Main Reaction: D-ribose-5-phosphate + D-xylulose-5-phosphate >> sedoheptulose-7-phosphate + glyceraldehyde-3-phosphate

Reference: PubMed ID: 19820143
Authors: Vanfossen AL, Verhaart MR, Kengen SM, Kelly RM
Title: Carbohydrate utilization patterns for the extremely thermophilic bacterium Caldicellulosiruptor saccharolyticus reveal broad growth substrate preferences.
Published: 2009 Dec

D-ribose-5-phosphate + D-xylulose-5-phosphate --> sedoheptulose-7-phosphate + glyceraldehyde-3-phosphate