
Project CRYSTALJanuary 14th, 2010(Crystallographers Researching with Young Scientists: Teaching and Learning) According to the Centers for Disease Control and Prevention, 18% of 12-19 year olds are obese. This is especially significant given the myriad of social and medical problems associated with obesity, including heart disease and Type 2 diabetes. Furthermore, over 75% of adolescents in the United States do not eat enough fruits and vegetables. Project CRYSTAL, developed by Hazel Holden, Professor of Biochemistry at the University of Wisconsin, Dan Toomey, Middle School Science Teacher at Edgewood School, and three of Holden’s graduate students, Nate Bruender, Amanda Carney, and Rachel Kubiak, was designed to address these two issues facing our nation at a “grass roots” level. Its mission is threefold in nature: (i) to instill a love for chemistry in middle school students by studying the main food elements: proteins, lipids, and carbohydrates, (ii) to provide hands-on laboratory experience in an active, state-of-the-art research laboratory thus fostering interest in a future science career, and (iii) to make chemistry more accessible to “at-risk” students by outreach activities. The curriculum aspect of Project Crystal is based around three modules presently being developed. The sixth grade module begins with basic concepts of matter, including a discussion of electrons, neutrons, protons, atoms, molecules, and chemical bonding. The scientific mentoring aspect of Project CRYSTAL currently involves six young scientists from Edgewood School that spend three hours each week in the laboratory working with the graduate students. Research in the Holden laboratory centers around the enzymes required for the biosynthesis of unusual sugars that are found attached, for example, to some antibiotics, antitumor agents, or to the outer surfaces of bacteria. The main technique employed in the laboratory is x-ray crystallography, which is a powerful method that allows one to “see” a protein in three dimensions. For this technique, crystals need to be grown of the protein of interest. During the fall of 2008, the Edgewood students (two each from sixth, seventh, and eighth grades) learned the basic elements of molecular biology including cloning, protein expression, and purifications. Indeed, one of their proteins has already crystallized!
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