label: [small archaeal modifier protein]-C-terminal Gly-Gly-AMP + diphosphate => [small archaeal modifier protein]-C-terminal Gly-Gly + ATP + H(+)
label_lc: [small archaeal modifier protein]-c-terminal gly-gly-amp + diphosphate => [small archaeal modifier protein]-c-terminal gly-gly + atp + h(+)