NADK
NAD kinase
Also known as: FLJ13052, NADK_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- O95544
- Gene
- NADK
- Ensembl
- ENSG00000008130
- Chromosome
- 1
- Canonical length
- 446 aa
- Protein class
- Enzymes, Metabolic proteins, Predicted intracellular proteins
- Subcellular location
- Nucleoplasm,Cytosol
OverviewNCBI Gene
NADK catalyzes the transfer of a phosphate group from ATP to NAD to generate NADP, which in its reduced form acts as an electron donor for biosynthetic reactions (Lerner et al., 2001 [PubMed 11594753]).[supplied by OMIM, Mar 2008]
Canonical amino-acid sequenceUniProt
446 residues, UniProt reviewed canonical sequence.
>O95544|NADK
1 MEMEQEKMTM NKELSPDAAA YCCSACHGDE TWSYNHPIRG RAKSRSLSAS PALGSTKEFR
61 RTRSLHGPCP VTTFGPKACV LQNPQTIMHI QDPASQRLTW NKSPKSVLVI KKMRDASLLQ
121 PFKELCTHLM EENMIVYVEK KVLEDPAIAS DESFGAVKKK FCTFREDYDD ISNQIDFIIC
181 LGGDGTLLYA SSLFQGSVPP VMAFHLGSLG FLTPFSFENF QSQVTQVIEG NAAVVLRSRL
241 KVRVVKELRG KKTAVHNGLG ENGSQAAGLD MDVGKQAMQY QVLNEVVIDR GPSSYLSNVD
301 VYLDGHLITT VQGDGVIVST PTGSTAYAAA AGASMIHPNV PAIMITPICP HSLSFRPIVV
361 PAGVELKIML SPEARNTAWV SFDGRKRQEI RHGDSISITT SCYPLPSICV RDPVSDWFES
421 LAQCLHWNVR KKQAHFEEEE EEEEEGLocalizationUniProt · AlphaFold · HPA
Whether an antibody against NADK 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)
- 0.39
- Highest tissue expression
- 127 nTPM
Expression across tissuesHPA
Tissue
- liver: 127 nTPM
- bone marrow: 95 nTPM
- spleen: 89 nTPM
- adrenal gland: 78 nTPM
- adipose tissue: 51 nTPM
- blood vessel: 48 nTPM
Single-cell type
- neutrophils: 342 nCPM
- neutrophil progenitors: 191 nCPM
- pdcs: 67 nCPM
- monocyte progenitors: 49 nCPM
- monocytes: 47 nCPM
- syncytiotrophoblasts: 34 nCPM
Immune cell
- neutrophil: 508 nTPM
- eosinophil: 330 nTPM
- non-classical monocyte: 163 nTPM
- intermediate monocyte: 159 nTPM
- classical monocyte: 141 nTPM
- basophil: 84 nTPM
Brain region
- choroid plexus: 33 nTPM
- cerebral cortex: 31 nTPM
- thalamus: 31 nTPM
- basal ganglia: 30 nTPM
- hypothalamus: 29 nTPM
- medulla oblongata: 28 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)
- 0.99
- gnomAD pLI
- 0
- gnomAD missense Z
- 1.88
- DepMap mean gene effect
- -0.11
- DepMap dependency class
- selective
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
- ATP metabolic process
- NAD+ metabolic process
- NADP+ biosynthetic process
- phosphorylation
- positive regulation of insulin secretion involved in cellular response to glucose stimulus
Molecular functions
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
InteractionsUniProt · HPA
Protein binding partners of NADK 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 NADK as an antibody target. Whether an autoantibody or antibody against NADK could matter depends on whether native NADK is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
NADK 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 NADK as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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