DTD1 Knockout HeLa Polyclonal Cells provide a CRISPR/Cas9-edited polyclonal knockout cell population targeting the DTD1 gene in the HeLa human cell line. This product offers a mixed population of cells with disruption of DTD1, enabling loss-of-function studies without clonal isolation. The polyclonal format preserves cellular heterogeneity while eliminating functional DTD1 protein, making it a practical tool for investigating translational fidelity and D-amino acid metabolism. Researchers can utilize this model to explore the consequences of impaired D-aminoacyl-tRNA hydrolysis in a well-characterized epithelial background.
HeLa cells are an immortalized cell line derived from a cervical adenocarcinoma, retaining epithelial characteristics and harboring human papillomavirus type 18 (HPV-18) sequences. They are extensively used in cancer research, virology, and cell biology due to their robust growth, genetic tractability, and well-documented behavior. As a model for cervical adenocarcinoma, HeLa cells offer a relevant platform to examine the interplay between translational control and oncogenic processes, particularly in the context of HPV-driven transformation.
DTD1 encodes D-aminoacyl-tRNA deacylase 1, an enzyme that hydrolyzes D-aminoacyl-tRNA esters, thereby preventing the misincorporation of D-amino acids into nascent polypeptide chains. This proofreading activity is essential for maintaining translational fidelity and proteome integrity. DTD1 functions within the tRNA aminoacylation pathway, interacting directly with D-aminoacyl-tRNA substrates, the ribosome, and aminoacyl-tRNA synthetases. It is closely associated with elongation factors eEF1A and eEF2 during protein synthesis, and its activity ensures that only L-amino acids are incorporated, safeguarding cellular protein homeostasis. The enzyme??s regulation is not fully defined but likely responds to general translational control mechanisms.
In the HeLa adenocarcinoma background, disruption of DTD1 provides a unique model to investigate how loss of translational quality control impacts cancer cell physiology. HeLa cells experience high translational demand due to their rapid proliferation, making them particularly sensitive to errors in protein synthesis. By abolishing DTD1 function, researchers can examine the accumulation of D-amino acid?Ccontaining proteins, proteotoxic stress responses, and potential vulnerabilities that could be exploited therapeutically. This model may help elucidate links between proteostasis stress and cancer cell survival, even though no direct disease association has been established for DTD1.
This knockout cell population is well-suited for a range of experimental approaches. Western blotting and RT-qPCR can confirm DTD1 depletion, while D-amino acid incorporation assays and SUnSET puromycin incorporation assays directly measure translational fidelity and global protein synthesis rates. Polysome profiling enables analysis of ribosomal occupancy and translation dynamics, and cell viability assays under D-amino acid stress assess functional consequences of DTD1 loss. Applications include translational fidelity studies, D-amino acid metabolism research, cancer cell biology, and proteostasis investigations. For additional technical details or custom requests, please contact Ascent Research.
