Table 2 Hydrolytic activities of WT, N62A, and K203A from different culture batches on different substrates. Hydrolytic activity values from duplicated experiments are listed with standard deviations in parentheses.

From: Alanine substitution in cellobiohydrolase provides new insights into substrate threading

Substrate

Assay

Activity

Culture no. of N62A

WT

N62A

K203A

Cellulose, Sigma (excerpted from Table 1)

HPLC

1.00 (0.01)

>3.85 (0.49)

1.26 (0.05)

1

Cellulose, Merck

HPLC

1.00 (0.04)

>4.57 (0.45)

1.36 (0.05)

Cellulose, Merck

HPLC

1.00 (0.05)

>3.78 (0.90)

ND

2

Cellulose, Sigma

DNS

1.00 (0.42)

2.20 (1.12)

1.89 (0.58)

3

Pretreated corn stover

HPLC

1.00 (0.07)

>3.92 (0.34)

1.00 (0.15)

4