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Table 3 Effects of the overexpression of heme biosynthetic genes on heme accumulation and chromophorylation ratio of SLA-PEB

From: Metabolic engineering of Escherichia coli for efficient biosynthesis of fluorescent phycobiliprotein

E. coli strain

Expressed heme gene(s)

Heme (μmol/L)

Chromophorylation ratio (%)

SLA-V4B

1.94 ± 0.16

83.6 ± 4.92

V5AL

hemA, hemL

2.96 ± 0.26

94.7 ± 3.23

V5ALB

hemA, hemL, hemB

1.95 ± 0.17

85.3 ± 2.15

V5ALD

hemA, hemL, hemD

3.30 ± 0.24

98.6 ± 3.98

V5ALF

hemA, hemL, hemF

2.78 ± 0.44

89.3 ± 3.53

V5ALG

hemA, hemL, hemG

2.36 ± 0.18

87.4 ± 2.70

V5ALH

hemA, hemL, hemH

1.70 ± 0.19

85.2 ± 4.12

  1. Data represent mean ± SD from five independent experiments