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Enzymes for Research, Diagnostic and Industrial Use

D-Ala-D-Ala dipeptidase

Cat No.
EXWM-4036
Description
A Zn2+-dependent enzyme. The enzyme protects Enterococcus faecium from the antibiotic vancomycin, which can bind to the -D-Ala-D-Ala sequence at the C-terminus of the peptidoglycan pentapeptide (see diagram). This enzyme reduces the availability of the free dipeptide D-Ala-D-Ala, which is the precursor for this pentapeptide sequence, allowing D-Ala-(R)-lactate (for which vancomycin has much less affinity)to be added to the cell wall instead. The enzyme is stereospecific, as L-Ala-L-Ala, D-Ala-L-Ala and L-Ala-D-Ala are not substrates. Belongs in peptidase family M15.
Form
Liquid or lyophilized powder
Enzyme Commission Number
Storage
Store it at +4 ºC for short term. For long term storage, store it at -20 ºC~-80 ºC.
Synonyms
D-alanyl-D-alanine dipeptidase; vanX D-Ala-D-Ala dipeptidase; VanX
Reaction
D-Ala-D-Ala + H2O= 2 D-Ala
Notes
This item requires custom production and lead time is between 5-9 weeks. We can custom produce according to your specifications.
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