We subsequently stained a total of 190 normal and brain tumour FFPE cores present on both commercially sourced tissue microarrays and from archived material obtained from the Histopathology Department at Sheffield’s Royal Hallamshire Hospital for ERK5 expression, and established a staining scoring protocol similar to one we have previously used for glioma samples [38] (Figure 4C). Here, MAPK7 is linked to glioma.