Proteins Flashcards
globular protein?
compact,water soluble, spherical.
form when proteins fold into territory structure in a way that hydrophobic r groups on the amino acid are kept away from aquatic environment.r group on the outside, proteins are soluble in water.
peptides?
peptides are polymers made up of amino acids, proteins consist of one or more polypeptides arranged as a complex macro molecule
amino acids?
different r groups result in different amino acids, twenty different amino acids,
synthesis of peptides?
amino acids join when the amine and carboxylic group connect to central carbon atoms react. the hydroxylgroup in the carboxylic acid group of one amino acid reacts with hydrogen in the amine group of another amino acid forming a peptide bond
primary structure?
where amino acids are joined, paticular amino acids dictate the shape. only bonds are peptide bonds
secondary structure?
oxygen, hydrogen and nitrogen atoms of amino acids interact, hydrogen bonds form creating a coil shape called alpha helix
beta pleated sheet?
polypeptide chains can lie parallel to one another joined by hydrogen bonds forming a sheet like structure. called a beta pleated sheet.
tertiary structure?
folding of protein into its final shape. includes section of secondary structure. coiling or folding of sections of proteins into secondary structure brings r groups of differnet amino acids closer together so they are close enough to interact
interactions between r groups?
hydrophobic and hydrophillic - weak interactions between polar and non r groups hydrogen bonds ionic bonds - between oppositly charged r groups disulfide bonds - covelent bonds betweten r groups that contain sulfur atoms
breakdowm of peptidez?
hydrolysis
conjugated proteins?
globular proteins that contain non protein component called a prosthetic groups
