The Schizosaccharomyces pombe dim1+ Gene Interacts with the Anaphase-Promoting Complex or Cyclosome (APC/C) Component lid1+ and Is Required for APC/C Function

The Schizosaccharomyces pombe dim1+ Gene Interacts with the Anaphase-Promoting Complex or Cyclosome (APC/C) Component lid1+ and Is Required for APC/C Function
复制标题

粟酒裂殖酵母 dim1 基因与后期促进复合物或环体 (APC/C) 成分 lit1 相互作用,并且是 APC/C 功能所必需的

DOI:
--
复制
发表时间:
1999
影响因子:
5.3
通讯作者:
K. Gould
K. Gould
中科院分区:
生物学2区
文献类型:
--
作者:
Lynne D. Berry;A. Feoktistova;Melanie D. Wright;K. Gould

文献摘要

参考文献

被引文献

相似文献

摘要粟酒裂殖酵母dim 1+基因是进入有丝分裂和染色体分离所必需的。为了进一步了解dim 1 p的功能,我们对温度敏感的dim 1 -35突变体和分离的lid(dim 1 -35中的致死突变体)进行了合成致死筛选。在这里,我们描述了温度敏感的lid 1 - 6突变体。在36°C的限制性温度下,lid 1 - 6突变体细胞以类似于cut 4和cut 9突变体的“切割”表型停滞。一个表位标记的版本的lid 1 p是一个多蛋白的p20 S复合物的组成部分;在这个复合物中的lid 1 p的存在取决于functionalcut 9+。lid 1 p-myc与包括cut 9 p和nuc 2 p在内的几种其他蛋白质共免疫沉淀,并且cut 9 p在20 S复合物中的存在取决于lid 1+的活性。此外,lid 1+功能是cut 2 p的多泛素化所必需的,cut 2 p是一种后期促进复合物或细胞周期体(APC/C)靶点。因此,lid 1 p是S的一个组成部分。pombe APC/C在dim 1突变体中,lid 1 p和APC/C复合物的丰度显著下降,APC/C靶标的泛素化被消除。这些数据表明,dim 1 p的至少一个作用是维持或建立APC/C的稳态水平。
ABSTRACT The Schizosaccharomyces pombe dim1 + gene is required for entry into mitosis and for chromosome segregation during mitosis. To further understand dim1p function, we undertook a synthetic lethal screen with the temperature-sensitive dim1-35 mutant and isolated lid (for lethal in dim1-35) mutants. Here, we describe the temperature-sensitive lid1-6mutant. At the restrictive temperature of 36°C, lid1-6mutant cells arrest with a “cut” phenotype similar to that ofcut4 and cut9 mutants. An epitope-tagged version of lid1p is a component of a multiprotein ∼20S complex; the presence of lid1p in this complex depends upon functionalcut9 +. lid1p-myc coimmunoprecipitates with several other proteins, including cut9p and nuc2p, and the presence of cut9p in a 20S complex depends upon the activity oflid1 +. Further, lid1 +function is required for the multiubiquitination of cut2p, an anaphase-promoting complex or cyclosome (APC/C) target. Thus, lid1p is a component of the S. pombe APC/C. In dim1mutants, the abundances of lid1p and the APC/C complex decline significantly, and the ubiquitination of an APC/C target is abolished. These data suggest that at least one role of dim1p is to maintain or establish the steady-state level of the APC/C.
DOI: 10.1126/science.279.5354.1219
发表时间: 1998-02
期刊: Science
影响因子: 56.9
作者:
Hongtao Yu;Jan-Michael Peters;Randall W. King;A. M. Page;Philip Hieter;Marc W. Kirschner
通讯作者: Hongtao Yu;Jan-Michael Peters;Randall W. King;A. M. Page;Philip Hieter;Marc W. Kirschner
DOI: --
发表时间: 1994-03
期刊: Genetics
影响因子: 3.3
作者:
J. Keeney;J. Boeke
通讯作者: J. Keeney;J. Boeke
DOI: --
发表时间: 1990-11
影响因子: 4
作者:
S. Sazer;Steven W. Sherwood
通讯作者: S. Sazer;Steven W. Sherwood
DOI: 10.1016/0955-0674(95)80031-x
发表时间: 1995-04-01
影响因子: 7.5
作者:
HOCHSTRASSER, M
通讯作者: HOCHSTRASSER, M
DOI: 10.1002/j.1460-2075.1994.tb06752.x
发表时间: 1994-09-15
期刊: EMBO JOURNAL
影响因子: 11.4
作者:
LAMB, JR;MICHAUD, WA;HIETER, PA
通讯作者: HIETER, PA