Chemistry: natural resins or derivatives; peptides or proteins; – Proteins – i.e. – more than 100 amino acid residues – Chemical modification or the reaction product thereof – e.g.,...
Reexamination Certificate
2007-10-16
2007-10-16
Bragdon, Kathleen Kerr (Department: 1656)
Chemistry: natural resins or derivatives; peptides or proteins;
Proteins, i.e., more than 100 amino acid residues
Chemical modification or the reaction product thereof, e.g.,...
C530S387300, C530S350000, C530S416000, C530S412000, C435S440000
Reexamination Certificate
active
11439511
ABSTRACT:
A method for expressing proteins as a fusion chimera with a domain of p26 or alpha crystallin type proteins to improve the protein stability and solubility when over expressed in bacteria such asE. coliis provided. Genes of interest are cloned into the multiple cloning site of the Vector System just downstream of the p26 or alpha crystallin type protein and a thrombin cleavage site. Protein expression is driven by a strong bacterial promoter (TAC). The expression is induced by the addition of 1 mM IPTG that overcomes the lac repression (lac Iq). The soluble recombinant protein is purified using a fusion tag.
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Bragdon Kathleen Kerr
ECI Biotech Inc.
Liu Samuel Wei
Mirick O'Connell DeMallie & Lougee LLP
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