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:
Oct. 21, 2025
Filed:
Dec. 17, 2021
Alliance for Sustainable Energy, Llc, Golden, CO (US);
Vanderbilt University, Nashville, TN (US);
Jianping Yu, Golden, CO (US);
Bo Wang, Nashville, TN (US);
Alliance for Sustainable Energy, LLC, Golden, CO (US);
Vanderbilt University, Nashville, TN (US);
Abstract
Presented herein arestrains engineered to express the bacterial ethylene-forming enzyme (EFE) that exhibit unstable ethylene production due to toxicity and genomic instability induced by accumulation of the EFE-byproduct guanidine. Co-expression of EFE and Sll1077 significantly enhanced genomic stability and enabled the resultingstrain GD-EFE7942 to achieve sustained high-level ethylene production. The engineered strains and methods disclosed herein are useful for guanidine degradation pathways and for ethylene bioproduction in cyanobacteria.