ID 4.2.3.1 DE Threonine synthase. CA O-phospho-L-homoserine + H(2)O = L-threonine + phosphate. CF Pyridoxal 5'-phosphate. CC -!- Formerly EC 4.2.99.2. PR PROSITE; PDOC00149; DR Q9S7B5, THRC1_ARATH; Q9SSP5, THRC2_ARATH; Q00063, THRC_ASHGO ; DR Q9K7E3, THRC_BACHD ; P09123, THRC_BACSL ; P04990, THRC_BACSU ; DR P57289, THRC_BUCAI ; Q8K9V1, THRC_BUCAP ; Q89AR5, THRC_BUCBP ; DR P23669, THRC_CORGL ; P00934, THRC_ECOLI ; P44503, THRC_HAEIN ; DR Q9ZMX5, THRC_HELPJ ; O24924, THRC_HELPY ; Q8TQD4, THRC_METAC ; DR P37145, THRC_METGL ; Q58860, THRC_METJA ; P66903, THRC_MYCBO ; DR P45837, THRC_MYCLE ; A0R220, THRC_MYCS2 ; P66902, THRC_MYCTU ; DR P29363, THRC_PSEAE ; Q42598, THRC_SCHPO ; P27735, THRC_SERMA ; DR Q9MT28, THRC_SOLTU ; P74193, THRC_SYNY3 ; P16120, THRC_YEAST ; //