Seroatlas · Human Serome Atlas

FETUB

Fetuin-B

Also known as: FETUB_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
Q9UGM5
Gene
FETUB
Ensembl
ENSG00000090512
Chromosome
3
Canonical length
382 aa
Protein class
Plasma proteins, Predicted intracellular proteins, Predicted secreted proteins
Subcellular location
Vesicles
Secretome location
Secreted to blood

OverviewNCBI Gene

The protein encoded by this gene is a member of the fetuin family, part of the cystatin superfamily of cysteine protease inhibitors. Fetuins have been implicated in several diverse functions, including osteogenesis and bone resorption, regulation of the insulin and hepatocyte growth factor receptors, and response to systemic inflammation. This protein may be secreted by cells. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

382 residues, UniProt reviewed canonical sequence.

>Q9UGM5|FETUB
     1  MGLLLPLALC ILVLCCGAMS PPQLALNPSA LLSRGCNDSD VLAVAGFALR DINKDRKDGY
    61  VLRLNRVNDA QEYRRGGLGS LFYLTLDVLE TDCHVLRKKA WQDCGMRIFF ESVYGQCKAI
   121  FYMNNPSRVL YLAAYNCTLR PVSKKKIYMT CPDCPSSIPT DSSNHQVLEA ATESLAKYNN
   181  ENTSKQYSLF KVTRASSQWV VGPSYFVEYL IKESPCTKSQ ASSCSLQSSD SVPVGLCKGS
   241  LTRTHWEKFV SVTCDFFESQ APATGSENSA VNQKPTNLPK VEESQQKNTP PTDSPSKAGP
   301  RGSVQYLPDL DDKNSQEKGP QEAFPVHLDL TTNPQGETLD ISFLFLEPME EKLVVLPFPK
   361  EKARTAECPG PAQNASPLVL PP

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against FETUB 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
Secreted
Secreted
Yes
Transmembrane segments
0
Mean surface accessibility (rSASA)
0.36
Highest tissue expression
219 nTPM

Expression across tissuesHPA

Tissue

  • liver: 219 nTPM
  • esophagus: 8.2 nTPM
  • pancreas: 6.1 nTPM
  • tonsil: 5.5 nTPM
  • skin: 2.5 nTPM
  • vagina: 2.3 nTPM

Single-cell type

  • esophageal apical cells: 70 nCPM
  • hepatocytes: 56 nCPM
  • early spermatids: 9.1 nCPM
  • late spermatids: 8.3 nCPM
  • kupffer cells: 5.1 nCPM
  • suprabasal keratinocytes: 3.6 nCPM

Immune cell

  • basophil: 0 nTPM
  • classical monocyte: 0 nTPM
  • eosinophil: 0 nTPM
  • gdT-cell: 0 nTPM
  • intermediate monocyte: 0 nTPM
  • MAIT T-cell: 0 nTPM

Brain region

  • cerebral cortex: 0.4 nTPM
  • white matter: 0.4 nTPM
  • amygdala: 0.2 nTPM
  • medulla oblongata: 0.2 nTPM
  • basal ganglia: 0.1 nTPM
  • hippocampal formation: 0.1 nTPM

DiseaseUniProt · ClinVar · IEDB · PubMed

Four sources answering four different questions about FETUB.

Disease | ImmuneIEDB

Conditions an epitope on FETUB was assayed in.

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)
1.37
gnomAD pLI
0
gnomAD missense Z
-0.24
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

Antibody and autoantibody relevanceSeroatlas analysis

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

FETUB is annotated as secreted, so native FETUB circulates and is directly accessible to antibodies. Secreted and cell-surface proteins are the autoantibody targets most likely to act like drugs, blocking or depleting the native protein.

Annotation status

The present source text does not explicitly label FETUB as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

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