Figure 2
From: Heterogeneity of O6-alkylguanine DNA-alkyltransferase expression in human breast tumours
Photomicrographs of IHC staining for ATase in alcohol fixed breast tumours (× 200). (A1) pre-immune serum control (−); (B1) low (1+); (C1) medium (2+) and (D1) high (3+) staining. A2-D2 show cells negative for ATase stained with propidium iodide (red fluorescence).
