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公开(公告)号:US20120329992A1
公开(公告)日:2012-12-27
申请号:US13598119
申请日:2012-08-29
申请人: Jan JOHANSSON , Göran HJÄLM , Margareta Stark , Anna Rising , Stefan Grip , Wilhelm Engström , My Hedhammar
发明人: Jan JOHANSSON , Göran HJÄLM , Margareta Stark , Anna Rising , Stefan Grip , Wilhelm Engström , My Hedhammar
IPC分类号: C07K14/435 , C12P21/02 , C12N15/62 , C07K19/00 , C12N15/12
CPC分类号: C07K14/43518 , A61K35/12 , A61K47/42 , D01F4/00
摘要: The invention provides an isolated major ampullate spidroin protein, which consists of from 150 to 420 amino acid residues and is defined by the formula REP-CT. REP is a repetitive, N-terminally derived protein fragment having from 80 to 300 amino acid residues. CT is a C-terminally derived protein fragment having from 70 to 120 amino acid residues. The invention further provides an isolated fusion protein consisting of a first protein fragment, which is a major ampullate spidroin protein, and a second protein fragment comprising a fusion partner and a cleavage agent recognition site. The first protein fragment is coupled via said cleavage agent recognition site to the fusion partner. The invention also provides a method of producing a major ampullate spidroin protein and polymers thereof.