Seroatlas · Human Serome Atlas

PURA

Transcriptional activator protein Pur-alpha

Also known as: PUR-ALPHA, PUR1, PURA_HUMAN, PURALPHA

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

Protein identityUniProt · HPA

UniProt accession
Q00577
Gene
PURA
Ensembl
ENSG00000185129
Chromosome
5
Canonical length
322 aa
Protein class
Cancer-related genes, Disease related genes, Human disease related genes, Plasma proteins, Predicted intracellular proteins, Transcription factors
Quaternary structure
Homodimer

OverviewNCBI Gene

This gene product is a sequence-specific, single-stranded DNA-binding protein. It binds preferentially to the single strand of the purine-rich element termed PUR, which is present at origins of replication and in gene flanking regions in a variety of eukaryotes from yeasts through humans. Thus, it is implicated in the control of both DNA replication and transcription. Deletion of this gene has been associated with myelodysplastic syndrome and acute myelogenous leukemia. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

322 residues, UniProt reviewed canonical sequence.

>Q00577|PURA
     1  MADRDSGSEQ GGAALGSGGS LGHPGSGSGS GGGGGGGGGG GGSGGGGGGA PGGLQHETQE
    61  LASKRVDIQN KRFYLDVKQN AKGRFLKIAE VGAGGNKSRL TLSMSVAVEF RDYLGDFIEH
   121  YAQLGPSQPP DLAQAQDEPR RALKSEFLVR ENRKYYMDLK ENQRGRFLRI RQTVNRGPGL
   181  GSTQGQTIAL PAQGLIEFRD ALAKLIDDYG VEEEPAELPE GTSLTVDNKR FFFDVGSNKY
   241  GVFMRVSEVK PTYRNSITVP YKVWAKFGHT FCKYSEEMKK IQEKQREKRA ACEQLHQQQQ
   301  QQQEETAAAT LLLQGEEEGE ED

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against PURA 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)
0.45
Highest tissue expression
13 nTPM

Expression across tissuesHPA

Tissue

  • parathyroid gland: 13 nTPM
  • cerebral cortex: 12 nTPM
  • retina: 12 nTPM
  • kidney: 11 nTPM
  • thyroid gland: 11 nTPM
  • spinal cord: 9.7 nTPM

Single-cell type

  • somatotrophs: 279 nCPM
  • lactotrophs: 247 nCPM
  • thyrotrophs: 223 nCPM
  • corticotrophs: 195 nCPM
  • smooth muscle cells: 167 nCPM
  • gonadotrophs: 156 nCPM

Immune cell

  • basophil: 6.4 nTPM
  • NK-cell: 5.2 nTPM
  • naive B-cell: 3.7 nTPM
  • eosinophil: 3.4 nTPM
  • naive CD8 T-cell: 3.4 nTPM
  • memory CD8 T-cell: 3.2 nTPM

Brain region

  • amygdala: 140 nTPM
  • thalamus: 137 nTPM
  • medulla oblongata: 131 nTPM
  • spinal cord: 131 nTPM
  • white matter: 130 nTPM
  • pons: 128 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about PURA.

Disease | AllUniProt

Conditions PURA is implicated in, by any mechanism.

Disease | GeneticClinVar

220 pathogenic / likely-pathogenic of 628 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)
0.34
gnomAD pLI
0.94
gnomAD missense Z
3.37
DepMap mean gene effect
-0.04
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 PURA 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 PURA as an antibody target. Whether an autoantibody or antibody against PURA could matter depends on whether native PURA is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

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

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