AP4S1

AP4S1
Identifiers
Aliases AP4S1, AP47B, CLA20, CLAPS4, CPSQ6, SPG52, adaptor related protein complex 4 sigma 1 subunit
External IDs MGI: 1337065 HomoloGene: 32513 GeneCards: AP4S1
Orthologs
Species Human Mouse
Entrez

11154

11782

Ensembl

ENSG00000100478

ENSMUSG00000020955

UniProt

Q9Y587

Q9WVL1

RefSeq (mRNA)

NM_021710

RefSeq (protein)

NP_068356.1

Location (UCSC) Chr 14: 31.03 – 31.1 Mb Chr 12: 51.69 – 51.74 Mb
PubMed search [1] [2]
Wikidata
View/Edit HumanView/Edit Mouse

AP-4 complex subunit sigma-1 is a protein that in humans is encoded by the AP4S1 gene.[3]

Function

The heterotetrameric adaptor protein (AP) complexes sort integral membrane proteins at various stages of the endocytic and secretory pathways. AP4 is composed of 2 large chains, beta-4 (AP4B1) and epsilon-4 (AP4E1), a medium chain, mu-4 (AP4M1), and a small chain, sigma-4 (AP4S1, this gene).[3]

Clinical relevance

It is currently hypothesized that AP4-complex-mediated trafficking plays a crucial role in brain development and functioning.[4]

References

  1. ↑ "Human PubMed Reference:".
  2. ↑ "Mouse PubMed Reference:".
  3. 1 2 "Entrez Gene: adaptor-related protein complex 4".
  4. ↑ Abou Jamra R, Philippe O, Raas-Rothschild A, Eck SH, Graf E, Buchert R, Borck G, Ekici A, Brockschmidt FF, Nöthen MM, Munnich A, Strom TM, Reis A, Colleaux L (May 2011). "Adaptor Protein Complex 4 Deficiency Causes Severe Autosomal-Recessive Intellectual Disability, Progressive Spastic Paraplegia, Shy Character, and Short Stature". Am J Hum Genet. 88 (6): 788–95. doi:10.1016/j.ajhg.2011.04.019. PMC 3113253Freely accessible. PMID 21620353.

Further reading

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