lecture 6

lecture 6 - Lecture 6 1/21/10 Background reading: Garrett...

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Lecture 6 1/21/10 Background reading: Garrett and Grisham: Chapter 6: Pages 194-201 Chapter 15: Bottom of Page 491- 497 Outline: ± Myoglobin ± Quaternary structure (IV o structure) ± Hemoglobin ± Comparison of hemoglobin with myoglobin The remainder of the time for this lecture will be devoted to a review session for the first Midterm Exam, which will be held on January 26.
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± Myoglobin Myoglobin is also a protein that has a heme group attached to it. It has a molecular weight of 16,700 and contains 153 amino acids. It functions as an oxygen carrier. It is present in muscles where it stores oxygen and enhances the rate of oxygen diffusion through the cell. Structure contains eight α -helical segments separated by bends and contains a hydrophobic core. Very compact molecule. All polar R groups are on the surface and all nonpolar R groups are in the interior of the protein. The ability of myoglobin to bind oxygen depends on the presence of a heme group.
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This note was uploaded on 06/23/2010 for the course BIS 102 taught by Professor Hilt during the Winter '08 term at UC Davis.

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lecture 6 - Lecture 6 1/21/10 Background reading: Garrett...

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