ID   2.8.4.5
DE   tRNA (N(6)-L-threonylcarbamoyladenosine(37)-C(2))-methylthiotransferase.
AN   methylthio-threonylcarbamoyl-adenosine transferase B.
CA   [sulfur carrier]-SH + AH2 + N(6)-L-threonylcarbamoyladenosine(37) in tRNA
CA   + 2 S-adenosyl-L-methionine = 2-methylsulfanyl-N(6)-L-
CA   threonylcarbamoyladenosine(37) in tRNA + 5'-deoxyadenosine + [sulfur
CA   carrier]-H + A + 2 H(+) + L-methionine + S-adenosyl-L-homocysteine.
CC   -!- The enzyme, which is a member of the S-adenosyl-L-methionine-
CC       dependent radical (radical AdoMet) enzymes superfamily, binds two
CC       [4Fe-4S] clusters as well as the transferred sulfur.
CC   -!- The sulfur donor is believed to be one of the [4Fe-4S] clusters,
CC       which is sacrificed in the process, so that in vitro the reaction is
CC       a single turnover.
CC   -!- The identity of the electron donor is not known.
DR   O29021, AMTAB_ARCFU;  Q58277, AMTAB_METJA;  O26914, AMTAB_METTH;
DR   Q9UXX9, AMTAB_PYRAB;  O59545, AMTAB_PYRHO;  Q8MXQ7, CDKAL_CAEEL;
DR   Q6PG34, CDKAL_DANRE;  Q7K4W1, CDKAL_DROME;  Q291H5, CDKAL_DROPS;
DR   Q5VV42, CDKAL_HUMAN;  Q91WE6, CDKAL_MOUSE;  Q6NS26, CDKAL_XENLA;
DR   Q6P4Y0, CDKAL_XENTR;  O66772, MTAB_AQUAE ;  P54462, MTAB_BACSU ;
DR   Q9Z874, MTAB_CHLPN ;  Q49573, MTAB_MALIO ;  Q9ZDB6, MTAB_RICPR ;
DR   Q9WZT7, MTAB_THEMA ;  O83293, MTAB_TREPA ;
//