Structure-Function Relationship of Hydrophiliidae Postsynaptic Neurotoxins

Abstract

This annual report is comprised of three parts: The hydrophilicity index of Lapemis toxin from Lapemis hardwickii sea snake and the alpha-subunit of the acetylcholine receptor of Torpedo californica have been determined and plotted versus of the sequence position. Lapemis toxin is a competitive inhibitor of alpha-bungarotoxin (alpha-aBTX) in binding to ACR. Two artinine residues out of three which are present in Lapemis toxin were modified by phenylglyoxal. The major neurotoxin was isolated from the sea snake venom of Acalyptophis peronii captured in the Gulf of Thailand. Partial N-terminal sequence of the toxin was identified up to 37 residues. Ten more residues beyond residue No. 37 were also identified, but the exact positions of these ten residues have not yet been identified.

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Document Details

Document Type
Technical Report
Publication Date
Mar 05, 1987
Accession Number
ADA185198

Entities

People

  • Anthony T. Tu
  • Nobuhiro Mori
  • Roger A. Miller

Organizations

  • Colorado State University

Tags

Communities of Interest

  • Biomedical

DTIC Thesaurus Topics

  • Amino Acids
  • Anhydrides
  • Animal Structures
  • Biochemistry
  • Carbohydrates
  • Cell Membrane
  • Chemistry
  • Fish
  • Glutamic Acid
  • Hydrophilic Properties
  • Hydrophobic Properties
  • Membrane Lipids
  • Molecular Weight
  • Peptides
  • Polysaccharides
  • Raman Spectroscopy
  • Sequence Analysis

Fields of Study

  • Biology

Readers

  • Molecular and Cellular Biochemistry
  • Oceanography.