The University of Texas System

Harvard College

Fredrik Aslund

George Georgiou

Paul Henry Bessette

Jonathan R Beckwith

Daniel Ritz

Jackie Eun-ah Lim

The invention provides composition and methods for producing proteins of interest which comprise at least one disulfide bond, include proteins which in their mature form do not contain disulfide bonds, but whose precursor molecule contained at least one disulfide bond. The methods employ a host cell modified to more efficiently produce properly folded disulfide bond containing proteins. The host cells generally contain a mutation in one or more reductase genes, and can be further genetically modified to increase their growth rate, and are further optionally modified to increase the expression of a catalyst of disulfide bond formation. Host cells, methods for using such to produce proteins of interest, proteins of interest produced by these methods are within the scope of the invention.

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Stockholm, Sweden

Fredrik Aslund