Abstract: Specific binding molecules, including T cell receptors (TCRs), which bind the HLA-A*02 restricted peptide SLYNTVATL (SEQ ID NO: 1) derived from the HIV Gag gene product, p17 are presented. TCRs of the present invention comprise non-natural mutations within the alpha and/or beta variable domains relative to a native TCR. The specific binding molecules of the invention have improved stability and/or yield and yet unexpectedly retain the advantageous properties of the specific binding molecules from which they are derived. Such specific binding molecules are particularly useful in the development of soluble immunotherapeutic reagents for the treatment of HIV infected individuals.

Abstract: Methods for diagnosing the status of periodontitis disease includes selecting a set of protein biomarkers including one or more biomarkers which have been shown to vary in abundance at particular stages of periodontitis. The set of protein biomarkers may be identified and quantified in expression in an acquired gingival crevicular fluid (GCF) or saliva oral fluid sample in order to distinguish between different states of periodontitis. Methods of diagnosing the status of periodontitis oral disease at varying levels of severity, e.g. gingivitis, mild periodontitis, or severe periodontitis, may include selecting a set of protein biomarkers which are capable distinguishing between different stages of periodontitis.