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Table 1 Assay of enzyme activities of crude PhbC, PhbA, PhbB and PpnK in C. crenatum SYPA 5, P1 (SYPA 5/phbCAB) and P2 (SYPA 5/phbCAB-ppnK)

From: Effect of Polyhydroxybutyrate (PHB) storage on l-arginine production in recombinant Corynebacterium crenatum using coenzyme regulation

Strains

Specific enzyme activities

PhbC (U/mg)

PhbA (U/mg)

PhbB (U/mg)

ATP-NAD kinase (U/g)

PolyP-NAD kinase (U/g)

C. crenatum SYPA 5

0.02 ± 0.00

0.02 ± 0.00

0.06 ± 0.01

0.63 ± 0.03

0.18 ± 0.01

C. crenatum P1

0.27 ± 0.01

0.58 ± 0.02

0.64 ± 0.02

0.67 ± 0.04

0.20 ± 0.01

C. crenatum P2

0.29 ± 0.01

0.61 ± 0.03

0.83 ± 0.03

84.35 ± 0.41

3.12 ± 0.02

  1. Samples were taken at 24 h of the shake flask using LBG culture. ATP-NAD kinase contained ATP-NAD+ kinase and ATP-NADH kinase while PolyP-NAD kinase contained PolyP-NAD+ kinase and PolyP-NADH kinase. Each data represented the average value of three independent measurements