A mouse homologue of the Drosophila tumour-suppressor gene l(2)gl controlled by Hox-C8 in vivo.
The homeobox is a 183-base-pair DNA sequence originally found in Drosophila segmentation and homeotic genes. In Drosophila, homeotic genes are clustered in the Antennapedia and Bithorax complexes, collectively called the homeotic gene complex (HOM-C). In the mouse genome, about 40 homeobox genes (Hox) are clustered in four chromosomal regions (Hox A to D). The Hox genes are arranged in the same order and have the same anteroposterior pattern of expression as their structural homologue in the HOM-C, suggesting that they control mouse pattern formation in the same way that HOM-C members do in Drosophila. Homeobox gene products are believed to be transcription factors that regulate expression of target genes. A few candidate target genes have been identified in Drosophila by various approaches but the Hox gene targets are poorly understood, mostly because of limitations in the available approaches. Here we identify several candidate Hox gene targets, including a mouse homologue of the Drosophila tumour-suppressor gene l(2)gl, by immunopurification of DNA sequences bound to a Hox protein in native chromatin.
Tomotsune
D
D
Department of Molecular Biology, School of Science, Nagoya University, Japan.
Shoji
H
H
Wakamatsu
Y
Y
Kondoh
H
H
Takahashi
N
N
D000595:Amino Acid Sequence; D000818:Animals; D001483:Base Sequence; D003598:Cytoskeletal Proteins; D004247:DNA; D004268:DNA-Binding Proteins / Q000235:genetics*; D004330:Drosophila; D029721:Drosophila Proteins; D004622:Embryo, Mammalian; D004625:Embryo, Nonmammalian; D005786:Gene Expression Regulation; D005801:Genes, Homeobox; D016147:Genes, Tumor Suppressor; D018398:Homeodomain Proteins; D007301:Insect Hormones / Q000235:genetics; D007814:Larva; D051379:Mice; D008807:Mice, Inbred BALB C; D008813:Mice, Inbred ICR; D008969:Molecular Sequence Data; D011506:Proteins / Q000235:genetics*; D016415:Sequence Alignment; D013116:Spinal Cord / Q000378:metabolism; D025521:Tumor Suppressor Proteins
D003598:Cytoskeletal Proteins; D004268:DNA-Binding Proteins; D029721:Drosophila Proteins; D018398:Homeodomain Proteins; C489816:Hoxc8 protein, mouse; D007301:Insect Hormones; C082939:Llgl1 protein, mouse; D011506:Proteins; D025521:Tumor Suppressor Proteins; C081435:l(2)gl protein, Drosophila; D004247:DNA