Puneet Varma (Editor)

L arabinose isomerase

Updated on
Edit
Like
Comment
Share on FacebookTweet on TwitterShare on LinkedInShare on Reddit
EC number
  
5.3.1.4

IntEnz
  
IntEnz view

ExPASy
  
NiceZyme view

CAS number
  
9023-80-7

BRENDA
  
BRENDA entry

KEGG
  
KEGG entry

L-arabinose isomerase

In enzymology, a L-arabinose isomerase (EC 5.3.1.4) is an enzyme that catalyzes the chemical reaction

L-arabinose L-ribulose

Hence, this enzyme has one substrate, L-arabinose, and one product, L-ribulose.

This enzyme belongs to the family of isomerases, specifically those intramolecular oxidoreductases interconverting aldoses and ketoses. The systematic name of this enzyme class is L-arabinose aldose-ketose-isomerase. This enzyme participates in pentose and glucuronate interconversions.

This enzyme catalyses the conversion of L-arabinose to L-ribulose as the first step in the pathway of L-arabinose utilization as a carbon source.

Structural studies

As of late 2007, two structures have been solved for this class of enzymes, with PDB accession codes 2AJT and 2HXG.

References

L-arabinose isomerase Wikipedia