egg lysin
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Function
Egg Lysin, a protein from abalone sperm, creates a hole in the envelope of the egg, permitting the sperm to pass through the envelope and fuse with the egg.
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Structural highlights
The structure of lysin, refined at 1.9 angstroms resolution, reveals an alpha-helical, amphipathic moleculeTo see alpha helixes press here. you can see the alpha helixes in pink. the surface of the protein exhibits three features: two tracks of basic residues that span the length of the molecule, a solvent-exposed cluster of aromatic and aliphatic amino acids,(in green) and an extended amino-terminal hypervariable domain that is species-specific. The structure suggests possible mechanisms of action.
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References
The crystal structure of lysin, a fertilization protein.
Shaw A1, McRee DE, Vacquier VD, Stout CD.
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