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Table 1 Kinetic parameters of LeHex20A

From: Characterization of β-N-acetylhexosaminidase (LeHex20A), a member of glycoside hydrolase family 20, from Lentinula edodes (shiitake mushroom)

Substrate

Km(mM)

kcat(s-1)

kcat/Km

pNP-GlcNAc

0.34 ± 0.01

335 ± 10

983

pNP-GalNAc

0.43 ± 0.03

177 ± 8

411

Chitobiose(DP2)

0.42 ± 0.04

242 ± 14

576.7

Chitotriose(DP3)

0.14 ± 0.001

236 ± 1

1667

Chitotetraose(DP4)

0.07 ± 0.008

119 ± 5

1689

Chitopentaose(DP5)

0.08 ± 0.001

97 ± 1

1190

Chitohexaose(DP6)

0.1 ± 0.002

97 ± 1

992