@article {1311307,
	title = {Practical Synthesis of 5-Phospho-D-ribosyl-a-1-pyrophosphate (PRPP): Enzymatic Routes from Ribose-5-phosphate or Ribose},
	journal = {J. Am. Chem. Soc.},
	volume = {105},
	year = {1983},
	note = {163},
	pages = {7428-7434},
	author = {Gross, A. and Abril, O. and Lewis, J.M. and Geresh, S. and Whitesides, G. M.}
}
