tRNA(Trp) + L-tryptophan + ATP <=> L-tryptophyl-tRNA(Trp) + AMP + diphosphate + H(+)
trna(trp) + l-tryptophan + atp <=> l-tryptophyl-trna(trp) + amp + diphosphate + h(+)
tRNA(Trp) + L-tryptophan + ATP <=> L-tryptophyl-tRNA(Trp) + AMP + diphosphate + H(+)
trna(trp) + l-tryptophan + atp <=> l-tryptophyl-trna(trp) + amp + diphosphate + h(+)