From Wikipedia, the free encyclopedia
Jump to: navigation, search
Homeobox B8
Symbols HOXB8 ; HOX2; HOX2D; Hox-2.4
External IDs OMIM142963 MGI96189 HomoloGene7768 GeneCards: HOXB8 Gene
RNA expression pattern
PBB GE HOXB8 221278 at tn.png
PBB GE HOXB7 204778 x at tn.png
More reference expression data
Species Human Mouse
Entrez 3218 15416
Ensembl ENSG00000120068 ENSMUSG00000056648
UniProt P17481 P09632
RefSeq (mRNA) NM_024016 NM_010461
RefSeq (protein) NP_076921 NP_034591
Location (UCSC) Chr 17:
48.61 – 48.61 Mb
Chr 11:
96.28 – 96.29 Mb
PubMed search [1] [2]

Homeobox protein Hox-B8 is a protein that in humans is encoded by the HOXB8 gene.[1][2][3]


This gene is a member of the Antp homeobox family and encodes a nuclear protein with a homeobox DNA-binding domain. It is included in a cluster of Homeobox B genes located on chromosome 17. The encoded protein functions as a sequence-specific transcription factor that is involved in development. Increased expression of this gene is associated with colorectal cancer. Mice that have had the murine ortholog (see Homology (biology) § Orthology) of this gene knocked out exhibit an excessive pathologic grooming behavior. This behavior is similar to the behavior of humans suffering from the obsessive-compulsive spectrum disorder trichotillomania.[3]

Transplantation of normal (wild-type) bone marrow into a Hoxb8 mutant mouse results is a reduction of compulsive grooming.[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: HOXB8 homeobox B8". 
  4. ^ Chen SK, Tvrdik P, Peden E, Cho S, Wu S, Spangrude G, Capecchi MR (May 2010). "Hematopoietic origin of pathological grooming in Hoxb8 mutant mice". Cell 141 (5): 775–85. doi:10.1016/j.cell.2010.03.055. PMC 2894573. PMID 20510925. 

Further reading[edit]

  • Peverali FA, D'Esposito M, Acampora D, Bunone G, Negri M, Faiella A, Stornaiuolo A, Pannese M, Migliaccio E, Simeone A (Oct 1990). "Expression of HOX homeogenes in human neuroblastoma cell culture lines". Differentiation; Research in Biological Diversity 45 (1): 61–9. doi:10.1111/j.1432-0436.1990.tb00458.x. PMID 1981366. 
  • Giampaolo A, Acampora D, Zappavigna V, Pannese M, D'Esposito M, Carè A, Faiella A, Stornaiuolo A, Russo G, Simeone A (Jun 1989). "Differential expression of human HOX-2 genes along the anterior-posterior axis in embryonic central nervous system". Differentiation; Research in Biological Diversity 40 (3): 191–7. doi:10.1111/j.1432-0436.1989.tb00598.x. PMID 2570724. 
  • Acampora D, D'Esposito M, Faiella A, Pannese M, Migliaccio E, Morelli F, Stornaiuolo A, Nigro V, Simeone A, Boncinelli E (Dec 1989). "The human HOX gene family". Nucleic Acids Research 17 (24): 10385–402. doi:10.1093/nar/17.24.10385. PMC 335308. PMID 2574852. 
  • Boncinelli E, Acampora D, Pannese M, D'Esposito M, Somma R, Gaudino G, Stornaiuolo A, Cafiero M, Faiella A, Simeone A (1990). "Organization of human class I homeobox genes". Genome / National Research Council Canada = Génome / Conseil National De Recherches Canada 31 (2): 745–56. doi:10.1139/g89-133. PMID 2576652. 
  • Apiou F, Flagiello D, Cillo C, Malfoy B, Poupon MF, Dutrillaux B (1996). "Fine mapping of human HOX gene clusters". Cytogenetics and Cell Genetics 73 (1-2): 114–5. doi:10.1159/000134320. PMID 8646877. 
  • Vider BZ, Zimber A, Hirsch D, Estlein D, Chastre E, Prevot S, Gespach C, Yaniv A, Gazit A (Mar 1997). "Human colorectal carcinogenesis is associated with deregulation of homeobox gene expression". Biochemical and Biophysical Research Communications 232 (3): 742–8. doi:10.1006/bbrc.1997.6364. PMID 9126347. 
  • Dias Neto E, Correa RG, Verjovski-Almeida S, Briones MR, Nagai MA, da Silva W, Zago MA, Bordin S, Costa FF, Goldman GH, Carvalho AF, Matsukuma A, Baia GS, Simpson DH, Brunstein A, de Oliveira PS, Bucher P, Jongeneel CV, O'Hare MJ, Soares F, Brentani RR, Reis LF, de Souza SJ, Simpson AJ (Mar 2000). "Shotgun sequencing of the human transcriptome with ORF expressed sequence tags". Proceedings of the National Academy of Sciences of the United States of America 97 (7): 3491–6. doi:10.1073/pnas.97.7.3491. PMC 16267. PMID 10737800. 
  • Fujino T, Yamazaki Y, Largaespada DA, Jenkins NA, Copeland NG, Hirokawa K, Nakamura T (Jul 2001). "Inhibition of myeloid differentiation by Hoxa9, Hoxb8, and Meis homeobox genes". Experimental Hematology 29 (7): 856–63. doi:10.1016/S0301-472X(01)00655-5. PMID 11438208. 
  • Knoepfler PS, Sykes DB, Pasillas M, Kamps MP (Sep 2001). "HoxB8 requires its Pbx-interaction motif to block differentiation of primary myeloid progenitors and of most cell line models of myeloid differentiation". Oncogene 20 (39): 5440–8. doi:10.1038/sj.onc.1204710. PMID 11571641. 
  • Greer JM, Capecchi MR (Jan 2002). "Hoxb8 is required for normal grooming behavior in mice". Neuron 33 (1): 23–34. doi:10.1016/S0896-6273(01)00564-5. PMID 11779477. 
  • Kosaki K, Kosaki R, Suzuki T, Yoshihashi H, Takahashi T, Sasaki K, Tomita M, McGinnis W, Matsuo N (Feb 2002). "Complete mutation analysis panel of the 39 human HOX genes". Teratology 65 (2): 50–62. doi:10.1002/tera.10009. PMID 11857506. 

External links[edit]

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