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    • 5. 发明授权
    • Method of changing fluorescence wavelength of fluorescent protein
    • 改变荧光蛋白荧光波长的方法
    • US08278120B2
    • 2012-10-02
    • US12162460
    • 2007-01-25
    • Kyoko SutoHiromi TakenakaYasuhiro Takenaka
    • Kyoko SutoHiromi TakenakaYasuhiro Takenaka
    • G01N33/536G01N33/533C07K1/00C07K14/00C07K17/00
    • C07K14/43595
    • The present invention provides: a method of changing the fluorescence wavelength of a GFP-like fluorescent protein from copepod while maintaining recombinant expression efficiency, which comprises identifying a structural factor for determining the fluorescence wavelength thereof in the three-dimensional structure of the protein and modifying amino acid residues associated with the structural factor; and a modified fluorescent protein obtained by applying said method. For example, with regard to a GFP-like fluorescent protein from Chiridius poppei, His52 in an α helix-like secondary structure: PFLLSHCMGYGFYHF (α1 47-61) comprising a fluorescent moiety site GYG is replaced with an aromatic amino acid selected from Phe, Tyr and Trp, so as to cause a red shift of the fluorescent peak wavelength; or it is replaced with Ala, Val, Ile, Leu, Gly, Cys, Met, Ser, Thr, or Asp, Asn, Glu or Gln, so as to cause a blue shift of the fluorescence peak wavelength.
    • 本发明提供了一种在保持重组表达效率的同时维持来自桡足类的GFP样荧光蛋白的荧光波长的方法,其包括鉴定用于测定蛋白质三维结构中的荧光波长的结构因子和修饰 与结构因子相关的氨基酸残基; 和通过应用所述方法获得的修饰的荧光蛋白。 例如,关于来自Chiridius poppei的GFP样荧光蛋白,包含荧光部位部位GYG的α螺旋状二级结构的His52被替换为选自Phe的芳香族氨基酸, Tyr和Trp,以引起荧光峰值波长的红移; 或者被Ala,Val,Ile,Leu,Gly,Cys,Met,Ser,Thr或Asp,Asn,Glu或Gln替代,以使荧光峰值波长发生蓝移。
    • 6. 发明申请
    • METHOD OF CHANGING FLUORESCENCE WAVELENGTH OF FLUORESCENT PROTEIN
    • 荧光蛋白荧光波长变化的方法
    • US20090318673A1
    • 2009-12-24
    • US12162460
    • 2007-01-25
    • Kyoko SutoHiromi TakenakaYasuhiro Takenaka
    • Kyoko SutoHiromi TakenakaYasuhiro Takenaka
    • C07K1/107C07K14/435
    • C07K14/43595
    • The present invention provides: a method of changing the fluorescence wavelength of a GFP-like fluorescent protein from copepod while maintaining recombinant expression efficiency, which comprises identifying a structural factor for determining the fluorescence wavelength thereof in the three-dimensional structure of the protein and modifying amino acid residues associated with the structural factor; and a modified fluorescent protein obtained by applying said method. For example, with regard to a GFP-like fluorescent protein from Chiridius poppei, His52 in an α helix-like secondary structure: PFLLSHCMGYGFYHF (α1 47-61) comprising a fluorescent moiety site GYG is replaced with an aromatic amino acid selected from Phe, Tyr and Trp, so as to cause a red shift of the fluorescent peak wavelength; or it is replaced with Ala, Val, Ile, Leu, Gly, Cys, Met, Ser, Thr, or Asp, Asn, Glu or Gln, so as to cause a blue shift of the fluorescence peak wavelength.
    • 本发明提供了一种在保持重组表达效率的同时维持来自桡足类的GFP样荧光蛋白的荧光波长的方法,其包括鉴定用于测定蛋白质三维结构中的荧光波长的结构因子和修饰 与结构因子相关的氨基酸残基; 和通过应用所述方法获得的修饰的荧光蛋白。 例如,关于来自Chiridius poppei的GFP样荧光蛋白,包含荧光部位部位GYG的α螺旋状二级结构的His52被替换为选自以下的芳香族氨基酸:Phe, Tyr和Trp,以引起荧光峰值波长的红移; 或者被Ala,Val,Ile,Leu,Gly,Cys,Met,Ser,Thr或Asp,Asn,Glu或Gln替代,以使荧光峰值波长发生蓝移。