Laboratoire Francais Du Fractionnement Et Des Biotechnologies

Gerard Perret

Nicolas Bihoreau

Laurent Siret

The invention relates to a method for purifying biologically active GLA-domain coagulation proteins, comprising the following steps: a) bringing a sample that contains one or more GLA-domain coagulation proteins and may contain biologically inactive molecules of GLA-domain protein(s), into contact with an affinity support on which nucleic aptamers that bind specifically to at least one biologically active GLA-domain coagulation protein are immobilized, in order to form complexes between (i) said nucleic aptamers and (ii) said GLA-domain coagulation protein(s), b) releasing the GLA-domain coagulation protein(s) from the complexes formed in step a), and c) recovering said biologically active GLA-domain coagulation protein(s) in a purified form.

Method for purifying active GLA-domain coagulation proteins

A a method for purifying biologically active GLA-domain coagulation proteins, includes the following steps: a) bringing a sample that contains one or more GLA-domain coagulation proteins and may contain biologically inactive molecules of GLA-domain protein(s), into contact with an affinity substrate on which nucleic aptamers that bind specifically to at least one biologically active GLA-domain coagulation protein are immobilized, in order to form complexes between (i) the nucleic aptamers and (ii) the GLA-domain coagulation protein(s), b) releasing the GLA-domain coagulation protein(s) from the complexes formed in step a), and c) recovering the biologically active GLA-domain coagulation protein(s) in a purified form.

Growing community of inventors

Choisy le Roi, France

Gerard Perret