THE XENOPUS YB3-PROTEIN BINDS THE B-BOX ELEMENT OF THE CLASS-III PROMOTER

被引:28
作者
COHEN, I [1 ]
REYNOLDS, WF [1 ]
机构
[1] LA JOLLA CANC RES FDN,10901 N TORREY PINES RD,LA JOLLA,CA 92037
关键词
D O I
10.1093/nar/19.17.4753
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
We have isolated a Xenopus cDNA encoding the YB3 protein which binds specifically to the B box promoter element of class III genes. Northern analysis shows YB3 is expressed in a variety of adult tissues. Fractionation of oocyte S150 extracts demonstrates YB3 is present in phosphocellulose fraction IIIC, as well as in the fraction isolated by B box DNA affinity chromatography. Silver staining indicates that YB3, or a protein of the same mobility in SDS gels, is the most abundant component in either fraction.
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页码:4753 / 4759
页数:7
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