Fusion proteins comprising immunoglobulin constant domain-derived scaffolds

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United States of America Patent

PATENT NO 9803210
SERIAL NO

14377578

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Abstract

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This disclosure features fusion proteins comprising a base protein linked to or incorporated in a CH2 scaffold of IgG. The CH2 scaffold can derive from the macaque CH2 domain of IgG. The fusion proteins can effectively bind a single or multiple targets, and can be engineered to regulate effector functions as desired. The fusion proteins can have an increased serum half-life, solubility, stability, protease resistance, and/or expression as compared to the scaffolds alone and/or as compared to the base protein alone. This disclosure also features fusion proteins comprising a base protein, a CH2 scaffold and a discrete polyethylene glycol (dPEG) linked to the scaffold via a serine, tyrosine, cysteine, lysine, or a glycosylation site of the scaffold. This disclosure additionally features scaffolds linked to a discrete polyethylene glycol (dPEG) via a serine, tyrosine, cysteine, or lysine of the scaffolds or a glycosylation site of the scaffold.

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Patent Owner(s)

  • RESEARCH CORPORATION TECHNOLOGIES, INC.

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Bramhill, David Tucson, US 6 17
Gehlsen, Kurt R Tucson, US 42 251

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