METHOD FOR PRODUCING A RECOMBINANT PROTEIN OF INTEREST

    公开(公告)号:EP3256597B1

    公开(公告)日:2018-11-14

    申请号:EP16703769.6

    申请日:2016-02-09

    申请人: Sandoz AG

    CPC分类号: C12N9/506 C12P21/02 C12P21/06

    摘要: Disclosed is a method for producing a recombinant protein of interest, characterised in by the following steps: (a) providing a fusion protein comprising an Npro autoprotease moiety and a protein of interest moiety in inclusion bodies, (b) solubilising the fusion protein in the inclusion bodies by subjecting the inclusion bodies to a solubilisation buffer containing a detergent and wherein the solubilisation buffer contains no chaotropes or chaotropes in a concentration of less than 1.5 M urea (c) refolding the solubilised fusion protein and (d) allowing the fusion protein to be cleaved by the Npro autoprotease moiety under kosmotropic conditions, wherein the recombinant protein of interest is cleaved from the fusion protein, and (e) recovering the protein of interest.

    HEAT STABLE KERATINASE AND USE THEREOF

    公开(公告)号:EP3027746B1

    公开(公告)日:2018-10-17

    申请号:EP14831663.1

    申请日:2014-07-17

    申请人: Academia Sinica

    IPC分类号: C12N9/50

    摘要: A fusion gene encoding M. taiwanensis WR-220 keratinase is disclosed. The fusion comprises: (a) a first DNA sequence encoding a protein secretion signal peptide, located at the N-terminus of the fusion gene; (b) a second DNA sequence encoding an inhibitory domain of M. taiwanensis WR-220 keratinase, linked in translation frame with the first DNA sequence; and (c) a third DNA sequence encoding a catalytic domain of M. taiwanensis WR-220 keratinase, linked in translation frame with the second DNA sequence, wherein the fusion gene is a non-naturally occurring chimeric DNA. Also disclosed are a method for preparation of the catalytic domain of M. taiwanensis WR-220 keratinase, and use of the M. taiwanensis WR-220 keratinase.