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    • 1. 发明申请
    • METHOD FOR PREPARATION OF RECOBINANT DNA
    • 回收DNA的制备方法
    • US20110244521A1
    • 2011-10-06
    • US12674160
    • 2008-08-12
    • Takeharu NagaiIppei Kotera
    • Takeharu NagaiIppei Kotera
    • C12P19/34
    • C12N15/64C12N15/66
    • The problem to be solved in the present invention is to provide a simplified and efficiently improved DNA recombination method.The above problem can be solved with the present method for preparing a recombinant DNA by inserting a DNA fragment of interest into a vector DNA, the method comprising the step of carrying out the following reactions at the same reacting location at the substantially simultaneouse time: (a) a reaction for simultaneously cleaving a site of the vector for inserting the fragment and a DNA containing the fragment in the presence of a restriction enzyme whose DNA recognition site and DNA cleavage site are discrete; and (b) a reaction for inserting the fragment into the vector in the presence of a DNA ligase.
    • 本发明要解决的问题是提供简化且有效改进的DNA重组方法。 通过将目的DNA片段插入载体DNA中制备重组DNA的本发明的方法可以解决上述问题,该方法包括在大致同步的时间在相同的反应位置进行以下反应的步骤:( a)在DNA识别位点和DNA切割位点离散的限制性酶的存在下,同时切割用于插入片段的载体的位点和含有该片段的DNA的反应; 和(b)在DNA连接酶存在下将片段插入载体的反应。
    • 6. 发明申请
    • ULTRAMARINE FLUORESCENT PROTEIN
    • 超紫外线荧光蛋白
    • US20100167394A1
    • 2010-07-01
    • US12453000
    • 2008-08-01
    • Takeharu NagaiWataru TomosugiTomoki Matsuda
    • Takeharu NagaiWataru TomosugiTomoki Matsuda
    • C12N5/10C07K14/00C07H21/00C12N15/74
    • C07K14/43595C07K2319/60
    • The present invention provides an artificial mutant of GFP having a novel emission peak, i.e., a fluorescent protein having an emission peak at 424 nm comprising an amino acid sequence represented by SEQ ID NO: 1, in which each of the amino acid residues at the 66th position and the 175th position is replaced and at least one of the amino acid residues at the 72nd position and the 206th position is further replaced, or a fluorescent protein having an emission peak at 424 nm and a pH-independent fluorescence intensity, in which each of the amino acid residues at the 65th, 145th, 148th, 46th and/or 203rd positions is further substituted. The fluorescent protein of the invention emits fluorescence having an emission peak at 424 nm and can be visually distinguished by its ultramarine color from other fluorescent proteins. The fluorescent protein has a pH-independent fluorescence intensity which is not affected by pH changes.
    • 本发明提供具有新发射峰的GFP的人工突变体,即在424nm处具有发射峰的荧光蛋白,其包含由SEQ ID NO:1表示的氨基酸序列,其中每个氨基酸残基 第66位和第175位被置换,第72位和第206位的氨基酸残基中的至少一个被进一步置换,或者在424nm具有发射峰和不依赖于pH的荧光强度的荧光蛋白,其中 第65,第145,第148,第46和/或第203位的每个氨基酸残基被进一步取代。 本发明的荧光蛋白发射具有424nm处的发射峰的荧光,并且可以通过其来自其他荧光蛋白的群青颜色来目视辨别荧光。 荧光蛋白具有pH不依赖于荧光强度,不受pH变化的影响。
    • 8. 发明申请
    • FLUORESCENT PROTEIN
    • 荧光蛋白
    • US20090176211A1
    • 2009-07-09
    • US11719166
    • 2005-11-14
    • Takeharu NagaiAtsushi Miyawaki
    • Takeharu NagaiAtsushi Miyawaki
    • C12Q1/68C07K14/00C12N15/11C12N15/00C12N5/06
    • G01N33/5035C07K14/43595G01N33/542
    • It is an object of the present invention to provide a fluorescent protein, which allows an acceptor for fluorescence resonance energy transfer (FRET) to appear in a stimulating light-dependent manner, thereby enabling the marking of any given cell organelle, cells, or tissues, with multiple colors. The present invention provides a fluorescent protein which consists of a fused protein of a donor fluorescent protein and an acceptor fluorescent protein, wherein before irradiation with stimulating light, the donor protein is able to emit fluorescence as a result of irradiation of the donor protein with excitation light; and after irradiation with stimulating light, intramolecular FRET occurs between the donor fluorescent protein and the acceptor fluorescent protein as a result of irradiation of the donor protein with excitation light, and the acceptor protein is able to emit fluorescence, and wherein the fluorescence of the donor protein and the fluorescence of the acceptor protein have wavelengths that are different from each other.
    • 本发明的目的是提供一种荧光蛋白,其允许荧光共振能量转移受体(FRET)以刺激光依赖的方式出现,从而能够标记任何给定的细胞器,细胞或组织 ,具有多种颜色。 本发明提供了由供体荧光蛋白的融合蛋白和受体荧光蛋白组成的荧光蛋白,其中在用刺激光照射之前,供体蛋白能够通过激发照射供体蛋白而发出荧光 光; 并且在用刺激光照射后,作为供体蛋白质与激发光照射的结果,在供体荧光蛋白和受体荧光蛋白之间发生分子内FRET,并且受体蛋白能够发射荧光,并且其中供体的荧光 蛋白质,受体蛋白质的荧光具有彼此不同的波长。