ID   5.4.99.18
DE   5-(carboxyamino)imidazole ribonucleotide mutase.
AN   N(5)-CAIR mutase.
AN   N(5)-carboxyaminoimidazole ribonucleotide mutase.
CA   5-carboxyamino-1-(5-phospho-D-ribosyl)imidazole + H(+) = 5-amino-1-
CA   (5-phospho-D-ribosyl)imidazole-4-carboxylate.
CC   -!- In eubacteria, fungi and plants, this enzyme, along with EC 6.3.4.18,
CC       is required to carry out the single reaction catalyzed by EC 4.1.1.21
CC       in vertebrates.
CC   -!- In the absence of EC 6.3.2.6, the reaction is reversible.
CC   -!- The substrate is readily converted into 5-amino-1-(5-phospho-D-
CC       ribosyl)imidazole by non-enzymic decarboxylation.
DR   Q5E1R4, PURE_ALIF1 ;  O67239, PURE_AQUAE ;  P12044, PURE_BACSU ;
DR   P52558, PURE_BRUME ;  Q8FYW3, PURE_BRUSU ;  Q44679, PURE_CORAM ;
DR   P0AG19, PURE_ECO57 ;  P0AG18, PURE_ECOLI ;  P43849, PURE_HAEIN ;
DR   Q58033, PURE_METJA ;  P22348, PURE_METSM ;  P41654, PURE_METTH ;
DR   P46702, PURE_MYCLE ;  P9WHM0, PURE_MYCTO ;  P9WHM1, PURE_MYCTU ;
DR   P72157, PURE_PSEAE ;  Q9UY68, PURE_PYRAB ;  O58058, PURE_PYRHO ;
DR   O06456, PURE_SACS2 ;  Q55498, PURE_SYNY3 ;  Q9WYS7, PURE_THEMA ;
DR   Q9KVT7, PURE_VIBCH ;  Q87KE1, PURE_VIBPA ;  Q8DDD7, PURE_VIBVU ;
DR   Q7MGL2, PURE_VIBVY ;
//