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Articles 1 - 3 of 3
Full-Text Articles in Physics
Folding Of Bovine Pancreatic Trypsin Inhibitor (Bpti) Is Faster Using Aromatic Thiols And Their Corresponding Disulfides, Ram Prasad Marahatta
Folding Of Bovine Pancreatic Trypsin Inhibitor (Bpti) Is Faster Using Aromatic Thiols And Their Corresponding Disulfides, Ram Prasad Marahatta
FIU Electronic Theses and Dissertations
Improvement in the in vitro oxidative folding of disulfide-containing proteins, such as extracellular and pharmaceutically important proteins, is required. Traditional folding methods using small molecule aliphatic thiol and disulfide, such as glutathione (GSH) and glutathione disulfide (GSSG) are slow and low yielding. Small molecule aromatic thiols and disulfides show great potentiality because aromatic thiols have low pKa values, close to the thiol pKa of protein disulfide isomerase (PDI), higher nucleophilicity and good leaving group ability. Our studies showed that thiols with a positively charged group, quaternary ammonium salts (QAS), are better than thiols with negatively charged groups such as phosphonic …
Scanning Ion Conductance Microscopy For Single Cell Imaging And Analysis, Namuna Panday
Scanning Ion Conductance Microscopy For Single Cell Imaging And Analysis, Namuna Panday
FIU Electronic Theses and Dissertations
Most biological experiments are performed on an ensemble of cells under the assumption that all cells are identical. However, recent evidence from single cells studies reveals that this assumption is incorrect. Individual cells within the same generation may differ dramatically, and these differences have important consequences for the health and function of the entire living body. I have used Scanning Ion Conductance Microscopy (SICM) for imaging and analysis of topographical change of single cell membrane, which is difficult to be revealed by optical microscopes. Morphological change in the fixed and live HeLa cell membrane during endocytosis of conjugated polymer nanoparticles …
Molecular Dynamics Investigations Of Structural Conversions In Transformer Proteins, Jeevan Gc
Molecular Dynamics Investigations Of Structural Conversions In Transformer Proteins, Jeevan Gc
FIU Electronic Theses and Dissertations
Multifunctional proteins that undergo major structural changes to perform different functions are known as “Transformer Proteins”, which is a recently identified class of proteins. One such protein that shows a remarkable structural plasticity and has two distinct functions is the transcription antiterminator, RfaH. Depending on the interactions between its N-terminal domain and its C-terminal domain, the RfaH CTD exists as either an all-α-helix bundle or all-β-barrel structure. Another example of a transformer protein is the Ebola virus protein VP40 (eVP40), which exists in different conformations and oligomeric states (dimer, hexamer, and octamer), depending on the required function.I performed Molecular Dynamics …