TFRC and B-cell chronic lymphocytic leukemia: Actin, Ribosomal protein large PO, Phosphoglycerate kinase, Hypoxanthine phoshoribosyl transferase and Transferrin receptor expression was analyzed with Taqman probes and the expression of actin was the most abundant in all the CLL (n = 3) and B cell specimens (n = 3) and was selected as the standard reference gene.