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Bio: Proteins

Bio Exam 1

proteins made of monomer amino acids and composed of C, H, O, and N and S atoms with one amino group (NH2) and one carboxyl group (CO2H
Amino acids (polar charged and positive/basic) contains amino groups NH's
Amino acids (polar charged and negative/acidic) contains carboxyls COO's
Amino acids (polar/uncharged) contains hydroxyls (OH's) or amide groups (NH2-C=O)
Amino acids nonpolar (hydrophobic) contains hydrocarbons (CH's)
Amino acids "special cases" random, unlike the other forms
peptide bonds links amino acids into proteins (polypeptide) between carboxyl group and amino group (DEHYDRATION- amino group from amino acid links to carboxyl end)
Primary Structure the specific sequence of amino acids in a polyptide
Secondary structure when amino acids in the primary sequence interact with one another and takes on a form (helix or coil) or folded sheet (bet-strands)
tertiary structure a polypeptide's unique 3D structure-- difsulfide bonds occur
quarternary structure 2 polypeptides or more must bond together to form the final functional protein
disulfide bonds covalent bonds between sidechains of two cysteine amino acids
what bonds make proteins? primarily non-covalent interactions between side chain atoms
Created by: user-1985217
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