Chemistry and biology of the copper chelator methanobactin.
Chemistry and biology of the copper chelator methanobactin.
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DOI:
10.1021/cb2003913
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发表时间:
2012-02-17
影响因子:
4
通讯作者:
Rosenzweig, Amy C.
中科院分区:
文献类型:
--
作者:
Kenney, Grace E.;Rosenzweig, Amy C.
Methanotrophic bacteria, organisms that oxidize methane, produce a small copper chelating molecule called methanobactin (Mb). Mb binds Cu(I) with high affinity and is hypothesized to mediate copper acquisition from the environment. Recent advances in Mb characterization include revision of the chemical structure of Mb from Methylosinus trichosporium OB3b and further investigation of its biophysical properties. In addition, Mb production by several other methanotroph strains has been investigated and preliminary characterization suggests diversity in chemical composition. Initial clues into Mb biosynthesis have been obtained by identification of a putative precursor gene in the M. trichosporium OB3b genome. Finally, direct uptake of intact Mb into the cytoplasm of M. trichosporium OB3b cells has been demonstrated and studies of the transport mechanism have been initiated. Taken together, these advances represent significant progress and set the stage for exciting new research directions.
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