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Information on EC - L-rhamnose isomerase

for references in articles please use BRENDA:EC5.3.1.14
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IUBMB Comments
Contains two divalent metal ions located at different metal-binding sites within the active site. The enzyme binds the closed ring form of the substrate and catalyses ring opening to generate a form of open-chain conformation that is coordinated to one of the metal sites. Isomerization proceeds via a hydride-shift mechanism. While the enzyme from the bacterium Escherichia coli is specific for L-rhamnose, the enzyme from the bacterium Pseudomonas stutzeri has broad substrate specificity and catalyses the interconversion of L-mannose and L-fructose, L-lyxose and L-xylulose, D-ribose and D-ribulose, and D-allose and D-psicose .
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Word Map
The enzyme appears in viruses and cellular organisms
l-rhi, l-rhamnose isomerase, rhamnose isomerase, more
L-rhamnopyranose = L-rhamnulose
show the reaction diagram