Schizosaccharomyces pombe cdc4+ gene encodes a novel EF-hand protein essential for cytokinesis.
Schizosaccharomyces pombe cdc4+ gene encodes a novel EF-hand protein essential for cytokinesis.
复制标题
schizosaccharomyces pombe cdc4+基因编码一种对细胞因子必不可少的新型EF手蛋白。
DOI:
10.1083/jcb.130.3.651
复制
发表时间:
1995-08
影响因子:
7.8
通讯作者:
GOULD, KL
中科院分区:
文献类型:
--
作者:
MCCOLLUM, D;BALASUBRAMANIAN, MK;PELCHER, LE;HEMMINGSEN, SM;GOULD, KL
Schizosaccharomyces pombe cells divide by medial fission. One class of cell division mutants (cdc), the late septation mutants, defines four genes: cdc3, cdc4, cdc8, and cdc12 (Nurse, P., P. Thuriaux, and K. Nasmyth. 1976. Mol. & Gen. Genet. 146:167-178). We have cloned and characterized the cdc4 gene and show that the predicted gene product. Cdc4p, is a 141-amino acid polypeptide that is similar in sequence to EF-hand proteins including myosin light chains, calmodulin, and troponin C. Two temperature-sensitive lethal alleles, cdc4-8 and cdc4- 31, accumulate multiple nuclei and multiple improper F-actin rings and septa but fail to complete cytokinesis. Deletion of cdc4 also results in a lethal terminal phenotype characterized by multinucleate, elongated cells that fail to complete cytokinesis. Sequence comparisons suggest that Cdc4p may be a member of a new class of EF-hand proteins. Cdc4p localizes to a ringlike structure in the medial region of cells undergoing cytokinesis. Thus, Cdc4p appears to be an essential component of the F-actin contractile ring. We find that Cdc4 protein forms a complex with a 200-kD protein which can be cross-linked to UTP, a property common to myosin heavy chains. Together these results suggest that Cdc4p may be a novel myosin light chain.
登录
查看更多内容
影响因子:
7.8
作者:
Fujiwara, K;Pollard, T D
通讯作者:
Pollard, T D
影响因子:
64.5
作者:
NEUFELD, TP;RUBIN, GM
通讯作者:
RUBIN, GM
影响因子:
64.5
作者:
POLLENZ, RS;CHEN, TLL;CHISHOLM, RL
通讯作者:
CHISHOLM, RL
影响因子:
56.9
作者:
KNECHT, DA;LOOMIS, WF
通讯作者:
LOOMIS, WF
影响因子:
7.8
作者:
Mabuchi, I;Okuno, M
通讯作者:
Okuno, M