AIM Rule 26 & Adviser Name

Proteome Sciences Plc ("Proteome Sciences" or "the Company") 17 August 2007 AIM Rule 26 Compliant Website and Change of Adviser Name Proteome Sciences plc ("Proteome Sciences") today announces that the information required by Rule 26 of the AIM Rules for Companies (February 2007) is available within the "Rule 26" section of the Company's website at www.proteomics.com The Company today also announces that with effect from 9 August 2007, the name of the Company's nominated adviser and broker has changed to Landsbanki Securities (UK) Limited. Ends Notes to editors: Proteome Sciences plc applies high sensitivity proteomics to identify and characterise differential protein expression in diseases for diagnostic, prognostic and therapeutic applications. It has discovered blood biomarkers principally for stroke, vCJD, BSE, brain damage, solid organ transplant rejection and Alzheimer's disease. The main focus of its research currently addresses neurological, neurodegenerative, oncology and cardiovascular conditions. In addition to its own proprietary biomarkers, Proteome Sciences has developed ProteoSHOP® (Proteome Sciences High Output Proteomics), a toolbox that offers high sensitivity and high throughput gel and gel-free proprietary technologies for the identification and validation of potential biomarkers and drug targets, including specialisation in membrane proteins and protein phosphorylation. The Company has developed a range of specialist reagents to improve the performance and quantitation of protein separation and characterisation with mass spectrometry, bioinformatics, statistics and pattern recognition. These include Sensitizer®, PST®, qPST™ and TMT®. Proteome Sciences has patent allowances in the major global jurisdictions for isobaric tandem mass tags (TMT ®) for the manufacture and use of any type of isobaric mass tags. Commercialisation is actively pursued across the portfolio of the Company's programmes and technologies with licensing deals signed in biomarkers for Stroke and TSEs and for ProteoSHOP®. Proteome Sciences has its headquarters in Cobham, Surrey in the UK and has laboratories at Kings College Hospital, London and Frankfurt Innovations Zentrum (FIZ), Frankfurt. It employs 32 full time scientists in addition to its corporate and business development staff, and has collaborative research agreements with leading academic institutes. The Company is listed on the Alternative Investment Market. For further information please visit www.proteomics.com. Proteome Sciences plc James Malthouse, Finance Director Email: james.malthouse@proteomics.com Christopher Pearce, Chief Executive Officer Email: christopher.pearce@proteomics.com Tel: +44 (0)1932 865065 Public Relations IKON Associates Coast Communications Adrian Shaw Matt Baldwin Tel: +44 (0)1483 535102 Tel: +44 (0)1233 503200 Mobile: +44 (0)797 9900733 Mobile: +44 (0)7930 439739 Email: adrian@ikonassociates.com Email: matt@coastcommunications.com Nominated Adviser Landsbanki Securities (UK) Limited Thilo Hoffman Tel: +44 (0)20 7426 9000
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