LETM2
gene geneOn this page
Also known as FLJ25409SLC55A2
Summary
LETM2 (leucine zipper and EF-hand containing transmembrane protein 2, HGNC:14648) is a protein-coding gene on chromosome 8p11.23, encoding LETM1 domain-containing protein LETM2, mitochondrial (Q2VYF4).
Predicted to enable transmembrane transporter activity. Predicted to be involved in mitochondrial calcium ion transmembrane transport and mitochondrion organization. Located in mitochondrion.
Source: NCBI Gene 137994 — automated summary from GO annotations (Alliance of Genome Resources).
At a glance
- GWAS associations: 12
- Clinical variants (ClinVar): 72 total
- GTEx eGene: eQTL in 7 tissues, sQTL in 2 (q < 0.05)
- Constraint (gnomAD): pLI 0.00 (LoF-tolerant), LOEUF 1.25 (unconstrained)
- MANE Select transcript:
NM_001286819 - Notable: 72 clinical variants but no curated precision-oncology (CIViC) evidence yet
Identifiers
Gene identifiers
| Field | Value |
|---|---|
| HGNC ID | HGNC:14648 |
| Approved symbol | LETM2 |
| Name | leucine zipper and EF-hand containing transmembrane protein 2 |
| Location | 8p11.23 |
| Locus type | gene with protein product |
| Status | Approved |
| Aliases | FLJ25409, SLC55A2 |
| Ensembl gene | ENSG00000165046 |
| Ensembl biotype | protein_coding |
| OMIM | 620380 |
| Entrez | 137994 |
Gene structure
Transcript identifiers
Ensembl transcripts: 18 — 12 protein_coding, 3 retained_intron, 2 nonsense_mediated_decay, 1 protein_coding_CDS_not_defined
MANE Select: ENST00000379957
Transcript support level (Ensembl TSL; 1 = fully mRNA-supported): TSL 1: 4, TSL 2: 5, TSL 3: 2, TSL 4: 2, TSL 5: 2
ENST00000379957, ENST00000297720, ENST00000518121, ENST00000518883, ENST00000519476, ENST00000523268, ENST00000523983, ENST00000524874, ENST00000526075, ENST00000526356, ENST00000527175, ENST00000527334, ENST00000527710, ENST00000528827, ENST00000530448, ENST00000889546, ENST00000948387, ENST00001138829
RefSeq mRNA: 9 — MANE Select: NM_001286819
NM_001199659, NM_001199660, NM_001286787, NM_001286819, NM_001286821, NM_001330515, NM_001363204, NM_001363205, NM_144652
CCDS: CCDS56534, CCDS6106, CCDS69466, CCDS75731, CCDS83282
Canonical transcript exons
ENST00000379957 — 11 exons
| Exon | Start | End |
|---|---|---|
| ENSE00001527473 | 38394098 | 38394241 |
| ENSE00001806127 | 38392542 | 38392995 |
| ENSE00002122767 | 38386476 | 38386568 |
| ENSE00003526354 | 38400272 | 38400409 |
| ENSE00003526982 | 38400853 | 38401053 |
| ENSE00003528064 | 38402525 | 38402644 |
| ENSE00003536187 | 38407362 | 38407463 |
| ENSE00003542896 | 38404393 | 38404506 |
| ENSE00003589066 | 38406946 | 38407038 |
| ENSE00003661105 | 38387950 | 38388030 |
| ENSE00004793610 | 38408212 | 38409527 |
Expression profiles
Bgee: expression breadth ubiquitous, 173 present calls, max score 90.16.
FANTOM5 (CAGE): breadth ubiquitous, TPM avg 8.7601 / max 249.4772, expressed in 1515 samples.
Highest expression (Bgee): testis, cerebellar hemisphere, cerebellar cortex, hemisphere of cerebellum, cerebellum.
Genetic regulation across tissues (GTEx eQTL / sQTL)
LETM2 is an eGene in GTEx v10 — its expression is genetically regulated (eQTL) in 7 tissues and its splicing (sQTL) in 2 (q < 0.05). Strongest associations first; slope = normalized effect of the lead variant’s alternative allele.
9 significant tissue × QTL associations:
| Tissue | QTL | q-value | Slope | Lead variant |
|---|---|---|---|---|
| Testis | sqtl | 2.9e-04 | +1.75 | 8:38534635:C:T |
| Adrenal Gland | eqtl | 1.1e-03 | +0.27 | 8:38402922:C:T |
| Muscle Skeletal | eqtl | 2.9e-03 | -0.76 | 8:38767915:A:T |
| Heart Left Ventricle | eqtl | 4.7e-03 | -0.20 | 8:38923522:C:A |
| Esophagus Mucosa | sqtl | 5.1e-03 | +1.14 | 8:37693368:C:G |
| Cells Cultured fibroblasts | eqtl | 1.4e-02 | +0.09 | 8:38730795:G:A |
| Thyroid | eqtl | 1.9e-02 | -0.72 | 8:38114140:C:T |
| Small Intestine Terminal Ileum | eqtl | 4.4e-02 | -0.75 | 8:38545547:G:A |
| Cells EBV-transformed lymphocytes | eqtl | 4.8e-02 | +1.02 | 8:38424971:T:G |
FANTOM5 promoters
showing 10 of 11 alternative TSS:
| Promoter ID | TPM avg | Samples expressed |
|---|---|---|
| 88490 | 4.5793 | 1280 |
| 88495 | 1.5223 | 414 |
| 88497 | 1.0469 | 312 |
| 88493 | 0.4509 | 198 |
| 88496 | 0.2946 | 112 |
| 88494 | 0.2878 | 129 |
| 88486 | 0.2632 | 95 |
| 88489 | 0.1522 | 53 |
| 88488 | 0.0929 | 39 |
| 88487 | 0.0484 | 24 |
Top tissues by expression
showing 100 of 239 tissues by Bgee expression score (0-100, higher = more expressed):
| Tissue | Anatomy ID | Expression score | Quality |
|---|---|---|---|
| left testis | UBERON:0004533 | 90.16 | gold quality |
| right testis | UBERON:0004534 | 89.49 | gold quality |
| cerebellar hemisphere | UBERON:0002245 | 89.26 | gold quality |
| cerebellar cortex | UBERON:0002129 | 89.02 | gold quality |
| right hemisphere of cerebellum | UBERON:0014890 | 88.85 | gold quality |
| testis | UBERON:0000473 | 87.59 | gold quality |
| cerebellum | UBERON:0002037 | 86.66 | gold quality |
| secondary oocyte | CL:0000655 | 80.90 | gold quality |
| islet of Langerhans | UBERON:0000006 | 78.05 | gold quality |
| descending thoracic aorta | UBERON:0002345 | 77.30 | gold quality |
| adenohypophysis | UBERON:0002196 | 76.01 | gold quality |
| stromal cell of endometrium | CL:0002255 | 75.94 | gold quality |
| cortical plate | UBERON:0005343 | 75.87 | gold quality |
| oocyte | CL:0000023 | 75.78 | gold quality |
| male germ line stem cell (sensu Vertebrata) in testis | CL:0000089 ∩ UBERON:0000473 | 75.70 | gold quality |
| right coronary artery | UBERON:0001625 | 75.62 | gold quality |
| left uterine tube | UBERON:0001303 | 75.61 | gold quality |
| anterior cingulate cortex | UBERON:0009835 | 75.54 | gold quality |
| leukocyte | CL:0000738 | 75.41 | gold quality |
| body of pancreas | UBERON:0001150 | 75.39 | gold quality |
| omental fat pad | UBERON:0010414 | 75.24 | gold quality |
| right frontal lobe | UBERON:0002810 | 75.17 | gold quality |
| peritoneum | UBERON:0002358 | 75.15 | gold quality |
| granulocyte | CL:0000094 | 75.13 | gold quality |
| pancreas | UBERON:0001264 | 75.00 | gold quality |
| monocyte | CL:0000576 | 74.98 | gold quality |
| thoracic aorta | UBERON:0001515 | 74.77 | gold quality |
| ascending aorta | UBERON:0001496 | 74.72 | gold quality |
| Brodmann (1909) area 9 | UBERON:0013540 | 74.39 | gold quality |
| lower esophagus muscularis layer | UBERON:0035833 | 74.26 | gold quality |
| lower esophagus | UBERON:0013473 | 74.18 | gold quality |
| pituitary gland | UBERON:0000007 | 74.17 | gold quality |
| prefrontal cortex | UBERON:0000451 | 73.95 | gold quality |
| aorta | UBERON:0000947 | 73.94 | gold quality |
| hypothalamus | UBERON:0001898 | 73.90 | gold quality |
| popliteal artery | UBERON:0002250 | 73.66 | gold quality |
| tibial artery | UBERON:0007610 | 73.66 | gold quality |
| metanephros cortex | UBERON:0010533 | 73.63 | gold quality |
| amniotic fluid | UBERON:0000173 | 73.49 | gold quality |
| adipose tissue of abdominal region | UBERON:0007808 | 73.35 | gold quality |
| esophagogastric junction muscularis propria | UBERON:0035841 | 73.25 | gold quality |
| olfactory segment of nasal mucosa | UBERON:0005386 | 73.18 | gold quality |
| calcaneal tendon | UBERON:0003701 | 73.14 | gold quality |
| sperm | CL:0000019 | 72.84 | gold quality |
| muscle layer of sigmoid colon | UBERON:0035805 | 72.49 | gold quality |
| ventricular zone | UBERON:0003053 | 72.18 | gold quality |
| ganglionic eminence | UBERON:0004023 | 72.17 | gold quality |
| bone marrow cell | CL:0002092 | 72.09 | gold quality |
| left coronary artery | UBERON:0001626 | 72.09 | gold quality |
| mucosa of stomach | UBERON:0001199 | 72.01 | gold quality |
| C1 segment of cervical spinal cord | UBERON:0006469 | 71.88 | gold quality |
| ectocervix | UBERON:0012249 | 71.87 | gold quality |
| left ovary | UBERON:0002119 | 71.62 | gold quality |
| blood | UBERON:0000178 | 71.60 | gold quality |
| right atrium auricular region | UBERON:0006631 | 71.56 | gold quality |
| nucleus accumbens | UBERON:0001882 | 71.51 | gold quality |
| amygdala | UBERON:0001876 | 71.33 | gold quality |
| right ovary | UBERON:0002118 | 71.27 | gold quality |
| endocervix | UBERON:0000458 | 71.20 | gold quality |
| caudate nucleus | UBERON:0001873 | 70.98 | gold quality |
| tendon | UBERON:0000043 | 70.81 | gold quality |
| cardiac atrium | UBERON:0002081 | 70.76 | gold quality |
| coronary artery | UBERON:0001621 | 70.65 | gold quality |
| putamen | UBERON:0001874 | 70.57 | gold quality |
| esophagus | UBERON:0001043 | 70.53 | gold quality |
| dorsolateral prefrontal cortex | UBERON:0009834 | 70.48 | gold quality |
| right uterine tube | UBERON:0001302 | 70.38 | gold quality |
| gall bladder | UBERON:0002110 | 70.17 | gold quality |
| upper lobe of left lung | UBERON:0008952 | 70.16 | gold quality |
| neocortex | UBERON:0001950 | 70.15 | gold quality |
| body of uterus | UBERON:0009853 | 69.83 | gold quality |
| brain | UBERON:0000955 | 69.50 | gold quality |
| ovary | UBERON:0000992 | 69.43 | gold quality |
| heart left ventricle | UBERON:0002084 | 69.35 | gold quality |
| adrenal tissue | UBERON:0018303 | 69.10 | gold quality |
| spinal cord | UBERON:0002240 | 69.01 | gold quality |
| frontal cortex | UBERON:0001870 | 68.93 | gold quality |
| body of stomach | UBERON:0001161 | 68.85 | gold quality |
| upper lobe of lung | UBERON:0008948 | 68.80 | gold quality |
| apex of heart | UBERON:0002098 | 68.63 | gold quality |
| heart | UBERON:0000948 | 68.47 | gold quality |
| right lung | UBERON:0002167 | 68.45 | gold quality |
| smooth muscle tissue | UBERON:0001135 | 68.42 | gold quality |
| cardiac ventricle | UBERON:0002082 | 68.37 | gold quality |
| adult mammalian kidney | UBERON:0000082 | 68.18 | gold quality |
| forebrain | UBERON:0001890 | 67.87 | gold quality |
| tibial nerve | UBERON:0001323 | 67.85 | gold quality |
| buccal mucosa cell | CL:0002336 | 67.64 | silver quality |
| esophagus mucosa | UBERON:0002469 | 67.58 | gold quality |
| vagina | UBERON:0000996 | 67.34 | gold quality |
| cortex of kidney | UBERON:0001225 | 67.29 | gold quality |
| tendon of biceps brachii | UBERON:0008188 | 67.14 | gold quality |
| stomach | UBERON:0000945 | 66.98 | gold quality |
| cerebral cortex | UBERON:0000956 | 66.97 | gold quality |
| anatomical system | UBERON:0000467 | 66.87 | gold quality |
| lower esophagus mucosa | UBERON:0035834 | 66.76 | gold quality |
| uterine cervix | UBERON:0000002 | 66.68 | gold quality |
| transverse colon | UBERON:0001157 | 66.52 | gold quality |
| material anatomical entity | UBERON:0000465 | 66.40 | gold quality |
| multicellular organism | UBERON:0000468 | 66.39 | gold quality |
Single-cell (SCXA)
Detected in 1 experiment(s), a significant marker in 1.
| Experiment | Marker? | Max mean expression |
|---|---|---|
| E-ANND-3 | no | 0.00 |
HPA expression
RNA tissue specificity: Tissue enhanced
showing 60 of 76 HPA tissues / cells by nTPM:
| Tissue / cell | Axis | nTPM | Protein (IHC) |
|---|---|---|---|
| Cerebellum | tissue | 32.2 | not detected |
| Testis | tissue | 22.2 | high |
| Postcentral gyrus | tissue | 11.9 | |
| Choroid plexus | tissue | 10.6 | |
| Nucleus accumbens | tissue | 10.2 | |
| Locus coeruleus | tissue | 9.9 | |
| Hippocampus | tissue | 8.1 | not detected |
| Hippocampal formation | tissue | 5.7 | |
| Pons | tissue | 5.2 | |
| Bone marrow | tissue | 5.0 | not detected |
| Periaqueductal gray | tissue | 4.8 | |
| Spinal cord | tissue | 4.7 | |
| Hypothalamus | tissue | 4.6 | |
| Amygdala | tissue | 4.5 | |
| Frontal cortex | tissue | 4.4 | |
| Medulla oblongata | tissue | 4.4 | |
| Caudate putamen | tissue | 4.4 | |
| Midbrain | tissue | 4.2 | |
| Corpus callosum | tissue | 4.1 | |
| Septum | tissue | 4.0 | |
| Retina | tissue | 3.9 | |
| Substantia nigra | tissue | 3.9 | |
| Basal ganglia | tissue | 3.7 | not detected |
| Superior colliculi | tissue | 3.7 | |
| Thalamus | tissue | 3.6 | |
| Ventral forebrain | tissue | 3.5 | |
| Cerebral cortex | tissue | 3.2 | not detected |
| Olfactory bulb | tissue | 3.2 | |
| Insular cortex | tissue | 3.2 | |
| Entorhinal cortex | tissue | 3.1 | |
| Retrosplenial cortex | tissue | 3.1 | |
| Putamen | tissue | 3.0 | |
| Prefrontal cortex | tissue | 2.9 | |
| Motor cortex | tissue | 2.9 | |
| Temporal cortex | tissue | 2.9 | |
| Retrosplenial and cingulate cortex | tissue | 2.8 | |
| Stomach 1 | tissue | 2.5 | medium |
| Somatosensory cortex | tissue | 2.5 | |
| Occipital cortex | tissue | 2.4 | |
| Kidney | tissue | 2.2 | not detected |
| Thymus | tissue | 2.2 | |
| Pituitary gland | tissue | 2.1 | |
| Lung | tissue | 1.9 | not detected |
| Urinary bladder | tissue | 1.8 | not detected |
| Placenta | tissue | 1.7 | medium |
| Cervix | tissue | 1.5 | low |
| Ovary | tissue | 1.5 | low |
| Parathyroid gland | tissue | 1.5 | not detected |
| Spleen | tissue | 1.5 | not detected |
| Endometrium 1 | tissue | 1.3 | medium |
| Tonsil | tissue | 1.3 | medium |
| Fallopian tube | tissue | 1.3 | medium |
| Lymph node | tissue | 1.2 | not detected |
| Esophagus | tissue | 1.1 | not detected |
| Gallbladder | tissue | 1.1 | medium |
| Skin 1 | tissue | 1.0 | not detected |
| Epididymis | tissue | 1.0 | medium |
| Prostate | tissue | 1.0 | |
| Adrenal gland | tissue | 1.0 | not detected |
| Appendix | tissue | 1.0 | medium |
Brain sub-regions (HPA Brain Atlas): detected in 191; highest nTPM — Flocculonodular lobe (16.0), Vermis (14.5), Cerebellar cortex (14.3), Parieto-temporal junction (white matter) (13.1), Corpus callosum, splenium (white matter) (13.0).
Regulation
Is transcription factor: no
miRNA regulators (miRDB)
Targeting LETM2 by miRDB confidence (max_score; target_count = how many genes the miRNA targets in total — lower means more specific).
showing 30 of 46 miRNAs:
| miRNA | Max score | Avg score | miRNA target_count |
|---|---|---|---|
| HSA-MIR-126-5P | 100.00 | 72.71 | 3180 |
| HSA-MIR-200B-3P | 100.00 | 73.31 | 2693 |
| HSA-MIR-200C-3P | 100.00 | 73.35 | 2685 |
| HSA-MIR-429 | 100.00 | 73.44 | 2698 |
| 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-4795-3P | 100.00 | 74.62 | 4024 |
| HSA-MIR-4534 | 99.99 | 66.58 | 1907 |
| HSA-MIR-19A-3P | 99.98 | 75.33 | 2762 |
| HSA-MIR-19B-3P | 99.98 | 75.44 | 2754 |
| HSA-MIR-8082 | 99.95 | 67.27 | 1170 |
| HSA-MIR-4648 | 99.91 | 67.00 | 710 |
| HSA-MIR-6739-5P | 99.80 | 67.87 | 2806 |
| HSA-MIR-6733-5P | 99.74 | 67.94 | 2759 |
| HSA-MIR-4719 | 99.73 | 72.10 | 3329 |
| HSA-MIR-4643 | 99.49 | 67.63 | 1791 |
| HSA-MIR-203A-3P | 99.49 | 70.56 | 2806 |
| HSA-MIR-6081 | 99.48 | 66.07 | 1446 |
| HSA-MIR-1324 | 99.46 | 66.57 | 1302 |
| HSA-MIR-516A-3P | 99.46 | 67.96 | 1378 |
| HSA-MIR-516B-3P | 99.46 | 67.96 | 1378 |
| HSA-MIR-7162-5P | 99.46 | 68.08 | 1368 |
| HSA-MIR-4735-5P | 99.43 | 68.49 | 1780 |
| HSA-MIR-940 | 99.37 | 66.14 | 2064 |
| HSA-MIR-6808-5P | 99.31 | 66.23 | 2150 |
| HSA-MIR-6893-5P | 99.31 | 66.25 | 2119 |
| HSA-MIR-5584-3P | 99.23 | 68.79 | 1351 |
| HSA-MIR-140-3P | 99.04 | 67.69 | 1324 |
Functional genomics
gnomAD constraint: pLI 7e-12, LOEUF 1.25, missense Z 0.316 — population loss-of-function intolerance (pLI ≥ 0.9 = LoF-intolerant; lower LOEUF = more constrained). gnomAD
Regional missense constraint (gnomAD RMC): no regional variation along ENST00000379957 — one region, missense o/e 0.99.
Cross-species orthologs
3 orthologs
| Organism | Symbol | Gene ID |
|---|---|---|
| danio_rerio | letm2 | ENSDARG00000077515 |
| mus_musculus | Letm2 | ENSMUSG00000037363 |
| rattus_norvegicus | Letm2 | ENSRNOG00000026180 |
Paralogs (2): LETMD1 (ENSG00000050426), LETM1 (ENSG00000168924)
Additional cross-species homologs
Sequence homologs in species beyond Ensembl Compara’s model organisms, by Diamond local protein alignment (% sequence identity; best hit per species). Lower-identity rows are more distant homologs. The matched accessions’ gene symbols aren’t in biobtree yet, so each row shows the UniProt accession.
| Organism | UniProt | Identity | Method |
|---|---|---|---|
| Bos taurus | Q0VCA3 | 79.2% | Diamond |
| Gallus gallus | Q5ZK33 | 72.3% | Diamond |
| Xenopus tropicalis | Q0VA06 | 71.8% | Diamond |
| Saccharomyces cerevisiae S288C | Q06493 | 50.3% | Diamond |
| Drosophila melanogaster | P91927 | 50.0% | Diamond |
| Schizosaccharomyces pombe 972h- | O13920 | 47.5% | Diamond |
Genomic neighbors (locus context)
Genes flanking this one on the chromosome (NCBI/Entrez gene neighborhood). Positional context only — some neighbors share regulatory elements (bidirectional promoters, antisense/overlapping transcripts), but chromosomal adjacency is not itself a functional relationship (see Interactions for that).
| Symbol | Type | Entrez |
|---|---|---|
| FGFR1 | protein-coding | 2260 |
| DDHD2 | protein-coding | 23259 |
| LINC03042 | ncRNA | 389649 |
| NSD3 | protein-coding | 54904 |
| PLPP5 | protein-coding | 84513 |
| BAG4 | protein-coding | 9530 |
| LSM1 | protein-coding | 27257 |
Protein
Protein identifiers
LETM1 domain-containing protein LETM2, mitochondrial — Q2VYF4 (reviewed: Q2VYF4)
Alternative names: LETM1 and EF-hand domain-containing protein 2, Leucine zipper-EF-hand-containing transmembrane protein 1-like
All UniProt accessions (8): Q2VYF4, A8K1M9, E5RJN4, E5RK40, E9PIC7, E9PMA4, E9PN52, H0YCZ8
UniProt curated annotations — full annotation on UniProt →
Subcellular location. Mitochondrion inner membrane.
Isoforms (4)
| UniProt ID | Names | Canonical? |
|---|---|---|
| Q2VYF4-1 | 1 | yes |
| Q2VYF4-2 | 2 | |
| Q2VYF4-3 | 3 | |
| Q2VYF4-4 | 4 |
RefSeq proteins (9): NP_001186588, NP_001186589, NP_001273716, NP_001273748, NP_001273750, NP_001317444, NP_001350133, NP_001350134, NP_653253 (=MANE)
Domains & families (InterPro)
| ID | Name | Type |
|---|---|---|
| IPR033122 | LETM1-like_RBD | Domain |
| IPR044202 | LETM1/MDM38-like | Family |
| IPR045742 | LETM2_N | Domain |
Pfam: PF07766, PF19324
UniProt features (17 total): splice variant 4, compositionally biased region 3, topological domain 2, region of interest 2, transit peptide 1, chain 1, sequence conflict 1, transmembrane region 1, domain 1, coiled-coil region 1
Structure
Predicted structure (AlphaFold)
| Model | pLDDT | Fraction very-high |
|---|---|---|
| AF-Q2VYF4-F1 | 62.77 | 0.15 |
Human Protein Atlas
Protein class: Transporters, Electrochemical Potential-driven transporters, Predicted membrane proteins, Predicted intracellular proteins, UniProt - Evidence at transcript level
Protein evidence: Evidence at protein level
Subcellular location (HPA, imaging): nucleoplasm; cytosol; nuclear bodies
Antibody reliability (HPA): IH approved · IF approved
Function
Pathways and Gene Ontology
Reactome pathways
0 curated (TAS) of 0; 0 disease pathways. Curated-first; evidence = TAS (manually curated) vs IEA (electronic inference).
MSigDB gene sets: 106 (showing top):
GSE45365_NK_CELL_VS_CD8_TCELL_UP, SHEPARD_BMYB_MORPHOLINO_UP, CREBP1_Q2, GOBP_MONOATOMIC_CATION_TRANSPORT, CREB_Q4, E4F1_Q6, GOCC_MITOCHONDRIAL_ENVELOPE, AACTTT_UNKNOWN, SENESE_HDAC1_TARGETS_UP, GOBP_CALCIUM_ION_TRANSMEMBRANE_TRANSPORT, GOBP_TRANSMEMBRANE_TRANSPORT, GOCC_ORGANELLE_INNER_MEMBRANE, MARSON_BOUND_BY_FOXP3_STIMULATED, YATGNWAAT_OCT_C, GOMF_RIBONUCLEOPROTEIN_COMPLEX_BINDING
GO Biological Process (2): mitochondrial calcium ion transmembrane transport (GO:0006851), mitochondrion organization (GO:0007005)
GO Molecular Function (2): transmembrane transporter activity (GO:0022857), ribosome binding (GO:0043022)
GO Cellular Component (2): mitochondrion (GO:0005739), mitochondrial inner membrane (GO:0005743)
GO top-level categories
9 GO namespaces:
| Category | Terms |
|---|---|
| calcium ion transmembrane transport | 1 |
| organelle organization | 1 |
| transporter activity | 1 |
| transmembrane transport | 1 |
| ribonucleoprotein complex binding | 1 |
| cytoplasm | 1 |
| intracellular membrane-bounded organelle | 1 |
| organelle inner membrane | 1 |
| mitochondrial membrane | 1 |
Experimentally-supported GO annotations
GO terms backed by direct experimental evidence (ECO experimental codes) — 1 of 6 annotations. The rest are phylogenetic / computational / electronic (IEA).
1 experimentally-supported GO terms:
| GO term | NS | Evidence |
|---|---|---|
| mitochondrion | CC | high-throughput |
Protein interactions and networks
STRING
showing 15 of 891 interactions by confidence (×1000):
| Protein A | Protein B | Partner UniProt | Score |
|---|---|---|---|
| LETM2 | GOT1L1 | Q8NHS2 | 615 |
| LETM2 | RAB11FIP1 | Q6WKZ4 | 573 |
| LETM2 | BRF2 | Q9HAW0 | 544 |
| LETM2 | NSD3 | Q9BZ95 | 507 |
| LETM2 | DDHD2 | O94830 | 502 |
| LETM2 | PLPP5 | Q8NEB5 | 470 |
| LETM2 | SIRAL2 | Q9NWS6 | 469 |
| LETM2 | RHBDD3 | Q9Y3P4 | 460 |
| LETM2 | EIF4EBP1 | Q13541 | 459 |
| LETM2 | DNAJC18 | Q9H819 | 458 |
| LETM2 | PLPBP | O94903 | 453 |
| LETM2 | TTC39C | Q8N584 | 438 |
| LETM2 | REEP6 | Q96HR9 | 437 |
| LETM2 | TMEM39B | Q9GZU3 | 436 |
| LETM2 | MICU1 | Q9BPX6 | 432 |
IntAct
Human interaction partners of LETM2 in IntAct, one row per partner (best MIscore; records = supporting IntAct interaction records).
3 partners by confidence:
| Partner | Interaction type | MIscore | Records |
|---|---|---|---|
| EIF3CL | association | 0.350 | 1 |
| GAPDHS | association | 0.350 | 1 |
| LETM1 | association | 0.350 | 1 |
BioGRID (78 interactions; top human partners by supporting records): AHNAK (Affinity Capture-MS), AK4 (Affinity Capture-MS), AMOT (Affinity Capture-MS), AP2A2 (Affinity Capture-MS), APMAP (Affinity Capture-MS), APP (Reconstituted Complex), ARL6IP5 (Affinity Capture-MS), ARPC4 (Affinity Capture-MS), ASAH1 (Affinity Capture-MS), BCS1L (Affinity Capture-MS), BRD2 (Affinity Capture-MS), BRD3 (Affinity Capture-MS), BRD4 (Affinity Capture-MS), C14orf1 (Affinity Capture-MS), C17orf49 (Affinity Capture-MS)
Disease & clinical
Genetic variants
Variant evidence for LETM2: 72 ClinVar records (0 pathogenic / likely pathogenic); 12 GWAS associations.
ClinVar
72 variants total. Per-class counts are floors (≥ shown; pagination cap):
| Classification | Count (floor) |
|---|---|
| Pathogenic | 0 |
| Likely pathogenic | 0 |
| Uncertain significance | 61 |
| Likely benign | 2 |
| Benign | 1 |
SpliceAI
Top 10 splice-impact sites by Δscore (adjacent positions with the same effect merged into one range; 27 predictions of 1,137):
| Position(s) | Effect | Δscore | Sites |
|---|---|---|---|
| 8:38402523 | acceptor_loss | 1.0000 | 2 |
| 8:38402645 | donor_loss | 1.0000 | 3 |
| 8:38404383 | acceptor_gain | 1.0000 | |
| 8:38404391–38404392 | acceptor_loss | 1.0000 | 6 |
| 8:38404507–38404508 | donor_loss | 1.0000 | 2 |
| 8:38405405 | donor_gain | 1.0000 | |
| 8:38406944–38406945 | acceptor_loss | 1.0000 | 5 |
| 8:38407039–38407040 | donor_loss | 1.0000 | 5 |
| 8:38394129 | acceptor_gain | 0.9900 | |
| 8:38400846 | acceptor_gain | 0.9900 |
AlphaMissense
500 missense substitutions predicted likely pathogenic (of 3,191 scored), across 171 residues. Top 20 hotspot residues, ranked by the number of likely-pathogenic substitutions (of those reachable by a single-nucleotide change), then by mean score:
| Residue | Likely-pathogenic substitutions | Mean am_pathogenicity | Max am_pathogenicity |
|---|---|---|---|
| D327 | 8 | 0.950 | 0.985 |
| D174 | 8 | 0.872 | 0.942 |
| F209 | 8 | 0.846 | 0.974 |
| F280 | 8 | 0.837 | 0.951 |
| D143 | 8 | 0.785 | 0.903 |
| W369 | 7 | 0.967 | 0.994 |
| F232 | 7 | 0.867 | 0.977 |
| M352 | 7 | 0.861 | 0.980 |
| F184 | 7 | 0.830 | 0.930 |
| D326 | 7 | 0.826 | 0.924 |
| F201 | 7 | 0.825 | 0.935 |
| E342 | 7 | 0.749 | 0.895 |
| E191 | 7 | 0.744 | 0.871 |
| G351 | 6 | 0.897 | 0.962 |
| P206 | 6 | 0.826 | 0.943 |
| P188 | 6 | 0.821 | 0.919 |
| R162 | 6 | 0.819 | 0.914 |
| F314 | 6 | 0.811 | 0.928 |
| P180 | 6 | 0.798 | 0.934 |
| E164 | 6 | 0.782 | 0.922 |
HPA cancer prognostics
RNA cancer specificity: Low cancer specificity
Human Protein Atlas survival analysis — favorable = higher expression predicts better survival.
3 prognostic cancer types:
| Cancer | Prognostic | p-value |
|---|---|---|
| Lung Adenocarcinoma (TCGA) | unfavorable | 2.21e-05 |
| Glioblastoma Multiforme (TCGA) | unfavorable | 7.45e-05 |
| Pancreatic Adenocarcinoma (TCGA) | unfavorable | 7.97e-05 |
Disease associations
OMIM: gene MIM:620380 | disease phenotypes:
GWAS associations
12 associations:
| Study | Trait | p-value |
|---|---|---|
| GCST90000025_909 | Appendicular lean mass | 1e-21 |
| GCST90002387_200 | Immature fraction of reticulocytes | 8e-15 |
| GCST90002388_529 | Lymphocyte count | 8e-15 |
| GCST007201_191 | Schizophrenia | 1e-12 |
| GCST004946_26 | Schizophrenia | 1e-11 |
| GCST007269_99 | Pulse pressure | 2e-11 |
| GCST006803_57 | Schizophrenia | 6e-10 |
| GCST009600_105 | Anorexia nervosa, attention-deficit/hyperactivity disorder, autism spectrum disorder, bipolar disorder, major depression, obsessive-compulsive disorder, schizophrenia, or Tourette syndrome (pleiotropy) | 2e-9 |
| GCST004521_143 | Autism spectrum disorder or schizophrenia | 4e-9 |
| GCST007201_258 | Schizophrenia | 1e-6 |
| GCST003469_12 | Response to cognitive-behavioural therapy in anxiety disorder | 4e-6 |
| GCST008103_157 | Bipolar disorder | 7e-6 |
EFO canonical traits (from GWAS)
4 canonical traits:
| EFO ID | Trait name |
|---|---|
| EFO:0007820 | cognitive behavioural therapy |
| EFO:0005763 | pulse pressure measurement |
| EFO:0004980 | appendicular lean mass |
| EFO:0004587 | lymphocyte count |
Drugs & pharmacology
Drug and pharmacology data
Is drug target: no
PharmGKB: 1 entry (CPIC guideline: no)
GtoPdb / IUPHAR curated pharmacology
(IUPHAR/BPS Guide to Pharmacology — expert-curated)
Target class: transporter — SLC55 Mitochondrial cation/proton exchangers
CTD chemical–gene interactions
34 total (human), top 30 by PubMed support.
| Chemical | Actions (top 5) | PubMed papers |
|---|---|---|
| (+)-JQ1 compound | decreases expression, increases expression | 2 |
| Benzo(a)pyrene | increases expression | 2 |
| Smoke | decreases expression, increases expression | 2 |
| Cyclosporine | increases expression | 2 |
| aristolochic acid I | increases expression | 1 |
| triphenyl phosphate | affects expression | 1 |
| bisphenol A | affects cotreatment, increases methylation | 1 |
| 2-methyl-4-isothiazolin-3-one | increases expression | 1 |
| beta-lapachone | increases expression | 1 |
| tris(1,3-dichloro-2-propyl)phosphate | increases expression | 1 |
| butyraldehyde | increases expression | 1 |
| potassium chromate(VI) | decreases expression | 1 |
| pentanal | increases expression | 1 |
| di-n-butylphosphoric acid | affects expression | 1 |
| perfluorooctane sulfonic acid | increases expression | 1 |
| monomethylarsonous acid | increases expression | 1 |
| abrine | increases expression | 1 |
| Fulvestrant | affects cotreatment, increases methylation | 1 |
| Leflunomide | increases expression | 1 |
| Acetaminophen | decreases expression | 1 |
| Air Pollutants | increases abundance, decreases expression | 1 |
| Vehicle Emissions | decreases expression, increases abundance | 1 |
| Dichlorodiphenyl Dichloroethylene | increases expression | 1 |
| Diethylhexyl Phthalate | decreases expression | 1 |
| Quercetin | increases expression | 1 |
| Silicon Dioxide | increases expression | 1 |
| Theophylline | decreases expression | 1 |
| Tobacco Smoke Pollution | increases expression | 1 |
| Vanadates | increases expression | 1 |
| Aflatoxin B1 | increases expression | 1 |
Cellosaurus cell lines
2 cell lines: 2 cancer cell line
First 10 cell lines (id-ordered, not curated):
| Cellosaurus | Name | Category | Sex |
|---|---|---|---|
| CVCL_D4G1 | HCT116-LETM2-KO-c11 | Cancer cell line | Male |
| CVCL_D4G2 | HCT116-LETM2-KO-c2 | Cancer cell line | Male |
Clinical trials (associated diseases)
Via MONDO — disease-level, not drug-specific.
Related Atlas pages
- Disease cohort memberships (association, not causation — diseases whose associated-gene cohort lists this gene; a subset are also under Associated diseases): anorexia nervosa, obsessive-compulsive disorder