Interactions between helicase and primase are crucial for DNA replication in the enteropathogen Clostridium difficile
Interactions between helicase and primase are crucial for DNA replication in the enteropathogen Clostridium difficile
复制标题
解旋酶和引物酶之间的相互作用对于肠道病原体艰难梭菌中的 DNA 复制至关重要
DOI:
10.1101/071829
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发表时间:
2016
期刊:
影响因子:
--
通讯作者:
Van Eijk E
中科院分区:
文献类型:
--
作者:
Van Eijk E
DNA replication is an essential and conserved process in all domains of life and may serve as a target for the development of new antimicrobials. However, such developments are hindered by a limited understanding of DNA replication in pathogenic micro-organisms.Clostridium difficileis the main cause of health-care associated diarrhea and its DNA replication machinery is virtually uncharacterized. We identified the replicative helicase (CD3657), the helicase loader ATPase (CD3654) and primase (CD1454) ofC. difficileand reconstitute helicase and primase activityin vitro. We demonstrate a direct and ATP-dependent interaction between the helicase loader and the helicase. We find that helicase activity is dependent on the presence of primasein vitro. The trinucleotide specificity of primase, which we find to be determined by a single lysine residue, is similar to extreme thermophileAquifex aeolicusbut the presence of helicase allows more efficientde novosynthesis of RNA primers from non-preferred trinucleotides. Thus, helicase-primase interactions constitute a crucial aspect of DNA replication initiation inC. difficileand helicase loading and activation in this organism differs critically from that of the Gram-positive model organismBacillus subtilis.
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影响因子:
5.6
作者:
Zhang, WK;Carneiro, MJVM;Turner, IJ;Allen, S;Roberts, CJ;Soultanas, P
通讯作者:
Soultanas, P
影响因子:
4.8
作者:
E. Wahle;R. Lasken;A. Kornberg
通讯作者:
A. Kornberg
影响因子:
3.6
作者:
Koepsell, Scott A.;Larson, Marilynn A.;Griep, Mark A.
通讯作者:
Griep, Mark A.
影响因子:
5.6
作者:
A. Haroniti;Christopher Anderson;Zara A. Doddridge;L. Gardiner;C. Roberts;S. Allen;P. Soultanas
通讯作者:
P. Soultanas
DOI:
10.1016/s0021-9258(17)41829-1
发表时间:
1994-02
期刊:
The Journal of biological chemistry
影响因子:
--
作者:
K. Tõugu;H. Peng;K. Marians
通讯作者:
K. Tõugu;H. Peng;K. Marians