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 NLocalizationUniProt · 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
- endoplasmic reticulum calcium ion homeostasis
- endoplasmic reticulum unfolded protein response
- ERAD pathway
- negative regulation of endoplasmic reticulum stress-induced intrinsic apoptotic signaling pathway
- negative regulation of intrinsic apoptotic signaling pathway
- positive regulation of ERAD pathway
- positive regulation of ubiquitin-dependent protein catabolic process
- protein targeting to ER
- regulation of ERAD pathway
- regulation of protein ubiquitination
- response to endoplasmic reticulum stress
- response to unfolded protein
- retrograde protein transport, ER to cytosol
- ubiquitin-dependent protein catabolic process
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.
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