Mass spectrometryPub Date : 2020-01-01Epub Date: 2020-03-28DOI: 10.5702/massspectrometry.A0082
Naoyuki Sugiyama
{"title":"Mass Spectrometry-Based Discovery of <i>in vitro</i> Kinome Substrates.","authors":"Naoyuki Sugiyama","doi":"10.5702/massspectrometry.A0082","DOIUrl":"https://doi.org/10.5702/massspectrometry.A0082","url":null,"abstract":"<p><p>Protein phosphorylation mediated by protein kinases is one of the most significant posttranslational modifications in many biological events. The function and physiological substrates of specific protein kinases, which are highly associated with known signal transduction elements or therapeutic targets, have been extensively studied using various approaches; however, most protein kinases have not yet been characterized. In recent decades, many techniques have been developed for the identification of <i>in vitro</i> and physiological substrates of protein kinases. In this review, I summarize recent studies profiling the characteristics of kinases using mass spectrometry-based proteomics, focusing on the large-scale identification of <i>in vitro</i> substrates of the human kinome using a quantitative phosphoproteomics approach.</p>","PeriodicalId":18243,"journal":{"name":"Mass spectrometry","volume":"9 1","pages":"A0082"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5702/massspectrometry.A0082","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38057400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mass spectrometryPub Date : 2020-01-01Epub Date: 2020-03-17DOI: 10.5702/massspectrometry.A0080
Kohta Nakatani, Yoshihiro Izumi, Kosuke Hata, Takeshi Bamba
{"title":"An Analytical System for Single-Cell Metabolomics of Typical Mammalian Cells Based on Highly Sensitive Nano-Liquid Chromatography Tandem Mass Spectrometry.","authors":"Kohta Nakatani, Yoshihiro Izumi, Kosuke Hata, Takeshi Bamba","doi":"10.5702/massspectrometry.A0080","DOIUrl":"https://doi.org/10.5702/massspectrometry.A0080","url":null,"abstract":"<p><p>The rapid development of next-generation sequencing techniques has enabled single-cell genomic and transcriptomic analyses, which have revealed the importance of heterogeneity in biological systems. However, analytical methods to accurately identify and quantify comprehensive metabolites from single mammalian cells with a typical diameter of 10-20 μm are still in the process of development. The aim of this study was to develop a single-cell metabolomic analytical system based on highly sensitive nano-liquid chromatography tandem mass spectrometry (nano-LC-MS/MS) with multiple reaction monitoring. A packed nano-LC column (3-μm particle-size pentafluorophenylpropyl Discovery HSF5 of dimensions 100 μm i.d.×180 mm) was prepared using a slurry technique. The optimized nano-LC-MS/MS method showed 3-132-fold (average value, 26-fold) greater sensitivity than semimicro-LC-MS/MS, and the detection limits for several hydrophilic metabolites, including amino acids and nucleic acid related metabolites were in the sub-fmol range. By combining live single-cell sampling and nano-LC-MS/MS, we successfully detected 18 relatively abundant hydrophilic metabolites (16 amino acids and 2 nucleic acid related metabolites) from single HeLa cells (<i>n</i>=22). Based on single-cell metabolic profiles, the 22 HeLa cells were classified into three distinct subclasses, suggesting differences in metabolic function in cultured HeLa cell populations. Our single-cell metabolomic analytical system represents a potentially useful tool for in-depth studies focused on cell metabolism and heterogeneity.</p>","PeriodicalId":18243,"journal":{"name":"Mass spectrometry","volume":"9 1","pages":"A0080"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5702/massspectrometry.A0080","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38057916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Mass Spectrometric Characterization of Histone H3 Isolated from <i>in-Vitro</i> Reconstituted and Acetylated Nucleosome Core Particle.","authors":"Kazumi Saikusa, Haruna Hidaka, Shunsuke Izumi, Satoko Akashi","doi":"10.5702/massspectrometry.A0090","DOIUrl":"https://doi.org/10.5702/massspectrometry.A0090","url":null,"abstract":"<p><p>Post-translational modifications (PTMs) of histone N-terminal tails in nucleosome core particle (NCP), such as acetylation, play crucial roles in regulating gene expression. To unveil the regulation mechanism, atomic-level structural analysis of <i>in-vitro</i> modified NCP is effective with verifying the PTMs of histones. So far, identification of PTMs of NCP originating from living cells has mainly been performed using mass spectrometry (MS) techniques, such as bottom-up approach. The bottom-up approach is the most established method for protein characterization, but it does not always provide sufficient information on the acetylated sites of lysine residues in the histone tails if trypsin digestion is carried out. For histone proteins, which have many basic amino acids, trypsin generates too many short fragments that cannot be perfectly analyzed by tandem MS. In this study, we investigated the <i>in vitro</i> acetylation sites in the histone H3 tail using a top-down sequence analysis, matrix-assisted laser desorption/ionization in-source decay (MALDI-ISD) experiment, in combination with aminopeptidase digestion. Aminopeptidase can cleave peptide bonds one-by-one from the N-terminus of peptides or proteins, generating N-terminally truncated peptides and/or proteins. As a result, it was identified that this method enables sequence characterization of the entire region of the H3 tail. Also, application of this method to H3 in <i>in-vitro</i> acetylated NCP enabled assigning acetylation sites of H3. Thus, this method was found to be effective for obtaining information on <i>in-vitro</i> acetylation of NCP for structural biology study.</p>","PeriodicalId":18243,"journal":{"name":"Mass spectrometry","volume":"9 1","pages":"A0090"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7674858/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38736753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Analysis of Serotonin in Human Feces Using Solid Phase Extraction and Column-Switching LC-MS/MS.","authors":"Yukiko Hirabayashi, Kiminori Nakamura, Tsuyoshi Sonehara, Daisuke Suzuki, Satoru Hanzawa, Yu Shimizu, Tomoyasu Aizawa, Koshi Nakamura, Akiko Tamakoshi, Tokiyoshi Ayabe","doi":"10.5702/massspectrometry.A0081","DOIUrl":"https://doi.org/10.5702/massspectrometry.A0081","url":null,"abstract":"<p><p>Serotonin, an important neurotransmitter, is produced mainly in intestines, and serotonin levels in feces can be an indicator of the intestinal environment. Human feces, however, contain a large amount of contaminants, which vary widely owing to food contents and the intestinal environment, and these contaminants would be expected to interfere with the determination of serotonin levels in human feces. To remove these contaminants and determine serotonin levels, we developed a new method using solid phase extraction (SPE) and column-switching LC-MS/MS. Serotonin, labeled with a stable isotope, was added to human feces samples prior to SPE as an internal standard to correct for individual differences in matrix effects. The recovery rate for SPE was 55.9-81.0% (intraday) and 56.5-78.1% (interday) for feces from two subjects. We analyzed 220 fecal samples from 96 subjects including 76 pregnant and post-delivery women. The endogenous serotonin content per unit weight of dried feces was 0.09-14.13 ng/mg for pregnant and post-delivery women and 0.30-9.93 ng/mg for the remaining subjects.</p>","PeriodicalId":18243,"journal":{"name":"Mass spectrometry","volume":"9 1","pages":"A0081"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5702/massspectrometry.A0081","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38057399","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Quantitative Visualization of Lanthanum Accumulation in Lanthanum Carbonate-Administered Human Stomach Tissues Using Mass Spectrometry Imaging.","authors":"Shuichi Shimma, Yoshiki Makino, Kazuto Kojima, Takafumi Hirata","doi":"10.5702/massspectrometry.A0086","DOIUrl":"https://doi.org/10.5702/massspectrometry.A0086","url":null,"abstract":"<p><p>Platinum, a transition metal that is widely used in anti-cancer agents, also results in the development of nephropathy due to severe adverse reactions caused by platinum-induced nephrotoxicity. Reports on imaging with metals other than platinum remain are limited, even in preclinical studies. Furthermore, most of these are case reports, and the relationship between the distribution of the metal and clinical observations in human samples is not well understood. Here we report on visualizing lanthanum (<sup>139</sup>La), a component of Fosrenol, which is usually used for the treatment of hyperphosphatemia. Gastric inflammation, also known as hemorrhagic gastritis, is the main adverse event caused by Fosrenol. To conduct this study, <sup>139</sup>La was visualized in gastric biopsy samples obtained from a patient using quantitative laser ablation-inductively coupled plasma-mass spectrometry (LA-ICP-MS). We also compared the distribution of <sup>139</sup>La in tissue and histochemical results. The areas where <sup>139</sup>La accumulated corresponded to the macrophage-positive areas observed in immunohistochemistry studies using an anti-CD68 antibody. In contrast, we observed a debris-like crystal morphology in hematoxylin and eosin staining tissues. The debris was also associated with <sup>139</sup>La accumulation. The abnormal accumulation of <sup>139</sup>La crystals caused the observed inflammation. This phenomenon was previously characterized, but this is the first report in which <sup>139</sup>La distribution and histochemical results are compared using LA-ICP-MS.</p>","PeriodicalId":18243,"journal":{"name":"Mass spectrometry","volume":"9 1","pages":"A0086"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5702/massspectrometry.A0086","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38238996","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mass spectrometryPub Date : 2020-01-01Epub Date: 2020-04-23DOI: 10.5702/massspectrometry.A0084
Yoshinao Wada
{"title":"Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry to Detect Diagnostic Glycopeptide Markers of Congenital Disorders of Glycosylation.","authors":"Yoshinao Wada","doi":"10.5702/massspectrometry.A0084","DOIUrl":"https://doi.org/10.5702/massspectrometry.A0084","url":null,"abstract":"<p><p>Congenital disorders of glycosylation (CDG), an increasingly recognized group of diseases that affect glycosylation, comprise the largest known subgroup of approximately 100 responsible genes related to <i>N</i>-glycosylation. This subgroup presents various molecular abnormalities, of either the CDG-I or the CDG-II type, attributable to a lack of glycans or abnormal glycoform profiles, respectively. The most effective approach to identifying these <i>N</i>-glycosylation disorders is mass spectrometry (MS) using either released glycans, intact glycoproteins or proteolytic peptides as analytes. Among these, MS of tryptic peptides derived from transferrin can be used to reliably identify signature peptides that are characteristic of CDG-I and II. In the present study, matrix-assisted laser desorption/ionization (MALDI) MS was applied to various <i>N</i>-glycosylation disorders including ALG1-CDG, B4GALT1-CDG, SLC35A2-CDG, ATP6V0A2-CDG, TRAPPC11-CDG and MAN1B1-CDG. This method does not require the prior enrichment of glycopeptides or chromatographic separation, and thus serves as a practical alternative to liquid chromatography-electrospray ionization MS. The signature peptides are biomarkers of CDG.</p>","PeriodicalId":18243,"journal":{"name":"Mass spectrometry","volume":"9 1","pages":"A0084"},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.5702/massspectrometry.A0084","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"38057402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mass spectrometryPub Date : 2019-07-15DOI: 10.1002/9781119377368.ch2
M. Smoluch, J. Silberring
{"title":"A Brief History of Mass Spectrometry","authors":"M. Smoluch, J. Silberring","doi":"10.1002/9781119377368.ch2","DOIUrl":"https://doi.org/10.1002/9781119377368.ch2","url":null,"abstract":"","PeriodicalId":18243,"journal":{"name":"Mass spectrometry","volume":"21 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83818299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mass spectrometryPub Date : 2019-06-24DOI: 10.1002/9781119377368.ch8
V. Cunsolo, S. Foti, J. Ner‐Kluza, A. Drabik, J. Silberring, V. Muccilli, R. Saletti, Katarzyna Pawlak, E. Harwood, Fang Yu, P. Ciborowski, R. Anczkiewicz, Kathrin Altweg, G. Spoto, A. Pawlaczyk, M. Szynkowska, M. Smoluch, D. Kwiatkowska
{"title":"Mass Spectrometry Applications","authors":"V. Cunsolo, S. Foti, J. Ner‐Kluza, A. Drabik, J. Silberring, V. Muccilli, R. Saletti, Katarzyna Pawlak, E. Harwood, Fang Yu, P. Ciborowski, R. Anczkiewicz, Kathrin Altweg, G. Spoto, A. Pawlaczyk, M. Szynkowska, M. Smoluch, D. Kwiatkowska","doi":"10.1002/9781119377368.ch8","DOIUrl":"https://doi.org/10.1002/9781119377368.ch8","url":null,"abstract":"","PeriodicalId":18243,"journal":{"name":"Mass spectrometry","volume":"79 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84080121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}