Seroatlas · Human Serome Atlas

FBH1

F-box DNA helicase 1

Also known as: FBH1_HUMAN, Fbx18, FBXO18, FLJ14590

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

Protein identityUniProt · HPA

UniProt accession
Q8NFZ0
Gene
FBH1
Ensembl
ENSG00000134452
Chromosome
10
Canonical length
1043 aa
Protein class
Disease related genes, Enzymes, Plasma proteins, Potential drug targets, Predicted membrane proteins

OverviewNCBI Gene

This gene encodes a member of the F-box protein family, members of which are characterized by an approximately 40 amino acid motif, the F-box. The F-box proteins constitute one of the four subunits of ubiquitin protein ligase complex called SCFs (SKP1-cullin-F-box), which function in phosphorylation-dependent ubiquitination. The F-box proteins are divided into three classes: Fbws containing WD-40 domains, Fbls containing leucine-rich repeats, and Fbxs containing either different protein-protein interaction modules or no recognizable motifs. The protein encoded by this gene belongs to the Fbx class. It contains an F-box motif and seven conserved helicase motifs, and has both DNA-dependent ATPase and DNA unwinding activities. Alternatively spliced transcript variants encoding distinct isoforms have been identified for this gene. [provided by RefSeq, Jul 2008]

Canonical amino-acid sequenceUniProt

1043 residues, UniProt reviewed canonical sequence.

>Q8NFZ0|FBH1
     1  MRRFKRKHLT AIDCQHLARS HLAVTQPFGQ RWTNRDPNHG LYPKPRTKRG SRGQGSQRCI
    61  PEFFLAGKQP CTNDMAKSNS VGQDSCQDSE GDMIFPAESS CALPQEGSAG PGSPGSAPPS
   121  RKRSWSSEEE SNQATGTSRW DGVSKKAPRH HLSVPCTRPR EARQEAEDST SRLSAESGET
   181  DQDAGDVGPD PIPDSYYGLL GTLPCQEALS HICSLPSEVL RHVFAFLPVE DLYWNLSLVC
   241  HLWREIISDP LFIPWKKLYH RYLMNEEQAV SKVDGILSNC GIEKESDLCV LNLIRYTATT
   301  KCSPSVDPER VLWSLRDHPL LPEAEACVRQ HLPDLYAAAG GVNIWALVAA VVLLSSSVND
   361  IQRLLFCLRR PSSTVTMPDV TETLYCIAVL LYAMREKGIN ISNRIHYNIF YCLYLQENSC
   421  TQATKVKEEP SVWPGKKTIQ LTHEQQLILN HKMEPLQVVK IMAFAGTGKT STLVKYAEKW
   481  SQSRFLYVTF NKSIAKQAER VFPSNVICKT FHSMAYGHIG RKYQSKKKLN LFKLTPFMVN
   541  SVLAEGKGGF IRAKLVCKTL ENFFASADEE LTIDHVPIWC KNSQGQRVMV EQSEKLNGVL
   601  EASRLWDNMR KLGECTEEAH QMTHDGYLKL WQLSKPSLAS FDAIFVDEAQ DCTPAIMNIV
   661  LSQPCGKIFV GDPHQQIYTF RGAVNALFTV PHTHVFYLTQ SFRFGVEIAY VGATILDVCK
   721  RVRKKTLVGG NHQSGIRGDA KGQVALLSRT NANVFDEAVR VTEGEFPSRI HLIGGIKSFG
   781  LDRIIDIWIL LQPEEERRKQ NLVIKDKFIR RWVHKEGFSG FKRYVTAAED KELEAKIAVV
   841  EKYNIRIPEL VQRIEKCHIE DLDFAEYILG TVHKAKGLEF DTVHVLDDFV KVPCARHNLP
   901  QLPHFRVESF SEDEWNLLYV AVTRAKKRLI MTKSLENILT LAGEYFLQAE LTSNVLKTGV
   961  VRCCVGQCNN AIPVDTVLTM KKLPITYSNR KENKGGYLCH SCAEQRIGPL AFLTASPEQV
  1021  RAMERTVENI VLPRHEALLF LVF

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against FBH1 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)
0.34
Highest tissue expression
42 nTPM

Expression across tissuesHPA

Tissue

  • heart muscle: 42 nTPM
  • adrenal gland: 38 nTPM
  • thymus: 38 nTPM
  • fallopian tube: 37 nTPM
  • blood vessel: 36 nTPM
  • spleen: 34 nTPM

Single-cell type

  • sertoli cells: 129 nCPM
  • erythrocyte progenitors: 122 nCPM
  • choroid plexus epithelial cells: 120 nCPM
  • plasma cells: 113 nCPM
  • adrenal cortex cells: 111 nCPM
  • renal collecting duct intercalated cells: 75 nCPM

Immune cell

  • T-reg: 6.2 nTPM
  • NK-cell: 4.7 nTPM
  • naive B-cell: 4.1 nTPM
  • plasmacytoid DC: 4 nTPM
  • eosinophil: 3.3 nTPM
  • memory B-cell: 3.1 nTPM

Brain region

  • choroid plexus: 39 nTPM
  • basal ganglia: 27 nTPM
  • thalamus: 25 nTPM
  • cerebral cortex: 25 nTPM
  • white matter: 24 nTPM
  • midbrain: 23 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)
0.48
gnomAD pLI
0
DepMap mean gene effect
0
DepMap dependency class
selective

Cancer expressionTCGA

Across TCGA tumor cohorts, this protein is over-expressed in roughly 9% 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 FBH1 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 FBH1 as an antibody target. Whether an autoantibody or antibody against FBH1 could matter depends on whether native FBH1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

FBH1 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 FBH1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/FBH1. 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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