Abstract: The present invention relates to the identification of an epitope defined by residues of Toll-like Receptor (2). Targeting a binding compound, such as an antibody to the epitope results in antagonism of Toll-like Receptor (2). Further provided by the invention is the use of polypeptide comprising amino acid residues which form the epitope for use in screening for binding compounds which bind thereto, as well as to polypeptide compound which comprise the amino acid sequences of the epitope for use as vaccine compositions, when the generation of antagonistic antibodies which have binding specificity to Toll-like Receptor (2) are required, for example in the treatment of Toll-like Receptor (2) mediated disease conditions.