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Table 1 Lactate dehydrogenase ( LDH), phosphotransacetylase (PTA) and acetaldehyde dehydrogenase (ADH) activity of K. pneumoniae parent strain (KG1) and its mutants, the values represent mean ± SD

From: Effect of the inactivation of lactate dehydrogenase, ethanol dehydrogenase, and phosphotransacetylase on 2,3-butanediol production in Klebsiella pneumoniae strain

Strains LDH activity PTA activity ADH activity
U/mg protein Percentage of wild type U/mg protein Percentage of wild type U/mg protein Percentage of wild type
KG1 4.66 ± 0.23 100 2.42 ± 0.04 100 2.67 ± 0.22 100
ΔldhA 0.56 ± 0.03 12.02 1.69 ± 0.05 69.83 2.75 ± 0.21 102.99
ΔadhE 4.35 ± 0.31 93.35 1.73 ± 0.03 71.48 0.06 ± 0.01 2.24
Δpta 4.56 ± 0.25 97.80 0.04 ± 0.01 1. 65 2.29 ± 0.15 85.76