User:Eric Martz/5eon: Difference between revisions
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[[Cation-pi interactions]] involving Phe cannot form since Phe is buried and Lys is on the surface. A few cation-pi interactions may form between Trp on the surface and Lys. | [[Cation-pi interactions]] involving Phe cannot form since Phe is buried and Lys is on the surface. A few cation-pi interactions may form between Trp on the surface and Lys. | ||
==Sequence== | ==Salt Bridges Between Hexamers== | ||
The arrangement of rows of alternating negative and positive charge on the surfaces of the hexamers suggests that salt bridges might form between hexamers, stabilizing the protein crystal. In fact, there is | |||
only one salt bridge | |||
between each pair of hexamers, as shown in the crystallographic unit cell. | |||
==Sequence and Blocked Termini== | |||
The peptide sequence is constructed from 4 copies of heptad | The peptide sequence is constructed from 4 copies of heptad | ||