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Drug Design: The molecular designing of drugs for specific purposes (such as DNA-binding, enzyme inhibition, anti-cancer efficacy, etc.) based on knowledge of molecular properties such as activity of functional groups, molecular geometry, and electronic structure, and also on information cataloged on analogous molecules. Drug design is generally computer-assisted molecular modeling and does not include pharmacokinetics, dosage analysis, or drug administration analysis.

Protein Crystallization

JoVE 5689

Protein crystallization, obtaining a solid lattice of biomolecules, elucidates protein structure and enables the study of protein function. Crystallization involves drying purified protein under a combination of many factors, including pH, temperature, ionic strength, and protein concentration. Once crystals are obtained, the protein structure can be elucidated by x-ray diffraction and…

 Biochemistry

Carbon Skeletons

JoVE 10661

The backbone of all organic compounds is a carbon skeleton. Each carbon atom can make four bonds, and as the carbon skeleton increases in length, the possibility for structural changes arises, such as ring structures, double bonds, and branching side chains.

Life on Earth is carbon-based because all of the macromolecules that make up living organisms depend upon carbon atoms. At the core of each organic molecule is a carbon skeleton to which other atoms bond. The variety of these other atoms give each molecule its unique properties. Carbon can form four bonds and only rarely becomes an ion, making it an extraordinarily flexible component of molecules. These properties make carbon an essential component of all life on Earth, and it is found in abundance found not only on this planet but throughout the Universe as well. Carbon-carbon bonds form the basis of the carbon skeleton. Hydrogen atoms readily bond to the carbon atom. Molecules that contain only hydrogen and carbon are called hydrocarbons. Hydrocarbons usually form either long chains or will have branches protruding at various points. Changing the number of bonds changes the properties of the molecule: for example, a fatty acid with a long hydrocarbon tail with one or more double bonds will behave differently than a fatty acid with no double bonds. Molecules with the same chemical formula b

 Core: Chemistry of Life

Column Chromatography

JoVE 10217

Source: Laboratory of Dr. Jimmy Franco - Merrimack College


Column chromatography is one of the most useful techniques for purifying compounds. This technique utilizes a stationary phase, which is packed in a column, and a mobile phase that passes through the column. This technique exploits the differences in polarity between compounds,…

 Organic Chemistry

Multi-target Parallel Processing Approach for Gene-to-structure Determination of the Influenza Polymerase PB2 Subunit

1Protein Crystallization Lab, Emerald Bio, 2Molecular Biology Lab, Emerald Bio, 3Scientific Sales Representative, Emerald Bio, 4Group Leader II, Emerald Bio, 5Group Leader I, Emerald Bio, 6Chair of Advisory Board, Emerald Bio, 7Director of Multi-Target Services, Emerald Bio, 8Senior Project Leader, Emerald Bio, 9Project Leader II & SSGCID Site Manager, Emerald Bio

JoVE 4225

 Immunology and Infection

Screening for Thermotoga Maritima Membrane-Bound Pyrophosphatase Inhibitors

1Research Program in Molecular and Integrative Biosciences, University of Helsinki, 2Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, 3School of Biomedical Sciences and Astbury Centre for Structural Molecular Biology, University of Leeds

Video Coming Soon

JoVE 60619

 JoVE In-Press

Preparation of Mitochondria from Ovarian Cancer Tissues and Control Ovarian Tissues for Quantitative Proteomics Analysis

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, 4National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, 5Department of Obstetrics and Gynecology, Xiangya Hospital, Central South University

Video Coming Soon

JoVE 60435

 JoVE In-Press

NMR-Based Activity Assays for Determining Compound Inhibition, IC50 Values, Artifactual Activity, and Whole-Cell Activity of Nucleoside Ribohydrolases

1Department of Chemistry, Adelphi University, 2Department of Chemistry, Washington University in St. Louis, 3Department of Chemistry, Boston University

JoVE 59928

 Chemistry

Crystal Structure of the N-terminal Domain of Ryanodine Receptor from Plutella xylostella

1Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, Collaborative Innovation Center of Chemical Science and Engineering, School of Pharmaceutical Science and Technology, Tianjin University, 2State Key Laboratory of Ecological Pest Control for Fujian/Taiwan Crops and Institute of Applied Ecology, Fujian Agriculture and Forestry University, 3Joint International Research Laboratory of Ecological Pest Control, Ministry of Education, Fuzhou, 4Fujian-Taiwan Joint Centre for Ecological Control of Crop Pests, Fujian Agriculture and Forestry University

JoVE 58568

 Biochemistry

From Molecules to Materials: Engineering New Ionic Liquid Crystals Through Halogen Bonding

1Laboratory of Supramolecular and Bio-Nanomaterials (SBNLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano, 2Department of Chemistry, University of York, 3Laboratory of Nanostructured Fluorinated Materials (NFMLab), Department of Chemistry, Materials, and Chemical Engineering "Giulio Natta", Politecnico di Milano

JoVE 55636

 Chemistry

Utilizing Functional Genomics Screening to Identify Potentially Novel Drug Targets in Cancer Cell Spheroid Cultures

1The Breast Cancer Now Toby Robins Research Centre, Division of Breast Cancer, The Institute of Cancer Research, 2Division of Molecular Pathology, The Institute of Cancer Research, 3Institute of Cancer Sciences, University of Manchester

JoVE 54738

 Cancer Research

Early Viral Entry Assays for the Identification and Evaluation of Antiviral Compounds

1Department of Chinese Medicine, Taipei Medical University Hospital, 2Department of Obstetrics and Gynecology, School of Medicine, College of Medicine, Taipei Medical University, 3Department of Microbiology and Immunology, School of Medicine, College of Medicine, Taipei Medical University, 4Division of Hematology and Oncology, Department of Internal Medicine, Taipei Medical University Hospital, 5Department of Internal Medicine, School of Medicine, College of Medicine, Taipei Medical University, 6Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University

JoVE 53124

 Immunology and Infection

A Novel in vivo Gene Transfer Technique and in vitro Cell Based Assays for the Study of Bone Loss in Musculoskeletal Disorders

1Division of Rheumatology, Allergy and Clinical Immunology, University of California, Davis, 2Institute for Pediatric Regenerative Medicine, Shriners Hospitals for Children - Northern California, 3Department of Dermatology, University of California, Davis

JoVE 51810

 Medicine

A Quantitative Assay to Study Protein:DNA Interactions, Discover Transcriptional Regulators of Gene Expression, and Identify Novel Anti-tumor Agents

1Greenebaum Cancer Center, University of Maryland School of Medicine, 2Program in Molecular Medicine, University of Maryland School of Medicine, 3Department of Biochemistry & Molecular Biology, University of Maryland School of Medicine, 4Department of Pharmacology & Experimental Therapeutics, University of Maryland School of Medicine, 5Department of Pathology and Biochemistry & Molecular Biology, University of Maryland School of Medicine

JoVE 50512

 Biology
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