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Amino Acid Substitution: The naturally occurring or experimentally induced replacement of one or more Amino acids in a protein with another. If a functionally equivalent amino acid is substituted, the protein may retain wild-type activity. Substitution may also diminish, enhance, or eliminate protein function. Experimentally induced substitution is often used to study enzyme activities and binding site properties.

Using Phylogenetic Analysis to Investigate Eukaryotic Gene Origin

1Bio-technology Research Center, China Three Gorges University, 2The Institute of Bioinformatics, College of Life Sciences, Anhui Normal University, 3Department of Plant Biology, University of Illinois at Urbana-Champaign, 4College of Resources & Environmental Sciences, Nanjing Agricultural University

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JoVE 56684


 JoVE In-Press

Site-Directed Immobilization of Bone Morphogenetic Protein 2 to Solid Surfaces by Click Chemistry

1Fraunhofer-Institut für Grenzflächen- und Bioverfahrenstechnik (IGB), Translationszentrum Würzburg 'Regenerative Therapien für Krebs- und Muskuloskelettale Erkrankung', Institutsteil Würzburg, 2Lehrstuhl für Tissue Engineering und Regenerative Medizin, Universitätsklinikum Würzburg, 3Lehrstuhl für Pharmazeutische Technologie und Biopharmazie, Universität Würzburg, 4Lehrstuhl für molekulare Pflanzenphysiologie und Biophysik, Julius-von-Sachs Institut für Biowissenschaften, Universität Würzburg

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JoVE 56616


 JoVE In-Press

Fabrication and Characterization of Griffithsin-modified Fiber Scaffolds for Prevention of Sexually Transmitted Infections

1Department of Chemistry, University of Louisville, 2Department of Pharmacology and Toxicology, University of Louisville, 3Center for Predictive Medicine, University of Louisville, 4Department of Microbiology and Immunology, University of Louisville, 5Department of Bioengineering, University of Louisville

JoVE 56492


 Bioengineering

Quantification of Lipid Abundance and Evaluation of Lipid Distribution in Caenorhabditis Elegans by Nile Red and Oil Red O Staining

1Leonard Davis School of Gerontology, University of Southern California, 2Molecular & Computational Biology Section, University of Southern California, 3Integrative Program for Biological & Genome Sciences, University of North Carolina at Chapel Hill

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JoVE 57352


 JoVE In-Press

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