Directorate Change

Proteome Sciences PLC
15 May 2003

                                  APPOINTMENT



On 13th May Proteome Sciences plc (Proteome Sciences), the AIM listed proteomics
and modification of gene expression company, announced that , Dr. Sandra
Steiner, who was formerly Executive Vice President of Proteomics at Large Scale
Biology Corporation, Germantown, US, had been appointed to the Board as R&D
Director.

Dr Steiner, full name Sandra Cornelia Steiner Muller, is aged 44. There is no
other information required to be disclosed under the disclosure requirements of
the Schedule Two (f) of the AIM rules.



                                      ENDS


For further information please contact:



Proteome Sciences plc                    Tel: [phone]

Christopher Pearce, Chief Executive


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