WO2005100974A1 - 高分子分析装置および高分子分析方法 - Google Patents
高分子分析装置および高分子分析方法 Download PDFInfo
- Publication number
- WO2005100974A1 WO2005100974A1 PCT/JP2005/007063 JP2005007063W WO2005100974A1 WO 2005100974 A1 WO2005100974 A1 WO 2005100974A1 JP 2005007063 W JP2005007063 W JP 2005007063W WO 2005100974 A1 WO2005100974 A1 WO 2005100974A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- infrared laser
- wavelength
- sample
- laser
- analysis method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J49/00—Particle spectrometers or separator tubes
- H01J49/26—Mass spectrometers or separator tubes
- H01J49/34—Dynamic spectrometers
- H01J49/36—Radio frequency spectrometers, e.g. Bennett-type spectrometers, Redhead-type spectrometers
- H01J49/38—Omegatrons ; using ion cyclotron resonance
Definitions
- the present invention relates to a polymer analyzer and a method for analyzing a polymer. More specifically, the present invention
- the present invention also relates to an apparatus and a method for analyzing a polymer by cutting a biopolymer by an infrared laser and performing mass spectrometry on the cut fragment.
- a degrading enzyme is used as a method for cutting a polymer.
- IRMPD i Photon Dissociation
- the infrared laser used here has a fixed wavelength of 10.6 ⁇ m, and it has been difficult to change a cut portion in a polymer.
- An object of the present invention is to obtain various fragments by performing mass spectrometry by cutting a polymer, thereby obtaining various fragments, and performing mass spectrometry to obtain various fragments. It is an object of the present invention to provide an apparatus and a method capable of analyzing a polymer.
- the present inventors irradiate a polymer with an infrared laser having a changed wavelength, The inventors have found that the above problems can be solved, and have completed the present invention.
- the present invention provides an ion trap section for holding an ionized sample, and irradiating the ionized sample held in the ion trap section with a wavelength-tunable infrared laser to irradiate the sample.
- a polymer analyzer comprising: a laser output unit that outputs an infrared laser to be cut; and a mass analysis unit that performs mass analysis of the sample cut by the infrared laser.
- the present invention is the analyzer described above, wherein the wavelength-variable infrared laser output unit can change the wavelength in a range of 3.5 to 9.6 m.
- the present invention is the analyzer described above, wherein the wavelength-variable infrared laser output unit can change the wavelength in a range of 5 to 9.6 m.
- the present invention is the analyzer described above, wherein the infrared laser is a pulse laser.
- the present invention is the analyzer described above, wherein the infrared laser output unit is a free electron laser output device.
- the present invention is the analyzer described above, wherein the ion trap section is an ultra-high vacuum ion trap.
- the present invention is the above-described analyzer, wherein the mass spectrometer is a Fourier transform ion cyclotron resonance mass spectrometer.
- the present invention is the above-mentioned analyzer, wherein the sample is at least one selected from the group consisting of proteins, peptides, saccharides, polynucleotides and oligonucleotides.
- the present invention provides an ion trapping step for holding an ionized sample, and irradiating the ionized sample held in the ion trapping step with an infrared laser having a variable wavelength to cut the sample.
- a polymer analysis method comprising: an infrared laser irradiation step; and a mass analysis step of performing mass analysis of the sample cut in the infrared laser irradiation step.
- the present invention is the above analysis method, characterized in that the wavelength-tunable infrared laser can change the wavelength in a range of 3.5 to 9.6 m.
- the present invention is the above-mentioned analysis method, characterized in that the tunable infrared laser can change the wavelength within a range of 5 to 9.6 m.
- the present invention is the above analysis method, wherein the infrared laser is a pulse laser.
- the present invention is the analysis method described above, wherein the infrared laser is a free electron laser.
- the present invention is the above analysis method, wherein the ion trap step is performed by an ultrahigh vacuum ion trap.
- the present invention is the above-mentioned analysis method, characterized in that the mass analysis is performed by a Fourier transform ion cyclotron resonance mass spectrometer.
- the present invention is the above-mentioned analysis method, characterized in that the sample is at least one selected from the group consisting of proteins, peptides, saccharides, polynucleotides and oligonucleotides.
- FIG. 1 is a diagram showing a configuration of a polymer analyzer of the present invention.
- FIG. 2 is a diagram showing an optical system when a free electron laser is used as a tunable infrared laser.
- Fig. 3 is a diagram showing the FTMS mass spectrum of a substance P ion using a wavelength tunable laser.
- the wavelength dependence of the wavelength range from 5.7 / ⁇ to 9.5m at intervals of 0. Is a fragment analysis performed by
- FIG. 4 is a diagram showing a relationship between a wavelength irradiated to substance P ions and observed ions.
- FIG. 5 is a diagram showing an FTMS mass spectrometer using a tunable laser of a sialyl Lewis X ion.
- FIG. 6 is a diagram showing the relationship between the wavelength irradiated to sialyl Lewis X ions and the observed ions.
- FIG. 7 is a diagram showing one laser light intensity for each wavelength of the wavelength-tunable infrared laser oscillator in the example. Explanation of reference numerals
- FIG. 1 is a diagram showing the configuration of the polymer analyzer of the present invention.
- a polymer analyzer 10 of the present invention includes a laser output unit 1, a lens 2, a power meter 3, a mass analysis unit 4, and an ionization unit 5, and the mass analysis unit 4 includes an ion trap unit 8.
- the ionization section 5 ionizes a polymer sample (not shown), and the ionized sample is held in the ion trap section 8.
- the infrared laser 12 output from the laser output unit 1 passes through the lens 2 and the power meter 3 and irradiates the sample held in the ion trap unit 8. Then, the polymer sample is cut by being irradiated with the laser.
- the laser output unit 1 can change the wavelength of the laser to be output, and by changing the wavelength, it is possible to change the cut portion in the polymer. Then, the molecular weight of the cut sample is measured by the mass spectrometer 4. Therefore, by changing the wavelength of the infrared laser, various fragments of the polymer can be obtained, and by mass spectrometry, the polymer can be efficiently analyzed.
- the infrared laser output unit used in the present invention is not particularly limited as long as it can change the wavelength, but a free electron laser output device is a preferred example. Can be mentioned.
- the wavelength range of the laser that changes the wavelength is not particularly limited as long as it is a wavelength that can cut the polymer, but a preferred range is 3.5 to 9.6 m, and more preferably, The wavelength range is 5 to 9.6 m.
- the wavelength region of 5 to 9.6 m is also called a fingerprint region, which is a region exhibiting infrared absorption characteristic of various biopolymers. Therefore, by irradiating an infrared laser having a wavelength in the fingerprint region, the polymer can be cut at a portion specific to the target polymer.
- the infrared laser used in the present invention is preferably a pulse laser.
- the pulse width in this case may be a force appropriately determined depending on the polymer to be cut or the wavelength of the infrared laser to be used, for example, a pulse width of 1 femtosecond to 100 nanoseconds.
- Irradiation energy of the infrared laser used in the present invention is not particularly limited as long as it can cut a polymer, and examples thereof include 1 to: LOOOmJ, and preferably 10 to 500mJ.
- the ion trap portion used in the present invention is not particularly limited as long as it can hold an ionized sample and can irradiate a laser, but an ultrahigh vacuum type ion trap is preferred! Examples can be given.
- the mass spectrometer used in the present invention is not particularly limited as long as it can perform mass spectrometry of the cut sample.
- a time-of-flight mass spectrometer TOF
- a Fourier transform on-cyclotron A resonance mass spectrometer can be used.
- the polymer used in the present invention is not particularly limited, but preferred examples thereof include biopolymers such as proteins, peptides, saccharides, polynucleotides, and oligonucleotides.
- the ionizing portion as long as it can ionize a polymer, and examples thereof include MALDI and ESI.
- FIG. 2 is a diagram showing an optical system when a free electron laser is used as the wavelength variable infrared laser.
- FIG. 2A shows a front view
- FIG. 2B shows a top view.
- the infrared laser 12 emitted from the exit 15 of the free electron laser is applied to mirrors M1 to M8. Therefore, reflection is repeated, and the light is incident on the mass analyzer 4 through the lens 2.
- the mass spectrometry unit 4 includes an ion trap unit (not shown), and the ion trap unit holds an ionized polymer sample. Then, the polymer sample is irradiated with the laser 12.
- the substance P (SEQ ID NO: 1, SUBP) was cut by the following procedure using the polymer analyzer of FIG.
- Substance P is known as a neuropeptide which is a chemical messenger released from nerve cells, and its amino acid sequence is represented by "Arg-Pro-Lys-Pro-Gln-Gln-Phe- Phe—Gly—Leu—Met ”.
- Substance P powder (manufactured by SIGMA) was dissolved in MilliQ water to obtain a 3.7 pmol / ⁇ L solution, and 2 L of the solution was sprayed with ultra-high vacuum ion trap in a mass spectrometer using a nano-ESI spray. Then, substance P was trapped as ions.
- a wavelength-tunable infrared laser was set to a specific oscillation wavelength, and the measurement was performed by irradiating the trapped ions with the laser light twice for three minutes, and the accumulated laser light was accumulated.
- the substance P was identified by performing mass analysis of the collected data
- the mass spectrometry was performed using a Fourier transform ion cyclotron resonance mass spectrometer (FTMS 4.7T manufactured by Bruker Daltonics).
- FTMS 4.7T Fourier transform ion cyclotron resonance mass spectrometer
- the laser used is characterized by an extremely short micropulse with a pulse width of about 2 ps, which is output every 350 ps. .
- a macropulse of 1 ⁇ s width was formed from these micropulses, and the macropulse was output at 5 Hz.
- Da has a b2 + peak that is bivalently charged due to cleavage of the peptide bond between Leu and Met.
- FIG. 4 shows the relationship between the wavelength of the laser irradiated to the substance P ions and the observed ions.
- the fragment peak (b / ⁇ , b 2+ ) detected by cleavage of the peptide bond between Pro—Lys and Leu—Met was 5.9 to 8.5. / zm wavelength range
- Fig. 6 shows the relationship between the wavelength of the laser irradiated on the Cyaryl Lewis X ions and the observed ions.
- These also have a parent ionic force corresponding to the peak at which the glycosidic bond of N-acetylneuraminic acid (NeuAc) -fucose (Fuc) has been cleaved.
- FIG. 7 shows the laser beam intensity for each wavelength of the tunable infrared laser oscillator used in the above experiment.
- the apparatus and method of the present invention when irradiating a polymer with an infrared laser and cutting, the wavelength of the infrared laser is changed to change the cut portion in the polymer. Can be. As a result, various fragments of the polymer can be obtained, and the polymer can be efficiently analyzed by mass spectrometry.
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004-120804 | 2004-04-15 | ||
| JP2004120804A JP4251557B2 (ja) | 2004-04-15 | 2004-04-15 | 高分子分析装置および高分子分析方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2005100974A1 true WO2005100974A1 (ja) | 2005-10-27 |
Family
ID=35150116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2005/007063 Ceased WO2005100974A1 (ja) | 2004-04-15 | 2005-04-12 | 高分子分析装置および高分子分析方法 |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP4251557B2 (ja) |
| WO (1) | WO2005100974A1 (ja) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4854590B2 (ja) | 2007-05-11 | 2012-01-18 | キヤノン株式会社 | 飛行時間型2次イオン質量分析装置 |
| GB2531336B (en) | 2014-10-17 | 2019-04-10 | Thermo Fisher Scient Bremen Gmbh | Method and apparatus for the analysis of molecules using mass spectrometry and optical spectroscopy |
| KR102566606B1 (ko) * | 2021-11-19 | 2023-08-16 | 울산과학기술원 | 표면-계면 절단 분석시스템 기반 고분자 소재 분석 방법 |
-
2004
- 2004-04-15 JP JP2004120804A patent/JP4251557B2/ja not_active Expired - Fee Related
-
2005
- 2005-04-12 WO PCT/JP2005/007063 patent/WO2005100974A1/ja not_active Ceased
Non-Patent Citations (4)
| Title |
|---|
| COLORADO A. ET AL: "Use of Infrared Multiphoton Photodissociation with SWIFT for Electrospray Ionization and Laser Desorption Applications in a Quadrupole Ion Trap Mass Spectrometer.", ANALYTICAL CHEMISRY., vol. 68, no. 22, 15 November 1996 (1996-11-15), pages 4033 - 4043, XP000634995 * |
| LITTLE D.P. ET AL: "Infrared Multiphoton Dissociation of Large Multiply Charged Ions for Biomolecule Sequencing.", ANALYTICAL CHEMISTRY., vol. 66, no. 18, 15 September 1994 (1994-09-15), pages 2809 - 2815, XP002927355 * |
| MAITRE P. ET AL: "Ultrasensitive spectroscopy of ionic reactive intermediates in the gas phase performed with the forst coupling on a IR FEL with an FTICR-MS.", NUCLEAR INSTRUMENTS AND METHODS IN PHYSICS RESEARCH., vol. 507, no. 1-2, 11 July 2003 (2003-07-11), pages 541 - 546, XP004440921 * |
| MOGUSHI K. ET AL: "FTMS-FEL-SUT ni yoru IRMPD Spectrum Sokutei Sochi no Kaihatsu.", vol. 52, 2004, pages 60 - 61, XP002992500 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2005300480A (ja) | 2005-10-27 |
| JP4251557B2 (ja) | 2009-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6124416B2 (ja) | 質量分析計におけるタンパク質及びペプチドの光解離 | |
| JP3580553B2 (ja) | 飛行時間型質量分析を利用した生体分子の分析 | |
| US20100207023A1 (en) | Apparatus and method of photo fragmentation | |
| US20100123075A1 (en) | Ultrafast laser system for biological mass spectrometry | |
| CA2574965A1 (en) | Multiplex data acquisition modes for ion mobility-mass spectrometry | |
| US20030209665A1 (en) | Method and apparatus for ion mobility spectrometry | |
| Louris et al. | Photodissociation in a quadrupole ion trap mass spectrometer using a fiber optic interface | |
| WO2007109672A2 (en) | Coupled electrostatic ion and electron traps for electron capture dissociation-tandem mass spectrometry | |
| US8389931B2 (en) | Method for sequencing peptides and proteins using metastable-activated dissociation mass spectrometry | |
| JP4214925B2 (ja) | 質量分析装置 | |
| JP4251557B2 (ja) | 高分子分析装置および高分子分析方法 | |
| Duffy et al. | Fragmentation of neutral amino acids and small peptides by intense, femtosecond laser pulses | |
| Gabryelski et al. | Photoinduced dissociation of electrospray‐generated ions in an ion trap/time‐of‐flight mass spectrometer using a pulsed CO2 laser | |
| WO2024089438A1 (en) | A method for analysing a membrane protein | |
| Gnaser et al. | Optimized alkali-metal cationization in secondary ion mass spectrometry of polyethylene glycol oligomers with up to m/z 10000: dependence on cation species and concentration | |
| Krutilin et al. | Peptide Mass spectra from micrometer-thick ice films produced with femtosecond pulses | |
| Zhu et al. | Applications of femtochemistry to proteomic and metabolomic analysis | |
| US20250125136A1 (en) | Laser Induced Fragmentation for MRM Analysis | |
| JP3928043B2 (ja) | 生体高分子光切断装置および生体高分子光切断方法 | |
| GB2639752A (en) | Apparatus and method for generation of ions from sample material | |
| Kempkes | Reaction Mechanisms of Collision and Electron Induced Peptide Dissociation Revealed by Ion Spectroscopy | |
| Dantus et al. | Ultrafast Ionization and Fragmentation: From Small Molecules to Proteomic Analysis | |
| Hawes | Linking lasers and mass spectrometers: Investigating CID+ UV as a new fragmentation tool for analytical chemistry of biomolecules | |
| Kalcic et al. | Femtosecond Laser-Induced Ionization/Dissociation of Amino Acids and their Derivatives | |
| Kalcic et al. | Femtosecond laser scalpel technology for proteomic mass spectrometry |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AE AG AL AM AT AU AZ BA BB BG BR BW BY BZ CA CH CN CO CR CU CZ DE DK DM DZ EC EE EG ES FI GB GD GE GH GM HR HU ID IL IN IS KE KG KM KP KR KZ LC LK LR LS LT LU LV MA MD MG MK MN MW MX MZ NA NI NO NZ OM PG PH PL PT RO RU SC SD SE SG SK SL SM SY TJ TM TN TR TT TZ UA UG US UZ VC VN YU ZA ZM ZW |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): GM KE LS MW MZ NA SD SL SZ TZ UG ZM ZW AM AZ BY KG KZ MD RU TJ TM AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LT LU MC NL PL PT RO SE SI SK TR BF BJ CF CG CI CM GA GN GQ GW ML MR NE SN TD TG |
|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| WWW | Wipo information: withdrawn in national office |
Country of ref document: DE |
|
| 122 | Ep: pct application non-entry in european phase |