Improving Glycosyltransferase by RACHITT Gene Shuffling

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: N/A
Agency Tracking Number: 1R43GM064312-01
Amount: $100,000.00
Phase: Phase I
Program: SBIR
Awards Year: 2001
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
ACERA BIOSCIENCES, INC.
603 E LAKE ST, STE 200F, WAYZATA, MN, 55391
DUNS: N/A
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 YONGQUAN XUE
 () -
Business Contact
Phone: (952) 475-4929
Email: DTAUS@ACERBIO.COM
Research Institution
N/A
Abstract
DESCRIPTION (provided by applicant): Glycosyltransferases involved in linking polyketide macrolactones with deoxysugars are key enzymes for combinatorial biosynthesis of novel macrolide anti-infective agents. In this proposal, a new gene shuffling technology, RACHITT, is applied to the desosarninyl transferase (Des VII) from the pikromycin biosynthetic pathway of Streptomyces venezuelae. Des VII is an enzyme with remarkable inherent substrate flexibility, and we expect to expand further its substrate spectrum to include 16-membered ring macrolactones. This technology is expected to provide glycosyltransferase enzymes that can catalyze the biosynthesis of 12-, 14-, and 16-membered ring macrolides. Moreover, we expect to generate a recombinant DesVII that has a higher enzymatic activity toward the 14-membered ring macrolactone narbonolide. This will be a key step in combinatorial biosynthesis of ketolide antibiotics that have a potential to combat multi-drug resistant bacterial pathogens. PROPOSED COMMERCIAL APPLICATION: NOT AVAILABLE

* information listed above is at the time of submission.

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