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Homeobox A13
Available structures
PDB Ortholog search: PDBe, RCSB
Symbols HOXA13 ; HOX1; HOX1J
External IDs OMIM142959 MGI96173 HomoloGene73882 GeneCards: HOXA13 Gene
RNA expression pattern
PBB GE HOXA13 gnf1h00031 at tn.png
More reference expression data
Species Human Mouse
Entrez 3209 15398
Ensembl ENSG00000106031 ENSMUSG00000038203
UniProt P31271 Q62424
RefSeq (mRNA) NM_000522 NM_008264
RefSeq (protein) NP_000513 NP_032290
Location (UCSC) Chr 7:
27.19 – 27.2 Mb
Chr 6:
52.26 – 52.26 Mb
PubMed search [1] [2]

Homeobox protein Hox-A13 is a protein that in humans is encoded by the HOXA13 gene.[1][2][3]


In vertebrates, the genes encoding the class of transcription factors called homeobox genes are found in clusters named A, B, C, and D on four separate chromosomes. Expression of these proteins is spatially and temporally regulated during embryonic development. This gene is part of the A cluster on chromosome 7 and encodes a DNA-binding transcription factor which may regulate gene expression, morphogenesis, and differentiation.[3]

Clinical significance[edit]

Expansion of a polyalanine tract in the encoded protein can cause hand-foot-genital syndrome , also known as hand-foot-uterus syndrome.[4]

See also[edit]


  1. ^ McAlpine PJ, Shows TB (Jul 1990). "Nomenclature for human homeobox genes". Genomics 7 (3): 460. doi:10.1016/0888-7543(90)90186-X. PMID 1973146. 
  2. ^ Scott MP (Nov 1992). "Vertebrate homeobox gene nomenclature". Cell 71 (4): 551–3. doi:10.1016/0092-8674(92)90588-4. PMID 1358459. 
  3. ^ a b "Entrez Gene: HOXA13 homeobox A13". 
  4. ^ Innis, Jeffrey W (2006-07-11). Hand-Foot-Genital Syndrome. NCBI Bookshelf, GeneReviews. University of Washington, Seattle. 

Further reading[edit]

External links[edit]

This article incorporates text from the United States National Library of Medicine, which is in the public domain.