Figure 4
From: Heterogeneity of O6-alkylguanine DNA-alkyltransferase expression in human breast tumours
Photomicrographs of IHC staining for ATase in alcohol fixed breast tumours (× 200). Variation in IHC staining for ATase in four separate breast tumour sites from the same patient. (A) very high (4+); (B) medium (2+); (C) low (1+) and (D) no staining (−) intensity. In all cases the staining is mainly nuclear in distribution.
