HOXB1
Homeobox protein Hox-B1
Also known as: HOX2, HOX2I, HXB1_HUMAN
Cross-references: UniProt · Ensembl · Human Protein Atlas · GeneCards · NCBI Gene
Protein identityUniProt · HPA
- UniProt accession
- P14653
- Gene
- HOXB1
- Ensembl
- ENSG00000120094
- Chromosome
- 17
- Canonical length
- 301 aa
- Protein class
- Disease related genes, Human disease related genes, Predicted intracellular proteins, Transcription factors
- Subcellular location
- Nucleoplasm
OverviewNCBI Gene
This gene belongs to the homeobox family of genes. The homeobox genes encode a highly conserved family of transcription factors that play an important role in morphogenesis in all multicellular organisms. Mammals possess four similar homeobox gene clusters, HOXA, HOXB, HOXC and HOXD, located on different chromosomes, consisting of 9 to 11 genes arranged in tandem. This gene is one of several homeobox HOXB genes located in a cluster on chromosome 17. [provided by RefSeq, Jul 2008]
Canonical amino-acid sequenceUniProt
301 residues, UniProt reviewed canonical sequence.
>P14653|HOXB1
1 MDYNRMNSFL EYPLCNRGPS AYSAHSAPTS FPPSSAQAVD SYASEGRYGG GLSSPAFQQN
61 SGYPAQQPPS TLGVPFPSSA PSGYAPAACS PSYGPSQYYP LGQSEGDGGY FHPSSYGAQL
121 GGLSDGYGAG GAGPGPYPPQ HPPYGNEQTA SFAPAYADLL SEDKETPCPS EPNTPTARTF
181 DWMKVKRNPP KTAKVSEPGL GSPSGLRTNF TTRQLTELEK EFHFNKYLSR ARRVEIAATL
241 ELNETQVKIW FQNRRMKQKK REREEGRVPP APPGCPKEAA GDASDQSTCT SPEASPSSVT
301 SLocalizationUniProt · AlphaFold · HPA
Whether an antibody against HOXB1 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)
- 0.66
- Highest tissue expression
- 0.4 nTPM
Expression across tissuesHPA
Tissue
- esophagus: 0.4 nTPM
- testis: 0.4 nTPM
- kidney: 0.2 nTPM
- vagina: 0.2 nTPM
- cervix: 0.1 nTPM
- skin: 0.1 nTPM
Single-cell type
- esophageal apical cells: 3.8 nCPM
- late primary spermatocytes: 2.5 nCPM
- esophageal suprabasal cells: 1.7 nCPM
- breast myoepithelial cells: 0.9 nCPM
- prostatic hillock cells: 0.6 nCPM
- renal collecting duct principal cells: 0.6 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
- spinal cord: 1.1 nTPM
- medulla oblongata: 0.9 nTPM
- amygdala: 0 nTPM
- basal ganglia: 0 nTPM
- cerebellum: 0 nTPM
- cerebral cortex: 0 nTPM
DiseaseUniProt · ClinVar · IEDB · PubMed
Four sources answering four different questions about HOXB1.
Disease | AllUniProt
Conditions HOXB1 is implicated in, by any mechanism.
- Facial paresis, hereditary congenital, 3 (HCFP3) MIM:614744
Disease | GeneticClinVar
3 pathogenic / likely-pathogenic of 67 ClinVar records.
Conditions with pathogenic or likely-pathogenic variants.
- Facial paresis, hereditary congenital, 3
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)
- 0.72
- gnomAD pLI
- 0.08
- gnomAD missense Z
- 0.86
- DepMap mean gene effect
- -0.02
- DepMap dependency class
- none
Cancer expressionTCGA
Across TCGA tumor cohorts, this protein is over-expressed in roughly 3% of surveyed tumor types (aggregate summary; per-cohort expression, alteration, and survival load in the interactive view).
OntologyGO
Biological processes
- anatomical structure formation involved in morphogenesis
- anterior/posterior pattern specification
- embryonic skeletal system morphogenesis
- facial nerve structural organization
- facial nucleus development
- pattern specification process
- positive regulation of transcription by RNA polymerase II
- regulation of DNA-templated transcription
- regulation of transcription by RNA polymerase II
- rhombomere 4 development
- rhombomere 5 development
Molecular functions
- DNA binding
- DNA-binding transcription activator activity, RNA polymerase II-specific
- DNA-binding transcription factor activity, RNA polymerase II-specific
- protein domain specific binding
- RNA polymerase II cis-regulatory region sequence-specific DNA binding
- RNA polymerase II transcription regulatory region sequence-specific DNA binding
- sequence-specific double-stranded DNA binding
Cellular components
Protein domainsUniProt · Pfam · InterPro
KeywordsUniProt
Antibody and autoantibody relevanceSeroatlas analysis
Seroatlas reads HOXB1 as an antibody target. Whether an autoantibody or antibody against HOXB1 could matter depends on whether native HOXB1 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.
HOXB1 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 HOXB1 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.
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