发明名称 |
HARVEST OPERATIONS FOR RECOMBINANT PROTEINS |
摘要 |
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. |
申请公布号 |
US2016130624(A1) |
申请公布日期 |
2016.05.12 |
申请号 |
US201514734848 |
申请日期 |
2015.06.09 |
申请人 |
Genentech, Inc. |
发明人 |
LAIRD Michael W.;ST. JOHN Richard;GUNSON Jane V.;KALEAS Kimberly;NADARAJAH Deepa;ADAMS Rachel L.E.;SNEDECOR Bradley R. |
分类号 |
C12P21/00;C07K16/00 |
主分类号 |
C12P21/00 |
代理机构 |
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代理人 |
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主权项 |
1. 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 dissolved oxygen (dO2) levels are greater than 0%, and (c) purifying said recombinant protein to a filtered bulk for storage (FBS), wherein said filtered bulk does not contain detectable 1,4-dihydroxy-2-naphthoate (DHNA)-recombinant protein adduct, as measured by an ion exchange chromatography (IEC) assay at 310 nm. |
地址 |
South San Francisco CA US |