Current literature papers discussed on Monday nights at 4:00pm in Room H-074 in the Health Sciences Building.

 

Past Monday Night Meetings

 

Autumn 2008

Then and Now

Sometimes an idea will revolutionize scientific perceptions in a given field. Maybe the idea was right, or maybe it turned out to be a misconception. Either way, a select group of papers have changed thinking in science more so than the vast majority. Monday Night Meeting this quarter (autumn 2008) will attempt to examine a few of these. Our format this quarter will focus less on the precise investigation of one individual paper, and instead examine the central idea presented within, and trace its impact on the field for which it was written. Some of the questions we will attempt to answer include the central concept and results of the chosen paper, the impact it had at the time, and how it has changed what has gone both before and after. The paper may have turned out to be right or wrong, but looking at in the context of history is really the only way to know…
Date Speaker Paper (Click title to download PDF)
10/20/08 Matthew Honaker Activation of CYP3A4: Evidence for the Simultaneous Binding of Two Substrates
in a Cytochrome P450 Active Site
10/27/08 Elizabeth Medina Protein Fusion: A Novel Reaction in Bacteriophage λ Head Assembly
11/03/08 Oliver Parkinson Pharmacogenetics of the S-Oxidation of S-Carboxymethyl-L-Cysteine
11/10/08 Kelsey Hanson Cytochrome P-455 Complex Formation in the Metabolism of Phenylalkylamines-IV
11/17/08 Pragya Singh An Approach to Correlate Tandem Mass Spectral Data of Peptides with Amino Acid Sequences in a Protein Database
12/1/08 Peter Rademacher Drug Metabolism as a Cause of Drug Toxicity

 

Spring 2008

Date Speaker Paper (Click title to download PDF) Abstract of Discussion
4/14/08 Peter Rademacher In Vitro Metabolism of a Model Cyclopropylamine to Reactive Intermediate: Insights into Trovafloxacin-Induced Hepatotoxicity Click here for Peter's questions
4/21/08 Tasha Downing Cytosolic Region of TM6 in P-Glycoprotein: Topographical Analysis and Functional Perturbation by Site Directed Labeling Click here for Tasha's questions
4/28/08 Caleb Woods What is the Active Species of Cytochrome P450 during Camphor Hydroxylation? QM/MM Studies of Different Electronic States of Compound I and of Reduced and Oxidized Iron-Oxo Intermediates

Caleb's questions TBA

Click here for Supporting Information

5/5/08 Mimi Nguyen

POSTPONED

Metabolic Activation of the Antitumor Drug
5-(Aziridin-1-yl)-2,4-Dinitrobenzamide (CB1954) by NO Synthases

TBA
5/12/08 Rishi Sanyal Kemp elimination catalysts by computational enzyme design TBA
5/19/08 Tricia Zhao Heteromeric Complex Formation between CYP2E1 and CYP1A2: Evidence for the Involvement of Electrostatic Interactions Click here for Tricia's questions
5/26/08 HOLIDAY    

Wednesday

5/28/08

Mimi Nguyen

RESCHEDULED

Metabolic Activation of the Antitumor Drug
5-(Aziridin-1-yl)-2,4-Dinitrobenzamide (CB1954) by NO Synthases

TBA
6/2/08 Kip Conner, Kayte Zumberge & Michelle Leibrand Rotation talks  

Winter 2008

Date Speaker Paper (Click title to download PDF) Discussion Questions (PDF format)
1/7/08 no MNM    
1/14/08 Clara Hsia The Conversion of Vitamin K Epoxide to Vitamin K Quinone and Vitamin K Quinone to Vitamin K Hydroquinone Uses the Same Active Site Cysteines

Click here for Clara's questions

1/21/08 HOLIDAY    
1/28/08 Brendan Stamper Mechanistic Basis for Inflammation and Tumor Promotion in Lungs of 2,6-Di-tert-butyl-4-methylphenol-Treated Mice: Electrophilic Metabolites Alkylate and Inactivate Antioxidant Enzymes Click here for Brendan's questions
2/4/08 Shawna Hengel Identification of Cytochrome P450 3A4 Modification Site with Reactive Metabolite Using Linear Ion Trap-Fourier Transform Mass Spectrometry Click here for Shawna's questions
2/11/08 Matt Honaker Exploring the biochemical properties and remediation applications of the unusual explosive-degrading P450 system XplA/B Click here for Matt's questions
2/18/08 HOLIDAY    
2/25/08 Brooke Vandenbrink Differential Time-Dependent Inactivation of P450 3A4 and P450 3A5 by Raloxifene: A Key Role for C239 in Quenching Reactive Intermediates Click here for Brooke's questions
3/3/08 Mariko Nakano MicroRNA Regulates the Expression of Human Cytochrome P450 1B1 Click here for Mariko's questions

 

Autumn 2007

Date Speaker Paper (Click title to download PDF) Discussion Questions (DOC format)
10/15 Kevin Coe Transport, Metabolism, and Hepatotoxicity of Flutamide, Drug-Drug Interaction with Acetaminophen Involving Phase I and Phase II Metabolites Click here for Kevin's discussion questions
10/22 Oliver Parkinson Mechanism-Based Inactivation of Cytochrome P450 3A4
by 4-Ipomeanol
Click here for Oliver's discussion questions
10/29 Clara Hsia - CANCELLED The Conversion of Vitamin K Epoxide to Vitamin K Quinone and Vitamin K Quinone to Vitamin K Hydroquinone Uses the Same Active Site Cysteines NA
11/5 Laura Shireman Crystallographic and Thermodynamic Analysis of the Binding of S-Octylglutathione to the Tyr 7 to Phe Mutant of Glutathione S-Transferase from Schistosoma japonicum Click here for Laura's discussion questions
11/12 HOLIDAY - Veteran's Day    
11/19 Larissa Balogh The Oxidative Stress Metabolite 4-Hydroxynonenal Promotes Alzheimer Protofibril Formation

Click here for Supporting Information

Click here for Larissa's discussion questions
11/26 No MNM - sorry    
12/3 Kelsey Hanson Cytochrome b5 Increases the Rate of Product Formation by
Cytochrome P450 2B4 and Competes with Cytochrome P450 Reductase for a Binding Site on Cytochrome P450 2B4
TBA

 

Spring 2007

Date Speaker Paper (Click title to download PDF) Discussion Questions (DOC format)
4/16 Wendel Nelson No paper - topic is 'What a journal editor does and does not do" Your questions are expected
4/23 Carrie Mosher Metabolism-Dependent Mutagenicity of a Compound Containing a Piperazinyl Indazole Motif: Role of a Novel P450-Mediated Metabolic Reaction Involving a Putative Oxaziridine Intermediate Click here for Carrie's discussion questions
4/30 Mariko Nakano Metabolism of Furans in Vitro: Ipomeanine and 4-Ipomeanol Click here for Mariko's discussion questions
5/7 Pragya Singh

Covalent Modification of Microsomal Lipids by Thiobenzamide Metabolites in Vivo

Click here for Supporting Information

Click here for Pragya's discussion questions
5/14 Rishi Sanyal and Caleb Woods Rotation talks  
5/21 Tricia Zhao & Mimi Nguyen Rotation talks  

Winter 2007

Date Speaker Paper (Click title to download PDF) Discussion Questions (DOC format)
1/22 Brooke Vandenbrink Human Cytochrome b5 Requires Residues E48 and E49 to Stimulate the 17,20-Lyase Activity of Cytochrome P450c17 Click here for Brooke's discussion questions
1/29 Matt Honaker Maturation of a tetravirus capsid alters the dynamic properties and creates a metastable complex Click here for Matt's discussion questions
2/5 Clara Hsia Purified vitamin K epoxide reductase alone is sufficient for conversion of vitamin K epoxide to vitamin K and vitamin K to vitamin KH2 Click here for Clara's discussion questions
2/12 Tasha Downing A “Silent” Polymorphism in the MDR1 Gene Changes Substrate Specificity
*Click here for Supporting Material
*Click here for Glossary
Click here for Tasha's discussion questions
2/19 HOLIDAY    
2/26 Oliver Parkinson CYP2A13 expressed in human bladder metabolically activates 4-aminobiphenyl Click here for Oliver's discussion questions
3/5 Kelsey Hanson Characterization of Ebastine, Hydroxyebastine, and Carebastine Metabolism by Human Liver Microsomes and Expressed Cytochrome P450 Enzymes: Major Roles for CYP2J2 and CYP3A Click here for Kelsey's discussion questions

 

Autumn 2006

Date Speaker Paper (Click title to download PDF) Discussion Questions (DOC format)
10/23 Pete Rademacher "Liver X receptors regulate adrenal cholesterol balance" Click here for Pete's discussion questions
10/30 Laura Shireman "Trans Fatty Acid Derived Phospholipids Show Increased Membrane Cholesterol and Reduced Receptor Activation as Compared to Their Cis Analogs" Click here for Laura's discussion questions
11/06 Shawna Hengel "Reactive Carbonyls and Polyunsaturated Fatty Acids Produce a Hydroxyl Radical-like Species" Click here for Shawna's discussion questions
11/13 Brendan Stamper "CYP2E1 Overexpression Alters Hepatocyte Death
From Menadione and Fatty Acids by Activation
of ERK1/2 Signaling"
Click here for Brendan's discussion questions
11/20 Kevin Coe "Human Hepatic and Renal Microsomes, Cytochromes P450 1A1/2, NADPH:Cytochrome P450 Reductase and Prostaglandin H Synthase Mediate The Formation of Aristolochic Acid-DNA Adducts Found in Patients With Urothelial Cancer" Click here for Kevin's discussion questions
11/27 HOLIDAY    
12/04 Larissa Balogh "Cyclopentenone isoprostanes are novel bioactive products of lipid oxidation which enhance neurodegeneration" Click here for Larissa's discussion questions

 

Spring 2006

Date Speaker Paper (Click title to download PDF) Discussion Questions (DOC format)
April 10 Sumit Mahan Medicinal chemistry applied to a synthetic protein:
Development of highly potent HIV entry inhibitors
Click here for Sumit's discussion questions
April 17 Brendan Stamper From nonpeptide toward noncarbon protease inhibitors: Metallacarboranes as specific and potent inhibitors of HIV protease Click here for Brendan's discussion questions
April 24 Carrie Mosher Oxidative Deboronation of the Peptide Boronic Acid Proteasome Inhibitor Bortezomib: Contributions from Reactive Oxygen Species in This Novel Cytochrome P450 Reaction

Supporting Information

Click here for Carrie's discussion questions
May 1 Mariko Nakano Calibration of the Channel That Determines the omega-Hydroxylation Regiospecificity of Cytochrome P4504A1 Click here for Mariko's discussion questions
May 8 Elva Gao A Semiquantitative Method for the Determination of Reactive Metabolite Conjugate Levels in Vitro Utilizing Liquid Chromatography-Tandem Mass Spectrometry and Novel Quaternary Ammonium Glutathione Analogues Click here for Elva's discussion questions
May 15 Rotation Talks 1 and 2    
May 22 Rotation Talks 3 and 4    
May 29 HOLIDAY    

 

Winter 2006

Date Speaker Paper (Click title to download PDF) Discussion Questions (DOC format)
January 23 Jed Lampe Generation of New Protein Kinase Inhibitors Utilizing Cytochrome P450 Mutant Enzymes for Indigoid Synthesis Click here for Jed's discussion questions
January 30 Laura Shireman Plasmodium falciparum glutathione S-transferase - Structural and mechanistic studies on ligand binding and enzyme inhibition Click here for Laura's discussion questions
February 6 Shawna Hengel Direct Readout of Protein-Protein Interactions by Mass Spectrometry from Protein-DNA Microarrays

Supporting Information

Click here for Shawna's discussion questions
February 13 Brooke Vandenbrink The Highly Conserved Glu149 and Tyr190 Residues Contribute To Peroxynitrite-Mediated Nitrotyrosine Formation and the Catalytic Activity of Cytochrome P450 2B1 Click here for Brooke's discussion questions
February 20 Holiday    
February 27 Matt Honaker Binding of 7-methoxy-4-(aminomethyl)-coumarin to wild-type and W128F mutant cytochrome P450 2D6 studied by time-resolved fluorescence spectroscopy Click here for Matt's discussion questions
March 6 Kevin Coe Characterization of Vibrio cholerae Neuraminidase by a Novel Mechanism-Based Fluorescent Labeling Reagent Click here for Kevin's discussion questions

 

Autumn 2005

Date Speaker Paper Discussion Questions
October 17 Kyle Allen Cyclopropylamine inactivation of cytochromes P450: Role of metabolic intermediate complexes Click here for Kyle's discussion questions
October 24 Peter Rademacher Bioactivation of the Selective Estrogen Receptor Modulator Desmethylated Arzoxifene to Quinoids: 4'-Fluoro Substitution Prevents Quinoid Formation Click here for Pete's discussion questions
October 31 Guoying Tai Zafirlukast Metabolism by Cytochrome P450 3A4 Produces an Electrophilic r,â-Unsaturated Iminium Species That Results in the Selective Mechanism-Based Inactivation of the Enzyme Click here for Guoying's discussion questions
November 7 Dustin Smith Differential Mechanism-Based Inhibition of CYP3A4 and CYP3A5 by Verapamil Click here for Dustin's discussion questions
November 14 Larissa Balogh Analysis of Protein Covalent Modification by Xenobiotics Using a Covert Oxidatively Activated Tag: Raloxifene Proof-of-Principle Study Click here for Larissa's discussion questions
November 21 Clara Hsia

Detection of a Novel Reactive Metabolite of Diclofenac: Evidence for CYP2C9-Mediated Bioactivation via Arene Oxides

Click here for enlarged schemes from the paper

Click here for Clara's discussion questions

November 28 Josh Pearson Postponed until further notice  

 

Spring 2005

Speaker Paper
Sumit Mahajan Direct Observation of Ligand Binding to Membrane Proteins in Living Cells by a Saturation Transfer Double Difference (STDD) NMR Spectroscopy Method Shows a Significantly Higher Affinity of Integrin alphaIIbbeta3 in Native Platelets than in Liposomes
John Harrelson Kinetic Analysis of Oxidation of Coumarins by Human Cytochrome P450 2A6
  Rotation Talks

 

Winter 2005

Date Speaker Paper
Jan 24 Carrie Mosher Improved peptide identification in proteomics by two consecutive stages of mass spectrometric fragmentationImproved peptide identification in proteomics by two consecutive stages of mass spectrometric fragmentation
Jan 31 Josh Pearson Finding new components of the target of rapamycin (TOR) signaling network through chemical genetics and proteome chips
Feb 7 Clara Hsia Proteomic characterization of the human centrosome by protein correlation profiling
Feb 14 Dustin Smith Discovering potent and selective reversible inhibitors of enzymes in complex proteins
Feb 21 HOLIDAY  
Feb 28 Elva Gao A Top-down method for the determination of residue-specific solvent accessibility in proteins
Mar 7 Kevin Coe Androgen receptor phosphorylation: regulation and identification of the phosphorylation sites

 



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