Seroatlas · Human Serome Atlas

HERPUD1

Homocysteine-responsive endoplasmic reticulum-resident ubiquitin-like domain member 1 protein

Also known as: HERP, HERP1_HUMAN, KIAA0025, Mif1, SUP

Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene

Protein identityUniProt · HPA

UniProt accession
Q15011
Gene
HERPUD1
Ensembl
ENSG00000051108
Chromosome
16
Canonical length
391 aa
Protein class
Cancer-related genes, Plasma proteins, Predicted intracellular proteins, Predicted membrane proteins
Subcellular location
Plasma membrane,Cytosol

OverviewNCBI Gene

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 encoding different isoforms. The full-length nature of all transcript variants has not been determined. [provided by RefSeq, Jan 2013]

Canonical amino-acid sequenceUniProt

391 residues, UniProt reviewed canonical sequence.

>Q15011|HERPUD1
     1  MESETEPEPV TLLVKSPNQR HRDLELSGDR GWSVGHLKAH LSRVYPERPR PEDQRLIYSG
    61  KLLLDHQCLR DLLPKQEKRH VLHLVCNVKS PSKMPEINAK VAESTEEPAG SNRGQYPEDS
   121  SSDGLRQREV LRNLSSPGWE NISRPEAAQQ AFQGLGPGFS GYTPYGWLQL SWFQQIYARQ
   181  YYMQYLAATA ASGAFVPPPS AQEIPVVSAP APAPIHNQFP AENQPANQNA APQVVVNPGA
   241  NQNLRMNAQG GPIVEEDDEI NRDWLDWTYS AATFSVFLSI LYFYSSLSRF LMVMGATVVM
   301  YLHHVGWFPF RPRPVQNFPN DGPPPDVVNQ DPNNNLQEGT DPETEDPNHL PPDRDVLDGE
   361  QTSPSFMSTA WLVFKTFFAS LLPEGPPAIA N

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against HERPUD1 can act on the native protein depends on physical access: surface and secreted proteins are reachable by circulating antibodies, intracellular proteins usually are not.

Antibody reachability
Other membrane
Secreted
No
Transmembrane segments
2
Mean surface accessibility (rSASA)
0.58
Highest tissue expression
355 nTPM

Expression across tissuesHPA

Tissue

  • pancreas: 355 nTPM
  • tonsil: 231 nTPM
  • epididymis: 208 nTPM
  • choroid plexus: 207 nTPM
  • thyroid gland: 200 nTPM
  • prostate: 200 nTPM

Single-cell type

  • plasma cells: 2,701 nCPM
  • epididymal principal cells: 1,965 nCPM
  • epididymal basal cells: 1,425 nCPM
  • pdcs: 1,257 nCPM
  • syncytiotrophoblasts: 976 nCPM
  • epididymal efferent duct absorptive cells: 727 nCPM

Immune cell

  • plasmacytoid DC: 917 nTPM
  • total PBMC: 418 nTPM
  • memory B-cell: 385 nTPM
  • naive B-cell: 343 nTPM
  • classical monocyte: 292 nTPM
  • T-reg: 265 nTPM

Brain region

  • choroid plexus: 115 nTPM
  • white matter: 79 nTPM
  • cerebral cortex: 76 nTPM
  • spinal cord: 72 nTPM
  • hypothalamus: 71 nTPM
  • medulla oblongata: 69 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about HERPUD1.

Disease | GeneticClinVar

1 pathogenic / likely-pathogenic of 67 ClinVar records.

Conditions with pathogenic or likely-pathogenic variants.

Genetic constraint and essentialitygnomAD · DepMap

Does the body need this protein intact? Low LOEUF or a strong DepMap dependency means loss or blockade of the protein is likely to be felt.

gnomAD LOEUF (loss-of-function intolerance)
0.23
gnomAD pLI
1
gnomAD missense Z
0.8
DepMap mean gene effect
-0.11
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 4% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of HERPUD1 in the human serome: UniProt-annotated complex subunits plus reported interactors. Each links to its own Seroatlas record.

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads HERPUD1 as an antibody target. Whether an autoantibody or antibody against HERPUD1 could matter depends on whether native HERPUD1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

HERPUD1 is annotated as predominantly intracellular. Intracellular proteins are common autoantibody markers, becoming visible to the immune system after cell injury or altered processing, but are usually markers of disease rather than direct drivers.

Annotation status

The present source text does not explicitly label HERPUD1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/HERPUD1. Study-independent annotations aggregated from UniProt, Human Protein Atlas, PubMed, IEDB, Pfam, InterPro, Gene Ontology, AlphaFold, gnomAD, DepMap, ClinVar, TCGA. Catalog release seroatlas-reviewed-human-uniprot-20260313.

Seroatlas is the reference for exploring autoantibody and antibody serology at the human-protein level: the autoreactome and human serome, multiplex serology (HuProt, HuScan, VirScan, PhIP-Seq).

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