期刊
BIOCHIMICA ET BIOPHYSICA ACTA-GENE STRUCTURE AND EXPRESSION
卷 1574, 期 2, 页码 157-163出版社
ELSEVIER
DOI: 10.1016/S0167-4781(01)00367-0
关键词
cell cycle; ik3-1; ik3-2; cdk
A cDNA coding for ik3-2 (designated as ik3-2 front an interactor-2 with cdk3) was cloned by cross-hybridization with ik3-1 and RT-PCR. Analysis of amino acid sequence indicated that ik3-2 has the C-terminal cyclin-box-like region highly homologous to that of ik3-1 (identity in amino acids: 78%), On the other hand, the remainder of ik3-2 gene is not so similar to that of ik3-1. There are several regions other than the C-terminal cyclin-box-like region that are conserved between ik3-1 and ik3-2. In vivo binding assay indicated that like ik3-1, ik3-2 binds to cdk3. cdk5, and c-abl, although ik3-2 binds to cdk3 weakly as compared with ik3-1. The C-terminal cyclin-box-like region of ik3-2 (123 amino acids) is able to be associated with cdk5. Accordingly, ik3-2 is very similar to ik3-1 concerning its molecular interaction with other molecules, suggesting that ik3-2 function in the same biological field as ik3-1. Northern blot analysis indicated that ik3-2 is expressed ubiquitously all over tissues. (C) 2002 Elsevier Science B.V. All rights reserved.
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