Expressed in all tissues. Expression is weak in the outer tissues in the mature part of the root but it remains high in the vascular tissues.
Encodes the tryptophan biosynthetic enzyme phosphoribosylanthranilate transferase (PAT1, called trpD in bacteria). Converts anthranilate and phosphoribosylpyrophosphate into phosphoribosylanthranilate and inorganic pyrophosphate.
TRP1 (tryptophan biosynthesis 1); anthranilate phosphoribosyltransferase