The HOX11 gene encodes a DNA-binding nuclear transcription factor belonging to a distinct family of homeobox genes.
A translocation involving human chromosome 10, band q24, in a subset of T-cell acute leukemias disrupts a region surrounding the putative oncogene HOX11, which encodes a protein with a homeodomain. The HOX11 protein binds to a specific DNA sequence, it localizes to the cell nucleus, and it transactivates transcription of a reporter gene linked to a cis-regulatory element, suggesting that HOX11 functions in vivo as a positive transcription activator. PCR analysis shows that the HOX11 homeodomain is a member of a distinct class of homeodomains, representatives of which occur in murine and Drosophila genomes. These all contain a threonine residue in place of the more common isoleucine or valine in helix 3 of the homeodomain. HOX11 therefore appears to belong to a family of DNA-binding transactivators of transcription.
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Medical Research Council, Laboratory of Molecular Biology, Cambridge, United Kingdom.
Sanchez-Garcia
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Rabbitts
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D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D001665:Binding Sites; D002467:Cell Nucleus / Q000378:metabolism; D016384:Consensus Sequence; D004268:DNA-Binding Proteins / Q000235:genetics*; D005801:Genes, Homeobox; D017344:Genes, Insect; D018398:Homeodomain Proteins; D006801:Humans; D051379:Mice; D008969:Molecular Sequence Data; D005810:Multigene Family; D016297:Mutagenesis, Site-Directed; D009687:Nuclear Proteins / Q000235:genetics*; D009838:Oligodeoxyribonucleotides / Q000737:chemistry; D015513:Oncogene Proteins / Q000235:genetics*; D011518:Proto-Oncogene Proteins; D011994:Recombinant Proteins / Q000378:metabolism; D013329:Structure-Activity Relationship; D014157:Transcription Factors / Q000235:genetics*; D015533:Transcriptional Activation; D014162:Transfection
D004268:DNA-Binding Proteins; D018398:Homeodomain Proteins; D009687:Nuclear Proteins; D009838:Oligodeoxyribonucleotides; D015513:Oncogene Proteins; D011518:Proto-Oncogene Proteins; D011994:Recombinant Proteins; C487378:Tlx1 protein, mouse; D014157:Transcription Factors; C071250:TLX1 protein, human