San José State University Chemistry Department CHEM 130A, Biochemistry I, Section 01, Spring 2014 Instructors: Prof. Marc d’Alarcao Dr. Elizabeth Pollom Office Location: MD: Duncan Hall 607 EP: Duncan Hall 605 Email: marc.dalarcao@sjsu.edu (preferred method of contact) epollom@stanford.edu (preferred method of contact) Office Hours: Class Days/Time: Classroom: GE/SJSU Studies Category: Prerequisites: Tue and Thu at 2:30 - 3:30 PM, and by appointment Tuesdays and Thursdays at 10:30 – 12:20 PM Duncan Hall 135 Partial Fulfillment of Area R: Earth & Environment CHEM 55 (with grades of "C" or better; "C-" not accepted). CHEM 112B (with grades of "C" or better; "C-" not accepted). Course Web Page Instructions: http://www.sjsu.edu/at/ec/canvas/ Login: https://sjsu.instructure.com/ Course Description Chemistry of amino acids, carbohydrates, lipids and nucleotides. Studies of protein structure and function, protein isolation, enzyme kinetics and enzyme mechanisms. This course also contains content that overlaps with Area R learning objectives. Course Goals and Learning Objectives Course Learning Outcomes Upon successful completion of the course, students will be able to describe and solve problems related to: CLO (1) the structure and function of the major classes of biomolecules, CLO (2) the chemical and physical mechanisms of their action, and CLO (3) the experimental basis by which these mechanisms are deduced. GE Area R (Earth and Environment) Goal Biochemistry I, CHEM 130A, spring 2014 Page 1 of 10 Students will cultivate knowledge of the scientific study of the physical universe or its life forms. Students will understand and appreciate the interrelationship of science and human beings to each other. SJSU Studies Area R Learning Outcomes addressed by Chem 130A: Upon successful completion of this course, students will be able to: Area R GELO (2): distinguish science from pseudoscience. Area R GELO (3): apply a scientific approach to answer questions about the earth and environment. Additional this course addresses the following GE Content Objectives: Diversity: Issues of diversity shall be incorporated in an appropriate manner. Civic Learning: Courses shall address the civic relevance of the topic in an appropriate manner. “A minimum aggregate GPA of 2.0 SJSU Studies (R, S, & V) shall be required of all students as a graduation requirement.” To see full text, review University Policy S11-3 at http://www.sjsu.edu/senate/docs/S11-3.pdf. Program Learning Objectives Covered in CHEM 130A Upon successful completion of the course, students will be able to: PLO (5) - Demonstrate understanding of core concepts and to effectively solve problems in biochemistry. Required Texts/Readings Textbook Donald Voet and Judith Voet Biochemistry, 4th Edition (ISBN: 978-0-470-57095-1) Other Readings Occasionally papers from the scientific literature will be suggested for additional information on certain topics covered. Dropping and Adding Students are responsible for understanding the policies and procedures about add/drops, academic renewal, etc. Instructions for adding or dropping a class are available at: http://my.sjsu.edu/students/student_tutorials/index.html. The deadlines for adding or dropping a class are available at http://www.sjsu.edu/registrar/calendar/2144/index.html. Biochemistry I, CHEM 130A, spring 2014 Page 2 of 10 Information about late drops is available at: http://www.sjsu.edu/aars/policies/latedrops/ Students should be aware of the current deadlines and penalties for adding and dropping classes. Assignments and Grading Policy Requirements: Graded work will include a total of three in-class exams, one comprehensive final exam, and three in-class quizzes. Homework problems from the text will be suggested, but not graded. It is assumed that students will do all suggested homework. Working the homework problems is an excellent way to prepare for exams and quizzes. Course Grade: There are five equally weighted scores that will determine the final grade in the course: Exam I, Exam II, Exam III, Final Exam, and Quiz Average. Each will be given a raw score and a scaled score. The raw score will simply be the number of points earned for correct answers on a particular exam or quiz, while the scaled score will reflect your performance on that material as compared with your classmates. Scores will never be scaled down. Generally, the average score on an exam will be scaled to the C+/B- range, though I reserve the right to adjust this in either direction if, in my estimation, the class overall performed differently than a “typical” class. The final grade for the course will be determined by averaging five scaled scores: those from in-class Exams I, II, and III, the comprehensive Final Exam, and the quiz average (all five weighted equally). The course grade will be determined from the resulting average as follows: Scaled Score Average Final Course Grade 97-100 94-96 90-93 A+ A A- 87-89 84-86 80-83 B+ B B- 77-79 74-76 70-73 C+ C C- 67-69 64-66 60-63 < 60 D+ D DF Biochemistry I, CHEM 130A, spring 2014 Page 3 of 10 Missed Exams and Quizzes If an exam or quiz is missed without a legitimate excuse a scaled score of 0 will be entered for that exam. If an acceptable excuse is provided then the exam grade will be prorated. In no case will a make-up exam or quiz be given. Exam Regrades If you feel that an error was made in the grading of your exam you may submit the exam, together with a written description of the error, to me for regarding not later than one week after the graded exam is returned to the class. However, I will not entertain requests for more partial credit on a problem unless the posted partial credit scheme was not properly applied to your exam. Be aware that students who submit frivolous regrade requests may become ineligible to receive future letters of recommendation from me. University, College, and Department Policies Students in this course are expected to be familiar with and follow various policies developed by the University and the Chemistry Department. The important policies are: Consent for Recording of Class and Public Sharing of Instructor Material University Policy S12-7, http://www.sjsu.edu/senate/docs/S12-7.pdf, requires students to obtain instructor’s permission to record the course. “Common courtesy and professional behavior dictate that you notify someone when you are recording him/her. You must obtain the instructor’s permission to make audio or video recordings in this class. Such permission allows the recordings to be used for your private, study purposes only. The recordings are the intellectual property of the instructor; you have not been given any rights to reproduce or distribute the material.” “Course material developed by the instructor is the intellectual property of the instructor and cannot be shared publicly without his/her approval. You may not publicly share or upload instructor generated material for this course such as exam questions, lecture notes, or homework solutions without instructor consent.” Academic Integrity “Your commitment as a student to learning is evidenced by your enrollment at San Jose State University. The University Academic Integrity Policy S07-2 at http://www.sjsu.edu/senate/docs/S07-2.pdf requires you to be honest in all your academic course work. Faculty members are required to report all infractions to the office of Student Conduct and Ethical Development. The Student Conduct and Ethical Development website is available at http://www.sjsu.edu/studentconduct/.” [From the SJSU Accessible Syllabus template, updated Jan. 13, 2014] Campus Policy in Compliance with the American Disabilities Act “If you need course adaptations or accommodations because of a disability, or if you need to make special arrangements in case the building must be evacuated, please make an appointment with me as soon as possible, or see me during office hours. Presidential Directive 97-03 at Biochemistry I, CHEM 130A, spring 2014 Page 4 of 10 http://www.sjsu.edu/president/docs/directives/PD_1997-03.pdf requires that students with disabilities requesting accommodations must register with the Accessible Education Center (AEC) at http://www.sjsu.edu/aec to establish a record of their disability.” [From the SJSU Accessible Syllabus template, updated Jan. 13, 2014] Emergencies and Evacuations "If you hear a continuously sounding alarm, or are told to evacuate by Emergency Coordinators (colored badge identification), walk quickly to the nearest stairway (end of each hall). Take your personal belongings, as you may not be allowed to immediately return. Follow instructions of Emergency Coordinators. Be quiet so you can hear. Once outside, move away from the building. Do not return to the building unless the Police or Emergency Coordinators announce that you may." From Addendum to all Chemistry Department Greensheets – revised August 2006 Chemical Safety Chem 120S is a required course for all chemistry majors and minors and a prerequisite for all Chem 180/298 research. (From Addendum to all Chemistry Department Greensheets – revised August 2006) Workload Expectation “Success in this course is based on the expectation that students will spend, for each unit of credit, a minimum of forty-five hours over the length of the course (normally 3 hours per unit per week with 1 of the hours used for lecture) for instruction or preparation/studying or course related activities including but not limited to internships, labs, clinical practica. Other course structures will have equivalent workload expectations as described in the syllabus.” From SJSU Academic Senate Policy S12-3 Biochemistry I, CHEM 130A, spring 2014 Page 5 of 10 CHEM 130A, Biochemistry I, Spring 2014, Course Schedule The schedule is subject to change. Changes will be noted in class. Class Date Lecturer Readings and Topics 1 Jan. 23 MD Chapter 1 – Intro, cells, basic energetics, intramolecular forces 2 Jan. 28 MD Chapter 2 - Water, pH, electrolytes, buffers 3 Jan. 30 MD Chapter 3 - Thermodynamics 4 Feb. 4 MD Chapter 4 - Amino acids 5 Feb. 6 MD Chapter 6 - Intro to proteins, purification 6 Feb. 11 MD Quiz 1; Chapter 7 - Proteins, primary structure 7 Feb. 13 MD Chapter 7 - Proteins, AA analysis, chemical synthesis 8 Feb. 18 MD Chapter 8 - Proteins, secondary structure 9 Feb. 20 MD Chapter 8 - Proteins, secondary and tertiary structure 10 Feb. 25 MD Chapter 8 - Proteins, tertiary, quaternary structure 11 Feb. 27 MD Chapter 9 - Protein folding 12 Mar. 4 MD Chapter 10 - Hemoglobin 13 Mar. 6 14 Mar. 11 MD Chapter 11 - Carbohydrates 15 Mar. 13 MD Chapter 11 - Carbohydrates 16 Mar. 18 MD Chapter 11 - Carbohydrates 17 Mar. 20 MD Quiz 2; Chapter 12 - Lipids 18 Apr. 1 MD Chapter 12 - Lipids 19 Apr. 3 MD Chapter 12 - Lipids 20 Apr. 8 MD Chapter 12 - Lipids 21 Apr. 10 EP Chapter 13 - Introduction to enzymes 22 Apr. 15 23 Apr. 17 EP Chapter 14 - Enzyme kinetics 24 Apr. 22 EP Chapter 14 - Enzyme kinetics 25 Apr. 24 EP Chapter 14 - Enzyme inhibition 26 Apr. 29 EP Quiz 3; Chapter 15 - Enzyme mechanisms 27 May 1 EP Chapter 15 - Enzyme mechanisms 28 May 6 EP Chapter 15 - Enzyme mechanisms 29 May 8 30 May 13 Final May 16 9:45-12:00 Exam I Exam II Exam III MD & EP Comprehensive Review Comprehensive Final Exam APPENDIX 1: CHEM 130A – Biochemistry I Examples of Specific Content Related to Area R GELOs Diversity Issues 1. Biochemistry was discovered and developed by a diverse group of scientists. a. Class activities: When their discoveries are discussed in lecture, underscore the triumphs and challenges of scientists with diverse backgrounds in the development of modern biochemistry. Examples include Maud Menten (as in Michaelis-Menten equation), G.N. Ramachandran (as in Ramachandran plot), Gerty Cori (as in the Cori cycle), etc. b. Assessment activities: Exam and quiz questions. Please see sample question 1. 2. The two sides of sickle-cell trait. a. Class activity: Discuss sickle cell disease including the specific mutation involved and the biochemical and medical consequences. Discuss the resistance to malaria that is conferred to those who are heterozygous in sickle-cell trait. Point out that while 1 in 90,000 Americans has sickle cell disease, the prevalence among African Americans is 1 in 500. Discuss the issues related to research equity, treatment quality, and the role of legislative action in addressing this disparity. Note that despite the fact that cystic fibrosis affects fewer than half as many people as sickle cell disease, the NIH spends 1.4 times as much on the former than the latter (see Pediatrics 2006, 117, 1763-70.) b. Assessment activities: Exam and quiz questions. Please see sample questions 2, 3. 3. Lactose intolerance. a. Class activity: Discuss the evolutionary advantage of having infants lose the ability to digest lactose as they get older. If this is indeed advantageous, why do certain populations retain the ability to digest lactose throughout their life? Discuss possible reasons that lactose intolerance roughly correlates with latitude. b. Assessment activities: Exam and quiz questions. Please see sample question 4. 4. Dietary fish and heart health. a. Class activity: Discuss the epidemiological studies showing very low incidence of coronary heart disease among Greenland Inuit populations despite high fat diets, and the hypothesis that a diet high in cold water (fatty) fish is responsible. Discuss the relationship between omega-3 fatty acids, prostaglandins, clotting times, and heart health. What is the role of low dose aspirin in improving heart health? b. Assessment activities: Exam and quiz questions. Please see sample questions 5, 6, 7. 5. 6. Civic Content 7. An essential vitamin that shaped the world: the role of scurvy in history. a. Class activities: Discuss the biochemistry, pathology, and history of scurvy. Discuss the role of scurvy in shaping the modern world, including the consequences of the rescue of Jacques Cartier’s crew from scurvy by the St. Lawrence Iroquoian Chief Donnacona, the death of Vitus Bering from scurvy because he ignored the advice of his naturalist Georg Steller to eat the curative scurvy grass that was abundant on their route, and the role of lime juice in British naval grog in establishing the British navy as the dominant sea force in the 16th-19th centuries. b. Assessment activities: Exam and quiz questions. Please see sample questions 8, 9, 10. 8. Altitude adaptation and culture a. Class activities: Discuss the evolutionary advantages of hemoglobin binding to bisphosphoglycerate (BPG), including the ability to adapt to high altitude. Ask the class to name the highest elevation national capital. Use this as an opportunity to point out that the answer is different depending on your political opinions. (i.e. Lhasa is higher that La Paz, but is only a “national capital” if you believe Tibet is a country). Discuss the fact that more than half a million people live in each of these cities and explain the biochemical mechanisms by which they can do so despite the rarefied air. Mention the interesting phenomenon that unlike in many sea-level cities, in La Paz, the poor neighborhoods are located at higher elevation than the affluent neighborhoods. Also, discuss the relationship of this topic to blood doping in bicycle racing. b. Assessment activities: Exam and quiz questions. Please see sample question 11. Distinguishing Science from Pseudoscience 9. How are biochemical discoveries made? a. Class activity: Discuss why it took so long to establish that vitamin C deficiency causes scurvy, including the lack of controlled experiments, the changing content of vitamin C in foods over time because of oxidation upon exposure to heat or metals such as copper and iron, and the prevalence of ineffective “snake oil” cures. b. Assessment activities: Exam and quiz questions. Please see sample questions 9. 10. Weight loss fads. a. Class activity: Discuss the actual biochemical and physiological consequences of certain diet fads and aids that claim to lead to weight loss. Focus on how experiments would be designed to confirm an effective method for weight loss. b. Assessment activities: Exam and quiz questions. Please see sample question 12. APPENDIX 2: Sample test and/or quiz questions used to assess GE Area R LOs in CHEM 130A 1. Identify a person mentioned in lecture who was responsible for advancing the field of biochemistry and who had to overcome some personal challenges to do so. Please a) name the person, b) identify her/his achievement in biochemistry, and c) describe the personal challenge he/she faced and how it was overcome. 2. 3. Sickle cell disease is a destructive condition that can significantly reduce life expectancy. The disease is hereditary. Please a) describe the biochemical change that results in the disease, and b) explain how the sickle cell gene has be maintained in the gene pool despite the destructive disease it causes. 4. 5. 6. Describe a situation where, in your opinion, research funding for a human disease with biochemical components has been inequitably allocated. Why do you think the allocation is not equitable? Are there public policy solutions that could be applied to redressing the inequity? 7. 8. Lactose is -4-D-galactopyranosyl-D-glucopyranose. Please draw the chemical structure of lactose. Do you expect any humans to be able to digest lactose’s beta glycosidic linkage? If so, please describe the evolutionary advantages that may have made this possible. 9. 10. 11. Describe ways in which increasing the ratio of -3 to -6 fatty acids in the diet can affect heart health. 12. 13. Describe a possible biochemical basis for the observation that Greenland Inuit populations have lower incidence of heart disease than other populations consuming high-fat diets. 14. 15. 16. Why do physicians advise their patients to avoid taking aspirin before surgery? What is the biochemical and biological reason for the effect that leads to this advice? 17. 18. Describe, in detail, the cause of scurvy and the biochemical process affected in scurvy. How does altering this process lead to the symptoms of the disease? 19. 20. 21. Why did it take so long for the cause of scurvy to be unequivocally established? 22. How did cultural differences among the navies of France, England, Spain, and Portugal affect the incidence of scurvy in their sailors? Give an example of a historical consequence of these differences. 23. 24. As one of the favorites to win the La Paz, Bolivia marathon, you have trained there for the several weeks it requires to become adapted to its 3700-m altitude. A manufacturer of running equipment who sponsors an opponent has invited you for the weekend to a prerace party at a beach house near Lima, Peru, with the assurance that you will be flown back to La Paz at least a day before the race. Is this a token of respect for you or an underhanded attempt to handicap you in the race? Explain your answer using your knowledge of the biochemistry of altitude acclimation. 25. 26. 27. An eat-all-you-want nostrum, which was touted as a “starch blocker” [and which the Food and Drug Administration ultimately banned], contained an -amylase-inhibiting protein extracted from beans. If this substance had really worked as advertised, what unpleasant side effects would have resulted from its ingestion with a starch-containing meal? Discuss why this substance, which inhibits -amylase in vitro, would not do so in the intestines after oral ingestion.