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Table 1 The kinetic parameters of MiXly, EcXly and its mutants (EcXlyN599A, EcXlyN599D and EcXlyN599G)

From: Dissecting the essential role of N-glycosylation in catalytic performance of xanthan lyase

Enzyme

Km(μM)

Kcat(min−1)

Kcat/Km(μM−1 min−1)

MiXlyd

38.455

0.181

0.031

EcXly

18.752 ± 1.042a

0.254 ± 0.016a

0.014 ± 0.001a

EcXlyN599A

1.361 ± 0.267c

0.021 ± 0.003c

0.016 ± 0.003a

EcXlyN599D

8.414 ± 0.910b

0.109 ± 0.009b

0.013 ± 0.001a

EcXlyN599G

1.314 ± 0.016c

0.021 ± 0c

0.015 ± 0a

  1. a,b,cThe superscript different letters in the same column represent significant difference (P < 0.05), whereas the superscript same letter in the same column suggests no significant difference (P > 0.05)
  2. d The kinetic data were from Yang et al. (2014)