Protein Structure Flashcards
1
Q
Define primary structure
A
Number and sequence of amino acids
2
Q
What are the bonds of the primary strucure?
A
Peptide bonds
3
Q
Name the types of secondary structures
A
- Alpha helix
- Beta pleated sheets
- Beta bends
4
Q
What are the bonds of an alpha helix?
A
- Hydrogen bonds
- Van der Waals forces
5
Q
What are the bonds of the beta pleated sheets?
A
Hydrogen bonds
6
Q
Define tertiary structure
A
- Spatial arrangement between secondary and supersecondary elements
- Folded for function
- Balled up
7
Q
What are the types of bonds in the tertiary structures?
A
- Disulfide bonds
- Hydrogen bonds
- Salt bridges
- Hydrophobic interactions
8
Q
What types of proteins have tertiary structures?
A
- Enzymes
- Hemoglobin
9
Q
Define quaternary structure
A
2+ peptide chains
10
Q
Name a dimeric protein
A
Cu-Zn Superoxide dismutase
11
Q
Name a trimeric protein
A
Tropocollagen
12
Q
What amino acids are in the trimeric protein?
A
- Glycine
- Lysine
- Proline
13
Q
What vitamin is needed to synthesize the amino acids in the trimeric protein
A
Vitamin C
14
Q
Name a tetrameric protein
A
Hemoglobin
15
Q
What mineral is needed for the tetrameric protein
A
Iron
