IP Library › Granted Patent US 10,793,838
Granted Patent B2
US 10,793,838 · App. 16/382,695 · Granted Oct 6, 2020

Glucosyltransferase enzymes for production of glucan polymers

Inventors: Jayme L. Paullin (Exton, PA); Mark S. Payne (Wilmington, DE); T. Joseph Dennes (Parkesburg, PA); Yefim Brun (Wilmington, DE); Rakesh Nambiar (West Chester, PA); Thomas H. Scholz (Bear, DE)
Assignee: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
C12N9/1051C08B37/0009C08B37/0021C12P19/04C12P19/18
View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 10,793,838
App. No.
16/382,695
Granted
Oct 6, 2020
Kind
B2
Abstract

Compositions are disclosed herein comprising poly alpha-1,3-1,6-glucan with a weight average degree of polymerization (DP w ) of at least 1000. This glucan polymer comprises at least 30% alpha-1,3 linkages and at least 30% alpha-1,6 linkages. Further disclosed are glucosyltransferase enzymes that synthesize poly alpha-1,3-1,6-glucan. Ether derivatives of poly alpha-1,3-1,6-glucan and methods of using such derivatives as viscosity modifiers are also disclosed.

Claims (16)

1. A composition comprising water-insoluble poly alpha-1,3-1,6-glucan, wherein said poly alpha-1,3-1,6-glucan is a product of a glucosyltransferase enzyme comprising an amino acid sequence that is at least 90% identical to SEQ ID NO:2, and wherein the alpha-1,3 linkages and alpha-1,6 linkages of the poly alpha-1,3-1,6-glucan do not consecutively alternate with each other.

2. The composition of claim 1 , wherein the glucosyltransferase enzyme comprises an amino acid sequence that is at least 95% identical to SEQ ID NO:2.

3. The composition of claim 1 , wherein the glucosyltransferase enzyme comprises an amino acid sequence that is at least 98% identical to SEQ ID NO:2.

4. The composition of claim 1 , wherein the glucosyltransferase enzyme comprises an amino acid sequence that is at least 99% identical to SEQ ID NO:2.

5. The composition of claim 1 , wherein the glucosyltransferase enzyme comprises the amino acid sequence of SEQ ID NO:2.

6. The composition of claim 1 , further comprising the glucosyltransferase enzyme.

7. The composition of claim 6 , wherein the glucosyltransferase enzyme comprises an amino acid sequence that is at least 95% identical to SEQ ID NO:2.

8. The composition of claim 6 , wherein the glucosyltransferase enzyme comprises an amino acid sequence that is at least 98% identical to SEQ ID NO:2.

9. The composition of claim 6 , wherein the glucosyltransferase enzyme comprises an amino acid sequence that is at least 99% identical to SEQ ID NO:2.

10. The composition of claim 6 , wherein the glucosyltransferase enzyme comprises the amino acid sequence of SEQ ID NO:2.

11. The composition of claim 6 , wherein the glucosyltransferase enzyme consists of an amino acid sequence that is at least 90% identical to SEQ ID NO:2.

12. The composition of claim 6 , wherein the glucosyltransferase enzyme consists of an amino acid sequence that is at least 95% identical to SEQ ID NO:2.

13. The composition of claim 6 , wherein the glucosyltransferase enzyme consists of an amino acid sequence that is at least 98% identical to SEQ ID NO:2.

14. The composition of claim 1 , wherein the composition is a personal care product, household product, industrial product, pharmaceutical product, or food product.

15. The composition of claim 1 , wherein the composition is a laundry detergent or fabric softener.

16. The composition of claim 1 , wherein the composition is an aqueous composition.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 28, 2020
From: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
To: NUTRITION & BIOSCIENCES USA 4, INC.
Reel/Frame 055028/0496 →