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Articles 1 - 6 of 6
Full-Text Articles in Biochemistry
Determining The Full-Length Structure Of Collagenase H Using Small-Angle X-Ray Scattering, Josie Carson
Determining The Full-Length Structure Of Collagenase H Using Small-Angle X-Ray Scattering, Josie Carson
Chemistry & Biochemistry Undergraduate Honors Theses
Known to cause gas gangrene, Hathewaya histolytica secretes two sister collagenases, collagenase G (Col G) and collagenase H (Col H), to degrade the triple helical structure of collagen to further infection in a host. Individual domains of Col H have been crystalized in previous studies, but methods in x-ray crystallization of full-length Col H have been unsuccessful. Using Small Angle X-Ray Scattering (SAXS) data, atomistic modeling was used to generate multiple conformations of Col H while accounting for flexibility between domains. Full-length Col H was found to adopt a two-state conformational model exhibiting a majority compact and a minority elongated …
Investigation Of The Binding Domain Interfaces Of The C-Terminus Of The Albino3 Insertase And The 43kda Chloroplast Signal Recognition Particle Subunit Via Single Molecule Förster Resonance Energy Transfer, Amanda Tomanek
Chemistry & Biochemistry Undergraduate Honors Theses
Fluorescent labeling is a technique used for visualizing functional groups contained in biomolecules by fluorescence imaging. This technique was used in this project to analyze post-translational targeting of light-harvesting chlorophyll-binding proteins (LHCP), which are the core complexes that harvest sunlight to drive photosynthetic electron transfer. This protein is synthesized in the cytosol and post-translationally targeted to the stroma of chloroplasts. CpSRP43 is a signal recognition particle (SRP) subunit unique to chloroplasts, which has been shown to interact with the stroma-soluble C-terminus of the thylakoid-bound Albino3 insertase (Alb3-Cterm). In the chloroplast stroma, targeting to thylakoids is performed via the cpSRP pathway …
Hyper Stable Variants Of Fgf-1-Fgf-2 Dimer, Madison Shields Mcclanahan
Hyper Stable Variants Of Fgf-1-Fgf-2 Dimer, Madison Shields Mcclanahan
Chemistry & Biochemistry Undergraduate Honors Theses
Fibroblast Growth Factors (FGFs), including FGF-1 and FGF-2, are proteins that play a crucial role in cell proliferation, cell differentiation, cell migration, and tissue repair. FGF-1 and FGF-2 are useful in accelerating the healing process in the human body; however, these proteins are naturally thermally unstable, resulting in a relatively low half-life in vivo. 1,8 In efforts to improve the stability of this protein, FGF-1 and FGF-2 proteins are engineered by combining the amino acid sequences of the two proteins to form a heterodimer and obtain novel properties. These two FGF variants are chosen for their specific wound healing capabilities. …
Synthesis, Structural Characterization, And In Vitro Biological Assessment Of Trans- Platinum (Ii) Thionate Complexes As Potent Anticancer Agents, Mia Alshami
Chemistry & Biochemistry Undergraduate Honors Theses
The content of this thesis has been originally reported in our published paper, “trans-Platinum (II) Thionate Complexes: Synthesis, Structural Characterization, and in vitro Biological Assessment as Potent Anticancer Agents” ChemPlusChem 2019 84, 1525-1535, DOI: 10.1002/cplu.201900394, in which I served as coauthor. Cancer caused 9.6 million deaths in 2018 worldwide, with 18.1 million new diagnoses during that same year.The most widely used metal in anticancer drugs is platinum (Pt), and these drugs are used to treat almost 50% of cancer patients. To optimize drug effectiveness, trans-configured Pt(II) complexes have been introduced as a strategy to potentially overcome the …
Characterization Of A Protein-Small Molecule Interaction Between Microtubules And Novel Ruthenium-Polypyridyl Complexes, Chloe Hutchison
Characterization Of A Protein-Small Molecule Interaction Between Microtubules And Novel Ruthenium-Polypyridyl Complexes, Chloe Hutchison
Chemistry & Biochemistry Undergraduate Honors Theses
Microtubules are cytoskeletal filaments that play a role in essential functions within the cell such as cell motility, intracellular transport, structural support and chromosome segregation. Tubulin is a heterodimeric protein that exhibits GTP dependent polymerization and self- assembles into polar microtubule filaments. Microtubules are dynamic polymers corresponding to their role in separation of duplicated chromosomes during mitosis. As the polymers cycle through rounds of polymerization and depolymerization based on their nucleotide state, the chromosomes are pulled towards the poles in the mitotic cell. Their normal function and dynamics can be disrupted in highly proliferative cells that interrupt cell cycle progression …
Studying The Lysine Acetylation Of Aconitase Isozymes In E. Coli, Sara Ottinger
Studying The Lysine Acetylation Of Aconitase Isozymes In E. Coli, Sara Ottinger
Chemistry & Biochemistry Undergraduate Honors Theses
The contents of this thesis have been modified from the publication “Araujo J, Ottinger S, Venkat S, Gan Q and Fan C (2022) Studying Acetylation of Aconitase Isozymes by Genetic Code Expansion. Front. Chem. 10:862483”. Though studies have found multiple lysine sites in which acetylation takes place in Escherichia Coli aconitase, acetylation’s effects on the enzyme’s activity have yet to be studied. Aconitase is the dehydratase-hydratase found in the citric acid and glyoxylate cycles responsible for the reversible isomerization of citrate to isocitrate via cis-aconitate intermediate. There are two isoforms of aconitase in E. coli: AcnA and AcnB. In …