Compositions and methods for altering amino acid content of...

Chemistry: molecular biology and microbiology – Process of mutation – cell fusion – or genetic modification

Reexamination Certificate

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C435S069100

Reexamination Certificate

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06905877

ABSTRACT:
Methods and compositions for altering amino acid composition of a protein of interest are provided, particularly proteins whose three-dimensional structure is unknown. The method comprises creating interacting molecules to the native protein and selecting for engineered proteins which retain the native conformation by antibody binding. In this manner, the levels of essential amino acids in a protein can be increased yet the biological activity of the protein maintained. Also provided is an exemplary plant protein—Glycine maxvegetative storage protein (VSP)—in which methionine levels have been increased.

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