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Updated: Aug 16, 2026

Measurement of BK-polyomavirus Non-Coding Control Region Driven Transcriptional Activity Via Flow Cytometry
Published on: July 13, 2019
LT, VP1 and TCR-BKV sequence analysis in a patient with post-transplant BKV nephropathy associated with EBV-related
Luis Rubio1, Francisco J Vera-Sempere, María J Moreno-Baylach
1Department of Pathology, Laboratory of Molecular Pathology, University Hospital La Fe, Medical School of Valencia University, Avda. Campanar 21, 46009 Valencia, Spain.
Abstract:
A 10-year-old boy kidney transplant recipient (KTR) developed an abdominal post-transplant lymphoproliferative syndrome (PTLD) followed by BK virus nephropathy (BKVN). BK virus (BKV) and Epstein-Barr virus (EBV) were studied in renal and PTLD tissue by polymerase chain reaction (PCR) assay. Afterwards, the patient was monitored in relation to BKV in urine and serum; transcription control region (TCR)-BK polymorphism sequence analysis was also performed. In the PCR assay, both early large T antigen (LT) and late (VP1) transcriptional BKV coding regions were found in renal tissue, whereas EBV and only LT-BK were detected in PTLD abdominal tissue. On the other hand, TCR sequence analysis revealed the AS genomic BK variant.
