Stable avidin composition and methods using same

C - Chemistry – Metallurgy – 07 – K

Patent

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Details

C07K 17/00 (2006.01) A61L 2/00 (2006.01) C07K 1/22 (2006.01) C07K 14/36 (2006.01) C07K 14/465 (2006.01) C07K 14/75 (2006.01) C07K 17/10 (2006.01) C12P 21/06 (2006.01)

Patent

CA 2237338

Compositions and methods for avidin immobilized on an inert support material, e.g., agarose, are disclosed. The compositions have high activity levels of avidin and may further include a bulking agent, e.g., maltose, and a protectant to maintain the stability and integrity of the avidin agarose during lyophilization and terminal sterilization processes. These compositions have applicability in any instance wherein avidin, agarose and/or the avidin/biotin technology are useful. In particular, the present compositions are useful in an enzyme capture system to prepare fibrin monomer useful for fibrin sealants.

Cette invention concerne des procédés et des compositions formées à partir d'avidine immobilisée sur une matière porteuse inerte, telle que de l'agarose. Les compositions présentent des niveaux d'activité élevés de l'avidine et peuvent également contenir un agent gonflant du maltose par exemple, et un agent protecteur pour maintenir la stabilité et l'intégrité de l'avidine agarose pendant les phases de lyophilisation et de stérilisation finale. Ces compositions sont utilisables dans tous les cas où la technologie de l'avidine, de l'agarose et/ou de l'avidine/biotine est adoptée. Les compositions de cette invention sont tout particulièrement utiles dans un système de captage d'enzyme servant à préparer le monomère de fibrine utile pour former des obturateurs fibrine.

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