Seroatlas · Human Serome Atlas

NME4

Nucleoside diphosphate kinase, mitochondrial

Also known as: NDKM_HUMAN, NDPKD, nm23-H4, NM23H4

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

Protein identityUniProt · HPA

UniProt accession
O00746
Gene
NME4
Ensembl
ENSG00000103202
Chromosome
16
Canonical length
187 aa
Protein class
Enzymes, Metabolic proteins, Plasma proteins, Predicted intracellular proteins
Subcellular location
Mitochondria
Quaternary structure
Homohexamer

OverviewNCBI Gene

The nucleoside diphosphate (NDP) kinases (EC 2.7.4.6) are ubiquitous enzymes that catalyze transfer of gamma-phosphates, via a phosphohistidine intermediate, between nucleoside and dioxynucleoside tri- and diphosphates. The enzymes are products of the nm23 gene family, which includes NME4 (Milon et al., 1997 [PubMed 9099850]).[supplied by OMIM, May 2008]

Canonical amino-acid sequenceUniProt

187 residues, UniProt reviewed canonical sequence.

>O00746|NME4
     1  MGGLFWRSAL RGLRCGPRAP GPSLLVRHGS GGPSWTRERT LVAVKPDGVQ RRLVGDVIQR
    61  FERRGFTLVG MKMLQAPESV LAEHYQDLRR KPFYPALIRY MSSGPVVAMV WEGYNVVRAS
   121  RAMIGHTDSA EAAPGTIRGD FSVHISRNVI HASDSVEGAQ REIQLWFQSS ELVSWADGGQ
   181  HSSIHPA

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against NME4 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
0
Mean surface accessibility (rSASA)
0.39
Highest tissue expression
187 nTPM

Expression across tissuesHPA

Tissue

  • colon: 187 nTPM
  • liver: 172 nTPM
  • urinary bladder: 154 nTPM
  • prostate: 141 nTPM
  • adrenal gland: 134 nTPM
  • bone marrow: 120 nTPM

Single-cell type

  • erythrocyte progenitors: 373 nCPM
  • megakaryocytes: 260 nCPM
  • smooth muscle cells: 255 nCPM
  • hofbauer cells: 217 nCPM
  • decidual stromal cells: 205 nCPM
  • epididymal efferent duct absorptive cells: 194 nCPM

Immune cell

  • plasmacytoid DC: 58 nTPM
  • eosinophil: 40 nTPM
  • naive B-cell: 30 nTPM
  • memory B-cell: 28 nTPM
  • naive CD4 T-cell: 26 nTPM
  • myeloid DC: 18 nTPM

Brain region

  • medulla oblongata: 71 nTPM
  • hypothalamus: 55 nTPM
  • thalamus: 54 nTPM
  • pons: 53 nTPM
  • spinal cord: 50 nTPM
  • cerebral cortex: 49 nTPM

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)
1.57
gnomAD pLI
0
gnomAD missense Z
-0.74
DepMap mean gene effect
0.05
DepMap dependency class
none

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 5% 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 NME4 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 NME4 as an antibody target. Whether an autoantibody or antibody against NME4 could matter depends on whether native NME4 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

NME4 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 NME4 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/NME4. 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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