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Full-Text Articles in Life Sciences
Direct Single Molecule Imaging Of Enhanced Diffusion For Enzymes And Enzyme-Conjugated Dna Origami, Mengqi Xu
Direct Single Molecule Imaging Of Enhanced Diffusion For Enzymes And Enzyme-Conjugated Dna Origami, Mengqi Xu
Dissertations - ALL
Enzymes have been shown to diffuse faster in the presence of their substrates. Recently, we revealed new insights into this process of enhanced diffusion using single-particle tracking (SPT) with total internal reflection fluorescence (TIRF) microscopy. We found that the mobility of individual enzymes was enhanced three-fold in the presence of the substrate, and the motion remained Brownian. We showed that the relative increase in diffusion is independent of the total enzyme concentrations; and the oligomerization state of enzymes did not change during the catalytic turnover. These experiments ruled out the possibility that the enhanced enzyme diffusion was caused by the …
The Discovery And Analysis Of Peroxidase Enzyme In Pueraria Montana, Kathryn Briley
The Discovery And Analysis Of Peroxidase Enzyme In Pueraria Montana, Kathryn Briley
Senior Honors Theses
Peroxidase enzymes are used for a variety of industrial and biotechnological applications because of their ease of purification, broad range of chemical activities, and low cost of use. Identification of quality peroxidase sources that are convenient for enzymatic isolation and give way to high yields of product is a desirable pursuit in biochemical research. Kudzu is an excellent candidate for this pursuit as it displays high catalytic activity in screening assays and is found in abundance. This project seeks to determine the enzyme stability, optimal pH conditions, and possible novel chemical activities of peroxidase isolated from kudzu leaves. The methods …
The Effect Of Alcalase Concentration On The Proteins From The Shells Of Litopenaeus Setiferus (White Shrimp), Liam T. Quan
The Effect Of Alcalase Concentration On The Proteins From The Shells Of Litopenaeus Setiferus (White Shrimp), Liam T. Quan
Journal of the South Carolina Academy of Science
Chitin is a naturally abundant polymer that also happens to be biodegradable. Chitin can be used in a variety of different products such as biodegradable plastics, papers, medical products, foods, and medical treatments. To extract chitin, shells must be demineralized and deproteinized. The goal of this experiment was to examine the effect of the protease Alcalase in the deproteinization of litopenaeus setiferus shells. The hypothesis was that if the concentration of Alcalase increased, then the absorbance of proteins in the spectrophotometer reading would increase. The null hypothesis was that if the concentration increased there would be no change in absorption. …