Immunohistochemistry Analysis: Representative lot data. Paraffin-embedded inflammatory skin disorder (Fig 1) and normal human kidney-glomerulus (Fig. 2) tissue was prepared using heat-induced epitope retrieval in citrate buffer, pH 6.0. Immunostaining was performed using a 1:300 dilution of Anti-FOXP1. Reactivity was detected using the IHC-Select Detection Kit. Staining pattern appears in the nucleus.