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Important factors in enzyme catalysis include general acid and base catalysis, orbital steering, entropic restriction, orientation effects (i.e. lock and key catalysis), as well as motional effects involving protein dynamics [1] [2] Mechanisms of enzyme catalysis vary, but are all similar in principle to other types of chemical catalysis in ...
Proteins, Enzymes, Genes: The Interplay of Chemistry and Biology. New Haven: Yale University Press. ISBN 0-300-07608-8. Kay LE (1993). The Molecular Vision of Life: Caltech, The Rockefeller Foundation, and the Rise of the New Biology. New York: Oxford University Press. ISBN 0-19-511143-5. Morange M (1998). A History of Molecular Biology. Cobb M ...
Quizlet's primary products include digital flash cards, matching games, practice electronic assessments, and live quizzes. In 2017, 1 in 2 high school students used Quizlet. [ 4 ] As of December 2021, Quizlet has over 500 million user-generated flashcard sets and more than 60 million active users.
Biosynthesis, i.e., chemical synthesis occurring in biological contexts, is a term most often referring to multi-step, enzyme-catalyzed processes where chemical substances absorbed as nutrients (or previously converted through biosynthesis) serve as enzyme substrates, with conversion by the living organism either into simpler or more complex ...
Regulation of HIV-1 transcription by Protein Phosphatase 1 (PP1). It has been recognized that protein phosphatase-1 (PP1) serves as an important regulator of HIV-1 transcription. Researchers at Howard University showed that Tat protein targets PP1 to the nucleus and the consequent interaction is important for HIV-1 transcription. [16]
Nitrogenase is an enzyme responsible for catalyzing nitrogen fixation, which is the reduction of nitrogen (N 2) to ammonia (NH 3) and a process vital to sustaining life on Earth. [9] There are three types of nitrogenase found in various nitrogen-fixing bacteria: molybdenum (Mo) nitrogenase, vanadium (V) nitrogenase , and iron-only (Fe ...
In biochemistry and molecular biology, a binding site is a region on a macromolecule such as a protein that binds to another molecule with specificity. [1] The binding partner of the macromolecule is often referred to as a ligand . [ 2 ]
Hexokinase-I (HK-I) is an enzyme activator because it draws glucose into the glycolysis pathway. Its function is to phosphorylate glucose releasing glucose-6-phosphate (G6P) as the product. HK-I not only signals the activation of glucose into glycolysis but also maintains a low glucose concentration to facilitate glucose diffusion into the cell.