Crystal structure of RNase H3-substrate complex reveals parallel evolution of RNA/DNA hybrid recognition.
Crystal structure of RNase H3-substrate complex reveals parallel evolution of RNA/DNA hybrid recognition.
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DOI:
10.1093/nar/gku615
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发表时间:
2014-08
影响因子:
14.9
通讯作者:
Nowotny M
中科院分区:
文献类型:
--
作者:
Figiel M;Nowotny M
RNases H participate in the replication and maintenance of genomic DNA. RNase H1 cleaves the RNA strand of RNA/DNA hybrids, and RNase H2 in addition hydrolyzes the RNA residue of RNA–DNA junctions. RNase H3 is structurally closely related to RNases H2, but its biochemical properties are similar to type 1 enzymes. Its unique N-terminal substrate-binding domain (N-domain) is related to TATA-binding protein. Here, we report the first crystal structure of RNase H3 in complex with its RNA/DNA substrate. Just like RNases H1, type 3 enzyme recognizes the 2′-OH groups of the RNA strand and detects the DNA strand by binding a phosphate group and inducing B-form conformation. Moreover, the N-domain recognizes RNA and DNA in a manner that is highly similar to the hybrid-binding domain of RNases H1. Our structure demonstrates a remarkable example of parallel evolution of the elements used in the specific recognition of RNA and DNA.
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影响因子:
64.5
作者:
Reijns MA;Rabe B;Rigby RE;Mill P;Astell KR;Lettice LA;Boyle S;Leitch A;Keighren M;Kilanowski F;Devenney PS;Sexton D;Grimes G;Holt IJ;Hill RE;Taylor MS;Lawson KA;Dorin JR;Jackson AP
通讯作者:
Jackson AP
影响因子:
16
作者:
Sparks, Justin L.;Chon, Hyongi;Cerritelli, Susana M.;Kunkel, Thomas A.;Johansson, Erik;Crouch, Robert J.;Burgers, Peter M.
通讯作者:
Burgers, Peter M.
影响因子:
14.9
作者:
Chon H;Sparks JL;Rychlik M;Nowotny M;Burgers PM;Crouch RJ;Cerritelli SM
通讯作者:
Cerritelli SM
影响因子:
16
作者:
Rychlik MP;Chon H;Cerritelli SM;Klimek P;Crouch RJ;Nowotny M
通讯作者:
Nowotny M
影响因子:
11.4
作者:
Nowotny, Marcin;Cerritelli, Susana M.;Yang, Wei
通讯作者:
Yang, Wei