1
|
Logerot E, Perrin C, Ladner Y, Aubriet F, Carré V, Enjalbal C. Quantitating α-amidated peptide degradation by separative technologies and ultra-high resolution mass spectrometry. Talanta 2023. [DOI: 10.1016/j.talanta.2022.124036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
2
|
Estrada P, Bañares-Hidalgo Á, Pérez-Gil J. Disulfide bonds in the SAPA domain of the pulmonary surfactant protein B precursor. J Proteomics 2022; 269:104722. [PMID: 36108905 DOI: 10.1016/j.jprot.2022.104722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Revised: 08/31/2022] [Accepted: 09/06/2022] [Indexed: 10/14/2022]
Abstract
The disulfide bonds formed in the SAPA domain of a recombinant version of the NH2-terminal propeptide (SP-BN) from the precursor of human pulmonary surfactant protein B (SP-B) were identified through sequential digestion of SP-BN with GluC/trypsin or thermolysin/GluC, followed by mass spectrometry (MS) analysis. MS spectra allowed identification of disulfide bonds between Cys32-Cys49 and Cys40-Cys55, and we propose a disulfide connectivity pattern of 1-3 and 2-4 within the SAPA domain, with the Cys residues numbered according to their position from the N-terminus of the propeptide sequence. The peaks with m/z ∼ 2136 and ∼ 1780 in the MS spectrum of the GluC/trypsin digest were assigned to peptides 24AWTTSSLACAQGPE37 and 45QALQCR50 linked by Cys32-Cys49 and 38FWCQSLE44 and 51ALGHCLQE58 linked by Cys40-Cys55 respectively. Tandem mass spectrometry (MS/MS) analysis verified the position of the bonds. The results of the series ions, immonium ions and internal fragment ions were all compatible with the proposed 1-3/2-4 position of the disulfide bonds in the SAPA domain. This X-pattern differs from the kringle-type found in the SAPB domain of the SAPLIP proteins, where the first Cys in the sequence links to the last, the second to the penultimate and the third to the fourth one. Regarding the SAPB domain of the SP-BN propeptide, the MS analysis of both digests identified the bond Cys100-Cys112, numbered 7-8, which is coincident with the bond position in the kringle motif. SIGNIFICANCE: The SAPLIP (saposin-like proteins) family encompasses several proteins with homology to saposins (sphingolipids activator proteins). These are proteins with mainly alpha-helical folds, compact packing including well conserved disulfide bonds and ability to interact with phospholipids and membranes. There are two types of saposin-like domains termed as Saposin A (SAPA) and Saposin B (SAPB) domains. While disulfide connectivity has been well established in several SAPB domains, the position of disulfide bonds in SAPA domains is still unknown. The present study approaches a detailed proteomic study to determine disulfide connectivity in the SAPA domain of the precursor of human pulmonary surfactant-associated protein SP-B. This task has been a challenge requiring the combination of different sequential proteolytic treatments followed by MS analysis including MALDI-TOF and tandem mass MS/MS spectrometry. The determination for first time of the position of disulfide bonds in SAPA domains is an important step to understand the structural determinants defining its biological functions.
Collapse
Affiliation(s)
- Pilar Estrada
- Dept. Biochemistry and Molecular Biology, Faculty of Biology, Complutense University, 28040 Madrid, Spain
| | - Ángeles Bañares-Hidalgo
- Dept. Biochemistry and Molecular Biology, Faculty of Biology, Complutense University, 28040 Madrid, Spain
| | - Jesús Pérez-Gil
- Dept. Biochemistry and Molecular Biology, Faculty of Biology, Complutense University, 28040 Madrid, Spain.
| |
Collapse
|
3
|
Abstract
Exposure to organophosphorus pesticides (OP) can have chronic adverse effects that are independent of inhibition of acetylcholinesterase, the classic target for acute OP toxicity. In pure proteins, the organophosphorus pesticide chlorpyrifos oxon induces a cross-link between lysine and glutamate (or aspartate) with loss of water. Tubulin is particularly sensitive to OP-induced cross-linking. Our goal was to explore OP-induced cross-linking in a complex protein sample, MAP-rich tubulin from Sus scrofa and to test 8 OP for their capacity to promote isopeptide cross-linking. We treated 100 μg of MAP-rich tubulin with 100 μM chlorpyrifos, chlorpyrifos oxon, methamidophos, paraoxon, diazinon, diazoxon, monocrotophos, or dichlorvos. Each sample was separated using sodium dodecyl sulfate-polyacrylamide gel electrophoresis and stained with Coomassie blue. Five gel slices (at about 30, 50, 150, and 300 kDa, and the top of the separating gel) were removed from the lanes for each of the eight OP samples and from untreated control lanes. These gel slices were subjected to in-gel trypsin digestion. MSMS fragmentation spectra of the tryptic peptides were examined for isopeptide cross-links. Sixteen spectra yielded convincing evidence for isopeptide cross-linked peptides. Ten were from the chlorpyrifos oxon reaction, 1 from dichlorvos, 1 from paraoxon, 1 from diazinon, and 3 from diazoxon. It was concluded that catalysis of protein cross-linking is a general property of organophosphorus pesticides and pesticide metabolites. Data are available via ProteomeXchange with identifier PXD034529.
Collapse
Affiliation(s)
- Lawrence M Schopfer
- Eppley Institute, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| | - Seda Onder
- Eppley Institute, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States.,Department of Biochemistry, School of Pharmacy, Hacettepe University, Ankara 06100, Turkey
| | - Oksana Lockridge
- Eppley Institute, University of Nebraska Medical Center, Omaha, Nebraska 68198, United States
| |
Collapse
|
4
|
Dichlorvos-induced formation of isopeptide crosslinks between proteins in SH-SY5Y cells. Anal Biochem 2022; 655:114844. [PMID: 35961399 PMCID: PMC10368009 DOI: 10.1016/j.ab.2022.114844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 07/17/2022] [Accepted: 08/01/2022] [Indexed: 11/01/2022]
Abstract
Chlorpyrifos oxon catalyzes the crosslinking of proteins via an isopeptide bond between lysine and glutamic acid or aspartic acid in studies with purified proteins. Our goal was to determine the crosslinking activity of the organophosphorus pesticide, dichlorvos. We developed a protocol for examining crosslinks in a complex protein mixture consisting of human SH-SY5Y cells exposed to 10 μM dichlorvos. The steps in our protocol included immunopurification of crosslinked peptides by binding to anti-isopeptide antibody 81D1C2, stringent washing of the immobilized complex, release of bound peptides from Protein G agarose with 50% acetonitrile 1% formic acid, liquid chromatography tandem mass spectrometry on an Orbitrap Fusion Lumos mass spectrometer, Protein Prospector searches of mass spectrometry data, and manual evaluation of candidate crosslinked dipeptides. We report a low quantity of dichlorvos-induced KD and KE crosslinked proteins in human SH-SY5Y cells exposed to dichlorvos. Cells not treated with dichlorvos had no detectable KD and KE crosslinked proteins. Proteins in the crosslink were low abundance proteins. In conclusion, we provide a protocol for testing complex protein mixtures for the presence of crosslinked proteins. Our protocol could be useful for testing the association between neurodegenerative disease and exposure to organophosphorus pesticides.
Collapse
|
5
|
Wong HTK, Chen X, Zhang S, Lui TY, Hu D, Chan TWD. Tandem Mass Spectrometry for Structural Characterization of Doubly-Charged N-Linked Glycopeptides. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2022; 33:1458-1464. [PMID: 35762588 DOI: 10.1021/jasms.2c00143] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Three dissociation methods, including collision-induced dissociation (CID), electron capture dissociation (ECD), and electronic excitation dissociation (EED), were systematically compared for structural characterization of doubly charged glycopeptide. CID produced distinctively different tandem mass spectra for glycopeptide adducted with different charge carriers. Protonated species produced mainly glycosidic cleavages in high abundance. CID of magnesiated glycopeptide formed more cross-ring cleavages, whereas doubly sodiated species produced cleavages at both glycan and peptide moieties. The effect of charge carriers on the fragmentation in ECD and EED was lower than that in CID. ECD produced mainly peptide backbone cleavages but limited cleavages at the glycan moiety, whereas EED of glycopeptide resulted in extensive fragmentation throughout the molecular ion regardless of the charge carriers. Magnesiated species gave, however, more cross-ring cleavages than other charge carriers did. These results demonstrated that EED of magnesiated species could be used as a one-step dissociation method for comprehensive structural analysis of glycopeptides.
Collapse
Affiliation(s)
- H-T Kitty Wong
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, Special Administrative Region, P. R. China
| | - Xiangfeng Chen
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, Special Administrative Region, P. R. China
- School of Pharmaceutical Science, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong 250014, P. R. China
| | - Simin Zhang
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, Special Administrative Region, P. R. China
| | - T-Y Lui
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, Special Administrative Region, P. R. China
| | - D Hu
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, Special Administrative Region, P. R. China
| | - T-W Dominic Chan
- Department of Chemistry, The Chinese University of Hong Kong, Hong Kong, Special Administrative Region, P. R. China
| |
Collapse
|
6
|
Logerot E, Cazals G, Memboeuf A, Enjalbal C. Revealing C-terminal peptide amidation by the use of the survival yield technique. Anal Biochem 2022; 655:114823. [DOI: 10.1016/j.ab.2022.114823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2022] [Revised: 07/13/2022] [Accepted: 07/14/2022] [Indexed: 11/16/2022]
|
7
|
Fernandez B, Armengaud J, Subra G, Enjalbal C. MALDI‐MS/MS of N‐Terminal TMPP‐Acyl Peptides: A Worthwhile Tool to Decipher Protein N‐Termini. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101549] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bernard Fernandez
- IBMM Université de Montpellier, CNRS, ENSCM 34293 Montpellier France
- Université Paris-Saclay, CEA, INRAE Département Médicaments et Technologies pour la Santé (DMTS) SPI 30200 Bagnols-sur-Cèze France
- Present address: CIRAD, UMR ASTRE 34398 Montpellier France
| | - Jean Armengaud
- Université Paris-Saclay, CEA, INRAE Département Médicaments et Technologies pour la Santé (DMTS) SPI 30200 Bagnols-sur-Cèze France
| | - Gilles Subra
- IBMM Université de Montpellier, CNRS, ENSCM 34293 Montpellier France
| | | |
Collapse
|
8
|
Goyal R, Jerath G, Chandrasekharan A, Christian Y, Kumar TRS, Ramakrishnan V. Molecular hybridization combining tumor homing and penetrating peptide domains for cellular targeting. Drug Deliv Transl Res 2021; 12:1285-1292. [PMID: 34333729 DOI: 10.1007/s13346-021-01035-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/18/2021] [Indexed: 10/20/2022]
Abstract
A complete peptide-based drug delivery unit has been designed with a tumor homing domain chemically linked to a syndiotactic cell-penetrating domain. The designed peptides were synthesized, characterized, and tested in vitro for cellular uptake and cytotoxicity evaluation. The differential uptake, cellular internalization, negligible hemotoxicity, selective toxicity to MDA-MB-231 breast cancer cells, and the superior penetration in three-dimensional MDA-MB-231 tumorospheres confirm their utility as a promising delivery vector.
Collapse
Affiliation(s)
- Ruchika Goyal
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Gaurav Jerath
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - Aneesh Chandrasekharan
- Rajiv Gandhi Centre for Biotechnology, Cancer Research Program-1, Thiruvananthapuram, 695014, Kerala, India
| | - Yvonne Christian
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India
| | - T R Santhosh Kumar
- Rajiv Gandhi Centre for Biotechnology, Cancer Research Program-1, Thiruvananthapuram, 695014, Kerala, India
| | - Vibin Ramakrishnan
- Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India.
| |
Collapse
|
9
|
Logerot E, Enjalbal C. Dissociation Pattern of Sodiated Amide Peptides as a Tool for De Novo Sequencing. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2020; 31:2328-2337. [PMID: 33064467 DOI: 10.1021/jasms.0c00269] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
As part of the de novo sequencing issue, new approaches have to be found to sequence small natural peptides (<15-20 residues), which often present amino acid compositions, inducing merely singly charged species, that are quite difficult to thoroughly fragment under low-energy activation conditions in MS/MS experiments. Cationization by alkali metals, like Na+, followed by collision-induced dissociations (CID) or the postsource metastable decay (PSD) of such cationized molecular ions was found to improve the sequence coverage of native peptides through the formation of [bn-1 + Na + OH]+ ions issued from C-terminal residue exclusion. Concerned by the identification of peptides with a C-terminal amide, the fragmentation pattern of their sodiated molecular ions was investigated. In contrast to the peptides featuring unmodified C-termini, the C-terminal loss did not occur, with the amide function triggering different fragmentation pathways. However, several residues, such as aspartic acid (D), glutamic acid (E), and arginine (R), influenced the dissociation of fixed-charge sodiated ions similarly to protonated peptides; more surprisingly, serine (S), threonine (T), and tyrosine (Y), which exhibit a hydroxyl function on their side chains, showed a very peculiar behavior that could help de novo peptide sequencing.
Collapse
Affiliation(s)
- Elodie Logerot
- IBMM, CNRS, ENSCM, University of Montpellier, 34095 Montpellier, France
| | | |
Collapse
|
10
|
Cautereels J, Van Hee N, Chatterjee S, Van Alsenoy C, Lemière F, Blockhuys F. QCMS 2 as a new method for providing insight into peptide fragmentation: The influence of the side-chain and inter-side-chain interactions. JOURNAL OF MASS SPECTROMETRY : JMS 2020; 55:e4446. [PMID: 31652378 DOI: 10.1002/jms.4446] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 09/12/2019] [Accepted: 09/21/2019] [Indexed: 06/10/2023]
Abstract
The identification of peptides and proteins from tandem mass spectra is a difficult task and multiple tools have been developed to aid this identification. We present a new method called quantum chemical mass spectrometry for materials science (QCMS2 ), which is based on quantum chemical calculations of bond orders, reaction, and transition-state energies at the DFT/B3LYP/6-311+G* level of theory. The method was used to describe the fragmentation pathways of five X-His-Ser tripeptides with X = Asn, Asp, Glu, Ser, and Trp, thereby focusing on the influence of the side chain and inter-side-chain interactions on the fragmentation. The main features in the mass spectra of the five tripeptides were correctly reproduced, and a number of fragments were assigned to fragmentations involving the side chain and the influence of inter-side-chain interactions. Product ion spectra were recorded to evaluate the capabilities and limitations of QCMS2 and a number of conventional tools.
Collapse
Affiliation(s)
- Julie Cautereels
- Department of Chemistry, University of Antwerp, Antwerp, Belgium
| | - Nils Van Hee
- Department of Chemistry, University of Antwerp, Antwerp, Belgium
| | - Sneha Chatterjee
- Department of Chemistry, University of Antwerp, Antwerp, Belgium
| | | | - Filip Lemière
- Department of Chemistry, University of Antwerp, Antwerp, Belgium
| | - Frank Blockhuys
- Department of Chemistry, University of Antwerp, Antwerp, Belgium
| |
Collapse
|
11
|
Wang Y, Nakajima E, Okamura Y, Wang D, Okumura N, Takao T. Metastable decomposition at the peptide C-terminus: Possible use in protein identification. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2020; 34:e8734. [PMID: 32031718 DOI: 10.1002/rcm.8734] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2019] [Revised: 12/14/2019] [Accepted: 01/17/2020] [Indexed: 06/10/2023]
Abstract
RATIONALE The b n-1 ion of a peptide, as well as a [b n-1 + 18] ion, can be observed not only as normal product ions, but also as prominent metastable ions in a reflectron-embedded matrix-assisted laser desorption ionization time-of-flight spectrometer. The m/z values for the peaks are slightly shifted compared with the ordinary product ions and appear as relatively broad peaks, which permits them to be discriminated from other ions. METHODS A standard protein mixture and gel-derived proteins digested with LysN protease, which cleaves peptide linkages in proteins at the N-terminal side of Lys residues, were examined. The collected data were used for protein identification using in-house software, iD-plus (http://coco.protein.osaka-u.ac.jp/id-plus/), which was developed for searching for proteins in the peptide database, based on enzyme specificity (N-terminal Lys in this study), peptide masses and C-terminal amino acids. RESULTS The b n-1 as well as [b n-1 + 18] ions were observed as broad ion peaks for all of the peptides (86 peptides) examined in this study. In silico calculations using the database of LysN digested peptides (11 969 470), created from 553 941 protein sequences (SwissProt: 2017_03), indicate that the use of no less than four peptides permits a protein to be identified without the need of any probability-based scoring. CONCLUSIONS The preference for b n-1 ion formation is probably due to the higher propensity of the C-terminal peptide bond to be cleaved than other internal bonds. The fact that such C-terminal fragmentation takes place for most of the peptides examined suggests that the use of an N-terminal specific enzyme would allow the C-terminal amino acids to be more reliably read out than other internal sequences, information that could be efficiently used for protein identification.
Collapse
Affiliation(s)
- Yang Wang
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, 565-0871, Japan
| | - Etsuko Nakajima
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, 565-0871, Japan
| | - Yoshihito Okamura
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, 565-0871, Japan
| | - Danqing Wang
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, 565-0871, Japan
| | - Nobuaki Okumura
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, 565-0871, Japan
| | - Toshifumi Takao
- Institute for Protein Research, Osaka University, 3-2 Yamadaoka, Suita, 565-0871, Japan
| |
Collapse
|
12
|
Kurylo I, Dupré M, Cantel S, Enjalbal C, Drobecq H, Szunerits S, Melnyk O, Boukherroub R, Coffinier Y. Characterization of peptide attachment on silicon nanowires by X-ray photoelectron spectroscopy and mass spectrometry. Analyst 2017; 142:969-978. [DOI: 10.1039/c6an02588a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
In this paper, we report an original method to immobilize a model peptide on silicon nanowires (SiNWs) via a photolinker attached to the SiNWs’ surface.
Collapse
Affiliation(s)
| | - Mathieu Dupré
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247
- Université de Montpellier
- CNRS
- ENSCM
| | - Sonia Cantel
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247
- Université de Montpellier
- CNRS
- ENSCM
| | - Christine Enjalbal
- Institut des Biomolécules Max Mousseron (IBMM)
- UMR 5247
- Université de Montpellier
- CNRS
- ENSCM
| | - Hervé Drobecq
- Institut de Biologie de Lille (IBL
- CNRS-UMR 8161)
- Université de Lille Nord de France
- 59021 Lille
- France
| | | | - Oleg Melnyk
- Institut de Biologie de Lille (IBL
- CNRS-UMR 8161)
- Université de Lille Nord de France
- 59021 Lille
- France
| | | | | |
Collapse
|
13
|
Fleith C, Cantel S, Subra G, Mehdi A, Ciccione J, Martinez J, Enjalbal C. Laser desorption ionization mass spectrometry of peptides on a hybrid CHCA organic–inorganic matrix. Analyst 2014; 139:3748-54. [DOI: 10.1039/c3an01465g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report applications of new hybrid organic–inorganic silica based materials as laser desorption/ionization (LDI)-promoting surfaces for high-throughput identification of peptides.
Collapse
Affiliation(s)
- Clément Fleith
- Institut des Biomolécules Max Mousseron
- UMR 5247
- Universités Montpellier 1 et 2
- Bâtiment Chimie (17)
- Université Montpellier 2
| | - Sonia Cantel
- Institut des Biomolécules Max Mousseron
- UMR 5247
- Universités Montpellier 1 et 2
- Bâtiment Chimie (17)
- Université Montpellier 2
| | - Gilles Subra
- Institut des Biomolécules Max Mousseron
- UMR 5247
- Universités Montpellier 1 et 2
- Bâtiment Chimie (17)
- Université Montpellier 2
| | - Ahmad Mehdi
- Institut Charles Gerhardt
- UMR 5253
- CMOS
- CC1701
- Université Montpellier 2
| | - Jeremie Ciccione
- Institut des Biomolécules Max Mousseron
- UMR 5247
- Universités Montpellier 1 et 2
- Bâtiment Chimie (17)
- Université Montpellier 2
| | - Jean Martinez
- Institut des Biomolécules Max Mousseron
- UMR 5247
- Universités Montpellier 1 et 2
- Bâtiment Chimie (17)
- Université Montpellier 2
| | - Christine Enjalbal
- Institut des Biomolécules Max Mousseron
- UMR 5247
- Universités Montpellier 1 et 2
- Bâtiment Chimie (17)
- Université Montpellier 2
| |
Collapse
|
14
|
Dupré M, Cantel S, Durand JO, Martinez J, Enjalbal C. Silica nanoparticles pre-spotted onto target plate for laser desorption/ionization mass spectrometry analyses of peptides. Anal Chim Acta 2012; 741:47-57. [DOI: 10.1016/j.aca.2012.06.037] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2012] [Revised: 06/20/2012] [Accepted: 06/24/2012] [Indexed: 11/29/2022]
|
15
|
Dupré M, Coffinier Y, Boukherroub R, Cantel S, Martinez J, Enjalbal C. Laser desorption ionization mass spectrometry of protein tryptic digests on nanostructured silicon plates. J Proteomics 2012; 75:1973-90. [DOI: 10.1016/j.jprot.2011.12.039] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2011] [Revised: 12/19/2011] [Accepted: 12/27/2011] [Indexed: 10/14/2022]
|
16
|
Tam RY, Cooke MJ, Shoichet MS. A covalently modified hydrogel blend of hyaluronan–methyl cellulose with peptides and growth factors influences neural stem/progenitor cell fate. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm33680d] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
|