WT1 | P19544 | 726 |
| SIX2 | EYA3 | Q99504 | 726 |
| SIX2 | WNT9B | O14905 | 712 |
| SIX2 | LHX1 | P48742 | 683 |
| SIX2 | DACH1 | Q9UI36 | 676 |
| SIX2 | LBX1 | P52954 | 646 |
| SIX2 | HOXB7 | P09629 | 643 |
| SIX2 | WNT4 | P56705 | 638 |
| SIX2 | PAX3 | P23760 | 625 |
IntAct
22 interactions, top by confidence:
| A | B | Type | Score |
|---|---|---|---|
| CLIP4 | SIX2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| TLE5 | SIX2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| TLE3 | SIX2 | psi-mi:“MI:0915”(physical association) | 0.560 |
| SIX2 | EYA2 | psi-mi:“MI:0914”(association) | 0.530 |
| SIX2 | KPNB1 | psi-mi:“MI:0914”(association) | 0.530 |
| SIX2 | RELA | psi-mi:“MI:0915”(physical association) | 0.510 |
| RELA | SIX2 | psi-mi:“MI:0915”(physical association) | 0.510 |
| SIX2 | RELB | psi-mi:“MI:0915”(physical association) | 0.400 |
| SIX2 | psi-mi:“MI:0915”(physical association) | 0.400 | |
| SIX2 | psi-mi:“MI:0915”(physical association) | 0.370 | |
| SIX2 | psi-mi:“MI:0915”(physical association) | 0.370 | |
| CDKN2A | SIX2 | psi-mi:“MI:0915”(physical association) | 0.370 |
| SIX2 | EYA4 | psi-mi:“MI:0914”(association) | 0.350 |
| EYA1 | SPAG9 | psi-mi:“MI:0914”(association) | 0.350 |
| EYA4 | SUPT5H | psi-mi:“MI:0914”(association) | 0.350 |
| TLE3 | SIX2 | psi-mi:“MI:0915”(physical association) | 0.000 |
| SIX2 | TLE5 | psi-mi:“MI:0915”(physical association) | 0.000 |
| TLE5 | SIX2 | psi-mi:“MI:0915”(physical association) | 0.000 |
BioGRID (47): SIX2 (Affinity Capture-MS), SIX2 (Affinity Capture-MS), EYA1 (Affinity Capture-MS), EYA4 (Affinity Capture-MS), EYA3 (Affinity Capture-MS), ERCC6L (Affinity Capture-MS), PRKD1 (Affinity Capture-MS), BCDIN3D (Affinity Capture-MS), EYA2 (Affinity Capture-MS), CHMP3 (Affinity Capture-MS), CHMP1A (Affinity Capture-MS), ANKHD1 (Affinity Capture-MS), PSMG3 (Affinity Capture-MS), THNSL1 (Affinity Capture-MS), MARK2 (Affinity Capture-MS)
ESM2 similar proteins: A0A8M9QN10, A1YER0, A2ARM1, A2D5H2, E9Q0S6, O35260, O42406, O43147, O54943, O73916, O93307, O95343, O95475, P12813, P20263, P49335, P59729, Q13009, Q15475, Q1LVK9, Q5PQS0, Q5PRF9, Q5SXA9, Q5U464, Q62231, Q62232, Q62233, Q64249, Q6DHF9, Q6NXJ0, Q6NZ04, Q6TNU3, Q6ZUJ8, Q7TSI1, Q7TSZ8, Q80TC6, Q80XS6, Q8K3T2, Q8WYP3, Q91474
Diamond homologs: A1YER0, A2D5H2, A6NDR6, A8K0S8, A8WL06, B3DM47, B4F6V6, O00470, O04134, O04135, O14770, O17894, O22299, O35317, O35984, O42406, O46339, O65034, O73916, O80416, O93307, O95343, O95475, P10842, P24345, P40424, P40425, P40426, P40427, P41778, P41779, P41817, P46608, P46609, P46639, P46640, P48731, P53147, P56661, P56662
SIGNOR signaling
0 interactions.
Disease & clinical
Clinical variants and AI predictions
ClinVar
119 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 1 |
| Likely pathogenic | 1 |
| Uncertain significance | 70 |
| Likely benign | 37 |
| Benign | 9 |
Top pathogenic / likely-pathogenic (2)
| Variant ID | HGVS | Classification |
|---|---|---|
| 2684486 | GRCh37/hg19 2p21(chr2:45037498-45298668)x1 | Pathogenic |
| 393288 | NM_016932.5(SIX2):c.760G>A (p.Ala254Thr) | Likely pathogenic |
SpliceAI
270 predictions. Top by Δscore:
| Variant | Effect | Δscore |
|---|---|---|
| 2:45008543:A:AC | donor_gain | 1.0000 |
| 2:45008544:C:CT | donor_gain | 1.0000 |
| 2:45008544:CTCGT:C | donor_gain | 1.0000 |
| 2:45006486:C:CC | acceptor_gain | 0.9900 |
| 2:45006492:G:GC | acceptor_gain | 0.9900 |
| 2:45008544:CT:C | donor_gain | 0.9900 |
| 2:45008554:T:A | donor_gain | 0.9900 |
| 2:45006481:TCTCC:T | acceptor_gain | 0.9800 |
| 2:45006482:CTCC:C | acceptor_gain | 0.9800 |
| 2:45006482:CTCCC:C | acceptor_gain | 0.9800 |
| 2:45006483:TCC:T | acceptor_gain | 0.9800 |
| 2:45006483:TCCCT:T | acceptor_gain | 0.9800 |
| 2:45006484:CC:C | acceptor_gain | 0.9800 |
| 2:45006484:CCC:C | acceptor_gain | 0.9800 |
| 2:45006484:CCCTG:C | acceptor_loss | 0.9800 |
| 2:45006485:CC:C | acceptor_gain | 0.9800 |
| 2:45006487:T:G | acceptor_loss | 0.9800 |
| 2:45006495:C:CT | acceptor_gain | 0.9800 |
| 2:45008536:TCTAC:T | donor_loss | 0.9800 |
| 2:45008537:CTACT:C | donor_loss | 0.9800 |
| 2:45008538:TACTT:T | donor_loss | 0.9800 |
| 2:45008539:AC:A | donor_loss | 0.9800 |
| 2:45008540:CT:C | donor_loss | 0.9800 |
| 2:45008541:TTAC:T | donor_loss | 0.9800 |
| 2:45008542:TAC:T | donor_loss | 0.9800 |
| 2:45008543:A:AG | donor_loss | 0.9800 |
| 2:45008544:CTCG:C | donor_gain | 0.9800 |
| 2:45008545:TCGTA:T | donor_loss | 0.9800 |
| 2:45008546:CGTA:C | donor_loss | 0.9800 |
| 2:45008547:GTAC:G | donor_loss | 0.9800 |
AlphaMissense
1887 scored. Top likely-pathogenic:
| Variant | Protein change | am_pathogenicity |
|---|---|---|
| 2:45008572:C:G | R180P | 1.000 |
| 2:45008572:C:T | R180Q | 1.000 |
| 2:45008573:G:A | R180W | 1.000 |
| 2:45008573:G:C | R180G | 1.000 |
| 2:45008575:T:A | D179V | 1.000 |
| 2:45008576:C:G | D179H | 1.000 |
| 2:45008578:C:A | R178L | 1.000 |
| 2:45008578:C:G | R178P | 1.000 |
| 2:45008578:C:T | R178H | 1.000 |
| 2:45008579:G:A | R178C | 1.000 |
| 2:45008579:G:C | R178G | 1.000 |
| 2:45008579:G:T | R178S | 1.000 |
| 2:45008580:C:A | Q177H | 1.000 |
| 2:45008580:C:G | Q177H | 1.000 |
| 2:45008581:T:C | Q177R | 1.000 |
| 2:45008581:T:G | Q177P | 1.000 |
| 2:45008582:G:T | Q177K | 1.000 |
| 2:45008584:C:A | R176L | 1.000 |
| 2:45008584:C:G | R176P | 1.000 |
| 2:45008584:C:T | R176Q | 1.000 |
| 2:45008585:G:A | R176W | 1.000 |
| 2:45008585:G:C | R176G | 1.000 |
| 2:45008587:C:G | R175P | 1.000 |
| 2:45008588:G:C | R175G | 1.000 |
| 2:45008589:G:C | N174K | 1.000 |
| 2:45008589:G:T | N174K | 1.000 |
| 2:45008590:T:A | N174I | 1.000 |
| 2:45008590:T:C | N174S | 1.000 |
| 2:45008590:T:G | N174T | 1.000 |
| 2:45008591:T:A | N174Y | 1.000 |
dbSNP variants (sampled 300 via entrez): RS1000075535 (2:45006659 G>A), RS1000529074 (2:45010727 G>C,T), RS1000897434 (2:45011209 C>G,T), RS1001124272 (2:45005741 A>G), RS1001237437 (2:45007015 G>A), RS1002113655 (2:45005177 G>A), RS1002594544 (2:45007680 G>A), RS1002658879 (2:45006058 G>A,T), RS1002912470 (2:45008247 G>A), RS1002922576 (2:45008081 G>A), RS1003138261 (2:45008008 T>A), RS1003727325 (2:45009363 C>A), RS1003996649 (2:45009150 C>G), RS1004051576 (2:45007346 C>T), RS1004244007 (2:45008988 C>T)
Disease associations
OMIM: gene MIM:604994 | disease phenotypes: MIM:610805, MIM:157170
GenCC curated gene-disease
| Disease | Classification | Inheritance |
|---|---|---|
| congenital anomaly of kidney and urinary tract | Limited | Autosomal dominant |
Mondo (2): congenital anomaly of kidney and urinary tract (MONDO:0019719), holoprosencephaly 2 (MONDO:0007999)
Orphanet (2): Renal or urinary tract malformation (Orphanet:93545), Holoprosencephaly (Orphanet:2162)
HPO phenotypes
22 total (22 of 22 shown, HPO-id order):
| HPO | Term |
|---|---|
| HP:0000077 | Abnormality of the kidney |
| HP:0000256 | Macrocephaly |
| HP:0000260 | Wide anterior fontanel |
| HP:0000316 | Hypertelorism |
| HP:0000348 | High forehead |
| HP:0000358 | Posteriorly rotated ears |
| HP:0000455 | Broad nasal tip |
| HP:0000508 | Ptosis |
| HP:0000537 | Epicanthus inversus |
| HP:0000820 | Abnormality of the thyroid gland |
| HP:0001263 | Global developmental delay |
| HP:0001511 | Intrauterine growth retardation |
| HP:0001518 | Small for gestational age |
| HP:0002007 | Frontal bossing |
| HP:0002693 | Abnormal skull base morphology |
| HP:0004322 | Short stature |
| HP:0005280 | Depressed nasal bridge |
| HP:0005453 | Absent/hypoplastic paranasal sinuses |
| HP:0005494 | Premature posterior fontanelle closure |
| HP:0009119 | Aplasia/Hypoplasia of the frontal sinuses |
| HP:0010291 | Prominent palatine ridges |
| HP:0011330 | Metopic synostosis |
GWAS associations
11 associations (top):
| Study | Trait | p-value |
|---|---|---|
| GCST001233_18 | Metabolite levels | 1.000000e-12 |
| GCST002586_5 | Fasting plasma glucose | 3.000000e-13 |
| GCST004748_80 | Lung cancer | 6.000000e-07 |
| GCST005145_2 | Glycated hemoglobin levels | 9.000000e-09 |
| GCST005913_1 | Fasting blood glucose | 2.000000e-08 |
| GCST006001_19 | Hemoglobin A1c levels | 4.000000e-17 |
| GCST006002_3 | Blood sugar levels | 7.000000e-46 |
| GCST009426_1 | Retinal arteriole-to-venule ratio | 7.000000e-07 |
| GCST009817_1 | Clozapine-induced myocarditis in schizophrenia | 4.000000e-07 |
| GCST010002_389 | Refractive error | 3.000000e-26 |
| GCST011587_2 | Fasting blood glucose | 7.000000e-25 |
EFO canonical traits (3, from GWAS)
| EFO ID | Trait name |
|---|---|
| EFO:0004541 | HbA1c measurement |
| EFO:0004468 | glucose measurement |
| EFO:0010554 | retinal vasculature measurement |
MeSH disease descriptors (2)
| Descriptor | Name | Tree numbers |
|---|---|---|
| C566906 | Cakut (supp.) | |
| C563579 | Holoprosencephaly 2 (supp.) |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (VIP=true, CPIC=false)
CTD chemical–gene interactions
24 total (human), top 24 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| Benzo(a)pyrene | increases methylation, affects methylation, increases expression | 3 |
| propionaldehyde | increases expression | 1 |
| sodium arsenite | decreases expression | 1 |
| vanadyl sulfate | decreases expression | 1 |
| pentanal | increases expression | 1 |
| NSC 689534 | decreases expression, affects binding | 1 |
| Arsenic Trioxide | decreases expression | 1 |
| Air Pollutants | decreases expression, increases abundance | 1 |
| Azacitidine | affects reaction, decreases expression | 1 |
| Cisplatin | affects reaction, decreases expression | 1 |
| Copper | affects binding, decreases expression | 1 |
| Diethylhexyl Phthalate | increases expression | 1 |
| Estradiol | decreases expression | 1 |
| Formaldehyde | decreases expression | 1 |
| Lead | affects expression | 1 |
| Silicon Dioxide | increases expression | 1 |
| Smoke | decreases expression | 1 |
| Testosterone | decreases expression | 1 |
| Tobacco Smoke Pollution | decreases expression | 1 |
| Tretinoin | increases expression | 1 |
| 1-Methyl-4-phenylpyridinium | increases expression | 1 |
| Antirheumatic Agents | increases expression | 1 |
| Okadaic Acid | increases expression | 1 |
| Particulate Matter | decreases expression, increases abundance | 1 |
Cellosaurus cell lines
3 cell lines: 3 embryonic stem cell
First 10 cell lines (id-ordered, not curated):
| Cellosaurus | Name | Category | Sex |
|---|---|---|---|
| CVCL_A6E8 | SEES3-1V human SIX2, clone1 | Embryonic stem cell | Male |
| CVCL_A6E9 | SEES3-1V human SIX2, clone2 | Embryonic stem cell | Male |
| CVCL_A6F0 | SEES3-1V human SIX2, clone3 | Embryonic stem cell | Male |
Clinical trials (associated diseases)
4 trials via MONDO — disease-level, not drug-specific.
| Trial | Phase | Status | Title |
|---|---|---|---|
| NCT04115345 | PHASE1 | COMPLETED | A Study of a Renal Autologous Cell Therapy (REACT) in Patients With Chronic Kidney Disease (CKD) From Congenital Anomalies of the Kidney and Urinary Tract (CAKUT). |
| NCT05694169 | PHASE1 | TERMINATED | A Study of Participants With Chronic Kidney Disease Previously Treated With REACT |
| NCT04537364 | Not specified | COMPLETED | Prediction of Renal Parenchymal Damage of CAKUT |
| NCT06921733 | Not specified | RECRUITING | Ultrasound Localization Microscopy in Patient With Congenital Anomalies of the Kidney and Urinary Tract (CAKUT) |
Related Atlas pages
- Associated diseases: congenital anomaly of kidney and urinary tract
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): congenital anomaly of kidney and urinary tract, holoprosencephaly 2, lung carcinoma, myocarditis