1: OCA2 oculocutaneous albinism II [ Homo sapiens ]

GeneID: 4948 updated 26-Oct-2009

[Top][Help]Summary

Official Symbol
OCA2provided by HGNC
Official Full Name
oculocutaneous albinism IIprovided by HGNC
Primary Source
HGNC:8101
See related
Ensembl:ENSG00000104044; HPRD:01945; MIM:611409
Gene type
protein coding
RefSeq status
REVIEWED
Organism
Homo sapiens
Lineage
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia; Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae; Homo
Also known as
P; BEY; PED; BEY1; BEY2; BOCA; EYCL; HCL3; EYCL2; EYCL3; SHEP1; D15S12; OCA2
Summary
This gene encodes the human homologue 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 - a precursor of melanin. Mutations in this gene result in type 2 oculocutaneous albinism. [provided by RefSeq]

[Top][Help]Genomic regions, transcripts, and products

(minus strand) Go to reference sequence detailsTry our new Sequence Viewer


[Top][Help]Bibliography

Related Articles in PubMed

GeneRIFs: Gene References Into Function What's a GeneRIF?

PubMed 1. The variant allele of OCA2 R419Q (rs1800407) is associated with increased risk of malignant melanoma.
PubMed 2. Three single nucleotide polymorphisms found within intron 1 of the OCA2 gene (rs7495174, rs4778241, rs4778138). 30 UTR region (rs1129038) of the HERC2 gene
PubMed 3. The OCA2 Arg419Gln is associated with basal cell carcinoma
PubMed 4. OCA2 is targeted to and functions within melanosomes but that residence within melanosomes may be regulated by secondary or alternative targeting to lysosomes.
PubMed 5. Polymorphism of pigmentation genes (OCA2 and ASIP) in some populations of Russia
PubMed 6. Observational study and genome-wide association study of gene-disease association and gene-environment interaction. (HuGE Navigator)
PubMed 7. TYR is the major OCA (oculocutaneous albinism) gene in Denmark, but several patients do not have mutations in the investigated genes.
PubMed 8. It is concluded that OCA2 rs1800407 is associated with eye colour.
PubMed 9. strong correlations in MATP-L374F, OCA2, and melanocortin-1 receptor with skin, eye, and hair color variation, respectively
PubMed 10. OCA2 and HERC2 have roles in hair color in Australian adolescents
PubMed 11. Oculocutaneous albinism phenotype (OCA2) can be modified by mutation in TYRP1.
PubMed 12. Observational study of gene-disease association and gene-gene interaction. (HuGE Navigator)
PubMed 13. Variation present in the OCA2 gene and perhaps some other pigment related genes must be taken into account in order to explain the high phenotypic variation in iris colour.
PubMed 14. Most patients with AROA (autosomal recessive ocular albinism) represent phenotypically mild variants of oculocutaneous albinism , well over half of which is OCA1.
PubMed 15. results confirm that OCA2 is the major human iris color gene and suggest that using an empirical database-driven system, genotypes from a modest number of SNPs within this gene can be used to accurately predict iris melanin content from DNA
PubMed 16. Genome-wide association study of gene-disease association. (HuGE Navigator)
PubMed 17. Observational study of genotype prevalence. (HuGE Navigator)
PubMed 18. Observational study of gene-disease association. (HuGE Navigator)
PubMed 19. Human DNA sequences;hair colour
PubMed 20. Pink-eye-dilution gene mutations underlie oculocutaneous albinism in this family. Two known mutations in MC1R caused red hair color in one family member. No modifier effect of MC1R on P mutations could be deduced.
PubMed 21. 3 different haplotypes (TAGCT, TAGTT and TAGCC with frequencies of 0.66, 0.28 and 0.06, respectively) associated with the mutation in the 53 OCA2 patients, while 11 different haplotypes were observed in the control group
PubMed 22. These findings suggest that OCA2 481Thr arose in a region of low ultraviolet radiation and thereafter spread to neighboring populations.
PubMed 23. P gene, in part, determiontes normal phenotypic variation in human eye color and may represent an inherited biomarkers of cutaneous cancer risk
PubMed 24. two missense substitutions, A481T and Q799H in the P gene in oculocutaneous albinism
PubMed 25. 9 novel mutations and 12 novel polymorphisms associated with oculocutaneous albinism type II are reported.
PubMed 26. we show that MM and OCA2 are associated (p value=0.030 after correction for multiple testing).
PubMed 27. Differences within the 5' proximal regulatory control region of the OCA2 gene alter expression or messenger RNA-transcript levels and may be responsible for eye-color and other pigmentary trait associations.
PubMed 28. A 122.5-kilobase deletion of the P gene underlies the high prevalence of oculocutaneous albinism type 2 in the Navajo population
PubMed 29. We show that OCA2 has measurable effects on skin pigmentation differences between the west African and west European parental populations.
PubMed 30. A candidate gene for pigmentation.
PubMed 31. The macular hypoplasia has to be considered a concerted interaction with compound heterozygous mutations in the P gene manifesting a mild form of oculocutaneous albinism.
PubMed 32. role of P protein and tyrosinase in oculocutaneous albinism

[Top][Help]General gene information

Markers

GDB:593280(e-PCR)
Links: UniSTS:157953
SHGC-12468(e-PCR)
Links: UniSTS:69890
GDB:593284(e-PCR)
Links: UniSTS:157954
SHGC-147969(e-PCR)
Links: UniSTS:176131
GDB:593290(e-PCR)
Links: UniSTS:157956
GDB:593293(e-PCR)
Links: UniSTS:157957
GDB:593377(e-PCR)
Links: UniSTS:157958
GDB:593381(e-PCR)
Links: UniSTS:157959
GDB:593391(e-PCR)
Links: UniSTS:157960
GDB:593466(e-PCR)
Links: UniSTS:157962
D15S156(e-PCR), detects polymorphism
Links: UniSTS:26123
GDB:593504(e-PCR)
Links: UniSTS:157964
GDB:593534(e-PCR)
Links: UniSTS:157965
GDB:593548(e-PCR)
Links: UniSTS:157966
GDB:593558(e-PCR)
Links: UniSTS:157967
GDB:593798(e-PCR)
Links: UniSTS:157973
GDB:593820(e-PCR)
Links: UniSTS:157975
GDB:593842(e-PCR)
Links: UniSTS:157976
GDB:593865(e-PCR)
Links: UniSTS:157977
GDB:593876(e-PCR)
Links: UniSTS:157978
GDB:593922(e-PCR)
Links: UniSTS:157980
GDB:593931(e-PCR)
Links: UniSTS:157981
GDB:593955(e-PCR)
Links: UniSTS:157982
RH119044(e-PCR)
Links: UniSTS:138272
D15S931(e-PCR)
Links: UniSTS:41591
D15S661(e-PCR)
Links: UniSTS:45948
D15S217(e-PCR)
Links: UniSTS:45949
OCA2_Exon_11(e-PCR)
Links: UniSTS:512129
OCA2_Exon_14(e-PCR)
Links: UniSTS:512130
OCA2_Exon_15(e-PCR)
Links: UniSTS:512131
SHGC-156027(e-PCR)
Links: UniSTS:182916
OCA2_Exon_18(e-PCR)
Links: UniSTS:512132
OCA2_Exon_21(e-PCR)
Links: UniSTS:512133
OCA2_Exon_6(e-PCR)
Links: UniSTS:512134
L29654(e-PCR)
Links: UniSTS:13447
G63215(e-PCR)
Links: UniSTS:140189
WI-15852(e-PCR)
Links: UniSTS:20389
D15S144(e-PCR), detects polymorphism
Links: UniSTS:11942
D15S1250(e-PCR)
Links: UniSTS:20390
SGC32570(e-PCR)
Links: UniSTS:30899
RH69210(e-PCR)
Links: UniSTS:11708
SHGC-149153(e-PCR)
Links: UniSTS:176834
GDB:593271(e-PCR)
Links: UniSTS:157950
GDB:593274(e-PCR)
Links: UniSTS:157951

Phenotypes

[Skin/hair/eye pigmentation 1, blond/brown hair]
MIM: 227220
[Skin/hair/eye pigmentation 1, blue/nonblue eyes]
MIM: 227220
Albinism, brown oculocutaneous
MIM: 203200
Albinism, oculocutaneous, type II
MIM: 203200
Skin/hair/eye pigmentation 1, blond/brown hair
MIM: 227220
Skin/hair/eye pigmentation 1, blue/nonblue eyes
MIM: 227220
Genetic determinants of hair, eye and skin pigmentation in Europeans
NHGRI GWA Catalog
A Genome-Wide Association Study Identifies Novel Alleles Associated with Hair Color and Skin Pigmentation
NHGRI GWA Catalog

Genotypes

See OCA2 SNP Genotype Report
See OCA2 SNP Geneview Report
See OCA2 SNP Variation Viewer Report Variation View Link

Homology

Homologs of the OCA2 gene The OCA2 gene is conserved in chimpanzee, dog, cow, mouse, chicken, zebrafish, and mosquito.


Map Viewer (Mouse)

[Top][Help]General protein information

Preferred Names
oculocutaneous albinism II
Names
oculocutaneous albinism II
eye color 3 (brown)
hair color 3 (brown)
eye color 2 (central brown)
total brown iris pigmentation
melanocyte-specific transporter protein
oculocutaneous albinism II (pink-eye dilution homolog, mouse)

[Top][Help]NCBI Reference Sequences (RefSeq)

RefSeqs maintained independently of Annotated Genomes

These reference sequences exist independently of genome builds. Explain

Genomic

  1. NG_009846.1 RefSeqGene

    Range
    5000..349437
    Download
    GenBank FASTA Sequence Viewer (Graphics)

mRNA and Protein(s)

  1. NM_000275.2NP_000266.2  oculocutaneous albinism II

    Source sequence(s)
    BC012097,M99564
    Consensus CDS
    CCDS10020.1
    UniProtKB/Swiss-Prot
    Q04671
    Conserved Domains (2) summary
    cd01116
    Location:338546
    Blast Score: 538
    P_permease; Permease P (pink-eyed dilution). Mutations in the human melanosomal P gene were responsible for classic phenotype of oculocutaneous albinism type 2 (OCA2). Although the precise function of the P protein is unknown, it was predicted to regulate the...
    cl09110
    Location:592829
    Blast Score: 449
    ArsB_NhaD_permease; Anion permease ArsB/NhaD. These permeases have been shown to translocate sodium, arsenate, antimonite, sulfate and organic anions across biological membranes in all three kingdoms of life. A typical anion permease contains 8-13 transmembrane helices...

RefSeqs of Annotated Genomes: Build 37.1

The following sections contain reference sequences that belong to a specific genome build. Explain

Genome Reference Consortium Human Build 37 (GRCh37), Primary_Assembly

Genomic

  1. NC_000015.9

    Range
    28000020..28344457, complement
    Download
    GenBank FASTA Sequence Viewer (Graphics)
  2. NT_026446.14 

    Range
    4435167..4779604, complement
    Download
    GenBank FASTA Sequence Viewer (Graphics)

Alternate assembly (Celera)

Genomic

  1. AC_000058.1

    Range
    6159863..6486884, complement
    Download
    GenBank FASTA Sequence Viewer (Graphics)
  2. NW_925783.1 

    Range
    4380824..4707845, complement
    Download
    GenBank FASTA Sequence Viewer (Graphics)

Alternate assembly (HuRef)

Genomic

  1. AC_000147.1

    Range
    6126617..6454008
    Download
    GenBank FASTA Sequence Viewer (Graphics)
  2. NW_001838195.2 

    Range
    240438..567829
    Download
    GenBank FASTA Sequence Viewer (Graphics)

[Top][Help]Related Sequences

  Nucleotide   Protein
  genomic   AC079090.4   None
  genomic   AC090696.6   None
  genomic   AC124091.16   None
  genomic   AC135329.12  (76786..84862)   None
  genomic   CH471151.1   EAW57661.1
       EAW57662.1
       EAW57663.1
  genomic   U19152.1   None
  genomic   U19153.1   AAC13784.1
  genomic   U19154.1   AAC13784.1
  genomic   U19155.1   AAC13784.1
  genomic   U19156.1   AAC13784.1
  genomic   U19157.1   AAC13784.1
  genomic   U19158.1   AAC13784.1
  genomic   U19159.1   AAC13784.1
  genomic   U19160.1   AAC13784.1
  genomic   U19161.1   AAC13784.1
  genomic   U19162.1   AAC13784.1
  genomic   U19163.1   AAC13784.1
  genomic   U19164.1   AAC13784.1
  genomic   U19165.1   AAC13784.1
  genomic   U19166.1   AAC13784.1
  genomic   U19167.1   AAC13784.1
  genomic   U19168.1   AAC13784.1
  genomic   U19169.1   AAC13784.1
  genomic   U19170.1   AAC13783.1
  genomic   U19171.1   AAC13784.1
  genomic   U19172.1   AAC13784.1
  genomic   U19173.1   AAC13784.1
  genomic   U19174.1   AAC13784.1
  genomic   U19175.1   AAC13784.1
  genomic   U19176.1   AAC13784.1
  mRNA   BC012097.1   AAH12097.1
  mRNA   M97901.1   AAA36430.1
  mRNA   M99564.1   AAA36477.1
Protein Accession   Links
Q04671.2   GenPept   UniProtKB/Swiss-Prot:Q04671

[Top][Help]Additional Links

Gene LinkOut

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