Protein Structure And Function 1

Question 1

Secondary structures

Answer 1

Arrangement of amino acids close to each other in defined structures

Question 2

Tertiary structure

Answer 2

Folding of proteins into domains and overall structure

Question 3

Primary structure details

Answer 3

Peptide bonds; Covalent bonds; Disulphide bonds
Residues;
Genetically determined;
Determines the 3D shape of protein;
Condensation reaction; endergonic;
Trans arrangement favoured;
Polypeptide backbone flexible

Question 4

Secondary structure

Answer 4

Non-covalent interactions;
H bonds;
Local or bring distant regions closer together;

Question 5

Beta turn

Answer 5

Regular structure;
4-7 amino acids;
Connects 2 secondary structures

Question 6

Loops/Random coil/disordered

Answer 6

No regular conformation, pattern of hydrogen bonding

Question 7

Super secondary structures

Answer 7

Motifs

Question 8

Tertiary structure details

Answer 8

Inextricably linked to function;
Stable, active conformation of protein;
Hydrophobic effect;
Van Der Waal’s forces;
Salt bridges