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TOP1 Knockout HEK293 Cell Line
Cat.No.:
EDJ-KQ17844
Species:
Human
Cell Name:
HEK293
Gene:
TOP1
Gene ID:
7150
Size:
1×10⁶cells
TOP-1 Knockout Cell Line (HEK293) is an exclusive upgraded CRISPR/Cas9 system-mediated gene knockout cell, with the advantages of Optimized Strategy Design, Efficient Cell Transfection, High-Performance Cas9 Protein and Hassle-Free Cell Selection.
| Cat.No. | EDJ-KQ17844 |
|---|---|
| Product Name | TOP-1 Knockout Cell Line (HEK 293) |
| Cell Line | HEK293 |
| Cellosaurus ID | CVCL_0045 |
| Cell Line Synonyms | Hek293, HEK-293, HEK/293, (HEK)293, HEK 293, HEK,293, 293, 293 HEK, 293 Ad5, Graham 293, Graham-293, Human Embryonic Kidney 293 |
| Gene |
TOP1
|
| NCBI Gene ID | |
| Summary |
This gene encodes a DNA topoisomerase, an enzyme that controls and alters the topologic states of DNA during transcription. This enzyme catalyzes the transient breaking and rejoining of a single strand of DNA which allows the strands to pass through one another, thus altering the topology of DNA. This gene is localized to chromosome 20 and has pseudogenes which reside on chromosomes 1 and 22. [provided by RefSeq, Jul 2008]
|
| Morphology | Adherent |
| Passage Ratio | 1/5，2days |
| Complete Culture Medium | DMEM + 10% FBS |
| Freezing Medium | 95% Complete culture medium+ 5% DMSO |
| QC | Indels validated by Sanger sequencing; sterility confirmed via microbial testing. |
* For research use only. Not intended for use in humans or animals, including clinical, therapeutic, or diagnostic purposes.
| Loci | STR Info (Sample Cell) Sample Cell Line: HEK293 | STR Info (Cell bank) Cell Line: HEK293 | ||
| Allele1 | Allele2 | Allele1 | Allele2 | |
| Amelogenin | X | X | ||
| CSF1P0 | 12 | 11 | 12 | |
| D2S1338 | 19 | 19 | ||
| D3S1358 | 15 | 17 | 15 | 17 |
| D5S818 | 8 | 8 | 9 | |
| D7S820 | 11 | 12 | 11 | 12 |
| D8S1179 | 12 | 14 | 12 | 14 |
| D13S317 | 12 | 14 | 12 | 14 |
| D16S539 | 9 | 13 | 9 | 13 |
| D18S51 | 17 | 18 | 17 | 18 |
| D19S433 | 15 | 18 | 15 | 18 |
| D21S11 | 28 | 30.2 | 28 | 30.2 |
| FGA | 23 | 23 | ||
| Penta D | 9 | 10 | 9 | 10 |
| Penta E | 7 | 15 | 7 | 15 |
| TH01 | 7 | 9.3 | 7 | 9.3 |
| TPOX | 11 | 11 | ||
| vWA | 16 | 19 | 16 | 19 |
| D6S1043 | 11 | 11 | ||
| D12S391 | 19 | 21 | 11 | 15 |
| D2S441 | 11 | 15 | 11 | 15 |
* STR authentication data of this cell line matches with that of cell lines sourced from ATCC, DSMZ, JCRB, and RIKEN databases.
Conclusion: The STR identification of this cell is correct.
Conclusion: The STR identification of this cell is correct.
* Research Use Disclaimer: Content is generated from publicly available research data, bioinformatic resources, and computational analyses for research reference only.
Research Publications
Transcriptomic analysis of HEK293A cells with a CRISPR/Cas9-mediated TDP1 knockout.
IF=2.2
Biochimica et biophysica acta. General subjects
Tyrosyl-DNA phosphodiesterase 1 (TDP1) is a human DNA repair protein. It is a member of the phospholipase D family based on structural similarity. TDP1 is a key enzyme of the repair of stalled topoisomerase 1 (TOP1)-DNA complexes. Previously, with the CRISPR/Cas9 method, we obtained HEK293A cells with a homozygous knockout of the TDP1 gene and used the TDP1 knockout cells as a cellular model for studying mechanisms of action of an anticancer therapy. In the present work, we hypothesized that the TDP1 knockout would alter the expression of DNA repair-related genes. By transcriptomic analysis, we investigated for the first time the effect of the TDP1 gene knockout on genes' expression changes in the human HEK293A cell line. We obtained original data implying a role of TDP1 in other processes besides the repair of the DNA-TOP1 complex. Differentially expressed gene analysis revealed that TDP1 may participate in cell adhesion and communication, spermatogenesis, mitochondrial function, neurodegeneration, a cytokine response, and the MAPK signaling pathway.
This KO model may be useful for:
- Investigating the role of TOP1 in resolving DNA topological stress during transcription and replication.
- Studying DNA damage response pathways, particularly those involving topoisomerase I cleavage complexes (TOP1cc).
- Evaluating the efficacy and mechanisms of topoisomerase I-targeting chemotherapeutic agents (e.g., camptothecin derivatives).
- Exploring synthetic lethal interactions with DNA repair factors such as TDP1 in genome stability research.
- Functional genomics and transcriptomic analyses to map TOP1-dependent gene expression regulation.
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