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1) What type of structure is a beta-hairpin an example of:
2) What is a "mosaic protein" ?
A protein structure with high
A protein which contains more than
A protein which gives a characteristic
A protein which contains many repeated
copies of one or more domains
3) What is the definition of protein quaternary structure?
The arrangement of protein
chains within an active multi-chain protein
The arrangement of domains within
a protein chain
The arrangement of motifs within
The arrangement of helices and
strands within a motif
4) Which of these statements, concerning the general principles of
protein folding and packing, is false?
Hydrophilic amino acids are
more often found on the surface of proteins than hydrophobic ones
Charged amino acids can be found
in the interior of proteins if they are involved in hydrogen bonds or "salt
The native folded conformation
of a protein is very much more stable than any other possible conformation
Unusual conformations in some proteins
are stabilised by disulphide bond formation
5) When alpha helices pack together, which angles between the helices
will allow the "ridges" of one helix to pack into the "grooves"
of another to form a stable structure?
50 and 10 degrees
50 and 20 degrees
70 and 20 degrees
0 and 90 degrees
6) What is the most common form of the beta turn?