HARVEST OPERATIONS FOR RECOMBINANT PROTEINS

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United States of America Patent

APP PUB NO 20180291411A1
SERIAL NO

15908526

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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The present invention contemplates a method of producing a recombinant protein comprising (a) fermenting a prokaryotic host cell wherein said prokaryotic host cell has been transformed with a nucleic acid encoding said recombinant protein, and (b) harvesting said recombinant protein under conditions where dO2 levels are greater than 0%, and (c) purifying said recombinant protein to a filtered bulk, wherein said filtered bulk does not contain detectable DHNA-recombinant protein adduct, as measured by an IEC assay at 310 nm. The present invention also contemplates a method of producing a recombinant protein comprising (a) fermenting a menE gene-deleted prokaryotic host cell wherein said prokaryotic host cell has been transformed with a nucleic acid encoding said recombinant protein, (b) harvesting said recombinant protein; and (c) purifying said recombinant protein to a filtered bulk, wherein said filtered bulk does not contain detectable DHNA-recombinant protein adduct, as measured by an IEC assay at 310 nm, and wherein the recombinant protein yield is increased by about 20% or greater.

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Patent Owner(s)

Patent OwnerAddress
GENENTECH INCSOUTH SAN FRANCISCO CA 94080-4990

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
ADAMS, Rachel LE Guelph, CA 5 1
GUNSON, Jane V Redwood City, US 7 1
KALEAS, Kimberly San Mateo, US 6 1
LAIRD, Michael W San Ramon, US 35 330
NADARAJAH, Deepa San Mateo, US 10 36
SNEDECOR, Bradley R Portola Valley, US 22 1679
ST, JOHN Richard Millbrae, US 17 59

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