Title: HHMI meeting, FOLDING
1PROTEIN PHYSICS LECTURE 7
2Main secondary structures
3H-bonds
Helices Right and Left
4Mirror-asymmetric amino acids
mirror-asymmetric (chiral) helices Right
?-helix
5Right ?-helix
6Right ?-helix Right 310 helix
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8ALA, etc. GLY only
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10???, twisted
11???, twisted
12Mirror-asymmetric amino acids
mirror-asymmetric twist of ?-sheets
13?-hairpin with turn
14turn I
turn I
turn II
15?-bulge
16collagen triple helix
17Experimental study of secondary structure X-ray
crystallography
NMR spectroscopy (cross-peaks)
18Experimental study of secondary structure
Far UV CD spectra (peptide groups)
IR spectra (amid I, CO bond)
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20Membrane
Globular
Fibrous
H-bonds hydrophobics