Accession Number : ADA295830

Title :   Interacting Sites in Novel Polymeric Proteins.

Descriptive Note : Final rept. 1 Aug 91-31 Mar 95,

Corporate Author : MISSISSIPPI UNIV MEDICAL CENTER JACKSON

Personal Author(s) : Case, Steven T.

PDF Url : ADA295830

Report Date : 10 MAY 1995

Pagination or Media Count : 6

Abstract : Protein-protein and intraprotein interactions were studied in natural, recombinant and synthetic domains of proteins that form aquatic silk. Subsets of natural proteins were found to associate into discrete high molecular mass complexes thought to be the non-covalent precursors to insoluble silk. A recombinant protein mimicking a single core repeat" from a 1000-kDa silk protein reversibly formed two intramolecular disulfide bonds; however, more than one comformation existed. A synthetic peptide encompassing all four cysteines also formed intramolecular disulfide bonds. The results obtained suggested new steps in the fiber formation pathway including properties of the recombinant protein that may render it useful as a degradable biomolecular material.

Descriptors :   *POLYMERS, *PROTEINS, FIBERS, CORES, INTERACTIONS, WATER, PEPTIDES, SITES, SILK.

Subject Categories : Biochemistry
      Polymer Chemistry

Distribution Statement : APPROVED FOR PUBLIC RELEASE