Article · Wikipedia archive · Last revised Jun 13, 2026

DOC2A

Double C2-like domain-containing protein alpha is a protein that in humans is encoded by the DOC2A gene.

Last revised
Jun 13, 2026
Read time
≈ 2 min
Length
561 w
Citations
15
Source
DOC2A
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesDOC2A, Doc2, double C2 domain alpha
External IDsOMIM: 604567; MGI: 109446; HomoloGene: 2657; GeneCards: DOC2A; OMA:DOC2A - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001282062
NM_001282063
NM_001282068
NM_003586

NM_010069
NM_001368355
NM_001368356
NM_001368357
NM_001368358

RefSeq (protein)

NP_001268991
NP_001268992
NP_001268997
NP_003577

NP_034199
NP_001355284
NP_001355285
NP_001355286
NP_001355287

Location (UCSC)Chr 16: 30.01 – 30.02 MbChr 7: 126.45 – 126.45 Mb
PubMed search34
Wikidata
View/Edit HumanView/Edit Mouse

Double C2-like domain-containing protein alpha is a protein that in humans is encoded by the DOC2A gene.567

There are at least two protein isoforms of the Double C2 protein, namely alpha (DOC2A) and beta (DOC2B), which contain two C2-like domains. DOC2A and DOC2B are encoded by different genes; these genes are at times confused with the unrelated DAB2 gene which was initially named DOC-2. DOC2A is mainly expressed in brain and is suggested to be involved in Ca2+-dependent neurotransmitter release.7

Interactions

DOC2A has been shown to interact with UNC13B68 and UNC13A.9

References

References

  1. GRCh38: Ensembl release 89: ENSG00000149927Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000052301Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. Orita S, Sasaki T, Naito A, Komuro R, Ohtsuka T, Maeda M, Suzuki H, Igarashi H, Takai Y (Feb 1995). "Doc2: a novel brain protein having two repeated C2-like domains". Biochem Biophys Res Commun. 206 (2): 439–48. doi:10.1006/bbrc.1995.1062. PMID 7826360.
  6. Mochida S, Orita S, Sakaguchi G, Sasaki T, Takai Y (Oct 1998). "Role of the Doc2α–Munc13–1 interaction in the neurotransmitter release process". Proc Natl Acad Sci U S A. 95 (19): 11418–22. Bibcode:1998PNAS...9511418M. doi:10.1073/pnas.95.19.11418. PMC 21657. PMID 9736751.
  7. "Entrez Gene: DOC2A double C2-like domains, alpha".
  8. Orita S, Naito A, Sakaguchi G, Maeda M, Igarashi H, Sasaki T, Takai Y (June 1997). "Physical and functional interactions of Doc2 and Munc13 in Ca2+-dependent exocytotic machinery". J. Biol. Chem. 272 (26): 16081–4. doi:10.1074/jbc.272.26.16081. PMID 9195900.
  9. "Protein unc-13 homolog A". UniProt.
Further reading

Further reading