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(+)