Seroatlas · Human Serome Atlas

HOXD8

Homeobox protein Hox-D8

Also known as: HOX4, HOX4E, HXD8_HUMAN

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

Protein identityUniProt · HPA

UniProt accession
P13378
Gene
HOXD8
Ensembl
ENSG00000175879
Chromosome
2
Canonical length
290 aa
Protein class
Predicted intracellular proteins, Transcription factors

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 HOXD genes located in a cluster on chromosome 2. Deletions that remove the entire HOXD gene cluster or the 5' end of this cluster have been associated with severe limb and genital abnormalities. In addition to effects during embryogenesis, this particular gene may also play a role in adult urogenital tract function. Alternate splicing results in multiple transcript variants.[provided by RefSeq, Dec 2010]

Canonical amino-acid sequenceUniProt

290 residues, UniProt reviewed canonical sequence.

>P13378|HOXD8
     1  MSSYFVNPLY SKYKAAAAAA AAAGEAINPT YYDCHFAPEV GGRHAAAAAA LQLYGNSAAG
    61  FPHAPPQAHA HPHPSPPPSG TGCGGREGRG QEYFHPGGGS PAAAYQAAPP PPPHPPPPPP
   121  PPPCGGIACH GEPAKFYGYD NLQRQPIFTT QQEAELVQYP DCKSSSGNIG EDPDHLNQSS
   181  SPSQMFPWMR PQAAPGRRRG RQTYSRFQTL ELEKEFLFNP YLTRKRRIEV SHALALTERQ
   241  VKIWFQNRRM KWKKENNKDK FPVSRQEVKD GETKKEAQEL EEDRAEGLTN

LocalizationUniProt · AlphaFold · HPA

Whether an antibody against HOXD8 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)
0.64
Highest tissue expression
94 nTPM

Expression across tissuesHPA

Tissue

  • epididymis: 94 nTPM
  • kidney: 71 nTPM
  • ovary: 37 nTPM
  • seminal vesicle: 23 nTPM
  • adrenal gland: 19 nTPM
  • endometrium: 19 nTPM

Single-cell type

  • late primary spermatocytes: 166 nCPM
  • epididymal principal cells: 143 nCPM
  • early spermatids: 95 nCPM
  • lymphatic endothelial cells: 88 nCPM
  • distal convoluted tubule cells: 82 nCPM
  • epididymal efferent duct ciliated cells: 56 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

  • white matter: 12 nTPM
  • spinal cord: 8.6 nTPM
  • medulla oblongata: 3.3 nTPM
  • pons: 0.7 nTPM
  • cerebral cortex: 0.1 nTPM
  • midbrain: 0.1 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)
0.85
gnomAD pLI
0.11
gnomAD missense Z
-1.42
DepMap mean gene effect
-0.07
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 HOXD8 as an antibody target. Whether an autoantibody or antibody against HOXD8 could matter depends on whether native HOXD8 is physically reachable, whether the body needs it intact, and whether it acts in a disease-relevant tissue.

HOXD8 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 HOXD8 as an autoantigen. Seroatlas presents hypothesis context only and does not manufacture a known-serology claim.

Canonical record: https://seroatlas.com/gene/HOXD8. 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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