Function and Biology

Crystal structure of a transketolase from Burkholderia thailandensis with an oxidized cysteinesulfonic acid in the active site

Source organism: Burkholderia thailandensis E264
Biochemical function: metal ion binding
Biological process: pentose-phosphate shunt
Cellular component: cytosol

EC 2.2.1.1: Transketolase

Reaction catalysed:
Sedoheptulose 7-phosphate + D-glyceraldehyde 3-phosphate = D-ribose 5-phosphate + D-xylulose 5-phosphate
Systematic name:
Sedoheptulose-7-phosphate:D-glyceraldehyde-3-phosphate glycolaldehydetransferase
Alternative Name(s):
  • Glycoaldehyde transferase
  • Glycolaldehydetransferase

GO terms

Sequence families

Pfam Protein families (Pfam)
PF22613
Domain description: Transketolase-like TK C-terminal domain
Occurring in:
  1. transketolase

PF02779
Domain description: Transketolase, pyrimidine binding domain
Occurring in:
  1. transketolase

PF00456
Domain description: Transketolase, thiamine diphosphate binding domain
Occurring in:
  1. transketolase

InterPro InterPro annotations
IPR005474
Domain description: Transketolase, N-terminal
Occurring in:
  1. transketolase
IPR009014
Domain description: Transketolase C-terminal/Pyruvate-ferredoxin oxidoreductase domain II
Occurring in:
  1. transketolase
IPR005475
Domain description: Transketolase-like, pyrimidine-binding domain
Occurring in:
  1. transketolase
IPR029061
Domain description: Thiamin diphosphate-binding fold
Occurring in:
  1. transketolase
IPR033248
Domain description: Transketolase, C-terminal domain
Occurring in:
  1. transketolase
IPR005478
Domain description: Transketolase, bacterial-like
Occurring in:
  1. transketolase
IPR033247
Domain description: Transketolase family
Occurring in:
  1. transketolase

Structure domains

CATH CATH domains
3.40.50.970
Class: Alpha Beta
Architecture: 3-Layer(aba) Sandwich
Topology: Rossmann fold
Homology: Rossmann fold
Occurring in:
  1. transketolase
3.40.50.920
Class: Alpha Beta
Architecture: 3-Layer(aba) Sandwich
Topology: Rossmann fold
Homology: Rossmann fold
Occurring in:
  1. transketolase