Homocysteine-responsive endoplasmic reticulum-resident ubiquitin-like domain member 1 protein is a protein that in humans is encoded by the HERPUD1 gene.[5][6][7]

HERPUD1
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesHERPUD1, HERP, Mif1, SUP, homocysteine inducible ER protein with ubiquitin like domain 1
External IDsOMIM: 608070; MGI: 1927406; HomoloGene: 40973; GeneCards: HERPUD1; OMA:HERPUD1 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_001010989
NM_001010990
NM_001272103
NM_014685

NM_022331
NM_001357205

RefSeq (protein)

NP_001010989
NP_001259032
NP_055500
NP_001259032.1

NP_071726
NP_001344134

Location (UCSC)Chr 16: 56.93 – 56.94 MbChr 8: 95.11 – 95.12 Mb
PubMed search[3][4]
Wikidata
View/Edit HumanView/Edit Mouse

The accumulation of unfolded proteins in the endoplasmic reticulum (ER) triggers the ER stress response. This response includes the inhibition of translation to prevent further accumulation of unfolded proteins, the increased expression of proteins involved in polypeptide folding, known as the unfolded protein response (UPR), and the destruction of misfolded proteins by the ER-associated protein degradation (ERAD) system. This gene may play a role in both UPR and ERAD. Its expression is induced by UPR and it has an ER stress response element in its promoter region while the encoded protein has an N-terminal ubiquitin-like domain which may interact with the ERAD system. This protein has been shown to interact with presenilin proteins and to increase the level of amyloid-beta protein following its overexpression. Alternative splicing of this gene produces multiple transcript variants, some encoding different isoforms. The full-length nature of all transcript variants has not been determined.[7]

Interactions

HERPUD1 has been shown to interact with UBQLN1[8] and UBQLN2.[8]

References

Further reading


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