CHEBI:17797

1. transketolase (D-xylulose-5-phosphate)

Catalysed by TKT, TKTL1, TKTL2cytosol

1. D-Ribose 1,5-phosphomutase

Catalysed by PGM2cytosol

1. transketolase (D-xylulose-5-phosphate)

Catalysed by TKT, TKTL1, TKTL2cytosol

1. ATP:D-ribose-5-phosphate diphosphotransferase

Catalysed by PRPS2, PRPS1L1, PRPS1cytosol

1. D-ribose-5-phosphate aldose-ketose-isomerase

Catalysed by RPIAendoplasmic reticulumOne of 2 routes

1. D-ribose-5-phosphate aldose-ketose-isomerase
2. D-ribulose 5-phosphate + CTP + H(+) = CDP-D-ribulose + diphosphate

Catalysed by RPIA, CRPPAendoplasmic reticulum

1. ATP:D-ribose-5-phosphate diphosphotransferase
2. Nicotinate-nucleotide:pyrophosphate phosphoribosyltransferase (carboxylating)

Catalysed by PRPS2, PRPS1L1, PRPS1, QPRTcytosolOne of 2 routes

1. transketolase (D-xylulose-5-phosphate)
2. D-glyceraldehyde-3-phosphate aldose-ketose-isomerase
3. glyceronephosphate O-acyltransferase (DHAP)

Catalysed by TKT, TKTL1, TKTL2, TPI1 and 1 morecytosol, peroxisomeOne of 2 routes

1. D-Ribose 1,5-phosphomutase
2. purine nucleoside phosphorylase (nicotinamide)
3. 1-(beta-D-ribofuranosyl)-1,4-dihydronicotinamide + a quinone + H(+) = beta-nicotinamide D-riboside + a quinol