Seroatlas · Human Serome Atlas

PTRHD1

Putative peptidyl-tRNA hydrolase PTRHD1

Also known as: C2orf79, LOC391356, PTRD1_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q6GMV3
Gene
PTRHD1
Ensembl
ENSG00000184924
Chromosome
2
Canonical length
140 aa
Protein class
Enzymes, Predicted intracellular proteins
Subcellular location
Nucleoplasm

OverviewNCBI Gene

This gene encodes the enzyme peptidyl-tRNA hydrolase. Peptidyl-tRNA hydrolases perform the essential function of recycling peptidyl-tRNAs. Mutations in this gene are associated with autosomal-recessive intellectual disability and parkinsonism. [provided by RefSeq, May 2017]

Canonical amino-acid sequenceUniProt

140 residues, UniProt reviewed canonical sequence.

>Q6GMV3|PTRHD1
     1  MHRGVGPAFR VVRKMAASGA EPQVLVQYLV LRKDLSQAPF SWPAGALVAQ ACHAATAALH
    61  THRDHPHTAA YLQELGRMRK VVLEAPDETT LKELAETLQQ KNIDHMLWLE QPENIATCIA
   121  LRPYPKEEVG QYLKKFRLFK

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against PTRHD1 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
Intracellular
Secreted
No
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.37
Highest tissue expression
25 nTPM

Expression across tissuesHPA

Tissue

  • adrenal gland: 25 nTPM
  • amygdala: 25 nTPM
  • skeletal muscle: 23 nTPM
  • midbrain: 22 nTPM
  • cerebral cortex: 22 nTPM
  • spinal cord: 21 nTPM

Single-cell type

  • late primary spermatocytes: 332 nCPM
  • esophageal suprabasal cells: 267 nCPM
  • esophageal apical cells: 246 nCPM
  • cytotrophoblasts: 239 nCPM
  • late spermatids: 228 nCPM
  • oocytes: 221 nCPM

Immune cell

  • plasmacytoid DC: 149 nTPM
  • myeloid DC: 145 nTPM
  • memory B-cell: 97 nTPM
  • total PBMC: 97 nTPM
  • classical monocyte: 91 nTPM
  • T-reg: 85 nTPM

Brain region

  • choroid plexus: 21 nTPM
  • white matter: 19 nTPM
  • thalamus: 19 nTPM
  • pons: 18 nTPM
  • spinal cord: 18 nTPM
  • hypothalamus: 18 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about PTRHD1.

Disease | AllUniProt

Conditions PTRHD1 is implicated in, by any mechanism.

Disease | GeneticClinVar

4 pathogenic / likely-pathogenic of 44 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)
1.94
gnomAD pLI
0
gnomAD missense Z
-0.19
DepMap mean gene effect
0
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 6% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).

OntologyGO

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads PTRHD1 as an antibody target. Whether an autoantibody or antibody against PTRHD1 could matter depends on whether native PTRHD1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

PTRHD1 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 PTRHD1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/PTRHD1. 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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