ID 4.3.1.30 DE dTDP-4-amino-4,6-dideoxy-D-glucose ammonia-lyase. CA dTDP-4-amino-4,6-dideoxy-alpha-D-glucose + AH2 + S-adenosyl-L-methionine CA = dTDP-3-dehydro-4,6-dideoxy-alpha-D-glucose + 5'-deoxyadenosine + CA L-methionine + A + NH4(+) + H(+). CC -!- The enzyme, which is a member of the 'AdoMet radical' (radical SAM) CC family, is involved in biosynthesis of TDP-alpha-D-desosamine. CC -!- The reaction starts by the transfer of an electron from the reduced CC form of the enzyme's [4Fe-4S] cluster to S-adenosyl-L-methionine, CC spliting it into methionine and the radical 5-deoxyadenosin-5'-yl, CC which attacks the sugar substrate. DR Q9ZGH1, DESII_STRVZ; //