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Articles 1 - 12 of 12
Full-Text Articles in Biochemistry, Biophysics, and Structural Biology
Mistranslating Trnas Alter The Heat Shock Activation By Hsf1, Rebecca Dib
Mistranslating Trnas Alter The Heat Shock Activation By Hsf1, Rebecca Dib
Undergraduate Student Research Internships Conference
Translation, or the production of protein from an mRNA blueprint, is among the most fundamental processes to life as we know it. tRNAs are essential to accurate translation, as they decode the codons of mRNA and recruit corresponding amino acids. Variant tRNAs with anticodon mutations can decrease translational fidelity by recruiting the incorrect amino acid, an aberrant process known as mistranslation. When proteins are produced with incorrect amino acid sequences, they may misfold. The heat shock response functions to alleviate cellular stress caused by misfolded proteins, either by refolding or targeting misfolded proteins for degradation. Hsf1 acts as a transcriptional …
Synthesis And Characterization Of Cr-Znga2o4 And Eu-Ca3(Po4)2 Composite, Benjamin Hulme
Synthesis And Characterization Of Cr-Znga2o4 And Eu-Ca3(Po4)2 Composite, Benjamin Hulme
Undergraduate Student Research Internships Conference
No abstract provided.
Assessing Selective Plasmids For Bradyrhizobium Sp. Doa9 And Mesorhizobium Loti, Aiden J. Wilcox, Rebecca Meaney, Bogumil Karas
Assessing Selective Plasmids For Bradyrhizobium Sp. Doa9 And Mesorhizobium Loti, Aiden J. Wilcox, Rebecca Meaney, Bogumil Karas
Undergraduate Student Research Internships Conference
No abstract provided.
The Cofactor Specificity Of Nqo2, Shujun Dong
The Cofactor Specificity Of Nqo2, Shujun Dong
Undergraduate Student Research Internships Conference
NQO1 and NQO2 are closely related quinone reductases, which are FAD-linked enzymes that catalyze the 2-electron reduction of quinones. Whereas NQO1 has a well-defined role in cellular detoxification of quinones, NQO2’s function is less clear; it uses the conventional cofactors NADH/NADPH inefficiently compared to smaller nicotinamide cofactors, which are often present in low cellular amounts. This unique cofactor specificity suggests that NQO2 may have non-enzymatic functions, such as a role in intracellular signalling.
The goals of this research project include: 1) examining whether cofactor specificity is conserved in amniote NQO2 enzymes and 2) re-constructing ancient enzymes along the evolutionary pathway …
Investigating Stop Codon Readthrough In Saccharomyces Cerevisiae, Amy Kwon
Investigating Stop Codon Readthrough In Saccharomyces Cerevisiae, Amy Kwon
Undergraduate Student Research Internships Conference
Stop codon readthrough occurs via genetic and epigenetic mechanisms, resulting in a longer polypeptide chain at the C-terminus. Although these readthroughs may seem like an error made by translational mechanisms, evidence from yeast suggests that stop codon readthrough has an impact on various cellular processes. Readthrough has the potential to create genetic diversity, similar to RNA splicing, mRNA editing, and protein modification. The diversity created by translational readthrough may result in a beneficial change in phenotype, and thus have a role in evolution and adaptability. Translational readthrough is observed in organisms such as yeast and E. coli but may also …
Synthesis Of Nucleotide Prodrugs As Potential Antiviral Agents, Mohammed Attaelmanan
Synthesis Of Nucleotide Prodrugs As Potential Antiviral Agents, Mohammed Attaelmanan
Undergraduate Student Research Internships Conference
No abstract provided.
Investigating Dha Levels In Rat Brain Tissues In Relation To Maternal Thc Exposure Using Maldi-Ims, Aleksandra (Ola) Doktor
Investigating Dha Levels In Rat Brain Tissues In Relation To Maternal Thc Exposure Using Maldi-Ims, Aleksandra (Ola) Doktor
Undergraduate Student Research Internships Conference
This research focuses on investigating whether maternal exposure to THC (tetrahydrocannabinol) has an effect on lowering DHA (Docosahexaenoic Acid) levels in female and male offspring, and if an omega-3 rich diet, containing DHA, is able to recover DHA levels following a THC caused deficiency. To study this, DHA levels in rat brain tissues from 21-Day-Old offspring were compared across four different groups of maternal rats, vehicle rats with a controlled diet (veh/ct), vehicle rats with an omega-3 rich diet (veh/n3), THC treated rats with a controlled diet (thc/ct), and THC treated rats with an omega-3 rich diet (thc/n3) using MALDI-IMS …
Tracing Nutrient Sources To Lipid Production In Insects Using Stable Isotope (Δ13c, Δ2h) Tracers: Implications For Nutritional Physiology Of Migratory Species., Libesha Anparasan, Keith A. Hobson
Tracing Nutrient Sources To Lipid Production In Insects Using Stable Isotope (Δ13c, Δ2h) Tracers: Implications For Nutritional Physiology Of Migratory Species., Libesha Anparasan, Keith A. Hobson
Western Research Forum
Using stable isotope measurements of insect tissues to determine origin and migratory patterns is well established. However, isotopically determining nutritional origins of lipids, the primary fuel of migration, has not been as thoroughly researched. We explored isotopic links between diet and stored lipids in laboratory raised True armyworm moths (Mythimna unipuncta) using δ13C and δ2H measurements. Pupae were randomly separated into four groups (n=20) and fed isotopically distinct nectar, each consisting of a combination of high δ13C (C4 sugar), or low δ13C (C3 sugar) carbohydrate, with high δ2H (deuterium spiked), …
The Wet Bridge Transfer System: An Novel In Vitro Tool For Assessing Exogenous Surfactant As A Pulmonary Drug Delivery Vehicle, Brandon J. Baer
The Wet Bridge Transfer System: An Novel In Vitro Tool For Assessing Exogenous Surfactant As A Pulmonary Drug Delivery Vehicle, Brandon J. Baer
Western Research Forum
Background:
Due to its complex branching structure, direct drug delivery to the remote areas of the lung is a major challenge. Consequently, most therapies, such as those treating pulmonary infection and inflammation, must utilize large systemic dosing, with the potential for adverse side effects. A novel alternative strategy is to use exogenous surfactant, a material capable of distributing throughout the lung, as a pulmonary drug delivery vehicle.
Objective:
Utilize an in vitro transferring system to assess exogenous surfactant (BLES) as a pulmonary delivery vehicle for different therapeutics.
Methods:
An in vitro technique was developed to simultaneously study surfactant delivery and …
Developing Novel Therapeutics For Bacterial Lung Infections, Brandon J. Baer, Ruud Veldhuizen, Cory Yamashita
Developing Novel Therapeutics For Bacterial Lung Infections, Brandon J. Baer, Ruud Veldhuizen, Cory Yamashita
Western Research Forum
Background: Bacterial lung infections are leading causes of death worldwide. Unfortunately, increasing resistance to antibiotics and the inflammation often accompanying these infections are leading to poor outcomes despite antibiotic intervention. Complicating treatment further, the tree-like branching structure of the lung makes drug delivery to distal sites of infection difficult. Our research aims to address these challenges by developing new therapeutics and new tools to improve and assess drug delivery, bacterial killing and inflammation. Our therapy combines host defense peptides, which have been shown to kill antibiotic-resistant bacteria and down regulate inflammation, with a pulmonary vehicle, exogenous surfactant, that can improve …
Maternal Protein Restriction (Mpr): A Risk Factor For Acute Respiratory Distress Syndrome (Ards), Reza Khazaee
Maternal Protein Restriction (Mpr): A Risk Factor For Acute Respiratory Distress Syndrome (Ards), Reza Khazaee
Western Research Forum
Background: Acute respiratory distress syndrome (ARDS) is defined as severe lung dysfunction. The lung impairments in ARDS result from alterations to pulmonary surfactant; a lipid-protein mixture coating the inside of the lung and maintains the lungs’ ability to expand easily. Due to a lack of effective pharmacological therapies mortality associated with ARDS is over 30%. Our research focuses on risk factors that indicate a susceptibility to the disease, which could provide new and early therapeutic options. One such potential risk factor is Maternal Protein Restriction (MPR). MPR is defined by low birth weight and contributes to a variety of adult-onset …
A Chimeric Nucleobase - Phenylazo Derivative As An Intrinsic Nucleobase Quencher, Gyeongsu Park, Timothy Martin-Chan, Amer El Samm, Robert H.E. Hudson
A Chimeric Nucleobase - Phenylazo Derivative As An Intrinsic Nucleobase Quencher, Gyeongsu Park, Timothy Martin-Chan, Amer El Samm, Robert H.E. Hudson
Western Research Forum
Molecular beacons are important bioanalytical probes which are most often
constructed from a single-stranded oligonucleotide which has been labeled at
opposite termini with a fluorophore and a quencher. When the fluorophore and
quencher are in close proximity, no fluorescence is observed due to FRET
(Fluorescence Resonance Energy Transfer). DABCYL (4-dimethylaminoazobenzene-
4'-carboxylic acid) has been used as a quencher in the molecular beacon to absorbs
excitation energy from a fluorophore and to dissipate the energy as heat. However,
DABCYL is unable to form a base-pair and is conventionally placed as an overhanging
residue. This produces a derivative wherein the chromophore has …