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 ;  P9WG58, THRC_MYCTO ;
DR   P9WG59, THRC_MYCTU ;  P29363, THRC_PSEAE ;  Q42598, THRC_SCHPO ;
DR   P27735, THRC_SERMA ;  Q9MT28, THRC_SOLTU ;  P74193, THRC_SYNY3 ;
DR   P16120, THRC_YEAST ;
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