2017
DOI: 10.1096/fj.201601245r
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Fludarabine resistance mediated by aminoglycoside‐3'phosphotransferase‐IIa and the structurally related eukaryotic cAMP‐dependent protein kinase

Abstract: While working with G418-resistant stably transfected cells, we realized the neomycin resistance (NeoR) gene, which encodes the aminoglycoside-3'-phosphotransferase-IIa [APH(3')-IIa], also confers resistance to the nucleoside analog fludarabine. Fludarabine is a cytostatic drug widely used in the treatment of hematologic and solid tumors, as well as in the conditioning of patients before transplantation of hematopoietic progenitors. We present evidence that NeoR-transfected cells do not incorporate fludarabine,… Show more

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“…A subject of the present study, APHIJ3′)-IIa, encoded by the neomycin resistance (neo R ) gene aphIJ3′)-IIa, has been used as an AG resistance marker in molecular biology for decades, providing robust selection in AG-containing media. [17][18][19] A key issue to considering AGs as therapies or genetic selection tools is their modification by APHs. Therefore, a systematic investigation of the substrate-cosubstrate profile of APH enzymes is necessary.…”
Section: Introductionmentioning
confidence: 99%
“…A subject of the present study, APHIJ3′)-IIa, encoded by the neomycin resistance (neo R ) gene aphIJ3′)-IIa, has been used as an AG resistance marker in molecular biology for decades, providing robust selection in AG-containing media. [17][18][19] A key issue to considering AGs as therapies or genetic selection tools is their modification by APHs. Therefore, a systematic investigation of the substrate-cosubstrate profile of APH enzymes is necessary.…”
Section: Introductionmentioning
confidence: 99%