| Lecture |
Property |
PDB files |
| Protein Secondary Structures |
Secondary Structures |
alpha Helix
pi-helix
b-sheet: antiparallel
b-sheet: parallel
turns: type I
type II
type III |
Protein Tertiary Structures
|
Alpha proteins
|
lone helix: 1GCN
helix-turn-helix: 1ROP
4 helix bundles: 2MHR
1ROP_dimer
larger proteins: myoglobin
calmodulin: apo form 1CLL (no ligand)
holo form 1A29 (ligand)
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Beta proteins
|
Sandwich proteins: 1IFB
Greek key topology:
-plastocyanin: 1PLC
-gamma crystallin: 4GCR
Jelly roll topology:
- sattelite tobacco necrosis
virus : 2STV
Beta propeller: 1ERJ, 2BAT
Beta helix: Antifreeze protein 1EZG
Barrels: porin 2POR
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Alpha/Beta proteins
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Horseshoe protein: 2BNH
Alpha-beta barrel: 1TIM
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Alpha + Beta proteins
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Protein G: 1pgb
Pancreatic ribonuclease: 1FS3
papain: 9PAP
Lactate dehydrogenase: 9ldb |