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Anion-mediated lysine—arginine interaction evidence inChaetopterus variopedatussperm protamine

Authors
Journal
FEBS Letters
0014-5793
Publisher
Wiley Blackwell (John Wiley & Sons)
Publication Date
Volume
334
Issue
1
Identifiers
DOI: 10.1016/0014-5793(93)81696-w
Keywords
  • Ionic Interaction
  • Protein Structure
  • Protamine
  • Chaetopterus Variopedatus

Abstract

Abstract Chaetopterus ariopedatus sperm protamine is a stable oligomer. Specific amino acid side chain modifications show that the oligomeric structure depends on anion-mediated lysine—arginine interactions. The occurrence of this type of interaction is confirmed by the finding that Poly- l-arginine readily forms aggregates with Poly- l-lysine or with the native but not with the protamine with carbamylated ε-amino groups.

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