Sheffield Protein Reference Unit and Immunology Department has a long established expertise in the analysis and clinical interpretation of protein and antibody assays.

Our extensive test repertoire includes tumour markers, prenatal Downs screening, specific proteins, auto-antibodies, allergy testing and immunodeficiency investigation. We are continually adding new tests to our repertoire.

The Protein Reference Units (PRU) are part of the Supra-Regional Assay Service.