发明名称 |
(1 -m(7) 3, 1 -m(7) 4)--g(b)-GLUCANASE OF ENHANCED STABILITY |
摘要 |
This invention relates to a (1->3, 1->4)-beta-glucanase (glucanase EII endohydrolase) enzyme, whose amino acid sequence has been modified in order to provide an enzyme whose three-dimensional structure confers improved thermostability and/or pH stability. Specific modifications are based upon a comparison between the three-dimensional structure (1->3, 1->4)-beta-glucanase and that of (1->3)-beta-glucanase. The (1->3, 1->4)-beta-glucanase gene has been modified by site-directed mutagenesis, and modified enzymes have been expressed in E. coli. Modified sequences, DNA molecules encoding them, plasmids, expression vectors and transgenic plants are disclosed. |
申请公布号 |
EP0707640(A1) |
申请公布日期 |
1996.04.24 |
申请号 |
EP19940920335 |
申请日期 |
1994.07.06 |
申请人 |
BIOMOLECULAR RESEARCH INSTITUTE LTD.;LA TROBE UNIVERSITY;LUMINIS PTY. LIMITED |
发明人 |
VARGHESE, JOSEPH NOOZHUMURRY;GARRETT, THOMAS PETER JOHN;FINCHER, GEOFFREY BRUCE;HOJ, PETER BORDIER;CHEN, LIN |
分类号 |
A01H5/00;A23K1/165;C12N1/21;C12N9/24;C12N9/42;C12N15/09;C12N15/56;C12N15/82;C12R1/19 |
主分类号 |
A01H5/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|