Reaction
D-sedoheptulose 7-phosphate+D-glyceraldehyde 3-phosphatealdehydo-D-ribose 5-phosphate+D-xylulose 5-phosphate
Right to left · Balanced
Kinetics
Km 73.9 µM · D-xylulose 5-phosphate · TKT
Measured · human enzyme; other conditions not stated · as “D-xylulose 5-phosphate (at pH 7.6 and 20 degrees Celsius)”
UniProt P29401 · 2026_03 · CC BY 4.0 · paper cited by UniProt PMID 31534226
Km 255 µM · D-xylulose 5-phosphate · TKT
Measured · human enzyme; other conditions not stated · as “D-xylulose 5-phosphate (recombinant enzyme without C-terminal hexahistidine tag at pH 7.6 and 30 degrees Celsius)”
UniProt P29401 · 2026_03 · CC BY 4.0 · paper cited by UniProt PMID 20667822
Km 303 µM · D-xylulose 5-phosphate · TKT
Measured · human enzyme; other conditions not stated · as “D-xylulose 5-phosphate (recombinant enzyme with C-terminal hexahistidine tag at pH 7.6 and 30 degrees Celsius)”
UniProt P29401 · 2026_03 · CC BY 4.0 · paper cited by UniProt PMID 20667822
Km 480 µM · aldehydo-D-ribose 5-phosphate · TKT
Measured · human enzyme; other conditions not stated · as “D-ribose 5-phosphate (recombinant enzyme without C-terminal hexahistidine tag at pH 7.6 and 30 degrees Celsius)”
UniProt P29401 · 2026_03 · CC BY 4.0 · paper cited by UniProt PMID 20667822
Km 610 µM · aldehydo-D-ribose 5-phosphate · TKT
Measured · human enzyme; other conditions not stated · as “D-ribose 5-phosphate (recombinant enzyme with C-terminal hexahistidine tag at pH 7.6 and 30 degrees Celsius)”
UniProt P29401 · 2026_03 · CC BY 4.0 · paper cited by UniProt PMID 20667822
Rhea RHEA:10508·2026-08-19·CC BY 4.0Reference data