| genomic mutations of viral protein 1 and bk virus nephropathy in kidney transplant recipients. | genomic variability in the viral protein 1 region of bk polyomavirus (bkv) may change the ability of the virus to replicate. the significance of such changes was studied in clinical samples taken from kidney transplant patients with and without bkv nephropathy. a 94 base-pair fragment of viral protein 1 was amplified from 68 urine, 28 blood, and 12 renal biopsy samples from eight patients with bkv nephropathy, and from 100 urine samples, 17 blood and three renal biopsy samples from 41 of 218 con ... | 2009 | 19551827 |