NUTRITION 10 16 18.docx - Protein organization determines function Protein structure has four levels Primary structure Sequential order of amino acids

NUTRITION 10 16 18.docx - Protein organization determines...

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Protein organization determines function Protein structure has four levels Primary structure Sequential order of amino acids Secondary Structure Spinal shape due to chemical bonding between something Tertiary and quaternary structure Further folding into a unique three-dimensional shape that may be globular or fibrous Amino acid sequence of normal hemoglobin: val – his – leu – thr – pro – glu – glu Amino acid sequence of sickle cell hemoglobin: val – his – leu – pro – val – glu Protein Function Proteins lose shape when subjected to Heat Acids and bases Heavy metals Alcohol Denaturation results in an irreversible loss in protein function Protein synthesis can be limited Incomplete protein: does not contain all essential amino acids in sufficient quantities Complete protein: contains sufficient amounts of all nine essential amino acids Protein synthesis can be enhanced Mutual supplementation: combining two incomplete proteins to make a complete protein
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  • Fall '17
  • Amanda Conrad
  • Nutrition, vegetarian diets, protein organization

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