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Protein Exhibition By: Alyssa Walter, Jason Snook, Meredith Zimmer, Ben Moyer
Structure of an Amino Acid
Examples of Different Amino Acids Serine Cysteine
Structure of an Amino Acid <ul><li>Amino acids have an amino group and a carboxyl group </li></ul><ul><li>Both groups are ...
Peptide Bond
Peptide Bond <ul><li>When two amino acids join and go through a condensation reaction. </li></ul><ul><li>Water molecule re...
Condensation Reactions <ul><li>A chemical reaction in which two molecules become covalently bonded to each other through t...
Polypeptides
Polypeptides <ul><li>Chain of amino acids </li></ul><ul><li>Range from a few to a thousand or more monomers </li></ul><ul>...
Function of Proteins <ul><li>*Functions of proteins can be interchangeable with functions of polypeptides </li></ul>Type o...
Sources of Protein (food)
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Protein Powerpoint

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  • there is a print error in the peptide bond , it should be N-H. (H is missing)
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Transcript of "Protein Powerpoint"

  1. 1. Protein Exhibition By: Alyssa Walter, Jason Snook, Meredith Zimmer, Ben Moyer
  2. 2. Structure of an Amino Acid
  3. 3. Examples of Different Amino Acids Serine Cysteine
  4. 4. Structure of an Amino Acid <ul><li>Amino acids have an amino group and a carboxyl group </li></ul><ul><li>Both groups are covalently bonded to the center carbon atom, called the alpha carbon. </li></ul><ul><li>Bonded to the alpha carbon is a hydrogen atom and a chemical group called the ‘R group’. </li></ul><ul><li>The amino acid type differs depending on the structure of the R group. </li></ul>
  5. 5. Peptide Bond
  6. 6. Peptide Bond <ul><li>When two amino acids join and go through a condensation reaction. </li></ul><ul><li>Water molecule removed as carboxyl-group carbon atom bonds to the amino-group nitrogen, of its neighbor. </li></ul><ul><li>Resulting covalent linkage is called a peptide bond. </li></ul>
  7. 7. Condensation Reactions <ul><li>A chemical reaction in which two molecules become covalently bonded to each other through the loss of a molecule, usually water. </li></ul><ul><li>When a bond forms between two monomers (amino acids), making a Dipeptide, each monomer contributes to the lost water molecule. </li></ul><ul><li>Cells must expend energy to carry out dehydration synthesis. </li></ul><ul><li>This process results in the formation of a Peptide bond, which can be joined with other bonds that will eventually contribute to the formation of a larger molecule (Polypeptide chain or Protein). </li></ul>
  8. 8. Polypeptides
  9. 9. Polypeptides <ul><li>Chain of amino acids </li></ul><ul><li>Range from a few to a thousand or more monomers </li></ul><ul><li>Each has a unique sequence of amino acids and has a unique 3-dimensional shape in a protein </li></ul><ul><li>Function of the protein depends on its ability to recognize and bind to its substrate </li></ul>
  10. 10. Function of Proteins <ul><li>*Functions of proteins can be interchangeable with functions of polypeptides </li></ul>Type of Protein Function Structural Proteins Support Storage Proteins Storage of Amino Acids Transport Proteins Transport of other substances Hormonal Proteins Coordination of an organism’s activities Receptor Proteins Response of cell to chemical stimuli Contractile Movement Defensive Proteins Protection against disease Enzymatic Proteins Selective acceleration of chemical reactions
  11. 11. Sources of Protein (food)
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