Gene
Entrez ID Entrez Gene ID - the GENE ID in NCBI Gene database.
4948
Gene name Gene Name - the full gene name approved by the HGNC.
OCA2 melanosomal transmembrane protein
Gene symbol Gene Symbol - the official gene symbol approved by the HGNC.
OCA2
Synonyms (NCBI Gene) Gene synonyms aliases
BEY, BEY1, BEY2, BOCA, D15S12, EYCL, EYCL2, EYCL3, HCL3, P, PED, SHEP1, SLC13B1
Chromosome Chromosome number
15
Chromosome location Chromosomal Location - indicates the cytogenetic location of the gene or region on the chromosome.
15q12-q13.1
Summary Summary of gene provided in NCBI Entrez Gene.
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.
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.
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 factor Regulation Reference
HLTF Activation 22234890
LEF1 Activation 22234890
MITF Activation 22234890
Gene ontology (GO) Gene ontology information of associated ontologies with gene provided by GO database.
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 ids of gene in databases such as OMIM, HGNC, ENSEMBLE.
MIM HGNC e!Ensembl
611409 8101 ENSG00000104044
Protein
UniProt ID 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
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Associated diseases Disease associations categorized as Causal (pathogenic variants), Unknown (uncertain genetic evidence), or Text Mining (literature-based associations)
Causal Diseases caused by PATHOGENIC or LIKELY PATHOGENIC variants from ClinVar only
Disease merge term Disease name dbSNP ID References
Albinism albinism rs141949212, rs1384042381 N/A
oculocutaneous albinism Oculocutaneous albinism rs772595552, rs763819379, rs121918169, rs1595660890, rs141949212, rs147736385, rs144812594, rs1312967591, rs121918170, rs373775562, rs387906240, rs1057518192, rs121918167 N/A
tyrosinase-positive oculocutaneous albinism Tyrosinase-positive oculocutaneous albinism rs767092342, rs797045838, rs772595552, rs771620099, rs387906241, rs1595717218, rs368124046, rs780625433, rs121918168, rs768934658, rs763819379, rs200457227, rs121918169, rs142988897, rs141949212
View all (25 more)
N/A
Unknown Includes: (1) ClinVar NON-pathogenic variants (Uncertain, Benign, Conflicting, VUS), (2) GenCC associations, (3) GWAS associations, (4) CBGDA evidence-based associations. NOTE: Diseases with pathogenic evidence are excluded to avoid conflicts.
Disease merge term Disease name Evidence References Source
Attention Deficit Hyperactivity Disorder Attention deficit hyperactivity disorder N/A N/A GWAS
Carcinoma Squamous cell carcinoma, Basal cell carcinoma N/A N/A GWAS
Diabetes Type 2 diabetes N/A N/A GWAS
Melanoma Melanoma N/A N/A GWAS
Associations from Text Mining Disease associations identified through Pubtator
Disease Name Relationship Type References
Albinism Associate 29036293, 30414346, 33808351, 35328057, 37431738, 38279271, 39349469, 7762554
Albinism Ocular Associate 20806075, 21541274
Albinism Oculocutaneous Associate 20806075, 21541274, 22734612, 28266639, 31199599, 31345173, 33124154, 33800529, 34246199, 35328057, 35704304, 35870188, 36672876, 37431738, 37882226
View all (2 more)
Astigmatism Associate 30306274, 30747064
Borderline Personality Disorder Associate 25612291
Breast Neoplasms Associate 18284607
Brown Oculocutaneous Albinism Associate 11179026
Carcinoma Non Small Cell Lung Associate 18284607
Carcinoma Squamous Cell Associate 27424798, 28456133
Color Vision Defects Associate 17236130, 18252222, 18483556, 23548203, 23555287