The L3HYPDH Knockout HEK293T Polyclonal Cells are a CRISPR/Cas9-edited polyclonal knockout population disrupting the L3HYPDH gene in human HEK293T cells. This polyclonal model provides a heterogeneous pool of cells with diverse loss-of-function mutations, enabling population-level functional studies without clonal selection bias. The cells are generated by CRISPR/Cas9-mediated gene disruption, offering a stable knockout tool for biochemical and metabolic analyses.
HEK293T cells are a human embryonic kidney cell line constitutively expressing the SV40 large T antigen, enabling episomal replication of plasmids with SV40 origin and enhancing transient protein expression and viral vector production. Their robust proliferation, high transfection efficiency, and active metabolic pathways render them an excellent host for metabolic studies. Paired with CRISPR disruption, this background permits rigorous functional analysis of L3HYPDH in a controlled environment.
L3HYPDH encodes a mitochondrial enzyme that dehydrates trans-3-hydroxy-L-proline to ??1-pyrroline-2-carboxylate, a key step in hydroxyproline catabolism from collagen turnover. The reaction links collagen degradation to proline and glutamate metabolism, and ultimately the TCA cycle. Upstream, enzyme activity is regulated by substrate availability; downstream, ??1-pyrroline-2-carboxylate enters proline and glutamate pools. Key pathway metabolites include trans-3-hydroxy-L-proline, ??1-pyrroline-2-carboxylate, proline, and glutamate, positioning L3HYPDH at a nexus of amino acid catabolism.
Knockout of L3HYPDH in HEK293T cells permits investigation of impaired hydroxyproline metabolism, leading to accumulation of trans-3-hydroxy-L-proline and potential metabolic rewiring. This model allows systematic study of how collagen-derived amino acid catabolism integrates with proline/glutamate homeostasis in a tractable cell system. The accumulation of substrate serves as a quantifiable phenotypic marker, measurable via LC-MS/MS, enabling robust functional assays. The HEK293T background, with its active metabolism and ease of manipulation, provides a reductionist platform for dissecting the enzyme??s role without systemic variables.
Applications encompass metabolomic profiling of hydroxyproline catabolism, enzyme activity assays, and gene expression analysis via RT-qPCR and western blotting. Quantitative LC-MS/MS enables direct measurement of substrate accumulation, while cell proliferation assays assess metabolic fitness. Furthermore, these cells can be used to investigate the impact of hydroxyproline accumulation on redox homeostasis and mitochondrial function. This polyclonal knockout model is particularly valuable for cancer metabolism research, fibrosis studies, and hydroxyproline-focused biomarker discovery. For further technical inquiries and ordering information, please contact Ascent Research.
