EC number 5.3.1.4 ExPASy NiceZyme view | CAS number 9023-80-7 | |
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In enzymology, a L-arabinose isomerase (EC 5.3.1.4) is an enzyme that catalyzes the chemical reaction
L-arabinose
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(Text) CC BY-SA