Abstract: The present invention provides materials and methods that make liquid crystal phases accessible with relatively short ?-peptides in aqueous solvents.

Abstract: The invention provides methods and reagents for the metathesis of secondary amides via a transacylation mechanism employing catalytic quantities of an imide initiator and a Brønsted base. Equilibrium-controlled exchange between various amide reactant pairs is demonstrated for substrates bearing a variety of N-alkyl and N-aryl substituents.

Abstract: The present invention is directed to the design, synthesis and use of various ?-peptides exhibiting antifungal activity. The ?-peptides are relatively short in length, adopt globally amphiphilic conformations, and cause little lysis of human red blood cells at concentrations that kill Candida albicans, a common human fungal pathogen.

Abstract: Disclosed are cyclic imino oligomers and polymers comprised of subunits of the formula: Also disclosed are combinatorial libraries and arrays of the cyclic imino compounds.

Abstract: Disclosed is a method of manipulating the carboxamide functionality in a catalytic manner. The method includes the steps of reacting amides with or without amines in the presence of various types of metal catalysts, at a temperature of about 250° C. or less.

Abstract: Disclosed are polypeptide compounds containing at least one residue comprising a cyclically-constrained ?-amino acid residue. The compounds have the formula where A is a hydrogen, hydroxy, amino- or carboxy-protecting group, Y is a single bond or a prolyl-containing linking group, and X and Y are ?-amino acid residues, provided that one of X or Y is a conformationally-restrained ?-amino acid residue, and “a,” “c,” and “d” are positive integers. The compounds find use as non-enzymatically degradable probes to mimic protein behavior in solution.

Abstract: Disclosed are ?-peptides and ?-peptide conjugates that are capable of diffusing or otherwise being transported across the cell membranes of living cells. The ?-peptides contain at least six ?-amino acid residues, at leastsix of which are preferably ?3-homoarginine residues. It has been found that when pharmacologically-active agents are conjugated to these types of ?-peptides, the resulting conjugates (also disclosed herein) are also capable of diffusing or otherwise being transported across the cell membranes of living cells, including mammalian cells.

Abstract: Disclosed is a method of manipulating the carboxamide functionality in a catalytic manner. The method includes the steps of reacting amides with or without amines in the presence of various types of metal catalysts, at a temperature of about 250° C. or less.

Abstract: Disclosed are cyclic imino oligomers and polymers comprised of subunits of the formula: 1

Abstract: Disclosed are isolated, unnatural polypeptides containing cyclically-constrained &bgr;-amino acid residues and cyclically-constrained &ggr;-amino acid residues. The compounds are unnatural and because they contain rotationally constrained residues that are not amenable to enzymatic degradation, the compounds are useful to probe protein-protein and other large molecule interactions.

Abstract: Disclosed are cyclic imino oligomers and polymers comprised of subunits of the formula: Also disclosed are combinatorial libraries and arrays of the cyclic imino compounds.

Abstract: Disclosed are cyclic imino oligomers and polymers comprised of subunits of the formula: Also disclosed are combinatorial libraries and arrays of the cyclic imino compounds.

Abstract: Disclosed are polypeptide compounds containing at least one residue comprising a cyclically-constrained &ggr;-amino acid residue.

Abstract: Disclosed are &bgr;-peptides containing cylcoalkyl, cycloalkenyl, and heterocylic substituents which encompass the &agr; and &bgr; carbons of the peptide backbone. The &bgr;-peptides adopt stable helical and sheet structures in both the solid state and in solution. Method of generating combinatorial libraries of peptides containing &bgr;-peptide residues and the libraries formed thereby are disclosed.

Abstract: Disclosed are &bgr;-peptides and &bgr;-peptide conjugates that are capable of diffusing or otherwise being transported across the cell membranes of living cells. The &bgr;-peptides contain at least six &bgr;-amino acid residues, at leastsix of which are preferably &bgr;3-homoarginine residues. It has been found that when pharmacologically-active agents are conjugated to these types of &bgr;-peptides, the resulting conjugates (also disclosed herein) are also capable of diffusing or otherwise being transported across the cell membranes of living cells, including mammalian cells.

Abstract: Disclosed are &bgr;-amino acid monomers containing cylcoalkyl, cycloalkenyl, and heterocylic substituents which encompass the &agr; and &bgr; carbons of the peptide backbone and &bgr;-polypeptides made from such monomers. Method of generating combinatorial libraries of polypeptides containing the &bgr;-peptide residues and libraries formed thereby are disclosed.

Abstract: Disclosed are cyclic imino oligomers and polymers comprised of subunits of the formula: 1

Abstract: Disclosed are amphiphilic compounds comprising Formula I: wherein R1, R2, and R3 are C2-C12 straight or branched alkyl; unsubstituted phenyl, biphenyl, C3-C8 cycloalkyl, or C3-C8 cycloalkenyl; or phenyl, biphenyl, C3-C8 cycloalkyl, or C3-C8 cycloalkenyl substituted with one, two, or three C1-C6 straight or branched alkyl groups; or R1 and R2 combined are C3-C8 cycloalkyl, C3-C8 cycloalkenyl; or C3-C8 cycloalkyl or C3-C8 cycloalkenyl substituted with one, two, or three C1-C6 straight or branched alkyl groups; one of R4 or R5 is selected from the group consisting of C2-C6-straight or branched alkyl-(dimethyl-N-oxide), alkyl-(dimethylamine), alkyl-(trimethylammonium), alkyl-glucosyl, alkyl-maltosyl, glucosyl, maltosyl, and polyethylene(glycosyl); the other of R4 or R5 is selected from the group consisting of H, C2-C6 straight or branched alkyl or alkenyl, C2-C6-straight or branched alkyl-(dimethyl-N-oxide); alkyl-(dimethylamine), alkyl-(trimethylammonium), alkyl-glucosyl, alkyl-maltosyl, glucos

Abstract: Disclosed are .beta.-peptides containing cylcoalkyl, cycloalkenyl, and heterocylic substituents which encompass the .alpha. and .beta. carbons of the peptide backbone. The .beta.-peptides adopt stable helical and sheet structures in both the solid state and in solution. Method of generating combinatorial libraries of peptides containing .beta.-peptide residues and the libraries formed thereby are disclosed.

Abstract: A method for refolding an enzyme from a misfolded configuration to a second native and active configuration is presented. The method comprises adding a linear alkyl detergent to a misfolded enzyme to form an enzyme-detergent complex. Then the enzyme-detergent complex is contacted with a cyclodextrin to allow the enzyme to assume a second active configuration. The misfolded enzyme may have been previously denatured by heat or by chemical means other than a detergent.