Main Reaction: Ribose 5-phosphate >> 5-Phosphoribosyl-1-pyrophosphate

Reference: PubMed ID: 8747475
Authors: Gilles AM, Cristea I, Palibroda N, Hilden I, Jensen KF, Sarfati RS, Namane A, Ughetto-Monfrin J, Bârzu O
Title: Chemienzymatic synthesis of uridine nucleotides labeled with [15N] and [13C].
Published: 1995 Dec 10

Ribose 5-phosphate --> 5-Phosphoribosyl-1-pyrophosphate