Gene Gene information from NCBI Gene database.
Entrez ID 4948
Gene name OCA2 melanosomal transmembrane protein
Gene symbol OCA2
Synonyms (NCBI Gene)
BEYBEY1BEY2BOCAD15S12EYCLEYCL2EYCL3HCL3PPEDSHEP1SLC13B1
Chromosome 15
Chromosome location 15q12-q13.1
Summary This gene encodes the human homolog of the mouse p (pink-eyed dilution) gene. The encoded protein is believed to be an integral membrane protein involved in small molecule transport, specifically tyrosine, which is a precursor to melanin synthesis. It is
SNPs SNP information provided by dbSNP.
67
SNP ID Visualize variation Clinical significance Consequence
rs1800401 G>A Affects, likely-benign, benign Missense variant, non coding transcript variant, coding sequence variant
rs1800407 C>T Affects, likely-benign, benign Missense variant, non coding transcript variant, coding sequence variant
rs1800408 C>G Conflicting-interpretations-of-pathogenicity, uncertain-significance Missense variant, non coding transcript variant, coding sequence variant
rs61738394 C>G,T Likely-pathogenic, conflicting-interpretations-of-pathogenicity Non coding transcript variant, coding sequence variant, missense variant, genic upstream transcript variant, upstream transcript variant
rs74653330 C>T Likely-benign, conflicting-interpretations-of-pathogenicity, benign Non coding transcript variant, missense variant, coding sequence variant
miRNA miRNA information provided by mirtarbase database.
50
miRTarBase ID miRNA Experiments Reference
MIRT022272 hsa-miR-124-3p Microarray 18668037
MIRT047322 hsa-miR-181a-5p CLASH 23622248
MIRT446417 hsa-miR-6783-5p PAR-CLIP 22100165
MIRT446416 hsa-miR-1249-5p PAR-CLIP 22100165
MIRT446415 hsa-miR-6797-5p PAR-CLIP 22100165
Transcription factors Transcription factors information provided by TRRUST V2 database.
3
Transcription factor Regulation Reference
HLTF Activation 22234890
LEF1 Activation 22234890
MITF Activation 22234890
Gene ontology (GO) Gene Ontology (GO) annotations describing the biological processes, molecular functions, and cellular components associated with a gene.
21
GO ID Ontology Definition Evidence Reference
GO:0005254 Function Chloride channel activity IDA 25513726
GO:0005515 Function Protein binding IPI 19116314
GO:0005765 Component Lysosomal membrane IDA 19116314
GO:0005789 Component Endoplasmic reticulum membrane IDA 19116314
GO:0006583 Process Melanin biosynthetic process from tyrosine IDA 25513726, 32966160
Other IDs Other IDs provides unique identifiers for this gene in OMIM, HGNC, and Ensembl databases.
MIM HGNC e!Ensembl
611409 8101 ENSG00000104044
Protein Protein information from UniProt database.
UniProt ID Unique identifier for the protein in the UniProt database. Click to view detailed protein information.
Q04671
Protein name P protein (Melanocyte-specific transporter protein) (Pink-eyed dilution protein homolog)
Protein function Contributes to a melanosome-specific anion (chloride) current that modulates melanosomal pH for optimal tyrosinase activity required for melanogenesis and the melanosome maturation (PubMed:11310796, PubMed:15262401, PubMed:22234890, PubMed:25513
Family and domains

Pfam

Accession ID Position in sequence Description Type
PF03600 CitMHS 342 775 Citrate transporter Family
Tissue specificity TISSUE SPECIFICITY: Expressed in melanocytes and retinal pigment epithelium. {ECO:0000269|PubMed:25513726, ECO:0000269|PubMed:32966160}.
Sequence
MHLEGRDGRRYPGAPAVELLQTSVPSGLAELVAGKRRLPRGAGGADPSHSCPRGAAGQSS
WAPAGQEFASFLTKGRSHSSLPQMSSSRSKDSCFTENTPLLRNSLQEKGSRCIPVYHPEF
ITAEESWEDSSADWERRYLLSREVSGLSASASSEKGDLLDSPHIRLRLSKLRRCVQWLKV
MGLFAFVVLCSILFSLYPDQGKLWQLLALSPLENYSVNLSSHVDSTLLQVDLAGALVASG
PSRPGREEHIVVELTQADALGSRWRRPQQVTHNWTVYLNPRRSEHSVMSRTFEVLTRETV
SISIRASLQQTQAVPLLMAHQYLRGSVETQVTIATAILAGVYALIIFEIVHRTLAAMLGS
LAALAALAVIGDRPSLTHVVEWIDFETLALLFGMMILVAIFSETGFFDYCAVKAYRLSRG
RVWAMIIMLCLIAAVLSAFLDNVTTMLLFTPVTIRLCEVLNLDPRQVLIAEVIFTNIGGA
ATAIGDPPNVIIVSNQELRKMGLDFAGFTAHMFIGICLVLLVCFPLLRLLYWNRKLYNKE
PSEIVELKHEIHVWRLTAQRISPASREETAVRRLLLGKVLALEHLLARRLHTFHRQISQE
DKNWETNIQELQKKHRISDGILLAKCLTVLGFVIFMFFLNSFVPGIHLDLGWIAILGAIW
LLILADIHDFEIILHRVEWATLLFFAALFVLMEALAHLHLIEYVGEQTALLIKMVPEEQR
LIAAIVLVVWVSALASSLIDNIPFTATMIPVLLNLSHDPEVGLPAPPLMYALAFG
ACLGG
NGTLIGASANVVCAGIAEQHGYGFSFMEFFRLGFPMMVVSCTVGMCYLLVAHVVVGWN
Sequence length 838
Interactions View interactions
Pathways Pathway information has different metabolic/signaling pathways associated with genes.
  Reactome
    Melanin biosynthesis
Associated diseases Disease associations from ClinVar (causal & non-causal) and other databases (OMIM, Orphanet, GWAS, etc.).
65
Evidence Score: ★☆☆☆☆  Gene-disease association found in Text Mining only ★★☆☆☆  Found in Text Mining and Unknown/Other Associations ★★★☆☆  Reported in Unknown/Other Associations across ≥2 Sources ★★★★☆  ClinVar: Pathogenic/Likely Pathogenic (<5 Variants) ★★★★★  ClinVar: Pathogenic/Likely Pathogenic (≥5 Variants)
Causal Diseases associated with Pathogenic or Likely Pathogenic variants in ClinVar
Phenotype Name Clinical Significance dbSNP ID RCV Accession Evidence Score
Albinism Likely pathogenic; Pathogenic rs141949212, rs1384042381 RCV000505060
RCV000504873
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Albinism or congenital nystagmus Likely pathogenic; Pathogenic rs121918166, rs142988897 RCV004584136
RCV006261989
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Brown oculocutaneous albinism Pathogenic rs1555375711 RCV000001003
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Hypophosphatasia Pathogenic rs201791790 RCV004540683
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Unknown / Other Associations ClinVar entries with uncertain/conflicting evidence, and associations from other databases (OMIM, Orphanet, GWAS, etc.) where the gene is not established as causal.
Phenotype Name Clinical Significance Source Evidence Score
AMBLYOPIA GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
ANGELMAN SYNDROME DUE TO MATERNAL 15Q11Q13 DELETION Orphanet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
ANGELMAN SYNDROME DUE TO MATERNAL MONOSOMY 15Q11Q13 Disgenet
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
ASTHMA GWAS catalog
★★☆☆☆
Found in Text Mining + Unknown/Other Associations
Associations from Text Mining Disease associations identified through text mining
Disease Name Disease (Merged) Source PMID Relationship Type Evidence Score
Adenocarcinoma of lung (disorder) Lung adenocarcinoma BEFREE 24419753
★☆☆☆☆
Found in Text Mining only
Age related macular degeneration Age-related macular degeneration BEFREE 28153442, 29404860
★☆☆☆☆
Found in Text Mining only
Albinism Albinism BEFREE 12469324, 16369963, 24361966, 25060099, 27647118
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Albinism Albinism Pubtator 29036293, 30414346, 33808351, 35328057, 37431738, 38279271, 39349469, 7762554 Associate
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Albinism Albinism CLINVAR_DG
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Albinism Albinism HPO_DG
★★★★☆
ClinVar: Pathogenic / Likely Pathogenic (<5 Variants)
Albinism Ocular Ocular albinism Pubtator 20806075, 21541274 Associate
★☆☆☆☆
Found in Text Mining only
Albinism Oculocutaneous Oculocutaneous albinism Pubtator 20806075, 21541274, 22734612, 28266639, 31199599, 31345173, 33124154, 33800529, 34246199, 35328057, 35704304, 35870188, 36672876, 37431738, 37882226
View all (2 more)
Associate
★☆☆☆☆
Found in Text Mining only
Albinism with hemorrhagic diathesis and pigmented reticuloendothelial cells Albinism With Hemorrhagic Diathesis And Pigmented Reticuloendothelial Cells BEFREE 26165494
★☆☆☆☆
Found in Text Mining only
Albinism, Ocular Ocular albinism LHGDN 18326704
★☆☆☆☆
Found in Text Mining only