Protein
Probable aminodeoxychorismate synthase, chloroplastic
Organism
Oryza sativa subsp. japonica
Function
Bifunctional enzyme that catalyzes the biosynthesis of 4-amino-4-deoxychorismate (ADC) from chorismate and glutamine. In the first step, a glutamine amidotransferase generates ammonia that is channelled between the binding sites of glutamine and chorismate and used along with chorismate in the second step, catalyzed by aminodeoxychorismate synthase, to produce ADC. Required for the synthesis of 4-aminobenzoate (PABA), an important component in tetrahydrofolate biosynthesis. Does not possess ADC lyase activity (By similarity).
Similarity
In the C-terminal section; belongs to the anthranilate synthase component I family.
Sequence
MAALRLPTPPPPRAPAPWLHSSHRRRVAAPRGAGGGGGGGGAVPPPPVRTLLIDNYDSYTYNIFQELSVVNGVPPVVVRNDEWTWRDVYRWVYKERAFDNIVISPGPGSPACPSDIGIGLRILCECGDIPILGVCLGHQALGFVHGAKIVHAPEAIHGRLSELEHNGCYLFNHIPSGINSGFKVVRYHSLVIEPDSLSEDLISIAWTASPKMLSFLESDKPDITSSTLWGSLDNLFVTNQSECSTTDGKMPSINDASELDGYRVLMGVRHSTRPHYGVQFHPESVATHYGRQIFQNFKKITTDFGLQTPLLQERKVHSIGKLERSQISSPDLKNFVANDLLHSARLKLWDSVGPCALPKRSSGDKCLRLQWKKIDNFLNRIGGSENIFSVLFGHHSAEDTFWLDSSSVDQNRARFSFMGGKGGPLWKQMTFHLASQRANCGGNLTIRDAYGCTVRNFLKDGFLDFLDKEMQSIQYIEKDYEGLPFDFHGGFVGYIGYGLKVECDASSNSAKSSTPDACFFFADNLVVVDHNNGDVYILSLHDEYSSGNGDGDYQNSIHSLWLANTEKKLLRMDAMAPRLSINGNSSINGNSFTISSSVNKQRFVIEKSKDEYIRDVQSCLDYIRDGESYELCLTTQMKRRTDYMDALKLYLKLRKQNPAPYAAWLNFSSENLSICCSSPERFLRLDRNAILEAKPIKGTIARGRTPEEDECLRLQLKYSEKDQAENLMIVDLLRNDLGKVCEPGSVHVPRLMDVESYKTVHTMVSTIRGTKMSDLSPVDCVKAAFPGGSMTGAPKVRSMEILDSLETSPRGIYSGSVGFFSYNKTFDLNIVIRTVVLHNGEASIGAGGAIVALSDPEAEYNEMLLKAKAPTKVVEECSQQIYNPDRSDSMQTTVS