Peptide compounds
First Claim
1. A peptide compound comprising at least 2 amino acid moieties joined together by peptide bonds, the compound comprising a lipophilic anchor which is connected to an amino acid moiety of the compound by a peptide bond and which comprises at least two amino acid moieties directly joined to one another by peptide bonds, each amino acid moiety being of the formula I ##STR4## wherein each R1 is independently a linear or branched chain alkyl or alkenyl group having 6-24 carbon atoms, the compound comprising also a matrix core section comprising n levels of dendritically linked trifunctional amino acid moieties, in which n is an integer of 2 or more, the or each trifunctional amino acid moieties comprising either two carboxylic acid groups or two amine groups and the matrix core having at least two terminal functionalities which are selected from --NH2, --COOH, --OH, --SH and derivatives thereof.
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Accused Products
Abstract
Synthetic peptides are widely used to generate antibodies. To induce high antibody response, it is known to conjugate the peptide to a carrier protein (e.g. KLH, BSA) or to incorporate it into polylysine to form a multiple antigenic peptide. Anchors may be built in which are based on fatty acids. According to the invention there is provided a novel lipidic amino acid based anchor system which can maximally enhance the antigenicity of a short synthetic peptide. These novel compounds are entirely peptide-based and may therefore be produced automatically by some step wise peptide synthesis, preferably solid phase step wise peptide synthesis. According to the invention there is also provided such a process.
117 Citations
16 Claims
- 1. A peptide compound comprising at least 2 amino acid moieties joined together by peptide bonds, the compound comprising a lipophilic anchor which is connected to an amino acid moiety of the compound by a peptide bond and which comprises at least two amino acid moieties directly joined to one another by peptide bonds, each amino acid moiety being of the formula I ##STR4## wherein each R1 is independently a linear or branched chain alkyl or alkenyl group having 6-24 carbon atoms, the compound comprising also a matrix core section comprising n levels of dendritically linked trifunctional amino acid moieties, in which n is an integer of 2 or more, the or each trifunctional amino acid moieties comprising either two carboxylic acid groups or two amine groups and the matrix core having at least two terminal functionalities which are selected from --NH2, --COOH, --OH, --SH and derivatives thereof.
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13. A process of producing a peptide compound comprising a lipophilic anchor which is connected to an amino acid moiety of the compound by a peptide bond and which comprises at least two amino acid moieties directly Joined to one another by peptide bonds, each amino acid moiety being of the formula I ##STR7## wherein each R1 is independently a linear or branched chain alkyl or alkenyl group having 6-24 carbon atoms, the compound comprising also a matrix core section comprising n levels of dendritically linked trifunctional amino acid moieties, in which n is an integer of 2 or more, the or each trifunctional amino acid moieties comprising either two carboxylic acid groups or two amine groups and the matrix core having at least two terminal functionalities which are selected from --NH2, --COOH, --OH, --SH and derivatives thereof,
said process comprising reacting of the amine or carboxylic acid equivalent of the lipophilic anchor with the carboxylic acid or amine equivalent, respectively, of said amino acid moiety of the compound to form said peptide bond.
Specification