proteins

• are polymers made up of a chain of the basic building blocks called amino acids

  Proteins
• Amino Acid - A molecule that contains an amine group (-NH2) bonded to a carboxyl group (COOH). The general formula is NH2CHRCOOH.
• Structural- keratin, tubulin, collagen
• lipase, amylase, cellulase, lactase (usually end in –ase)

  . Enzymatic –
• carrier, channel, aquaporin, sodiumpotassium pumps, etc

  Transport
• antigens like immunoglobulins

  Defensive
• hormones (insulin, prolactin, etc)

  Regulatory or Signal Proteins
• actin and myosin

  Contractile
• ferritin and ovalbumin

  ferritin and ovalbumin
• Sequence of a chain of amino acids

  Primary Protein Structure
• Local folding of the polypeptide chain into helices or sheets

  Secondary Protein Structure
• Three-dimensional folding pattern of a protein to side chain interactions

  Tertiary Protein Structure
• Protein consisting of more than one amino acid chaiin

  Quaternary Protein Structure