Lec9 - Click to edit Master subtitle style Lecture 9...

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Unformatted text preview: Click to edit Master subtitle style Lecture 9: Proteins and Wednesday 10/13/10 Reading Chapter 5 pgs. 77-89 Web Activities: 5.4, 5.5 Online Lecture 9 Quiz 9-1 Fall 2010, Bio 93, O’Dowd and Warrior, UCI - Copyright: All rights Proteins • Function – Support, storage, transport, signaling, receptors, movement, catalysis • Structure – Amino Acids: monomers, combine to form polymers – Polypeptide: polymer of AAs in specific sequence – Protein: one or more polypeptides with specific 3-D conformation Amino acids [email protected] proteins 9-2 Fall 2010, Bio 93, O’Dowd and Warrior, UCI - Copyright: All rights Amino Acids • Structure – Alpha Carbon • Amino group • Hydrogen • Carboxyl group • R group: variable side chain – Hydrophobic – Hydrophilic – Ionized (acids and bases) R 9-3 Fall 2010, Bio 93, O’Dowd and Warrior, UCI - Copyright: All rights 9-4 Fall 2010, Bio 93, O’Dowd and Warrior, UCI - Copyright: All rights The function of a protein depends on its conformation • There are three levels of structure in a single polypeptide 1. Primary 2. Secondary 3. Tertiary • Two or more polypeptides (oligomer)...
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Lec9 - Click to edit Master subtitle style Lecture 9...

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