label: L-histidyl-[RNA ligase] + GTP <=> N(pros)-(5'-guanosyl-phosphono)-L-histidyl-[RNA ligase] + diphosphate
label_lc: l-histidyl-[rna ligase] + gtp <=> n(pros)-(5'-guanosyl-phosphono)-l-histidyl-[rna ligase] + diphosphate