Reaction catalyzed by E1 SAMP-activating enzyme (6.2.1.55)
ATP
+
+
[UbaA]-L-cysteine
=
AMP
+
+
N6-[[SAMP1]-Gly-Gly]-[[UbaA]-L-cysteine]
ATP
+
[SAMP1]-Gly-Gly
+
[UbaA]-L-cysteine
=
AMP
+
diphosphate
+
N6-[[SAMP1]-Gly-Gly]-[[UbaA]-L-cysteine]
