Methods for making proteins containing free cysteine residues

Details Methods for making proteins containing free cysteine residues Methods for making proteins containing free cysteine residues

2011-05-24

2011-05-24

Allen, Marianne P (Department: 1647)

Drug, bio-affecting and body treating compositions

Designated organic active ingredient containing

Peptide containing doai

C530S350000, C530S351000, C530S402000

Reexamination Certificate

active

07947655

ABSTRACT:
The present invention relates to novel methods of making soluble proteins having free cysteines in which a host cell is exposed to a cysteine blocking agent. The soluble proteins produced by the methods can then be modified to increase their effectiveness. Such modifications include attaching a PEG moiety to form pegylated proteins.

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