- Áreas de investigación
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- Biología y Biomedicina
- Grupo
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- Proteómica, Genómica y Metabolómica
- Subgroup
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- Proteómica
Protein identification using LC-ESI-MS/MS
Service general data
- Support unit: PROTEOMICA
- Institute: CENTRO NACIONAL DE BIOTECNOLOGIA
- Locality: Madrid (Madrid)
- Service's web: http://www.cnb.csic.es/index.php/es/investigacion/servicios-cientificos/proteomica
Creado en 1999, el servicio de Proteómica del CNB mantiene una plataforma tecnológica para la identificación y caracterización masiva de proteínas, ofreciendo sus servicios tanto al CNB como a investigadores externos. El análisis masivo de proteínas (LC-MS/MS) se lleva a cabo mediante cromatografía nano-HPLC multidimensional acoplada a dos espectrómetros de masas modelo Thermo Orbitrap Explorios OE240 a un instrumento MALDI TOF/TOF MS. La proteómica diferencial o cuantitativa se realiza mediante previo marcaje isotópico estable, metabólico (SILAC) o químico (TMT) en combinación con análisis LC-MS/MS. Podemos realizar análisis dirigido PRM-MS (parallel reaction monitoring), y DIA (Data Independent Acquisition) . Enriquecimiento específico de modificaciones postraduccionales, particularmente fosfopéptidos, seguidos de análisis LC-MS/MS. Análisis de gluten en alimentos mediante la caracterización de prolamina.
Protein identification using LC-ESI-MS/MS
Benefit description
Massive protein identification and characterization is performed by (mono or multidimensional) nano-HPLC chromatography coupled to a Orbitrap Exploris OE240 high-resolution mass spectrometer. The lenght of the chromatographic gradient employed (tipically, ultra-short short, medium or long) and the type of mass spectrometer used is decided based on the estimated complexity of the sample to be analyzed, as well as the expected number of proteins identified, the resolution level and mass precision required and, finally, the level of sensitivity needed. Service costs are calculated according to these parameters.| Options | Unit | Public Sector | Other customers |
|---|---|---|---|
| Analysis By LC-ESI-MSMS_HR_long gradient | € / muestra | 633.36 € | 754 € |
| Analysis By LC-ESI-MSMS_HR_short gradient | € / muestra | 297.21 € | 353.83 € |
| Analysis By LC-ESI-MSMS_HR_ultra-short gradient | € / muestra | 236.06 € | 281.02 € |
| Analysis By LC-ESI-MSMS_HR_medium gradient | € / muestra | 362.77 € | 431.87 € |
Other services
Service general data
- Support unit: PROTEÓMICA
- Institute: CENTRO DE BIOLOGIA MOLECULAR SEVERO OCHOA
- Locality: Madrid (Madrid)
- Service's web: http://www.cbm.uam.es/proteomica.htm
La investigación Proteómica implica la identificación y la caracterización de todo el perfil proteico de una célula, tejido u organismo, en un contexto espacial y temporal. El estudio incluye isoformas, mutantes, modificaciones e interacciones proteína-proteína/s. La trayectoria del Servicio de Proteómica ha sido paralela a la evolución de la comunidad científica, y sus objetivos son ofrecer soporte científico-técnico al investigador, con métodos apropiados para la preparación de la muestra y diseñando un flujo de trabajo para cada objetivo. Se utilizan todas las técnicas y equipamiento disponibles, se implementan mejoras en los protocolos, y se interpretan y analizan los resultados obtenidos. La cartera de servicios (a grupos del CBM-SO y a externos) es amplia, desde la confirmación de la secuencia de una proteína recombinante, a la cuantificación relativa de proteomas, la caracterización de modificaciones post-traduccionales y de mutaciones, de interactomas o la secuenciación De Novo
Protein identification using LC-ESI-MS/MS
Benefit description
Massive protein identification and characterization is performed by (mono or multidimensional) nano-HPLC chromatography coupled to a Orbitrap Exploris OE240 high-resolution mass spectrometer. The lenght of the chromatographic gradient employed (tipically, ultra-short short, medium or long) and the type of mass spectrometer used is decided based on the estimated complexity of the sample to be analyzed, as well as the expected number of proteins identified, the resolution level and mass precision required and, finally, the level of sensitivity needed. Service costs are calculated according to these parameters.| Options | Unit | Public Sector | Other customers |
|---|---|---|---|
| Analysis By LC-ESI-MSMS_HR_ultra-short gradient | muestra | 236.06 € | 281.02 € |
| Analysis By LC-ESI-MSMS_HR_long gradient | muestra | 633.36 € | 754 € |
| Analysis By LC-ESI-MSMS_HR_short gradient | muestra | 297.21 € | 353.83 € |
| Analysis By LC-ESI-MSMS_HR_medium gradient | muestra | 362.77 € | 431.87 € |
Other services
Service general data
- Support unit: UNIDAD DE PROTEÓMICA
- Institute: INSTITUTO DE PARASITOLOGIA Y BIOMEDICINA LOPEZ NEYRA
- Locality: Armilla (Granada)
- Service's web: http://www.ipb.csic.es/servicios/Proteomica/index.html
El principal objetivo de la Unidad es proporcionar soporte tecnológico en el análisis de proteínas y otras biomoléculas, mediante el uso de espectrometría de masas, cromatografía líquida, interferometría en biocapa y electroforesis en gel. Las diferentes prestaciones se ofrecen a Investigadores de Centros y Entidades de titularidad tanto pública como privada. Entre estas, destacar: - Determinación de masa molecular de biomoléculas - Identificación de proteínas con nLC-MS/MS - Cromatografía líquida en columna - Interferometría en biocapa (BLI) Equipamiento: - Espectrómetro de masas ESI-Ion Trap (IT) Amazon Speed ETD (Bruker) - Cromatógrafo Easy-nLC II (Thermo) - Cromatógrafo de ultra alta resolución (UPLC) Serie Nexera (Shimadzu) - FPLC AKTA Purifier (GE Healthcare) - Octet 96 RED (Sartorius) - Picador de geles ExQuest Spot Cutter (Bio-Rad) - Digestor automático DigestPro MS (Intavis AG) - Equipo electroforesis en gel (Bio-Rad)
Protein identification using LC-ESI-MS/MS
Benefit description
Protein identification is carried out from a mixture of proteins (1D gel bands, immunoprecipitations, complex proteomes, etc.). To do this, proteins are digested with an enzyme, and the resulting peptides are analyzed by RP liquid chromatography coupled to mass spectrometry (nLC-msms). Enzymatic digestion of proteins is performed either from the cutting of stained band in gel, or from previously quantified proteins in solution. After digestion and before the injection into the chromatograph, peptide extraction and/or clean-up (SPE) of the sample is performed by C18 resin. For the chromatographic separation, the nano-LC system Easy-nLC II (Proxeon) is used with a C18 column (15 cm length). The gradient duration will depend on the complexity of the samples, being 10-20 min for purified proteins, 30-60 min for simple samples (<5 proteins), 90-120 min for medium complexity (<50 proteins), and 150-180 min for complex samples (> 50 proteins). The output of the chromatograph is coupled to Ion Trap mass spectrometer (IT) Amazon Speed ETD, by a nanoelectrospray source (CaptiveSpray). The spectrometric analysis was performed in an AutoMS2 mode, acquiring a full scan (MS) followed by 3-10 MS/MS scans of the most intense signals detected in the MS scan, working with resolutions from 0,3 to 0,5 Da (depending of the scan rates). From the mass data of the fragmented peptides, a search in databases such as SwissProt, Trembl, NCBI, or others specified by the user, is done with the search engine MASCOT (Matrix Science) integrated in other software such as ProteinScape and BioTools (Bruker). Standard procedure will include: - Manually trimming the stained bands (if in-gel digestion is performed). - Proteins reduction and carbamidomethylation. - Proteins trypsin digestion. - Clean-up with C18 reverse-phase resin (SPE) (if solution digestion is performed). - Peptides chromatographic separation. Mass spectra obtainment and peptide fragmentation. - Mass data processing and protein identification in databases. - Results report. INSTRUCTIONS FOR SUBMITTING SAMPLES From proteins in GEL: 1. The user must send the gel in Milli-Q water (properly identified), stained with Blue Coomassie, Sypro Ruby, or Silver compatible with mass spectrometry. Optionally, the user can send protein cutted bands in 1.5 ml Eppendorf tubes identified with the sample name clearly labeled on the lid. The size of the bands should fit the dyed area. 2. Samples must be submitted along with the corresponding completed application form (IDENTIFICATION OF PROTEINS BY MS or MSMS REQUEST). A gel image indicating the bands to be identified must be attached. The form must indicate the requested analytical technique, as well as an estimate of the protein quantity. From proteins in SOLUTION or LYOPHILIZED: 1. Proteins in solution or lyophilized must be sent in a 0.5 ml tube identified with the sample name on the lid. 2. Samples will be delivered or sent along with the corresponding application properly filled out (IDENTIFICATION OF PROTEINS BY MS or MSMS REQUEST), where the sample concentration and solvent composition (proteins quantification of dried or lyophilized samples) must be specified. The form should indicate the technique of analysis requested, as well as the degree of sample complexity.| Options | Unit | Public Sector | Other customers |
|---|---|---|---|
| ESI-ION TRAP - Gradiente extra-corto (SIN digestión) | € / muestra | 40.77 € | 44.65 € |
| ESI - ION TRAP - Gradiente largo | € / muestra | 127.06 € | 139.16 € |
| ESI - ION TRAP - Gradiente extra-corto | €/ muestra | 61.43 € | 67.28 € |
| ESI - ION TRAP - Gradiente corto | € / muestra | 85.76 € | 93.93 € |
| ES I- ION TRAP - Gradiente medio | € / muestra | 106.79 € | 116.96 € |
Other services
- Análisis de compuestos: UPLC-UV
- Bio-Layer Interferometry
- Filtración de muestras
- Análisis de compuestos por Espectrometría de Masas: ESI by MS-QTOF, MS-ION TRAP, Orbitrap-MS, FT-ICR-MS , TSQ-MS y MALDI-TOF
- Protein Separation by HPLC
- Consultoría Experimental y Técnica
- Desalado y concentración
- Cuantificación de proteínas
Service general data
- Support unit: UNIDAD DE PROTEÓMICA
- Institute: INSTITUTO DE BIOLOGIA MOLECULAR Y CELULAR DEL CANCER DE SALAMANCA
- Locality: Salamanca (Salamanca)
- Service's web: http://www.cicancer.org/
En la Unidad de Proteómica del CIC, nos esforzamos por proporcionar a los investigadores acceso a las últimas tecnologías de análisis del proteoma. Nuestros objetivos son: ofrecer servicios de análisis utilizando un amplio espectro de técnicas para la separación de proteínas y péptidos, así como técnicas basadas en la espectrometría de masas para caracterizar y cuantificar analitos a partir de muestras biológicas complejas, y desarrollar y poner a punto nuevos métodos que se están desarrollando en proteómica. Nuestros servicios se ofrecen a toda la comunidad científica proporcionando asesoramiento técnico sobre diseño experimental proteómico y control de calidad de los procesos realizados. La propia instalación y sus protocolos experimentales cuentan con certificación desde 2006 según la norma UNE-EN-ISO 9001:2015. El sistema de gestión de la salud y la seguridad en el trabajo de las instalaciones también ha sido certificado mediante el sistema OHSAS18001 en 2006 con la transición
Protein identification using LC-ESI-MS/MS
Benefit description
Peptides are separated using nano HPLC coupled to tandem mass spectrometry (MS/MS), followed by mass sepectrometry raw data analysis. Peptide identification is performed by comparing the tandem mass spectra resulting from peptide fragmentation with theoretical spectra generated through in silico digestion of a protein database. Proteins are identified by assigning unique peptide sequences to them.| Options | Unit | Public Sector | Other customers |
|---|---|---|---|
| Gradiente largo | € / muestra | 96.82 € | 106.05 € |
| Gradiente corto | € / muestra | 55.33 € | 60.6 € |