2.3.1 protein structure & function-r

2.3.1 protein structure & function-r - 2.3.2 Protein...

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2.3.2 Protein Structure and  Function
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What do you think about when  you hear the word protein?
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Sources of Protein :  eggs  dairy  fish  meat  nuts  legumes (beans, lentils, soy…)  grains (wheat, corn, oats…)  vegetables & fruit
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Overview of Protein Structure :   macromolecules made up of   amino acids  20 different amino acids • structure relates to function  
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Amino acids : Fig 6.1
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20 Distinct “R” Groups Fig 6.1
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20 Amino Acids Essential histadine  isoleucine leucine      lysine  methionine  phenylalanine   threonine  tryptophan valine Nonessential alanine  asparagine  aspartic acid   glutamic acid  glutamine a   serine arginine a   cysteine a   glycine a  proline a   tyrosine a
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Conditionally essential amino acids  become essential in certain  physiological situations E.g.: Tyrosine becomes essential in  people with Phenylketonuria (PKU)   phenylalanine tyrosine
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Protein Synthesis DNA    → → RNA    Protein  → → transcription translation
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2.3.1 protein structure & function-r - 2.3.2 Protein...

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