Mechanism of translesion synthesis past an equine estrogen-DNA adduct by Y-family DNA polymerases.
Mechanism of translesion synthesis past an equine estrogen-DNA adduct by Y-family DNA polymerases.
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Y 家族 DNA 聚合酶通过马雌激素-DNA 加合物的跨损伤合成机制。
DOI:
10.1016/j.jmb.2007.06.009
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发表时间:
2007
影响因子:
5.6
通讯作者:
Shibutani,Shinya
中科院分区:
文献类型:
--
作者:
Yasui,Manabu;Suzuki,Naomi;Liu,Xiaoping;Okamoto,Yoshinori;Kim,SungYeon;Laxmi,YRSantosh;Shibutani,Shinya
4-Hydroxyequilenin (4-OHEN)-dC is a major, potentially mutagenic DNA adduct induced by equine estrogens used for hormone replacement therapy. To study the miscoding property of 4-OHEN-dC and the involvement of Y-family human DNA polymerases (pols) η, κ and ι in that process, we incorporated 4-OHEN-dC into oligodeoxynucleotides and used them as templates in primer extension reactions catalyzed by pol η, κ and ι. Pol η inserted dAMP opposite 4-OHEN-dC, accompanied by lesser amounts of dCMP and dTMP incorporation and base deletion. Pol κ promoted base deletions as well as direct incorporation of dAMP and dCMP. Pol ι worked in conjunction with pol κ, but not with pol η, at a replication fork stalled by the adduct, resulting in increased dTMP incorporation. Our results provide a direct evidence that Y-family DNA pols can switch with one another during synthesis past the lesion. No direct incorporation of dGMP, the correct base, was observed with Y-family enzymes. The miscoding potency of 4-OHEN-dC may be associated with the development of reproductive cancers observed in women receiving hormone replacement therapy.
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DOI:
10.1021/bi048087e
发表时间:
2004
期刊:
Biochemistry.
影响因子:
--
作者:
Shibutani,Shinya;Suzuki,Naomi;Grollman,ArthurP
通讯作者:
Grollman,ArthurP
影响因子:
4.1
作者:
Shibutani,S
通讯作者:
Shibutani,S
DOI:
10.1021/bi981235e
发表时间:
1998
期刊:
Biochemistry.
影响因子:
--
作者:
Terashima,I;Suzuki,N;Dasaradhi,L;Tan,CK;Downey,KM;Shibutani,S
通讯作者:
Shibutani,S
影响因子:
4.1
作者:
Zhang,F;Swanson,SM;vanBreemen,RB;Liu,X;Yang,Y;Gu,C;Bolton,JL
通讯作者:
Bolton,JL
DOI:
10.1073/pnas.90.3.1122
发表时间:
1993-02-01
影响因子:
11.1
作者:
MORIYA, M
通讯作者:
MORIYA, M