150 likes | 252 Views
The relative orientation observed for helices packed on ß sheets. The Complementary twist model for the helix to ß sheet packing. 6. 7. 2. 3. 1. 5. 4. 3. 4. 1. 2. Beta sheet structure. Beta sheets have “topologies” that bring together distant portions of the sequence.
E N D
The relative orientation observed for helices packed on ß sheets
The Complementary twist model for the helix to ß sheet packing
6 7 2 3 1 5 4 3 4 1 2 Beta sheet structure • Beta sheets have “topologies” that bring together distant portions of the sequence. Front: 1-2-5 Back: 7-6-3-4 Beta strands are numbered in sequence order. 2-1-4-3
What accounts for the high stability of HD-Crys? Hydrophobic domain cores Domain interface interactions
N-terminal Met43 Phe56 Ile81 C-terminal Leu145 Val132 Val170 Hydrophobic domain interface residues N-terminal domain C-terminal domain Conservation among 35 -crystallin sequences:
N-terminal Gln54 Arg79 C-terminal Gln143 Met147 Peripheral domain interface residues N-terminal domain C-terminal domain Conservation among 35 -crystallin sequences: