摘要:
An illumination apparatus for a microscope and an image processing apparatus using the illumination apparatus include a light source, a semi-transmissive mirror splitting a light beam from the light source into two beams of the first and second irradiation light, two excitation filters selecting the wavelengths of the first and second irradiation light, a semi-transmissive mirror synthesizing individual beams of the first and second irradiation light whose wavelengths are selected, into a single beam, a dichroic mirror directing a light beam synthesized by the semi-transmissive mirror toward a specimen and transmitting light from the specimen, an objective lens, cameras imaging fluorescent light from the specimen after being separated into fluorescent light excited by the first and second wavelengths, and an image processing section processing fluorescent images formed by imaging elements.
摘要:
Fluorescent indicators including a binding protein moiety, a donor fluorescent protein moiety, and an acceptor fluorescent protein moiety are described. The binding protein moiety has an analyte-binding region which binds an analyte and causes the indicator to change conformation upon exposure to the analyte. The donor moiety and the acceptor moiety change position relative to each other when the analyte binds to the analyte-binding region. The donor moiety and the acceptor moiety exhibit fluorescence resonance energy transfer when the donor moiety is excited and the distance between the donor moiety and the acceptor moiety is small. The indicators can be used to measure analyte concentrations in samples, such as calcium ion concentrations in cells.
摘要:
A clearing reagent according to the present invention for making a biological material transparent is a solution containing: at a concentration of 1M or more and not more than 8.5M, at least one compound selected from the group consisting of urea and urea derivatives; and glycerol at a concentration of 25 (w/v) % or more and not more than 35 (w/v) %.
摘要:
This invention relates to a method for measuring autophagy in cells, comprising using, as a probe reagent, a single fluorescent protein, to measure a change in fluorescence properties of the fluorescent probe reagent depending on pH changes associated with autophagy, thereby determining the presence or activity of autophagy, wherein the single fluorescent protein is resistant to degrading enzyme activity in the lysosome or vacuole of the cell, it is not denatured or inactivated under acidic to neutral pH environment, and it is capable of changing excitation spectra or fluorescence spectra when located under the environments of acidic region and neutral region.
摘要:
This invention relates to a probe reagent comprising, in order from the N-terminus to the C-terminus, the amino acid sequences of a fluorescent protein I, a peptide capable of terminating protein degradation (i.e., a degradation-terminating peptide), a spacer peptide, a fluorescent protein II, and a protein to be degraded, wherein the protein to be degraded is a protein degraded by the ubiquitin-proteasome system, and the probe reagent is degraded from the C-terminus, but that the degradation of the probe reagent is terminated at the degradation-terminating peptide, a nucleic acid encoding the probe reagent, and use of the probe reagent or the nucleic acid.
摘要:
An object of the present invention is to provide a method for introducing a physiologically active substance such as a gene into a cell, which introduces a physiologically active substance such as any given gene into any given cell in a view under a microscope, while significantly reducing invasiveness to the cell, and a device used for the above method. The present invention provides a method for introducing a physiologically active substance into a cell, which comprises: allowing a physiologically active substance to attach around a needle having a diameter of 500 nm or less, provided that it is able to be inserted into a cell; and inserting the above-described needle into the cell; and a microinjection device for carrying out the aforementioned method.
摘要:
The present invention provides a fluorescent protein having an amino acid sequence of the green fluorescent protein, the yellow fluorescent protein or mutants thereof wherein the 46th phenylalanine residue is substituted with a leucine residue. According to the present invention, there are provided novel GFP or YEP mutants having an excellent maturation efficacy and having a decreased sensitivity to both of H+ and CI31.
摘要:
Provided is a novel mucin-type glycoprotein and a method for producing the same. Specifically, a mucin-type glycoprotein having a repeat structure including 3 to 2000 repeating units each having an amino acid sequence represented by the formula I: Val-Xaa-Glu-Thr-Thr-Ala-Ala-Pro [wherein Xaa represents Val or Ile] (SEQ ID NO: 1), wherein one or more amino acid residues in the structure are bound to a sugar chain of one or more monosaccharides. Also provided is a composition containing the novel mucin-type glycoprotein. Further provided is a molecular weight marker containing the novel mucin-type glycoprotein.
摘要翻译:本发明提供一种新型粘蛋白型糖蛋白及其制造方法。 具体地说,具有重复结构的粘蛋白型糖蛋白,其重复结构包括3〜2000个重复单元,每个重复单元各自具有由式I表示的氨基酸序列:Val-Xaa-Glu-Thr-Thr-Ala-Ala-Pro [其中Xaa表示Val或 Ile](SEQ ID NO:1),其中结构中的一个或多个氨基酸残基与一个或多个单糖的糖链结合。 还提供含有新型粘蛋白型糖蛋白的组合物。 还提供含有新型粘蛋白型糖蛋白的分子量标记物。
摘要:
An object of an embodiment of the present invention is to provide a method with which it is possible to easily distinguish a proliferation phase of a cell cycle from a resting phase thereof in real time. The object of the embodiment of the present invention is attained by providing a method for performing phase identification of the cell cycle, the method including: visualizing one or more gene-expression products as markers whose amounts in a cell change in a cell-cycle dependent manner; and detecting the products so as to distinguish the proliferation phase of the cell cycle from the resting phase thereof.
摘要:
An object of the present invention is to provide a method for introducing a physiologically active substance such as a gene into a cell, which introduces a physiologically active substance such as any given gene into any given cell in a view under a microscope, while significantly reducing invasiveness to the cell, and a device used for the above method. The present invention provides a method for introducing a physiologically active substance into a cell, which comprises: allowing a physiologically active substance to attach around a needle having a diameter of 500 nm or less, provided that it is able to be inserted into a cell; and inserting the above-described needle into the cell; and a microinjection device for carrying out the aforementioned method.