The microbial methylamine metabolism is characterized by the use of the 22
nd amino acid pyrrolysine and several complex cofactors. The production and incorporation of pyrrolysine into proteins in
Escherichia coli was established. The 3D structures of four participating methyltransferases, MtgB, MtcB, MtbA and MtgA, were determined by X-ray crystallography. Substrate- and cofactor-bound complex structures allowed detailed mechanistic analyses of methyl transfer to cobalamin, coenzyme M and tetrahydrofolate.
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The microbial methylamine metabolism is characterized by the use of the 22
nd amino acid pyrrolysine and several complex cofactors. The production and incorporation of pyrrolysine into proteins in
Escherichia coli was established. The 3D structures of four participating methyltransferases, MtgB, MtcB, MtbA and MtgA, were determined by X-ray crystallography. Substrate- and cofactor-bound complex structures allowed detailed mechanistic analyses of methyl transfer to cobalamin, coenzyme M and tetrah...
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