label: L-glutaminyl-[protein] + L-lysyl-[protein] => [protein]-L-lysyl-N(6)-5-L-glutamyl-[protein] + NH4(+)
label_lc: l-glutaminyl-[protein] + l-lysyl-[protein] => [protein]-l-lysyl-n(6)-5-l-glutamyl-[protein] + nh4(+)