Abstract: The invention mainly concerns methods and systems for the preparation of biological samples for proteome analysis, N-terminal or C-terminal peptides of proteins are enriched using exopeptidase.

Abstract: The present invention is a method for measuring the amount of at least one molecule in a biological sample, the method comprising a) combining the sample, or a derivative thereof, with one or more aptamers and allowing one or more molecules in the sample to bind to the aptamer(s); b) separating bound from unbound molecules; and c) quantifying the molecule(s) bound to the or each aptamer, wherein quantification of the bound molecule(s) is carried out by sequencing at least part of the or each aptamer. Uses of and products derived from the method are also contemplated.

Abstract: The present invention provides kits and methods for the diagnosis, prognosis and prediction of sepsis in a subject or for the differentiation between sepsis and SIRS in a subject, the method comprising(a) measuring the level of pro-hepcidin (pro-HEPC) in a biological sample taken from said subject, (b) measuring the level of at least one further biomarker selected from the group consisting of soluble TNF-receptor 2 (sTNFR2), Pentraxin-3 (PTX-3), Macrophage Colony-Stimulating Factor (MCSF), pro-Brain Natriuretic Protein (pro-BNP), one or more members of the Histone protein family, Procalcitonin (PCT) and c-Reactive Protein (CRP) in a biological sample from said subject, (c) using said measurements obtained in steps (a) and (b) to create a profile for said biomarkers and (d) comparing said profile with a reference biomarker profile obtained form a patient having SIRS or from a healthy subject.

Abstract: The invention relates to the identification of a naturally occurring internal proteolytic cleavage site in the ApoA1 protein, which leads to inactivation of the mature protein. Specific modification of this cleavage site leads to a stabilised ApoA1 protein, which is beneficial for the reverse cholesterol transport. The invention therefore encompasses pharmaceutical compositions comprising a recombinant stabilised variant ApoA1 protein or rHDL particles comprising such a protein, for use in the treatment of patients having reduced HDL or hampered reverse cholesterol transport.

Abstract: The present invention provides a novel method for stabilizing proteins, by first identifying the proteolytic sites using N- or C-terminal technology, followed by modification of said sites in order to create stabilized proteins, no longer subject to proteolytic cleavage. the method of the invention immediately provides the user with the exact amino acid position of the proteolytic cleavage site in the protein(s) of interest, even in a complex protein sample. This makes the specific modification of such a site much easier and increases the expectation of success as compared to the amount of effort needed, even in a complex protein sample.

Abstract: The invention provides reagents and methods for the accurate quantification of proteins in complex biological samples. Quantification is obtained by adding to a sample a peptide combo, which is essentially a collection of synthetic reference peptides. The synthetic reference peptides have a small mass difference when compared to the biological reference peptides that originate upon digestion from the proteins present in the sample. Reference peptides and synthetic reference peptides are selected and the identity and accurate amounts of reference peptides are determined by mass spectrometry. The methods can be used in high throughput assays to interrogate proteomes.