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Mass spectrometry data display processing device and computer readable medium

A technology of data display and mass spectrometry, applied in the direction of data visualization, analysis materials, measurement devices, etc., can solve the problems of theoretical basis and reliability, and the lack of determination of which protein it originated from, etc.

Pending Publication Date: 2022-03-04
SHIMADZU SEISAKUSHO CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, in the fingerprint method, each peak that appears on the mass spectrum is not identified one by one which protein it is derived from, and there are problems in the theoretical basis and reliability of the identification

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  • Mass spectrometry data display processing device and computer readable medium
  • Mass spectrometry data display processing device and computer readable medium
  • Mass spectrometry data display processing device and computer readable medium

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Embodiment Construction

[0025] Hereinafter, modes for implementing the present invention will be described with reference to the drawings. figure 1 It is a schematic configuration diagram of the mass spectrometry system according to this embodiment. This mass spectrometry system includes a mass spectrometry unit 10 and an analysis unit 20 (as one embodiment of the mass spectrometry data display processing device according to the present invention).

[0026] The mass spectrometry unit 10 includes: an ionization unit 11 for ionizing molecules and atoms in a sample by matrix-assisted laser desorption ionization (MALDI); and a time-of-flight mass separator (TOF) 12 for The charge ratio separates various ions emitted from the ionization unit 11 . The TOF 12 includes an extraction electrode 13 for extracting ions from the ionization unit 11 and introducing them into the ion flight space in the TOF 12 , and a detector 14 for detecting the mass-separated ions in the ion flight space. However, the configura...

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Abstract

Provided are a mass spectrometry data display processing device and a computer readable medium, which present mass spectrometry of a microorganism to be detected and existing genome-related information so that the relationship between the two is easy to understand. A mass spectrum acquisition unit (41) is provided in a mass spectrum analysis data display processing device, and acquires a mass spectrum (80) of a microorganism to be detected. A genome-related information acquisition unit (42) that acquires genome-related information of a known microorganism that is estimated to be the same as or related to the microorganism under test on the basis of the mass spectrum; a correspondence determination unit (43) that determines, on the basis of the mass spectrum and the genome-related information, the correspondence between a peak on the mass spectrum and a protein expressed in a known microorganism; and a display control unit (45) that causes a display device to display, together with the mass spectrum, an identifier (81) indicating which protein a peak corresponds to, and a genome map (70) indicating the position on the genome of a gene encoding each protein.

Description

technical field [0001] The invention relates to a mass spectrometry data display and processing device. Background technique [0002] In recent years, a method for identifying microorganisms using mass spectrometry has been developed. In this method, first, a solution containing a protein extracted from a microorganism to be tested or a protein extracted by a mass spectrometer using a soft ionization method such as MALDI (Matrix Assisted Laser Desorption / Ionization: Microorganism suspensions, etc. were analyzed. In addition, "soft" ionization means an ionization method in which decomposition of high molecular weight compounds does not easily occur. Then, by comparing the obtained mass spectrum with the mass spectrum of known microorganisms, the genus, species or strain of the microorganisms to be checked can be determined. This method utilizes a mass spectrum pattern as information (that is, a fingerprint) unique to each microorganism, and is therefore called a fingerprin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G16B45/00G16B20/00G01N27/64
CPCG16B45/00G16B20/00G01N27/64H01J49/0036G16B40/10G01N33/6848G16C20/20
Inventor 岩本慎一寺本华奈江
Owner SHIMADZU SEISAKUSHO CO LTD
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