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Tandem Mass Spectrometry: A mass spectrometry technique using two (Ms/Ms) or more mass analyzers. With two in tandem, the precursor ions are mass-selected by a first mass analyzer, and focused into a collision region where they are then fragmented into product ions which are then characterized by a second mass analyzer. A variety of techniques are used to separate the compounds, ionize them, and introduce them to the first mass analyzer. For example, for in Gc-ms/Ms, Gas chromatography-mass spectrometry is involved in separating relatively small compounds by Gas chromatography prior to injecting them into an ionization chamber for the mass selection.

A Fast and Quantitative Method for Post-translational Modification and Variant Enabled Mapping of Peptides to Genomes

1Department of Neurobiology, F. M. Kirby Neurobiology Center, Boston Children's Hospital, Harvard Medical School, 2Proteomic Mass Spectrometry, Wellcome Trust Sanger Institute, Wellcome Genome Campus, 3Centre for Molecular Informatics, Department of Chemistry, University of Cambridge, 4Functional Proteomics Group, Chester Beatty Laboratories, Institute of Cancer Research

JoVE 57633


 Genetics

Two-dimensional Gel Electrophoresis Coupled with Mass Spectrometry Methods for an Analysis of Human Pituitary Adenoma Tissue Proteome

1Key Laboratory of Cancer Proteomics of Chinese Ministry of Health, Xiangya Hospital, Central South University, 2Hunan Engineering Laboratory for Structural Biology and Drug Design, Xiangya Hospital, Central South University, 3State Local Joint Engineering Laboratory for Anticancer Drugs, Xiangya Hospital, Central South University, 4The State Key Laboratory of Medical Genetics, Central South University

JoVE 56739


 Cancer Research

Quantitative Analysis of Chromatin Proteomes in Disease

1Department of Anesthesiology, David Geffen School of Medicine at UCLA, 2Department of Medicine, David Geffen School of Medicine at UCLA, 3Department of Physiology, David Geffen School of Medicine at UCLA, 4Department of Internal Medicine, Nora Eccles Harrison Cardiovascular Research and Training Institute, University of Utah

JoVE 4294


 Medicine

Deep Proteome Profiling by Isobaric Labeling, Extensive Liquid Chromatography, Mass Spectrometry, and Software-assisted Quantification

1St. Jude Proteomics Facility, St. Jude Children's Research Hospital, 2Departments of Structural Biology and Developmental Neurobiology, St. Jude Children's Research Hospital, 3Heilongjiang University of Chinese Medicine

JoVE 56474


 Biochemistry

Phosphopeptide Enrichment Coupled with Label-free Quantitative Mass Spectrometry to Investigate the Phosphoproteome in Prostate Cancer

1Graduate Program in Cellular and Molecular Pharmacology, School of Graduate Studies, Rutgers University, The State University of New Jersey, 2Graduate Program in Quantitative Biomedicine, School of Graduate Studies, Rutgers University, The State University of New Jersey, 3Department of Medicine, Division of Medical Oncology, Rutgers Robert Wood Johnson Medical School, 4Crump Institute for Molecular Imaging, Department of Molecular and Medical Pharmacology, Jonsson Comprehensive Cancer Center, UCLA Metabolomics Center, and California NanoSystems Institute, David Geffen School of Medicine, University of California, Los Angeles, 5Mork Family Department of Chemical Engineering and Materials Science, University of Southern California, 6Pharmacology, Rutgers Robert Wood Johnson Medical School, 7Cancer Metabolism and Growth Program, Rutgers Cancer Institute of New Jersey

JoVE 57996


 Cancer Research

Imaging Metals in Brain Tissue by Laser Ablation - Inductively Coupled Plasma - Mass Spectrometry (LA-ICP-MS)

1Elemental Bio-imaging Facility, University of Technology Sydney, 2Florey Institute of Neuroscience and Mental Health, The University of Melbourne, 3Department of Pathology, The University of Melbourne, 4School of Earth Sciences, The University of Melbourne, 5Research School, Ruhr University, 6Department of Physiology, Monash University, 7ESI Ltd., Bozeman, 8Agilent Technologies, Mulgrave

JoVE 55042


 Medicine

High Resolution Quantitative Synaptic Proteome Profiling of Mouse Brain Regions After Auditory Discrimination Learning

1Leibniz Institute for Neurobiology (LIN), 2Institute of Experimental Internal Medicine, Medical School, Otto von Guericke University Magdeburg, 3Institute of Pharmacology and Toxicology, Medical School, Otto von Guericke University

JoVE 54992


 Neuroscience

Capture and Identification of RNA-binding Proteins by Using Click Chemistry-assisted RNA-interactome Capture (CARIC) Strategy

1College of Chemistry and Molecular Engineering, Peking University, 2Beijing National Laboratory for Molecular Sciences, Peking University, 3Peking-Tsinghua Center for Life Sciences, Peking University, 4Synthetic and Functional Biomolecules Center, Peking University, 5Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, Peking University

JoVE 58580


 Biochemistry

Purification and Analytics of a Monoclonal Antibody from Chinese Hamster Ovary Cells Using an Automated Microbioreactor System

1Center for Drug Evaluation and Research, Office of Product Quality, Office of Biotechnology Products, Division of Biotechnology Review and Research II, U.S. Food and Drug Administration

Video Coming Soon

JoVE 58947


 JoVE In-Press

Nitropeptide Profiling and Identification Illustrated by Angiotensin II

1Mass Spectrometry Core Facility, School of Life Sciences, Westlake University, 2Department of Biological Sciences, University of Notre Dame, 3Department of Urology, Shanghai East Hospital, Tongji University School of Medicine, 4Boler-Parseghian Center for Rare and Neglected Diseases, University of Notre Dame, 5Harper Cancer Research Institute, University of Notre Dame, 6Tumor Microenvironment and Metastasis Program, Indiana University Melvin and Bren Simon Cancer Center

Video Coming Soon

JoVE 59391


 JoVE In-Press

Detection of 3-Nitrotyrosine in Atmospheric Environments via a High-performance Liquid Chromatography-electrochemical Detector System

1Department of Public Health, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, 2Department of Pathophysiology-Periodontal Science, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences

Video Coming Soon

JoVE 58371


 JoVE In-Press

A Hyperandrogenic Mouse Model to Study Polycystic Ovary Syndrome

1Department of Pediatrics, Johns Hopkins University School of Medicine, 2Department of Health, Beijing Military General Hospital, 3Southern Medical University, 4Department of Molecular and Cellular Physiology, Johns Hopkins University School of Medicine, 5Department of Gynecology and Obstetrics, Johns Hopkins University School of Medicine

JoVE 58379


 Developmental Biology

Plate-based Large-scale Cultivation of Caenorhabditis elegans: Sample Preparation for the Study of Metabolic Alterations in Diabetes

15th Medical Department, Medical Faculty Mannheim, Heidelberg University, 2Department of Internal Medicine, Heidelberg University, 3German Center for Diabetes Research (DZD), 4European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University

JoVE 58117


 Biochemistry

Leaf Spray Mass Spectrometry: A Rapid Ambient Ionization Technique to Directly Assess Metabolites from Plant Tissues

1Department of Horticultural Science, Microbial and Plant Genomics Institute, University of Minnesota, 2Department of Horticultural Science, Department of Plant and Microbial Biology, Microbial and Plant Genomics Institute, University of Minnesota, 3Department of Botany and Zoology, Stellenbosch University

JoVE 57949


 Biochemistry

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