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Biochemistry and Molecular Biology Education

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https://www.readbyqxmd.com/read/28544448/using-pymol-to-explore-the-effects-of-ph-on-noncovalent-interactions-between-immunoglobulin-g-and-protein-a-a-guided-inquiry-biochemistry-activity
#1
Zahilyn D Roche Allred, Heeyoung Tai, Stacey Lowery Bretz, Richard C Page
Students' understandings of foundational concepts such as noncovalent interactions, pH and pKa are crucial for success in undergraduate biochemistry courses. We developed a guided-inquiry activity to aid students in making connections between noncovalent interactions and pH/pKa . Students explore these concepts by examining the primary and tertiary structures of immunoglobulin G (IgG) and Protein A. Students use PyMOL, an open source molecular visualization application, to (1) identify hydrogen bonds and salt bridges between and within the proteins at physiological pH and (2) apply their knowledge of pH/pKa to association rate constant data for these proteins at pH 4 and pH 11...
May 24, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28544484/neglected-issues-concerning-teaching-human-adrenal-steroidogenesis-in-popular-biochemistry-textbooks
#2
Zhiyong Han, Mark S Elliott
In the human body, the adrenal steroids collectively regulate a plethora of fundamental functions, including electrolyte and water balance, blood pressure, stress response, intermediary metabolism, inflammation, and immunity. Therefore, adrenal steroidogenesis is an important biochemistry topic for students to learn in order for them to understand health consequences caused by deficiencies of enzymes in the adrenal steroidogenic pathways. However, popular biochemistry textbooks contain insufficient information and may sometimes give students a misimpression about certain aspects of human adrenal steroidogenesis...
May 19, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28520272/a-focus-on-polarity-investigating-the-role-of-orientation-cues-in-mediating-student-performance-on-mrna-synthesis-tasks-in-an-introductory-cell-and-molecular-biology-course
#3
Jeffrey T Olimpo, Daniel A Quijas, Anita M Quintana
The central dogma has served as a foundational model for information flow, exchange, and storage in the biological sciences for several decades. Despite its continued importance, however, recent research suggests that novices in the domain possess several misconceptions regarding the aforementioned processes, including those pertaining specifically to the formation of messenger ribonucleic acid (mRNA) transcripts. In the present study, we sought to expand upon these observations through exploration of the influence of orientation cues on students' aptitude at synthesizing mRNAs from provided deoxyribonucleic acid (DNA) template strands...
May 18, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28440907/the-story-of-crispr
#4
Adrian J Rawle, Fiona E Rawle
No abstract text is available yet for this article.
April 25, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28440901/examining-student-heuristic-usage-in-a-hydrogen-bonding-assessment
#5
Kathryn Miller, Thomas Kim
This study investigates the role of representational competence in student responses to an assessment of hydrogen bonding. The assessment couples the use of a multiple-select item ("Choose all that apply") with an open-ended item to allow for an examination of students' cognitive processes as they relate to the assignment of hydrogen bonding within a structural representation. Response patterns from the multiple-select item implicate heuristic usage as a contributing factor to students' incorrect responses...
April 25, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28436090/using-augmented-reality-to-teach-and-learn-biochemistry
#6
Juan Carlos Vega Garzón, Marcio Luiz Magrini, Eduardo Galembeck
Understanding metabolism and metabolic pathways constitutes one of the central aims for students of biological sciences. Learning metabolic pathways should be focused on the understanding of general concepts and core principles. New technologies such Augmented Reality (AR) have shown potential to improve assimilation of biochemistry abstract concepts because students can manipulate 3D molecules in real time. Here we describe an application named Augmented Reality Metabolic Pathways (ARMET), which allowed students to visualize the 3D molecular structure of substrates and products, thus perceiving changes in each molecule...
April 23, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28425189/the-global-ethics-corner-foundations-beliefs-and-the-teaching-of-biomedical-and-scientific-ethics-around-the-world
#7
Henry Jakubowski, Jianping Xie, Arup Kumar Mitra, Ravindra Ghooi, Saman Hosseinkhani, Mohsen Alipour, Behnam Hajipour, George Obiero
The profound advances in the biomolecular sciences over the last decades have enabled similar advances in biomedicine. These advances have increasingly challenged our abilities to deploy them in an equitable and ethically acceptable manner. As such, it has become necessary and important to teach biomedical and scientific ethics to our students who will become the researchers, medical professionals, and global citizens of the future. As advances in the biosciences and medicine are made, developed, and used across the globe, our survival on an endangered planet requires global dialog and consensual action...
April 19, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28419715/a-survey-on-faculty-perspectives-on-the-transition-to-a-biochemistry-course-based-undergraduate-research-experience-laboratory
#8
Paul A Craig
It will always remain a goal of an undergraduate biochemistry laboratory course to engage students hands-on in a wide range of biochemistry laboratory experiences. In 2006, our research group initiated a project for in silico prediction of enzyme function based only on the 3D coordinates of the more than 3800 proteins "of unknown function" in the Protein Data Bank, many of which resulted from the Protein Structure Initiative. Students have used the ProMOL plugin to the PyMOL molecular graphics environment along with BLAST, Pfam, and Dali to predict protein functions...
April 16, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28414867/basic-education-mexican-teachers-knowledge-of-biotechnology-and-attitudes-about-the-consumption-of-genetically-modified-foods
#9
Zacarías Jiménez-Salas, Eduardo Campos-Góngora, Blanca E González-Martínez, Alexandra Tijerina-Sáenz, Angélica D Escamilla-Méndez, Erik Ramírez-López
Over the past few years, a new research field has emerged, focusing on the social-scientific criteria for the study of opinions toward genetically modified foods (GMFs), since these may be limiting factors for the success or failure of these products. Basic education is the first step in the Mexican education system, and teachers may wield an outsized influence on the attitudes and preferences of children, prospective future consumers of these products. To better understand the current state of knowledge of biotechnology issues and opinions toward the consumption of GMF of Mexican teachers, a questionnaire was distributed, and 362 Mexican teachers of basic education responded...
April 16, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28407453/stressing-escherichia-coli-to-educate-students-about-research-a-cure-to-investigate-multiple-levels-of-gene-regulation
#10
Janet McDonough, Lara K Goudsouzian, Agllai Papaj, Ashley R Maceli, Vanja Klepac-Ceraj, Celeste N Peterson
Course-based undergraduate research experiences (CUREs) have been shown to increase student retention and learning in the biological sciences. Most CURES cover only one aspect of gene regulation, such as transcriptional control. Here we present a new inquiry-based lab that engages understanding of gene expression from multiple perspectives. Students carry out a forward genetic screen to identify regulators of the stationary phase master regulator RpoS in the model organism Escherichia coli and then use a series of reporter fusions to determine if the regulation is at the level of transcription or the post-transcription level...
April 13, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28314074/better-understanding-of-homologous-recombination-through-a-12-week-laboratory-course-for-undergraduates-majoring-in-biotechnology
#11
Ming Li, Xiaodong Shen, Yan Zhao, Xiaomei Hu, Fuquan Hu, Xiancai Rao
Homologous recombination, a central concept in biology, is defined as the exchange of DNA strands between two similar or identical nucleotide sequences. Unfortunately, undergraduate students majoring in biotechnology often experience difficulties in understanding the molecular basis of homologous recombination. In this study, we developed and implemented a 12-week laboratory course for biotechnology undergraduates in which gene targeting in Streptococcus suis was used to facilitate their understanding of the basic concept and process of homologous recombination...
March 17, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28294503/exploring-protein-structure-and-dynamics-through-a-project-oriented-biochemistry-laboratory-module
#12
James M Lipchock, Patrick S Ginther, Bonnie B Douglas, Kelly E Bird, J Patrick Loria
Here, we present a 10-week project-oriented laboratory module designed to provide a course-based undergraduate research experience in biochemistry that emphasizes the importance of biomolecular structure and dynamics in enzyme function. This module explores the impact of mutagenesis on an important active site loop for a biomedically-relevant human enzyme, protein tyrosine phosphatase 1B (PTP1B). Over the course of the semester students guide their own mutant of PTP1B from conception to characterization in a cost-effective manner and gain exposure to fundamental techniques in biochemistry, including site-directed DNA mutagenesis, bacterial recombinant protein expression, affinity column purification, protein quantitation, SDS-PAGE, and enzyme kinetics...
March 13, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28251766/new-horizons-in-biochemistry-molecular-biology-education-an-iubmb-sponsored-conference-5-8-september-2017-weizmann-institute-of-science-israel
#13
EDITORIAL
Gül Güner Akdogan, Janet Macaulay, Phillip Ortiz, Anat Yarden
No abstract text is available yet for this article.
March 2, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28251763/a-13-week-research-based-biochemistry-laboratory-curriculum
#14
Scott T Lefurgy, Emily C Mundorff
Here, we present a 13-week research-based biochemistry laboratory curriculum designed to provide the students with the experience of engaging in original research while introducing foundational biochemistry laboratory techniques. The laboratory experience has been developed around the directed evolution of an enzyme chosen by the instructor, with mutations designed by the students. Ideal enzymes for this curriculum are able to be structurally modeled, solubly expressed, and monitored for activity by UV/Vis spectroscopy, and an example curriculum for haloalkane dehalogenase is given...
March 2, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28509370/use-of-mushroom-tyrosinase-to-introduce-michaelis-menten-enzyme-kinetics-to-biochemistry-students
#15
William H Flurkey, Jennifer K Inlow
An inexpensive enzyme kinetics laboratory exercise for undergraduate biochemistry students is described utilizing tyrosinase from white button mushrooms. The exercise can be completed in one or two three-hour lab sessions. The optimal amounts of enzyme, substrate (catechol), and inhibitor (kojic acid) are first determined, and then kinetic data is collected in the absence and presence of the inhibitor. A Microsoft Excel template is used to plot the data and to fit the Michaelis-Menten equation to the data to determine the kinetic parameters Vmax and Km ...
May 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/28509368/shining-the-spotlight-on-education
#16
EDITORIAL
Joan J Guinovart
No abstract text is available yet for this article.
May 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/27873457/using-yeast-to-determine-the-functional-consequences-of-mutations-in-the-human-p53-tumor-suppressor-gene-an-introductory-course-based-undergraduate-research-experience-in-molecular-and-cell-biology
#17
Daria S Hekmat-Scafe, Sara E Brownell, Patricia Chandler Seawell, Shyamala Malladi, Jamie F Conklin Imam, Veena Singla, Nicole Bradon, Martha S Cyert, Tim Stearns
The opportunity to engage in scientific research is an important, but often neglected, component of undergraduate training in biology. We describe the curriculum for an innovative, course-based undergraduate research experience (CURE) appropriate for a large, introductory cell and molecular biology laboratory class that leverages students' high level of interest in cancer. The course is highly collaborative and emphasizes the analysis and interpretation of original scientific data. During the course, students work in teams to characterize a collection of mutations in the human p53 tumor suppressor gene via expression and analysis in yeast...
March 4, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/27807934/semester-long-inquiry-based-molecular-biology-laboratory-transcriptional-regulation-in-yeast
#18
Peter M Oelkers
A single semester molecular biology laboratory has been developed in which students design and execute a project examining transcriptional regulation in Saccharomyces cerevisiae. Three weeks of planning are allocated to developing a hypothesis through literature searches and use of bioinformatics. Common experimental plans address a cell process and how three genes that encode for proteins involved in that process are transcriptionally regulated in response to changing environmental conditions. Planning includes designing oligonucleotides to amplify the putative promoters of the three genes of interest...
March 4, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/27807923/modeling-of-dna-and-protein-organization-levels-with-cn3d-software
#19
Panagiotis K Stasinakis, Despoina Nicolaou
The molecular structure of living organisms and the complex interactions amongst its components are the basis for the diversity observed at the macroscopic level. Proteins and nucleic acids are some of the major molecular components, and play a key role in several biological functions, such as those of development and evolution. This article presents an educational, bioinformatics-based process, designed to enhance a better understanding of the structure of the above molecules. In addition, by using selected protein molecules, it attempts to clarify protein organization levels and how these are related with the structural and functional diversity, which define the biodiversity of living organisms at the macroscopic level...
March 4, 2017: Biochemistry and Molecular Biology Education
https://www.readbyqxmd.com/read/27801537/mutual-benefit-for-foreign-medical-students-and-chinese-postgraduates-a-mixed-team-based-learning-method-overcomes-communication-problems-in-hematology-clerkship
#20
Xianling Chen, Buyuan Chen, Xiaofan Li, Qingxiao Song, Yuanzhong Chen
Hematology is difficult for students to learn. A beneficial education method for hematology clerkship training is required to help students develop clinical skills. Foreign medical students often encounter communication issues in China. To address this issue, Chinese post-graduates from our institute are willing to assist with educating foreign students. Therefore, we propose a mixed team-based learning method (MTBL) which might overcome communication problems in hematology clerkship. Twenty-two foreign medical Students attended a 2-week hematology clerkship in Fujian Medical University Union Hospital...
March 4, 2017: Biochemistry and Molecular Biology Education
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