Function
Part of a heterotetrameric complex that catalyzes the two-step biosynthesis of anthranilate, an intermediate in the biosynthesis of L-tryptophan. In the first step, the glutamine-binding beta subunit of anthranilate synthase (AS) provides the glutamine amidotransferase activity which generates ammonia as a substrate that, along with chorismate, is used in the second step, catalyzed by the large alpha subunit of AS to produce anthranilate (By similarity).
Sequence
MSAVSISAVKSDFFTVEAIAVTHHRTPHPPHFPSLRFPLSLKSPPATSLNLVAGSKLLHFSRRLPSIKCSYTPSLDLSEEQFTKFKKASEKGNLVPLFRCVFSDHLTPILAYRCLVKEDDRDAPSFLFESVEPGSQSSNIGRYSVVGAQPTIEIVAKGNVVTVMDHGASLRTEEEVDDPMMVPQKIMEEWNPQGIDELPEAFCGGWVGYFSYDTVRYVEKKKLPFSNAPEDDRSLPDVNLGLYDDVIVFDHVEKKAYVIHWVRIDKDRSVEENFREGMNRLESLTSRIQDQKPPKMPTGFIKLRTQLFGPKLEKSTMTSEAYKEAVVEAKEHILAGDIFQIVLSQRFERRTFADPFEIYRALRIVNPSPYMAYLQVRGCILVASSPEILLRSKNRKITNRPLAGTVRRGKTPKEDLMLEKELLSDEKQCAEHIMLVDLGRNDVGKVSKPGSVEVKKLKDIEWFSHVMHISSTVVGELLDHLTSWDALRAVLPVGTVSGAPKVKAMELIDELEVTRRGPYSGGFGGISFNGDMDIALALRTMVFPTNTRYDTLYSYKHPQRRREWIAHIQAGAGIVADSNPDDEHRECENKAAALARAIDLAESSFLEAPEFTTITPHINNI