The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 28, 1995
Filed:
Jul. 23, 1993
Applicant:
Inventors:
Jonathan Knowles, Geneva, CH;
Merja Penttila, Helsinki, FI;
Tuula Teeri, Espoo, FI;
Helena M Nevalainen, North Epping, AU;
Paivi Lehtovaara-Helenius, Helsinki, FI;
Assignee:
Oy Alko AB, Helsinki, FI;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C12N / ; C12N / ; C12N / ; C12N / ;
U.S. Cl.
CPC ...
43525233 ; 435 698 ; 4351723 ; 435209 ; 43525411 ; 4352542 ; 43525421 ; 435945 ; 536 232 ; 536 2374 ;
Abstract
Methods and means for the construction of strains of yeast capable of producing cellulolytic enzymes, achieved by the transfer of chromosomal genes or cDNA copies of mRNAs coding for cellulolytic enzymes isolated from the fungus Trichoderma reesei to yeast cells using recombinant DNA vectors capable of replicating in yeast. The correct expression of these cellulolytic genes in yeast leads to the production of cellulolytic enzymes which are secreted from the cell. This allows the yeast to hydrolyze 3-1,4-glucan substrates such as cellulose.