Structural and functional characterization of CalS11, a TDP-rhamnose 3'-O-methyltransferase involved in calicheamicin biosynthesis.
Structural and functional characterization of CalS11, a TDP-rhamnose 3'-O-methyltransferase involved in calicheamicin biosynthesis.
复制标题
DOI:
10.1021/cb400068k
复制
发表时间:
2013-07-19
影响因子:
4
通讯作者:
Thorson JS
中科院分区:
文献类型:
--
作者:
Singh S;Chang A;Helmich KE;Bingman CA;Wrobel RL;Beebe ET;Makino S;Aceti DJ;Dyer K;Hura GL;Sunkara M;Morris AJ;Phillips GN Jr;Thorson JS
Sugar methyltransferases (MTs) are an important class of tailoring enzymes which catalyze the transfer of a methyl group from S-adenosyl-L-methionine to sugar-based N-, C- and O- nucleophiles. While sugar N- and C-MTs involved in natural product biosynthesis have been found to act on sugar nucleotide substrates prior to a subsequent glycosyltransferase reaction, corresponding sugar O-methylation reactions studied thus far occur after the glycosyltransfer reaction. Herein we report the first in vitro characterization using 1H-13C-gHSQC with isotopically-labeled substrates and the X-ray structure determination at 1.55 Å resolution of the TDP-3′-O-rhamnose-methyltransferase CalS11 from Micromonospora echinospora. This study highlights a unique NMR-based methyltransferase assay, implicates CalS11 to be a metal and general acid/base-dependent O-methyltransferase and, as a first crystal structure for a TDP-hexose-O-methyltransferase, presents a new template for mechanistic studies and/or engineering.
登录
查看更多内容
影响因子:
2.9
作者:
Burgie, E. Sethe;Holden, Hazel M.
通讯作者:
Holden, Hazel M.
DOI:
10.1007/978-1-60327-331-2_12
发表时间:
2010-01-01
期刊:
CELL-FREE PROTEIN PRODUCTION: METHODS AND PROTOCOLS
影响因子:
--
作者:
Makino, Shin-ichi;Goren, Michael A.;Markley, John L.
通讯作者:
Markley, John L.
DOI:
10.1007/978-1-59745-196-3_4
发表时间:
2009
期刊:
Methods in molecular biology (Clifton, N.J.)
影响因子:
--
作者:
Blommel PG;Martin PA;Seder KD;Wrobel RL;Fox BG
通讯作者:
Fox BG
DOI:
10.1107/s0907444904019158
发表时间:
2004-12-01
影响因子:
2.2
作者:
Emsley, P;Cowtan, K
通讯作者:
Cowtan, K
影响因子:
2.8
作者:
Ramos, Angelina;Lombo, Felipe;Salas, Jose A.
通讯作者:
Salas, Jose A.