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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.

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

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 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

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

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

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, allowing the molecules to be facilely separated.1 The two most common stationary phases for column chromatography are silica gel (SiO2) and alumina (Al2O3), with the most commonly used mobile phases being organic solvents.2 The solvent(s) chosen for the mobile phase are dependent on the polarity of the molecules being purified. Typically more polar compounds require more polar solvents in order to facilitate the passage of the molecules through the stationary phase. Once the purification process has been completed the solvent can be removed from the collected fractions using a rotary evaporator to yield the isolated material.


 Organic Chemistry

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

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 computation of an electron density model. This video introduces protein crystallization and shows a general procedure. Protein expression and purification, crystallization, and x-ray diffraction are covered in the procedure. Applications of protein crystallization include in silico drug design, binding site determination, and membrane protein structure analysis. Protein crystallization is the process of obtaining a latticed solid form of a protein. These crystals are especially valuable to structural biologists, assisting in the study of protein function. Other techniques, such as mass spec or SDS-PAGE, can only provide information on the one-dimensional structure of proteins. Protein crystallization is complemented by the techniques of recombinant protein expression and x-ray diffraction. This video will show the principles of protein crystallization, a general laboratory procedure, and several of its applications in the


 Biochemistry

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

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