ID   4.4.1.8
DE   Cystathionine beta-lyase.
AN   Beta C-S lyase.
AN   Beta-cystathionase.
AN   Cysteine lyase.
AN   Cystine lyase.
CA   L-cystathionine + H(2)O = L-homocysteine + NH(3) + pyruvate.
CF   Pyridoxal 5'-phosphate.
CC   -!- The enzyme from some sources also acts on L-cystine, forming
CC       pyruvate, ammonia and cysteine persulfide, and a number of related
CC       compounds.
CC   -!- Possibly identical, in Saccharomyces cerevisiae, with EC 4.4.1.6.
PR   PROSITE; PDOC00518;
PR   PROSITE; PDOC00677;
DR   Q08432, CBL_BACSU  ;  P63503, CBL_MYCBO  ;  Q9CBM9, CBL_MYCLE  ;
DR   P63502, CBL_MYCTU  ;  O94350, CBL_SCHPO  ;  P23256, MALY_ECOLI ;
DR   P53780, METC_ARATH ;  O31632, METC_BACSU ;  Q07703, METC_BORAV ;
DR   Q83A83, METC_COXBU ;  P85217, METC_CRYLA ;  P06721, METC_ECOLI ;
DR   P44527, METC_HAEIN ;  P0A4K2, METC_LACLA ;  P0C2T9, METC_LACLC ;
DR   A2RM21, METC_LACLM ;  Q52811, METC_RHIL3 ;  P18949, METC_SALTY ;
DR   P43623, METC_YEAST ;  P53101, STR3_YEAST ;
//