byi:BYI23_B014500 K01724 4a-hydroxytetrahydrobiopterin dehydratase [EC:4.2.1.96] | (GenBank) transcriptional coactivator/pterin dehydratase byi:BYI23_B014490 K06984 beta-ribofuranosylaminobenzene 5'-phosphate synthase [EC:2.4.2.54] | (GenBank) beta-ribofuranosylaminobenzene 5'-phosphate synthase family