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Table 3 Essential properties and kinetic parameters of GADs in this study and other microbial GADs

From: Characterization of three glutamate decarboxylases from Bacillus spp. for efficient γ-aminobutyric acid production

Microorganism

pH optimum

Temperature optimum (°C)

k cat/Km (mM-1 s-1)a

References

Bacillus sp. Z11

5.0

40

2.19

This study

Bacillus sp. Z1

5.0

40

1.23

This study

Bacillus sp. Z20

5.0

40

1.03

This study

Lactiplantibacillus plantarum

5.0

40

0.00012

[32]

Lactobacillus brevis 877G

4.2

45

0.7

[33]

Lactobacillus paracasei

5.0

50

1.43

[34]

Lactococcus lactis

4.7

30

ND

[35]

Streptomyces chromofuscus

4.2

37

1.21

[36]

  1. ND not determined
  2. aCatalytic efficiency (kcat/Km value) was determined using l-Glu as the substrate