Molecular cloning and characterization of a novel retinoblastoma-binding protein

被引:62
作者
Fusco, C
Reymond, A
Zervos, AS
机构
[1] Harvard Univ, Sch Med, Massachusetts Gen Hosp, Cutaneous Biol Res Ctr, Charlestown, MA 02129 USA
[2] Harvard Univ, Sch Med, Massachusetts Gen Hosp, Dept Mol Biol, Charlestown, MA 02129 USA
关键词
D O I
10.1006/geno.1998.5368
中图分类号
Q81 [生物工程学(生物技术)]; Q93 [微生物学];
学科分类号
071005 ; 0836 ; 090102 ; 100705 ;
摘要
We describe the isolation and characterization of a novel cDNA encoding a polypeptide that interacts in a yeast two-hybrid system as well as in mammalian cells with the retinoblastoma (RB) protein. This new protein, which we call Rim, consists of 897 amino acids, has two leucine zipper motifs, and has a LECEE sequence previously identified as an RE-binding domain. Rim also has an E1A/CtBP-binding motif and four putative nuclear localization signals. Rim mRNA is expressed ubiquitously at low levels in all human adult tissues tested and at much higher levels in several tumor cell lines. The Rim gene (HG;MW-approved symbol RBBP8) is localized on human chromosome 18q11.2. (C) 1998 Academic Press
引用
收藏
页码:351 / 358
页数:8
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