L-tryptophan:oxygen 2'-oxidoreductase (side-chain-cleaving), TSO I, TSO II, TSO activity, indole-3-alkane alpha-hydroxylase activity, indolyl-3-alkan alpha-hydroxylase activity, tryptophan side chain oxidase II, tryptophan side chain oxidase activity, tryptophan side chain oxidase type I, tryptophan side-chain alpha,beta-oxidase activity, tryptophan side-chain oxidase activity