Method for rapidly screening microbial hosts to identify certain strains with improved yield and/or quality in the expression of heterologous proteins

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United States of America Patent

PATENT NO 9580719
SERIAL NO

12610207

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Abstract

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The present invention provides an array for rapidly identifying a host cell population capable of producing a heterologous protein with improved yield and/or quality. The array comprises one or more host cell populations that have been genetically modified to increase the expression of one or more target genes involved in protein production, decrease the expression of one or more target genes involved in protein degradation, or both. One or more of the strains in the array may express the heterologous protein of interest in a periplasm compartment or may secrete the heterologous protein extracellularly through an outer cell wall. The strain arrays are useful for screening for improved expression of any protein of interest including therapeutic proteins, hormones, growth factors, extracellular receptors or ligands, proteases, kinases, blood proteins, chemokines, cytokines, antibodies and the like.

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Patent Owner(s)

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PELICAN TECHNOLOGY HOLDINGS INC10790 ROSELLE STREET SAN DIEGO CA 92121

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Coleman, Russell J San Diego, US 20 216
Hershberger, Charles D Fremont, US 6 156
Ramseier, Thomas M Carmel, US 14 291
Retallack, Diane M Poway, US 19 205
Schneider, Jane C San Diego, US 15 324
Squires, Charles H Poway, US 23 229

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