PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 18053578-1 2008 The standard assay for transketolase (E.C 2.2.1.1) has depended upon the use of D-xylulose 5-phosphate as the ketose donor substrate since the production of D-glyceraldehyde 3-phosphate can be readily coupled to a reaction that consumes NADH allowing the reaction to be followed spectrophotometrically. d-glyceraldehyde 3-phosphate 157-185 transketolase Homo sapiens 23-36