Conservation of structure and function of DNA replication protein A in the trypanosomatid Crithidia fasciculata.
Conservation of structure and function of DNA replication protein A in the trypanosomatid Crithidia fasciculata.
复制标题
锥虫 Crithidia fasciculata 中 DNA 复制蛋白 A 的结构和功能的保守性。
DOI:
10.1073/pnas.89.21.10227
复制
发表时间:
1992
影响因子:
11.1
通讯作者:
Ray,DS
中科院分区:
文献类型:
--
作者:
Brown,GW;Melendy,TE;Ray,DS
Human replication protein A (RP-A) is a three-subunit protein that is required for simian virus 40 (SV40) replication in vitro. The trypanosome homologue of RP-A has been purified from Crithidia fasciculata. It is a 1:1:1 complex of three polypeptides of 51, 28, and 14 kDa, binds single-stranded DNA via the large subunit, and is localized within the nucleus. C. fasciculata RP-A substitutes for human RP-A in the large tumor antigen-dependent unwinding of the SV40 origin of replication and stimulates both DNA synthesis and DNA priming by human DNA polymerase alpha/primase, but it does not support efficient SV40 DNA replication in vitro. This extraordinary conservation of structure and function between human and trypanosome RP-A suggests that the mechanism of DNA replication, at both the initiation and the elongation level, is conserved in organisms that diverged from the main eukaryotic lineage very early in evolution.
影响因子:
7.4
作者:
P. Hughes;E. Fanning;M. Kohiyama
通讯作者:
M. Kohiyama
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
A. Revzin
通讯作者:
A. Revzin