PDXK Knockout Cell Line (Hela)

The choice depends on whether you are studying PDXK (pyridoxal kinase)'s role in vitamin B6 metabolism or its emerging functions in cancer biology and chemotherapy response. The Knockout line is the standard tool for asking whether PDXK is required for converting pyridoxal, pyridoxine, and pyridoxamine to their 5'-phosphate forms — PDXK generates pyridoxal 5'-phosphate (PLP), the active vitamin B6 coenzyme essential for >150 enzymatic reactions. Overexpression is useful for studying PDXK's role in nucleoside analog drug activation. For vitamin B6 biology and cancer research, the EDITGENE PDXK Knockout in HeLa enables study of PLP-dependent metabolism. PDXK has been characterized as activating nucleoside analog drugs (3'-azido-3'-deoxythymidine/AZT and others). Rescue with wild-type or kinase-dead PDXK is the standard specificity control. The knockout is valuable for studying PLP-dependent enzyme dependencies and B6-related neurological pathology.

Primary applications: • Pyridoxal 5'-phosphate (PLP) generation: cellular PLP quantification by LC-MS or PLP-dependent enzyme activity assays to characterize PDXK activity. • B6-dependent enzyme functions: cystathionine β-synthase (CBS), GAD, AADC, and other PLP-dependent enzyme activity analysis. • Nucleoside analog activation: AZT and related nucleoside analog activation studies given PDXK's role in nucleoside metabolism. • B6 supplementation studies: cellular rescue of PDXK-null phenotypes by exogenous PLP versus pyridoxal supplementation. EDITGENE recommends this model for researchers investigating vitamin B6 metabolism, PLP-dependent enzymes, and nucleoside analog drug activation.

Yes. PDXK rescue experiments require attention to kinase architecture: • Construct design: use a codon-modified PDXK sequence with a small C-terminal tag (FLAG, HA). PDXK is a homodimeric kinase — preserve dimerization interface. • Kinase-dead rescue: active site mutations affecting ATP binding abolish catalytic activity and serve as the standard specificity control. • Functional readout: rescue should restore cellular PLP generation measured by LC-MS and downstream PLP-dependent enzyme activity. HeLa transduces efficiently with lentivirus and supports stable rescue line generation.