Article · Wikipedia archive · Last revised Jul 9, 2026

ERp27

Endoplasmic reticulum resident protein 27 is a protein that in humans is encoded by the ERP27 gene. It is a homologue of PDI, localised to the Endoplasmic Reticulum. The structure of ERp27 has been solved by both X-ray crystallography and NMR spectroscopy, showing it to be composed of two thioredoxin-like domains with homology to the non-catalytic b and b' domains of PDI. The function of ERp27 is unknown, but on the basis of its homology with PDI it is thought to possess chaperone activity.

Last revised
Jul 9, 2026
Read time
≈ 1 min
Length
324 w
Citations
10
Source
ERP27
Available structures
PDBOrtholog search: PDBe RCSB
Identifiers
AliasesERP27, C12orf46, PDIA8, endoplasmic reticulum protein 27
External IDsOMIM: 610642; MGI: 1916437; HomoloGene: 12303; GeneCards: ERP27; OMA:ERP27 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_152321
NM_001300784

NM_026983

RefSeq (protein)

NP_001287713
NP_689534

NP_081259

Location (UCSC)Chr 12: 14.91 – 14.94 MbChr 6: 136.88 – 136.9 Mb
PubMed search34
Wikidata
View/Edit HumanView/Edit Mouse

Endoplasmic reticulum resident protein 27 is a protein that in humans is encoded by the ERP27 gene. It is a homologue of PDI (protein disulfide-isomerase), localised to the Endoplasmic Reticulum. The structure of ERp27 has been solved by both X-ray crystallography and NMR spectroscopy,5 showing it to be composed of two thioredoxin-like domains with homology to the non-catalytic b and b' domains of PDI. The function of ERp27 is unknown, but on the basis of its homology with PDI it is thought to possess chaperone activity.6

References

References

  1. GRCh38: Ensembl release 89: ENSG00000139055Ensembl, May 2017
  2. GRCm38: Ensembl release 89: ENSMUSG00000030219Ensembl, 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. Amin NT, Wallis AK, Wells SA, Rowe ML, Williamson RA, Howard MJ, et al. (March 2013). "High-resolution NMR studies of structure and dynamics of human ERp27 indicate extensive interdomain flexibility". The Biochemical Journal. 450 (2): 321–332. doi:10.1042/BJ20121635. PMC 4203274. PMID 23234573.
  6. Galligan JJ, Petersen DR (July 2012). "The human protein disulfide isomerase gene family". Human Genomics. 6 (1) 6. doi:10.1186/1479-7364-6-6. PMC 3500226. PMID 23245351.