proteins

• Proteins

  The building blocks of life
• Proteins

  • They are the organic materials that make up an organism
  • They are produced under the control of genes
  • They are the link between genes and the body they help to build
• Polypeptide chain

  One or more chains linked to form a protein
• Polypeptide chain is stored in a gene
• Proteins

  • They are folded in a complex globular shape
  • Amino acids are linked by peptide bonds, which form the polypeptide chain
  • Each protein has a unique structure, number and sequence of amino acids in the polypeptide chain
• Secondary structure

  • Polypeptide chains are coiled or folded
  • The secondary structure contributes to the protein's overall shape
• Tertiary structure

  • Irregular loops and folds - gives a 3 dimensional shape
• Quaternary structure

  • Contains two or more polypeptide chains