Seroatlas · Human Serome Atlas

NADSYN1

Glutamine-dependent NAD(+) synthetase

Also known as: FLJ10631, NADE_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q6IA69
Gene
NADSYN1
Ensembl
ENSG00000172890
Chromosome
11
Canonical length
706 aa
Protein class
Disease related genes, Enzymes, Human disease related genes, Metabolic proteins, Potential drug targets, Predicted intracellular proteins
Subcellular location
Golgi apparatus,Vesicles,Cytosol
Quaternary structure
Homohexamer

OverviewNCBI Gene

Nicotinamide adenine dinucleotide (NAD) is a coenzyme in metabolic redox reactions, a precursor for several cell signaling molecules, and a substrate for protein posttranslational modifications. NAD synthetase (EC 6.3.5.1) catalyzes the final step in the biosynthesis of NAD from nicotinic acid adenine dinucleotide (NaAD).[supplied by OMIM, Apr 2004]

Canonical amino-acid sequenceUniProt

706 residues, UniProt reviewed canonical sequence.

>Q6IA69|NADSYN1
     1  MGRKVTVATC ALNQWALDFE GNLQRILKSI EIAKNRGARY RLGPELEICG YGCWDHYYES
    61  DTLLHSFQVL AALVESPVTQ DIICDVGMPV MHRNVRYNCR VIFLNRKILL IRPKMALANE
   121  GNYRELRWFT PWSRSRHTEE YFLPRMIQDL TKQETVPFGD AVLVTWDTCI GSEICEELWT
   181  PHSPHIDMGL DGVEIITNAS GSHQVLRKAN TRVDLVTMVT SKNGGIYLLA NQKGCDGDRL
   241  YYDGCAMIAM NGSVFAQGSQ FSLDDVEVLT ATLDLEDVRS YRAEISSRNL AASRASPYPR
   301  VKVDFALSCH EDLLAPISEP IEWKYHSPEE EISLGPACWL WDFLRRSQQA GFLLPLSGGV
   361  DSAATACLIY SMCCQVCEAV RSGNEEVLAD VRTIVNQISY TPQDPRDLCG RILTTCYMAS
   421  KNSSQETCTR ARELAQQIGS HHISLNIDPA VKAVMGIFSL VTGKSPLFAA HGGSSRENLA
   481  LQNVQARIRM VLAYLFAQLS LWSRGVHGGL LVLGSANVDE SLLGYLTKYD CSSADINPIG
   541  GISKTDLRAF VQFCIQRFQL PALQSILLAP ATAELEPLAD GQVSQTDEED MGMTYAELSV
   601  YGKLRKVAKM GPYSMFCKLL GMWRHICTPR QVADKVKRFF SKYSMNRHKM TTLTPAYHAE
   661  NYSPEDNRFD LRPFLYNTSW PWQFRCIENQ VLQLERAEPQ SLDGVD

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against NADSYN1 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)
0.22
Highest tissue expression
64 nTPM

Expression across tissuesHPA

Tissue

  • bone marrow: 64 nTPM
  • spleen: 57 nTPM
  • esophagus: 55 nTPM
  • small intestine: 49 nTPM
  • liver: 49 nTPM
  • colon: 47 nTPM

Single-cell type

  • neutrophil progenitors: 102 nCPM
  • late spermatids: 94 nCPM
  • enterocytes: 82 nCPM
  • esophageal apical cells: 80 nCPM
  • esophageal suprabasal cells: 79 nCPM
  • colonocytes: 69 nCPM

Immune cell

  • myeloid DC: 31 nTPM
  • classical monocyte: 28 nTPM
  • intermediate monocyte: 25 nTPM
  • plasmacytoid DC: 23 nTPM
  • non-classical monocyte: 23 nTPM
  • total PBMC: 21 nTPM

Brain region

  • white matter: 28 nTPM
  • medulla oblongata: 25 nTPM
  • thalamus: 23 nTPM
  • pons: 22 nTPM
  • cerebral cortex: 22 nTPM
  • choroid plexus: 20 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about NADSYN1.

Disease | AllUniProt

Conditions NADSYN1 is implicated in, by any mechanism.

Disease | GeneticClinVar

15 pathogenic / likely-pathogenic of 177 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)
0.94
gnomAD pLI
0
gnomAD missense Z
0.71
DepMap mean gene effect
-0.04
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

Biological processes

Molecular functions

Cellular components

Protein domainsUniProt · Pfam · InterPro

KeywordsUniProt

InteractionsUniProt · HPA

Protein binding partners of NADSYN1 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 NADSYN1 as an antibody target. Whether an autoantibody or antibody against NADSYN1 could matter depends on whether native NADSYN1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

NADSYN1 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 NADSYN1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/NADSYN1. 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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