This permease has a broad specificity towards purines, and also transports cytosine, but neither uracil nor thymine. Contributes very little in purine uptake. Its major role may be the uptake of cytosine. Highly induced during germination and drops to a low constant level throughout vegetative development. Repressed by ammonium. Down-regulated by endocytosis in responde to ammonia or the presence of cytosine. Belongs to the purine-cytosine permease (2.A.39) family. The predicted gene AN6017 has been split into 2 genes: AN10765 and AN10767.