Protein
L-allo-isoleucine:holo-[CmaA peptidyl-carrier protein] ligase
Organism
Pseudomonas savastanoi pv. glycinea
Function
Involved in the biosynthesis of the phytotoxin coronatine (COR) which mimics the plant hormone jasmonic acid isoleucine and promotes opening of stomata for bacterial entry, bacterial growth in the apoplast, systemic susceptibility, and disease symptoms. CmaA catalyzes the adenylation of L-allo-isoleucine (via the A domain) and the attachment of L-allo-isoleucine to the 4'-phosphopantetheine arm located within the T domain of CmaA. It can also use L-isoleucine, L-leucine and L-valine as substerates.
Similarity
Belongs to the ATP-dependent AMP-binding enzyme family.
Sequence
MTSYHSHPPKAYRRFESVCTQAPNAIAVVHEGKPVTYQQLQTQVLERSEALIRQGLADHPYMPLMANRCLEYLITMLACCKLGITYVSIEPSTPSKRLIAVLEQLGCNHLLLLGQPTDLRPDPTLTCFRLDDCGTLCSDGPALRQPIRRRLDDASVITVMFTSGTTGVPKGVRISQDGLLNLVDNVQQQVQGKPRSYVHHSSIGFDAALFEVWVPLLTGACVTLQPSEFNIDALDHCVRAASCDVLLLTTSLFHLVAQHRLSMLEAVRVLYVGGEVLKPVHARALLLANPRITLVNGYGPTENTVFSTWYSLNKPEDAERDVIPIGQFLHQVHGKIVDAKLQEVEVGTPGELLLTGANLALGYLDEALTPTRFLQLPEGTYYRTGDYVIQDEHGMLFYQGRIDEQVKIKGFRVEIAEVEHALTQLPGVAQAVVQAHVMNDLENSLHAFIVFRHGSPTIEESKLMSLLGDRLPHYMVPRRIHYLAELPLTANGKVDKRSLQPPEKAAVVSPQAGSAVLEIWSGILGTRNLQLEHSIYGYGASSLSVVMAHSRINEILGRTTPFDEVARLSTFQEWVQYYATHADPVTSLRSQHGNH