5.3.1.13 H190A inactive 727304 5.3.1.13 H85A inactive 727304 5.3.1.13 H88A the enzyme site-specific mutant is able to catalyze the isomerization of A5P to R5P in vitro with 9.5% of the wild type protein activity 716854 5.3.1.13 K56A the mutant shows 0.31% residual activity compared to the wild type enzyme 727304 5.3.1.13 K59A catalytically inactive 716854 5.3.1.13 additional information the deletion mutants CDY17615 are transformed with 15 low copy number constructs to study the abilty to biofilms 676073