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  • 1
    ISSN: 0887-3585
    Keywords: template-assembled synthetic protein (TASP) ; 4-helix bundle ; β-barrel structure ; protein de novo design ; peptide synthesis ; peptide conformation ; orthogonal protection ; Chemistry ; Biochemistry and Biotechnology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Notes: The construction of a template-assembled synthetic protein (TASP) designed to contain both a 4-helix bundle and a β-barrel as two folding “domains” is described. For the de novo design of proteins, amphiphilic helices (α) and β-sheets (β) are covalently attached to a template peptide (T) carrying functional side chains suitably oriented to promote intarmolecular folding of the secondary structure blocks into a characteristic packing arrangement, i.e., T8-(4α)(4β). The design of this new macromolecule was assisted by computer modeling, which suggested a low-energy conformation with tight hydrophobic packing of the secondary structure subunits. Solid-phase synthesis of the “two-domain” TASP molecule was achieved using orthogonal protection techniques. The solution properties as well as circular dichroism (CD) and infrared spectroscopy (IR) data under various experimental conditions are consistent with the folded conformation suggested by modeling.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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