ALB and cancer: In the presence of 2 mg/mL of bovine serum albumin (BSA), which shares 80% sequence identity to HSA and can thus be viewed as nearly identical, almost all Au(I) complexes in Garcia et al.’s study exhibited anywhere from 10 to 100 times less cytotoxicity (as gauged by IC50 values) against the cancer and noncancer cell lines (Table 1) [104].