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Q62052

- P_MOUSE

UniProt

Q62052 - P_MOUSE

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Protein
P protein
Gene
Oca2, P
Organism
Mus musculus (Mouse)
Status
Reviewed - Annotation score: 5 out of 5 - Experimental evidence at protein leveli

Functioni

Could be involved in the transport of tyrosine, the precursor to melanin synthesis, within the melanocyte. Regulates the pH of melanosome and the melanosome maturation. One of the components of the mammalian pigmentary system. Seems to regulate the postranslational processing of tyrosinase, which catalyzes the limiting reaction in melanin synthesis. It can modulate intracellular glutathione metabolism.1 Publication

GO - Biological processi

  1. cell proliferation Source: MGI
  2. developmental pigmentation Source: MGI
  3. melanin biosynthetic process Source: MGI
  4. melanocyte differentiation Source: MGI
  5. pigmentation Source: MGI
  6. spermatid development Source: MGI
  7. transmembrane transport Source: InterPro
Complete GO annotation...

Keywords - Biological processi

Transport

Names & Taxonomyi

Protein namesi
Recommended name:
P protein
Alternative name(s):
Melanocyte-specific transporter protein
Pink-eyed dilution protein
Gene namesi
Name:Oca2
Synonyms:P
OrganismiMus musculus (Mouse)
Taxonomic identifieri10090 [NCBI]
Taxonomic lineageiEukaryotaMetazoaChordataCraniataVertebrataEuteleostomiMammaliaEutheriaEuarchontogliresGliresRodentiaSciurognathiMuroideaMuridaeMurinaeMusMus
ProteomesiUP000000589: Chromosome 7

Organism-specific databases

MGIiMGI:97454. Oca2.

Subcellular locationi

Melanosome membrane; Multi-pass membrane protein 1 Publication

Topology

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Topological domaini1 – 172172Cytoplasmic Reviewed prediction
Add
BLAST
Transmembranei173 – 19321Helical; Reviewed prediction
Add
BLAST
Topological domaini194 – 325132Extracellular Reviewed prediction
Add
BLAST
Transmembranei326 – 34621Helical; Reviewed prediction
Add
BLAST
Topological domaini347 – 3482Cytoplasmic Reviewed prediction
Transmembranei349 – 36921Helical; Reviewed prediction
Add
BLAST
Topological domaini370 – 38112Extracellular Reviewed prediction
Add
BLAST
Transmembranei382 – 40221Helical; Reviewed prediction
Add
BLAST
Topological domaini403 – 41715Cytoplasmic Reviewed prediction
Add
BLAST
Transmembranei418 – 43821Helical; Reviewed prediction
Add
BLAST
Topological domaini439 – 50163Extracellular Reviewed prediction
Add
BLAST
Transmembranei502 – 52221Helical; Reviewed prediction
Add
BLAST
Topological domaini523 – 61795Cytoplasmic Reviewed prediction
Add
BLAST
Transmembranei618 – 63821Helical; Reviewed prediction
Add
BLAST
Topological domaini639 – 6391Extracellular Reviewed prediction
Transmembranei640 – 66021Helical; Reviewed prediction
Add
BLAST
Topological domaini661 – 67515Cytoplasmic Reviewed prediction
Add
BLAST
Transmembranei676 – 69621Helical; Reviewed prediction
Add
BLAST
Topological domaini697 – 71822Extracellular Reviewed prediction
Add
BLAST
Transmembranei719 – 73921Helical; Reviewed prediction
Add
BLAST
Topological domaini740 – 75920Cytoplasmic Reviewed prediction
Add
BLAST
Transmembranei760 – 78021Helical; Reviewed prediction
Add
BLAST
Topological domaini781 – 81030Extracellular Reviewed prediction
Add
BLAST
Transmembranei811 – 83121Helical; Reviewed prediction
Add
BLAST
Topological domaini832 – 8332Cytoplasmic Reviewed prediction

GO - Cellular componenti

  1. endoplasmic reticulum membrane Source: Ensembl
  2. endosome membrane Source: Ensembl
  3. integral component of membrane Source: UniProtKB-KW
  4. lysosomal membrane Source: Ensembl
  5. melanosome membrane Source: UniProtKB-SubCell
Complete GO annotation...

Keywords - Cellular componenti

Membrane

Pathology & Biotechi

Involvement in diseasei

Defects in Oca2 are a cause of hypopigmentation of the eyes, skin, and fur. The protein is missing or altered in six independent mutant alleles of the OCA2 locus, suggesting that disruption of this gene results in hypopigmentation phenotype that defines mutant OCA2 alleles.1 Publication

Keywords - Diseasei

Albinism

PTM / Processingi

Molecule processing

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Chaini1 – 833833P protein
PRO_0000172510Add
BLAST

Amino acid modifications

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Glycosylationi210 – 2101N-linked (GlcNAc...) Reviewed prediction
Glycosylationi214 – 2141N-linked (GlcNAc...) Reviewed prediction
Glycosylationi269 – 2691N-linked (GlcNAc...) Reviewed prediction

Keywords - PTMi

Glycoprotein

Proteomic databases

PaxDbiQ62052.
PRIDEiQ62052.

PTM databases

PhosphoSiteiQ62052.

Expressioni

Tissue specificityi

Most abundant in melanocytes. Also present in neonatal and adult eye tissue presumably as a result of expression in the retinal pigmented epithelium and choroid body, known sites of melanogenesis in the eye. Small but detectable amounts also observed in fetal, neonatal and adult brain. Moderate amounts detected in adult testis and ovary. Not detected in heart, kidney, spleen, liver or thymus.1 Publication

Gene expression databases

ArrayExpressiQ62052.
BgeeiQ62052.
CleanExiMM_OCA2.
GenevestigatoriQ62052.

Structurei

3D structure databases

ProteinModelPortaliQ62052.
SMRiQ62052. Positions 309-521.

Family & Domainsi

Compositional bias

Feature keyPosition(s)LengthDescriptionGraphical viewFeature identifierActions
Compositional biasi246 – 2505Poly-Val
Compositional biasi259 – 2624Poly-Arg

Sequence similaritiesi

Keywords - Domaini

Transmembrane, Transmembrane helix

Phylogenomic databases

eggNOGiCOG1055.
GeneTreeiENSGT00390000017120.
HOGENOMiHOG000047303.
HOVERGENiHBG008343.
InParanoidiQ0VBP9.
OMAiQQVTHNW.
OrthoDBiEOG738040.
PhylomeDBiQ62052.
TreeFamiTF323556.

Family and domain databases

InterProiIPR004680. Cit_transptr-like_dom.
[Graphical view]
PfamiPF03600. CitMHS. 1 hit.
[Graphical view]

Sequencei

Sequence statusi: Complete.

Q62052-1 [UniParc]FASTAAdd to Basket

« Hide

MRLENKDIRL ASAVLEVELH QTSALSVPTC PDPGRLLTVK PATSNYKLGQ    50
ADPCIPYAGE AAGKSVCVPE HTEFGSFLVK GSSSLKDLSF KEDTPLLWNS 100
SQKKRSQLMP VHHPEFIATE GSWENGLTAW EQKCMLGKEV ADLSALASSE 150
KRDLAGSVHL RAQVSKLGCC VRWIKITGLF VFVVLCSILF SLYPDQGKFW 200
QLLAVSPLEN YSVNLSGHAD SMILQLDLAG ALMAGGPSGS GKEEHVVVVV 250
TQTDAAGNRR RRPQQLTYNW TVLLNPRSEH VVVSRTFEIV SREAVSISIQ 300
ASLQQTRLVP LLLAHQFLGA SVEAQVASAV AILAGVYTLI IFEIVHRTLA 350
AMLGALAALA ALAVVGDRPS LTHVVEWIDF ETLALLFGMM ILVAVFSETG 400
FFDYCAVKAY QLSRGRVWAM IFMLCLMAAI LSAFLDNVTT MLLFTPVTIR 450
LCEVLNLDPR QVLIAEVIFT NIGGAATAIG DPPNVIIVSN QELRKMGLDF 500
AGFTAHMFLG ICLVLLVSFP LLRLLYWNKK LYNKEPSEIV ELKHEIHVWR 550
LTAQRISPAS REETAVRGLL LEKVLALEHL LAQRLHTFHR QISQEDKNWE 600
TNIQELQRKH RISDRSLLVK CLTVLGFVIS MFFLNSFVPG IHLDLGWIAI 650
LGAIWLLILA DIHDFEIILH RVEWATLLFF AALFVLMEAL THLHLVEYVG 700
EQTALLIKMV PEDQRFAAAI VLIVWVSALA SSLIDNIPFT ATMIPVLLNL 750
SQDPEISLPA LPLMYALALG ACLGGNGTLI GASTNVVCAG IAEKHGYGFS 800
FMEFFRLGFP VMLMSCTIGM CYLLIAHIVV GWN 833
Length:833
Mass (Da):91,869
Last modified:November 1, 1996 - v1
Checksum:i41B9F6491EFAFEE3
GO

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
M97900 mRNA. Translation: AAA39908.1.
BC119220 mRNA. Translation: AAI19221.1.
BC120549 mRNA. Translation: AAI20550.1.
CCDSiCCDS21319.1.
RefSeqiNP_068679.1. NM_021879.2.
XP_006540762.1. XM_006540699.1.
UniGeneiMm.137052.

Genome annotation databases

EnsembliENSMUST00000032633; ENSMUSP00000032633; ENSMUSG00000030450.
GeneIDi18431.
KEGGimmu:18431.
UCSCiuc009hdy.1. mouse.

Cross-referencesi

Web resourcesi

Protein Spotlight

Questioning colour - Issue 54 of January 2005

Sequence databases

Select the link destinations:
EMBL
GenBank
DDBJ
Links Updated
M97900 mRNA. Translation: AAA39908.1 .
BC119220 mRNA. Translation: AAI19221.1 .
BC120549 mRNA. Translation: AAI20550.1 .
CCDSi CCDS21319.1.
RefSeqi NP_068679.1. NM_021879.2.
XP_006540762.1. XM_006540699.1.
UniGenei Mm.137052.

3D structure databases

ProteinModelPortali Q62052.
SMRi Q62052. Positions 309-521.
ModBasei Search...
MobiDBi Search...

PTM databases

PhosphoSitei Q62052.

Proteomic databases

PaxDbi Q62052.
PRIDEi Q62052.

Protocols and materials databases

Structural Biology Knowledgebase Search...

Genome annotation databases

Ensembli ENSMUST00000032633 ; ENSMUSP00000032633 ; ENSMUSG00000030450 .
GeneIDi 18431.
KEGGi mmu:18431.
UCSCi uc009hdy.1. mouse.

Organism-specific databases

CTDi 4948.
MGIi MGI:97454. Oca2.

Phylogenomic databases

eggNOGi COG1055.
GeneTreei ENSGT00390000017120.
HOGENOMi HOG000047303.
HOVERGENi HBG008343.
InParanoidi Q0VBP9.
OMAi QQVTHNW.
OrthoDBi EOG738040.
PhylomeDBi Q62052.
TreeFami TF323556.

Miscellaneous databases

ChiTaRSi OCA2. mouse.
NextBioi 294098.
PROi Q62052.
SOURCEi Search...

Gene expression databases

ArrayExpressi Q62052.
Bgeei Q62052.
CleanExi MM_OCA2.
Genevestigatori Q62052.

Family and domain databases

InterProi IPR004680. Cit_transptr-like_dom.
[Graphical view ]
Pfami PF03600. CitMHS. 1 hit.
[Graphical view ]
ProtoNeti Search...

Publicationsi

« Hide 'large scale' publications
  1. "The mouse pink-eyed dilution gene: association with human Prader-Willi and Angelman syndromes."
    Gardner J.M., Nakatsu Y., Gondo Y., Lee S., Lyon M.F., King R.A., Brilliant M.H.
    Science 257:1121-1124(1992) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [MRNA], TISSUE SPECIFICITY, DISEASE.
    Strain: C57BL/6J.
    Tissue: Skin.
  2. "The status, quality, and expansion of the NIH full-length cDNA project: the Mammalian Gene Collection (MGC)."
    The MGC Project Team
    Genome Res. 14:2121-2127(2004) [PubMed] [Europe PMC] [Abstract]
    Cited for: NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
    Tissue: Brain.
  3. "Identification of a melanosomal membrane protein encoded by the pink-eyed dilution (type II oculocutaneous albinism) gene."
    Rosemblat S., Durham-Pierre D., Gardner J.M., Nakatsu Y., Brilliant M.H., Orlow S.J.
    Proc. Natl. Acad. Sci. U.S.A. 91:12071-12075(1994) [PubMed] [Europe PMC] [Abstract]
    Cited for: CHARACTERIZATION OF PROTEIN PRODUCT, SUBCELLULAR LOCATION.
  4. "The mouse p (pink-eyed dilution) and human P genes, oculocutaneous albinism type 2 (OCA2), and melanosomal pH."
    Brilliant M.H.
    Pigment Cell Res. 14:86-93(2001) [PubMed] [Europe PMC] [Abstract]
    Cited for: FUNCTION.
  5. "Inverse correlation between pink-eyed dilution protein expression and induction of melanogenesis by bafilomycin A1."
    Manga P., Orlow S.J.
    Pigment Cell Res. 14:362-367(2001) [PubMed] [Europe PMC] [Abstract]
    Cited for: INDUCTION OF MELANINE SYNTHESIS BY BAFILOMYCIN A1 ON P-NULL MELANOCYTES.
  6. "Pink-eyed dilution protein controls the processing of tyrosinase."
    Chen K., Manga P., Orlow S.J.
    Mol. Biol. Cell 13:1953-1964(2002) [PubMed] [Europe PMC] [Abstract]
    Cited for: INVOLVEMENT IN POSTTRANSLATIONAL PROCESSING OF TYROSINASE.
  7. "Pink-eyed dilution protein modulates arsenic sensitivity and intracellular glutathione metabolism."
    Staleva L., Manga P., Orlow S.J.
    Mol. Biol. Cell 13:4206-4220(2002) [PubMed] [Europe PMC] [Abstract]
    Cited for: INVOLVEMENT IN INTRACELLULAR GLUTATHIONE METABOLISM.

Entry informationi

Entry nameiP_MOUSE
AccessioniPrimary (citable) accession number: Q62052
Secondary accession number(s): Q0VBP9
Entry historyi
Integrated into UniProtKB/Swiss-Prot: December 21, 2004
Last sequence update: November 1, 1996
Last modified: July 9, 2014
This is version 105 of the entry and version 1 of the sequence. [Complete history]
Entry statusiReviewed (UniProtKB/Swiss-Prot)
Annotation programChordata Protein Annotation Program

Miscellaneousi

Keywords - Technical termi

Complete proteome, Reference proteome

Documents

  1. MGD cross-references
    Mouse Genome Database (MGD) cross-references in UniProtKB/Swiss-Prot
  2. Protein Spotlight
    Protein Spotlight articles and cited UniProtKB/Swiss-Prot entries
  3. SIMILARITY comments
    Index of protein domains and families

External Data

Dasty 3

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