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 QYLKKFRLFKLocalizationUniProt · 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.
- Neurodevelopmental disorder with early-onset parkinsonism and behavioral abnormalities (NEDPBA) MIM:620747
Disease | GeneticClinVar
4 pathogenic / likely-pathogenic of 44 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Neurodevelopmental disorder with early-onset parkinsonism and behavioral abnormalities
- Parkinsonian disorder
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
- Peptidyl-tRNA hydrolase, PTH2
- Peptidyl-tRNA hydrolase II domain superfamily
- Peptidyl-tRNA hydrolase PTH2
- Putative peptidyl-tRNA hydrolase PTRHD1
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.
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