Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From heterocyclic reactant containing as ring atoms oxygen,...
Reexamination Certificate
2011-08-30
2011-08-30
Sellers, Robert (Department: 1765)
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From heterocyclic reactant containing as ring atoms oxygen,...
C525S058000, C525S403000, C525S404000, C525S405000, C525S408000
Reexamination Certificate
active
08008428
ABSTRACT:
The invention provides water-soluble compounds that include a polymer and at least one terminal azide or acetylene moiety. Also provided are highly efficient methods for the selective modification of proteins with PEG derivatives, which involves the selective incorporation of non-genetically encoded amino acids, e.g., those amino acids containing an azide or acetylene moiety, into proteins in response to a selector codon and the subsequent modification of those amino acids with a suitably reactive PEG derivative.
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AMBRX, Inc.
Eaton Kristin S.
Sellers Robert
Wallen III John W.
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