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Table 2 K m and V max values for d-glucose and d-xylose uptake by Hxt11 transporters expressed in strain DS68625

From: An engineered cryptic Hxt11 sugar transporter facilitates glucose–xylose co-consumption in Saccharomyces cerevisiae

Transporter

K m (mM)

K m Glc/Xyl (ratio)

V max (nmol/mg DW min)

Source

Glucose

Xylose

Glucose

Xylose

Hxt11

33.4 ± 2.1

84.2 ± 10.0

0.40

156.4 ± 7.6

84.6 ± 2.4

This study

Hxt11-N366D

87.0 ± 6.4

106.7 ± 21.7

0.82

197.8 ± 11.4

86.5 ± 2.0

This study

Hxt11-N366T

194.4 ± 47.9

46.7 ± 2.7

4.16

238.6 ± 7.4

76.2 ± 4.8

This study

Hxt11-N366 M

144.9 ± 36.0

50.1 ± 9.7

2.89

143.0 ± 17.2

65.0 ± 6.8

This study

Hxt2

n.d.

51.2 ± 0.1

n.d.

n.d.

23.8 ± 0.4

This study

Gal2

1.5 ± 0.2

225.6 ± 15.8

0.01

27.2 ± 0.9

91.3 ± 3.2

[36]

Hxt7

0.5 ± 0.1

200.3 ± 13.2

0

26.0 ± 1.1

67.0 ± 2.0

[36]

  1. n.d. not determined, ± standard deviation with n = 2