Article · Wikipedia archive · Last revised Jun 29, 2026

AUP1

Ancient ubiquitous protein 1 is a protein that in humans is encoded by the AUP1 gene.

Last revised
Jun 29, 2026
Read time
≈ 3 min
Length
715 w
Citations
13
Source
AUP1
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesAUP1, ancient ubiquitous protein 1, lipid droplet regulating VLDL assembly factor, AUP1 lipid droplet regulating VLDL assembly factor
External IDsOMIM: 602434; MGI: 107789; HomoloGene: 7239; GeneCards: AUP1; OMA:AUP1 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_181575

NM_001025446
NM_001301649
NM_007517

RefSeq (protein)

NP_853553

NP_001288578
NP_031543

Location (UCSC)Chr 2: 74.53 – 74.53 MbChr 6: 83.03 – 83.03 Mb
PubMed search34
Wikidata
View/Edit HumanView/Edit Mouse

Ancient ubiquitous protein 1 is a protein that in humans is encoded by the AUP1 gene.567

Function

This gene encodes a protein that contains a domain with homology to the ancient conserved region of the archain 1 gene and a domain that may be involved in binding ubiquitin-conjugating enzymes. The protein encoded by this gene has been shown to bind to the conserved membrane-proximal sequence of the cytoplasmic tail of integrin alpha (IIb) subunits. These subunits play a crucial role in the integrin alpha (IIb) beta (3) inside-out signalling in platelets and megakaryocytes that leads to platelet aggregation and thrombus formation. This gene overlaps the gene for mitochondrial serine protease 25.7

Interactions

AUP1 has been shown to interact with ITGA2B.6

References

References

  1. GRCh38: Ensembl release 89: ENSG00000115307Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000068328Ensembl, 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. Jang W, Weber JS, Bashir R, Bushby K, Meisler MH (Jan 1997). "Aup1, a novel gene on mouse chromosome 6 and human chromosome 2p13". Genomics. 36 (2): 366–8. doi:10.1006/geno.1996.0477. PMID 8812468.
  6. Kato A, Kawamata N, Tamayose K, Egashira M, Miura R, Fujimura T, Murayama K, Oshimi K (Aug 2002). "Ancient ubiquitous protein 1 binds to the conserved membrane-proximal sequence of the cytoplasmic tail of the integrin alpha subunits that plays a crucial role in the inside-out signaling of alpha IIbbeta 3". J Biol Chem. 277 (32): 28934–41. doi:10.1074/jbc.M204340200. PMID 12042322.
  7. "Entrez Gene: AUP1 ancient ubiquitous protein 1".
External links
Further reading

Further reading