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. 2014 Oct 19;114(1):175–184. doi: 10.1007/s00436-014-4174-4

Table 3.

Summary of catalytic properties of the wild-type GlmNagB and its oligoHis-tagged versions

Enzyme version Kinetic parameters
Aminating direction Deaminating direction
K M Fru6P [mM] KM NH4Cl [mM] V max [μM/min/mg] K M GlcN6P [mM] V max [μM/min/mg]
GlmNagBa 2.5 ± 0.24 19.0 ± 1.90 86.3 ± 3.20 0.38 ± 0.16 32.8 ± 5.30
GlmNagB 2.8 ± 0.14 23 ± 1.20 100 ± 5.20 0.55 ± 0.05 38.1 ± 1.70
GlmNagB-HisN 1.71 ± 0.11 14.0 ± 0.80 128.0 ± 11.00 0.95 ± 0.15 45.2 ± 7.70
GlmNagB-HisC 3.52 ± 0.15 41.6 ± 3.30 2.0 ± 0.16 5.21 ± 0.40 1.21 ± 0.11

aReference data (Steimle et al. 1997)