DORSAL VENTRAL PATTERNING IN DROSOPHILA - DNA-BINDING OF SNAIL PROTEIN TO THE SINGLE-MINDED GENE

被引:91
作者
KASAI, Y [1 ]
NAMBU, JR [1 ]
LIEBERMAN, PM [1 ]
CREWS, ST [1 ]
机构
[1] UNIV CALIF LOS ANGELES,INST MOLEC BIOL,DEPT BIOL,LOS ANGELES,CA 90024
关键词
TRANSCRIPTIONAL CONTROL; ZINC FINGERS; CENTRAL NERVOUS SYSTEM DEVELOPMENT;
D O I
10.1073/pnas.89.8.3414
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
The Drosophila snail gene is required for proper mesodermal development. Genetic studies suggest that it functions by repressing adjacent ectodermal gene expression including that of the single-minded (sim) gene. The snail gene encodes a protein with a zinc-finger motif, and here we report that the snail gene product is a sequence-specific DNA binding protein. The snail protein recognizes a 14-base-pair consensus sequence that is found nine times in a 2.8-kilobase sim regulatory region. These results provide evidence for the direct control of sim transcription by snail.
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页码:3414 / 3418
页数:5
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