Protien Structure Flashcards
What defines a primary protein?
It’s a series of amino acids (Words only)
What defines a secondary protein?
It is the arrangement of amino acids (shapes)
What defines a tertiary protein?
It showcases 3-dimensional folding
What defines a quaternary protein?
It combines multiple polypeptides into a protein
What type of bonding can be found in primary proteins?
Covalent bonds (Peptide and Disulfide bonds)
What type of bonding can be found in secondary proteins?
Hydrogen bonds
What type of bonding can be found in Tertiary proteins?
Hydrogen bonds
Disulfide bonds
Salt bridges
What are the two most common types of secondary proteins?
Alpha helixes and beta pleated sheets
What are the keynotes of alpha helixes?
They are spiral configurations of polypeptides bonded together by hydrogen bonds between coils
Showcases intramolecular bonding
Prefers Ala, Glu, Leu, Met
What are the keynotes of beta pleated sheets?
They are two adjacent polypeptide sheets connected by hydrogen bonds
They can be parallel or antiparallel (Anti is stronger and more stable)
Showcases intermolecular bonding
Cannot exist as a single chain
Which amino acids don’t work well in Alpha helixes and are usually placed on turns for beta-pleated sheets?
Proline (weird shape)
Glycine (too small)
