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AP3B1

AP-3 complex subunit beta-1 is a protein that in humans is encoded by the AP3B1 gene.

Last revised
Jun 24, 2026
Read time
≈ 4 min
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Citations
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Source
AP3B1
Identifiers
AliasesAP3B1, ADTB3, ADTB3A, HPS, HPS2, PE, adaptor related protein complex 3 beta 1 subunit, adaptor related protein complex 3 subunit beta 1
External IDsOMIM: 603401; MGI: 1333879; HomoloGene: 68125; GeneCards: AP3B1; OMA:AP3B1 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001271769
NM_003664

NM_009680

RefSeq (protein)

NP_001258698
NP_003655

NP_033810

Location (UCSC)Chr 5: 78 – 78.29 MbChr 13: 94.5 – 94.7 Mb
PubMed search34
Wikidata
View/Edit HumanView/Edit Mouse

AP-3 complex subunit beta-1 is a protein that in humans is encoded by the AP3B1 gene.567

Function

This gene encodes a protein that may play a role in organelle biogenesis associated with melanosomes, platelet dense granules, and lysosomes. The encoded protein is part of the heterotetrameric AP-3 protein complex which interacts with the scaffolding protein clathrin. Mutations in this gene are associated with Hermansky–Pudlak syndrome type 2.7

Interactions

AP3B1 has been shown to interact with AP3S2.5

References

References

  1. GRCh38: Ensembl release 89: ENSG00000132842Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000021686Ensembl, 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. Dell'Angelica EC, Ooi CE, Bonifacino JS (Jun 1997). "Beta3A-adaptin, a subunit of the adaptor-like complex AP-3". The Journal of Biological Chemistry. 272 (24): 15078–84. doi:10.1074/jbc.272.24.15078. PMID 9182526.
  6. Simpson F, Peden AA, Christopoulou L, Robinson MS (May 1997). "Characterization of the adaptor-related protein complex, AP-3". The Journal of Cell Biology. 137 (4): 835–45. doi:10.1083/jcb.137.4.835. PMC 2139840. PMID 9151686.
  7. "Entrez Gene: AP3B1 adaptor-related protein complex 3, beta 1 subunit".
External links
Further reading

Further reading