Protein
Threonine dehydratase biosynthetic, chloroplastic
Organism
Arabidopsis thaliana
Function
Catalyzes the formation of alpha-ketobutyrate from threonine in a two-step reaction. The first step is a dehydration of threonine, followed by rehydration and liberation of ammonia.
Similarity
Belongs to the serine/threonine dehydratase family.
Sequence
MNSVQLPTAQSSLRSHIHRPSKPVVGFTHFSSRSRIAVAVLSRDETSMTPPPPKLPLPRLKVSPNSLQYPAGYLGAVPERTNEAENGSIAEAMEYLTNILSTKVYDIAIESPLQLAKKLSKRLGVRMYLKREDLQPVFSFKLRGAYNMMVKLPADQLAKGVICSSAGNHAQGVALSASKLGCTAVIVMPVTTPEIKWQAVENLGATVVLFGDSYDQAQAHAKIRAEEEGLTFIPPFDHPDVIAGQGTVGMEITRQAKGPLHAIFVPVGGGGLIAGIAAYVKRVSPEVKIIGVEPADANAMALSLHHGERVILDQVGGFADGVAVKEVGEETFRISRNLMDGVVLVTRDAICASIKDMFEEKRNILEPAGALALAGAEAYCKYYGLKDVNVVAITSGANMNFDKLRIVTELANVGRQQEAVLATLMPEKPGSFKQFCELVGPMNISEFKYRCSSEKEAVVLYSVGVHTAGELKALQKRMESSQLKTVNLTTSDLVKDHLRYLMGGRSTVGDEVLCRFTFPERPGALMNFLDSFSPRWNITLFHYRGQGETGANVLVGIQVPEQEMEEFKNRAKALGYDYFLVSDDDYFKLLMH