Figure 1From: Properties of cellular and serum forms of thymidine kinase 1 (TK1) in dogs with acute lymphocytic leukemia (ALL) and canine mammary tumors (CMTs): implications for TK1 as a proliferation biomarkerStandard curve for recombinant TK1 protein using the immune affinity assay and Western blot analysis. (A) Concentration curve obtained after scanning the relative band intensities (arbitrary units (AUs)). (B) The 28 kDa polypeptide bands of recombinant dog thymidine kinase 1 (TK1) (0.5–4 ng).Back to article page