2.9.1.3 tRNA 2-selenouridine synthase Methanocaldococcus fervens 5.1.3.17 heparosan-N-sulfate-glucuronate 5-epimerase Methanocaldococcus fervens 5.1.3.17 heparosan-N-sulfate-glucuronate 5-epimerase Methanocaldococcus fervens AG86 6.3.4.24 tyramine-L-glutamate ligase Methanocaldococcus fervens 6.3.4.24 tyramine-L-glutamate ligase Methanocaldococcus fervens DSM 4213