Stable, functional chimeric cellobiohydrolase class I enzymes

US9708633B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-9708633-B2
Application numberUS-201615068521-A
CountryUS
Kind codeB2
Filing dateMar 11, 2016
Priority dateJun 1, 2010
Publication dateJul 18, 2017
Grant dateJul 18, 2017

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

The present disclosure relates to CBH I chimera fusion polypeptides, nucleic acids encoding the polypeptides, and host cells for producing the polypeptides.

First claim

Opening claim text (preview).

What is claimed is: 1. An enzymatic preparation comprising at least two recombinant enzymes comprising at least 98% amino acid sequence identity to a polypeptide having the sequences selected from the group consisting of SEQ ID NO: 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, and 34, wherein each of the enzymes has cellobiohydrolase activity. 2. The enzymatic preparation of claim 1 , wherein the enzymatic preparation comprises a polypeptide having at least 98% sequence identity to the polypeptide of SEQ ID NO: 20 and having cellobiohydrolase activity. 3. The enzymatic preparation of claim 1 , wherein the enzymatic preparation comprises a polypeptide having at least 98% sequence identity to the polypeptide of SEQ ID NO: 34 and having cellobiohydrolase activity. 4. The enzymatic preparation of claim 1 , wherein the enzymatic preparation comprises a polypeptide having at least 98% sequence identity to the polypeptide of SEQ ID NO: 20 and having cellobiohydrolase activity and a polypeptide having at least 98% sequence identity to the polypeptide of SEQ ID NO: 34 and having cellobiohydrolase activity. 5. The enzymatic preparation of claim 1 , wherein the preparation comprises a disrupted cell or microbial preparation. 6. The enzymatic preparation of claim 1 , further comprising one or more enzymes selected from the group consisting of a cellobiohydrolase II, an endoglucanase and a β-glucosidase. 7. A method of treating a biomass comprising cellulose, the method comprising contacting the biomass with the enzymatic preparation of claim 1 . 8. The method of claim 7 , wherein the method is carried out at about 65° C.

Assignees

Inventors

Classifications

  • Cellulase (3.2.1.4), i.e. endo-1,4-beta-glucanase · CPC title

  • Cellulose 1,4-beta-cellobiosidase (3.2.1.91) · CPC title

  • C12N9/2437Primary

    Cellulases (3.2.1.4; 3.2.1.74; 3.2.1.91; 3.2.1.150) · CPC title

  • Glucan 1,4-beta-glucosidase (3.2.1.74) · CPC title

  • C12P19/14Primary

    produced by the action of a carbohydrase {(EC 3.2.x)}, e.g. by alpha-amylase {, e.g. by cellulase, hemicellulase} · CPC title

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What does patent US9708633B2 cover?
The present disclosure relates to CBH I chimera fusion polypeptides, nucleic acids encoding the polypeptides, and host cells for producing the polypeptides.
Who is the assignee on this patent?
The California Inst Of Tech, California Inst Of Techn
What technology area does this patent fall under?
Primary CPC classification C12N9/2437. Mapped technology areas include Chemistry & Metallurgy.
When was this patent published?
Publication date Tue Jul 18 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).