Hepatitis B virus cccDNA is formed through distinct repair processes of each strand.
Hepatitis B virus cccDNA is formed through distinct repair processes of each strand.
复制标题
DOI:
10.1038/s41467-021-21850-9
复制
发表时间:
2021-03-11
影响因子:
16.6
通讯作者:
Ploss A
中科院分区:
文献类型:
--
作者:
Wei L;Ploss A
Hepatitis B virus (HBV) is a highly contagious pathogen that afflicts over a third of the world’s population, resulting in close to a million deaths annually. The formation and persistence of the HBV covalently closed circular DNA (cccDNA) is the root cause of HBV chronicity. However, the detailed molecular mechanism of cccDNA formation from relaxed circular DNA (rcDNA) remains opaque. Here we show that the minus and plus-strand lesions of HBV rcDNA require different sets of human repair factors in biochemical repair systems. We demonstrate that the plus-strand repair resembles DNA lagging strand synthesis, and requires proliferating cell nuclear antigen (PCNA), the replication factor C (RFC) complex, DNA polymerase delta (POLδ), flap endonuclease 1 (FEN-1), and DNA ligase 1 (LIG1). Only FEN-1 and LIG1 are required for the repair of the minus strand. Our findings provide a detailed mechanistic view of how HBV rcDNA is repaired to form cccDNA in biochemical repair systems. HBV covalently closed circular DNA (cccDNA) enables and persists in chronic infection, but the molecular mechanism of its formation is unclear. Here, Wei and Ploss elucidate the detailed kinetics and biochemical steps by which the relaxed circular DNA is converted into cccDNA.
登录
查看更多内容
DOI:
10.20517/2394-5079.2016.05
发表时间:
2016
期刊:
Hepatoma research
影响因子:
--
作者:
Lamontagne RJ;Bagga S;Bouchard MJ
通讯作者:
Bouchard MJ
影响因子:
6.7
作者:
Kitamura K;Que L;Shimadu M;Koura M;Ishihara Y;Wakae K;Nakamura T;Watashi K;Wakita T;Muramatsu M
通讯作者:
Muramatsu M
影响因子:
14.9
作者:
Ganai RA;Zhang XP;Heyer WD;Johansson E
通讯作者:
Johansson E
影响因子:
2.7
作者:
Benjamini, Yoav;Krieger, Abba M.;Yekutieli, Daniel
通讯作者:
Yekutieli, Daniel
DOI:
10.1073/pnas.1409986111
发表时间:
2014-10-07
影响因子:
11.1
作者:
Koeniger, Christian;Wingert, Ida;Nassal, Michael
通讯作者:
Nassal, Michael