Dongguan Apac Biotechnology Co., Ltd.

Ting-Yung Huang

Hui-Lin Lai

Cheng-Yen Lin

Ya-Shan Cheng

Tzu-Hui Wu

Rey-Ting Guo

Jian-Wen Huang

I-Hsuan Lin

Cheng-Bin Zheng

Chun-Chi Chen

A beta-glucosidase having improved enzymatic activity is disclosed. The amino acid sequence of the beta-glucosidase is a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of tyrosine at position 286 with phenylalanine, or a substitution of asparagine at position 639 with glutamate.

Beta-glucosidase having improved enzymatic activity

A xylosidase having improved enzymatic activity is disclosed. The amino acid sequence of the xylosidase is a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of phenylalanine at position 35 with glutamate, and/or a substitution of glutamine at position 41 with histidine.

Xylosidase having improved enzymatic activity

A glucose oxidase having improved thermostability is disclosed. The amino acid sequence of the glucose oxidase is a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of glutamate at position 129 with proline, and/or a substitution of glutamine at position 243 with valine.

Glucose oxidase having improved thermostability

A phytase having improved enzymatic activity is disclosed. The phytase has a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of Valine at position 90 with Threonine. Alternatively, the phytase has a modified amino acid sequence of SEQ ID NO: 6, wherein the modification is a substitution of Asparagine at position 204 with Alanine or a substitution of Serine at position 206 with Alanine.

Phytase having improved enzymatic activity

A &#x3b2;-mannanase having increased production yield and enzymatic activity is disclosed. The &#x3b2;-mannanase has a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of Tyrosine at position 25 with Histidine.

&#x3b2;-mannanase having improved production yields and enzymatic activity

A &#x3b2;-mannanase having increased enzymaic activity is disclosed. The &#x3b2;-mannanase has a modified amino acid sequence of SEQ ID NO: 2, wherein the modification is a substitution of Tyrosine at position 216 with Tryptophan.

&#x3b2;-mannanase having improved enzymatic activity

A xylanase having increased enzymaic activity is disclosed. The xylanase has a modified amino acid sequence of SEQ ID NO: 2, wherein Tryptophan at position 125 is substituted with Phenylalanine and Phenylalanine at position 163 is substituted with Tryptophan.

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Taipei, Taiwan

Ting-Yung Huang