THE TRANSCRIPTIONAL CONTROL PROTEINS C-MYB AND V-MYB CONTAIN A BASIC REGION DNA-BINDING MOTIF

被引:13
作者
CARR, MD [1 ]
MOTT, RF [1 ]
机构
[1] NATL INST MED RES,MATH BIOL LAB,LONDON NW7 1AA,ENGLAND
关键词
MYB; BASIC REGION DNA BINDING MOTIF;
D O I
10.1016/0014-5793(91)80498-R
中图分类号
Q5 [生物化学]; Q7 [分子生物学];
学科分类号
071010 ; 081704 ;
摘要
A class of transcriptional control proteins, typified by c-Myb, are characterised by a highly conserved N-terminal DNA binding domain, which is composed of either 2 or 3 imperfect repeats of about 52 amino acids. A sequence homology search of the SWISSPROT protein sequence data bank with this region from mouse c-Myb has allowed us to identify an area near the C-terminus of repeat 2 that contains a short sequence motif, known as the basic region, which forms the DNA binding site in both leucine zipper and helix-loop-helix transcription factors. We therefore propose that this region of repeat 2 and the homologous part of repeat 3 will form the Myb DNA binding site.
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页码:293 / 294
页数:2
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