E.i. Dupont De Nemours and Company

Linda Jane Solomon

Pierre E Rouviere

Stephen R Fahnestock

Tanja Maria Gruber

Robert DiCosimo

Mark Scott Payne

Hong Peng Wang

Qiong Cheng

Albert W Alsop

Scott D Cunningham

Kari A Fosser

Compositions and methods are provided using fusion peptides comprising at least one multi-functional solubility tag having an effective number of cross-linkable cysteines residues. The multi-functional peptidic solubility tags facilitate efficient fusion peptide production, easier downstream processing of the fusion peptide, and provide functional surface properties when coupled to a target material while the cross-linkable cysteines provide enhanced durability when binding the fusion peptide to a target material.

Cysteine cross-linked structural peptides

Disclosed herein are compositions and methods to target enzymatic peracid production to a target surface. The peracid benefit agent produced by the targeted perhydrolytic enzyme can be use for a variety of applications such as bleaching, whitening, disinfecting, destaining, deodorizing, and combinations thereof. Specifically, a fusion protein comprising a perhydrolytic enzyme and at least one peptidic component having affinity for a target surface (excluding body surfaces and oral care surfaces) is used in combination with a suitable substrate and a source of peroxygen to enzymatically produce a peracid on or near the surface of the target material. In a preferred aspect, the target surface is a cellulosic material.

Targeted perhydrolases

The invention relates to the recombinant expression of a peptide of interest in the form of a fusion protein comprising a solubility tag. The fusion protein comprises at least two portions separated by a cleavable peptide sequence wherein one portion is devoid of cysteine residues and the second portion comprises an effective number of cross-linkable cysteine residues. After cell lysis and isolation of the fusion protein, the fusion protein is subsequently cleaved into a mixture of first and second portions. Oxidative cross-linking is used to selectively precipitate one of the two portions to facilitate simple and effective separation of the peptide of interest.

Recombinant peptide production using a cross-linkable solubility tag

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Wilmington, DE, United States of America

Linda Jane Solomon