Seroatlas · Human Serome Atlas

NT5C1A

Cytosolic 5'-nucleotidase 1A

Also known as: 5NT1A_HUMAN, CN-I, CN-IA, CN1, CN1A, MGC119199, MGC119201

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

Protein identityUniProt · HPA

UniProt accession
Q9BXI3
Gene
NT5C1A
Ensembl
ENSG00000116981
Chromosome
1
Canonical length
368 aa
Protein class
Enzymes, Metabolic proteins, Predicted intracellular proteins

OverviewNCBI Gene

Cytosolic nucleotidases, such as NT5C1A, dephosphorylate nucleoside monophosphates (Hunsucker et al., 2001 [PubMed 11133996]).[supplied by OMIM, Mar 2008]

Canonical amino-acid sequenceUniProt

368 residues, UniProt reviewed canonical sequence.

>Q9BXI3|NT5C1A
     1  MEPGQPREPQ EPREPGPGAE TAAAPVWEEA KIFYDNLAPK KKPKSPKPQN AVTIAVSSRA
    61  LFRMDEEQQI YTEQGVEEYV RYQLEHENEP FSPGPAFPFV KALEAVNRRL RELYPDSEDV
   121  FDIVLMTNNH AQVGVRLINS INHYDLFIER FCMTGGNSPI CYLKAYHTNL YLSADAEKVR
   181  EAIDEGIAAA TIFSPSRDVV VSQSQLRVAF DGDAVLFSDE SERIVKAHGL DRFFEHEKAH
   241  ENKPLAQGPL KGFLEALGRL QKKFYSKGLR LECPIRTYLV TARSAASSGA RALKTLRSWG
   301  LETDEALFLA GAPKGPLLEK IRPHIFFDDQ MFHVAGAQEM GTVAAHVPYG VAQTPRRTAP
   361  AKQAPSAQ

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against NT5C1A 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)
0.3
Highest tissue expression
73 nTPM

Expression across tissuesHPA

Tissue

  • skeletal muscle: 73 nTPM
  • tongue: 29 nTPM
  • cerebellum: 8.1 nTPM
  • heart muscle: 6.5 nTPM
  • pancreas: 2.8 nTPM
  • cerebral cortex: 2.6 nTPM

Single-cell type

  • adrenal medulla cells: 32 nCPM
  • myonuclei: 27 nCPM
  • cardiomyocytes: 13 nCPM
  • retinal amacrine cells: 8.1 nCPM
  • hepatic stellate cells: 6.5 nCPM
  • vascular smooth muscle cells: 5 nCPM

Immune cell

  • basophil: 0.1 nTPM
  • neutrophil: 0.1 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM

Brain region

  • cerebral cortex: 14 nTPM
  • cerebellum: 14 nTPM
  • midbrain: 12 nTPM
  • pons: 9.6 nTPM
  • hypothalamus: 9.5 nTPM
  • thalamus: 9.5 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about NT5C1A.

Disease | AutoantibodyPubMed

Conditions in which antibodies against NT5C1A are reported. Each links to that disease's full target list.

Showing 5 of 7 — disease pages carrying at least 10 antigens.

ReferencesPubMed · IEDB

Publications for NT5C1A from three distinct lines of evidence, kept separate because they answer different questions: whether antibodies are directed at the protein, whether a B-cell epitope has been mapped on it, and whether a T-cell epitope has. Each is labelled with its source.

Reference: AutoantibodyPubMed

43 publications

Show 20 more of 43 total

Sources: PubMed — antigen-level antibody evidence from a custom retrieval. Records matching a controlled set of autoantibody terms (the MeSH descriptors Autoantibodies and Autoantigens, with title and abstract term variants) were obtained through NCBI E-utilities, and their titles and abstracts parsed for constructions that direct an antibody at a named protein rather than for co-occurrence. Captured names were resolved against UniProt nomenclature and each antigen adjudicated individually against the source text. Bibliographic records from PubMed and MeSH, U.S. National Library of Medicine; citation metrics from NIH iCite (Hutchins et al., PLoS Biology 2016). Titles link to PubMed; abstracts are not reproduced here. The NLM does not endorse this analysis.

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)
0.96
gnomAD pLI
0
gnomAD missense Z
0.87
DepMap mean gene effect
0.01
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% 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

Antibody and autoantibody relevanceSeroatlas analysis

Seroatlas reads NT5C1A as an antibody target. Whether an autoantibody or antibody against NT5C1A could matter depends on whether native NT5C1A is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

NT5C1A 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 NT5C1A as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/NT5C1A. 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).

Loading the interactive Seroatlas protein explorer...