HUN2201 Proteins Lecture Outline

HUN2201 Proteins Lecture Outline - Appendix O (Proteins)...

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Appendix O (Proteins) PROTEINS I. INTRODUCTION What are proteins? Long ___________ of __________ __________. II. AMINO ACIDS A. Chemistry 1. Composition ______________ Hydrogen ______________ ______________ 2. Basic structure ____________ carbon ____________ group N_____ ____________ group ______H ______________ side __________ B. Essential Amino Acids (_______) Must be _____________ by the __________ ____________ be made in the ___________ ___ different ___________ acids C. Non-Essential Amino Acids (________) Can be _______ in the _______ o Source of ___________ + fragments of ______, _______ , _________ ___ different _________ acids Essential Amino Acids Nonessential Amino Acids Histidine Alanine Isoleucine Arginine* Leucine Asparagine Lysine Aspartic Acid (aspartate) Methionine Cysteine* Phenylalanine Glutamic Acid (glutamate) T h r e o n i n e G l u t a m i n e * Tryptophan Glycine* V a l i n e P r o l i n e * S e r i n e T y r o s i n e * * Considered conditionally essential by the Institute of Medicine, Food and Nutrition Board
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Appendix O (Proteins) D. “___________________” Essential Amino Acids Becomes ______ under certain ______________ o ________ of ______ precursor o o Phenylketonuria Inherited genetic disorder Newborn ______________ screening __________________ cannot be converted to _________________ ________________ becomes ____________________ III. PROTEINS A. Structure ___________ chains o _________ acids __________ together “___________” bond o ___________ amino acids o ___________________ reaction 1. Sequence of amino acids Coded in cell’s _______ Order is __________ to protein’s ___________ 2. Protein shape ___________ chains form other _________ Fold, ___________ ________ shape ___________ is critical to ___________ o Primary; sequence of _____________ amino ____________ o Secondary; __________ folding ( α -_________, β -___________ sheets) o _______________; _________ level __________________ o Quaternary; ____________ of different ___________ chains Sickle Cell Disease Genetic ________________ Distorts ____________________ structure of _________________ Alters _______________ of hemoglobin Glutamic acid to _____________ transversion Can block ______________ causing _________ and ____________ Easily _____________ leading to low ________ # and ____________
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Appendix O (Proteins) 3. Denaturation of proteins Changes _______ structure ____________ functions ________, ________, mechanical force, ________ B. Functions Source of _____________ & ________ Needed for making _________ proteins 1. Structural and ________________ functions _________ and tooth _________ _____________ Muscle __________ 2. Enzymes _____________ metabolic ____________ ________________ compounds ________________ compounds 3. Hormones ____________ body processes
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HUN2201 Proteins Lecture Outline - Appendix O (Proteins)...

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