Eif2ak2 Knockout MLE-12 Cell Line
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Product ID： LM02196024079
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隐藏域元素占位
- 产品描述
- 细胞复苏
- 细胞传代
- 细胞冻存
- 抗体验证结果
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- Commodity name: Eif2ak2 Knockout MLE-12 Cell Line
- Commodity ID: LM02196024079
- Gene Symbol: Eif2ak2, Pkr, Prkr, Tik
- Ensembl ID: ENSMUSG00000024079
- Uniprot ID: Q03963
- 宿主细胞 / 类型: MLE-12/mouse lung epithelial cells
- NCBI Gene ID: 19106
- 规格: 1×10^6 cells/frozen vial
- 生长培养基: DMEM/F12+2%FBS+0.5%ITS-G+10nM Hydrocortisone+10nM β-estradiol
- 筛选标记: N/A
- 生长特性: Adherent cells, epithelial-like
- 培养条件: Incubator at 37°C, 5% CO2, passage at 1/2 to 1/4 confluency
- 倍增时间: ~24-48 hours
- 参考换液频率: 2-3 times/week
- 支原体检测结果: Negative
- 敲除效率（Sanger测序）: 100%
- 蛋白质组验证结果: Protein-level validation has been completed.
- 抗体货号: Adding...
- 目标基因介绍: IFN-induced dsRNA-dependent serine/threonine-protein kinase that phosphorylates the alpha subunit of eukaryotic translation initiation factor 2 (EIF2S1/eIF-2-alpha) and plays a key role in the innate immune response to viral infection (PubMed:20038207, PubMed:20478537, PubMed:21123651). Inhibits viral replication via the integrated stress response (ISR): EIF2S1/eIF-2-alpha phosphorylation in response to viral infection converts EIF2S1/eIF-2-alpha in a global protein synthesis inhibitor, resulting to a shutdown of cellular and viral protein synthesis, while concomitantly initiating the preferential translation of ISR-specific mRNAs, such as the transcriptional activator ATF4 (PubMed:20631127, PubMed:21123651). Exerts its antiviral activity on a wide range of DNA and RNA viruses including west nile virus (WNV), sindbis virus (SV), foot-and-mouth virus (FMDV), semliki Forest virus (SFV) and lymphocytic choriomeningitis virus (LCMV) (PubMed:19264662, PubMed:20585572, PubMed:20631127, PubMed:21994357). Also involved in the regulation of signal transduction, apoptosis, cell proliferation and differentiation: phosphorylates other substrates including p53/TP53, PPP2R5A, DHX9, ILF3, and IRS1 (PubMed:19229320, PubMed:23403623). In addition to serine/threonine-protein kinase activity, also has tyrosine-protein kinase activity and phosphorylates CDK1 at 'Tyr-4' upon DNA damage, facilitating its ubiquitination and proteasomal degradation (By similarity). Either as an adapter protein and/or via its kinase activity, can regulate various signaling pathways (p38 MAP kinase, NF-kappa-B and insulin signaling pathways) and transcription factors (JUN, STAT1, STAT3, IRF1, ATF3) involved in the expression of genes encoding pro-inflammatory cytokines and IFNs (PubMed:22948222, PubMed:23392680). Activates the NF-kappa-B pathway via interaction with IKBKB and TRAF family of proteins and activates the p38 MAP kinase pathway via interaction with MAP2K6 (By similarity). Can act as both a positive and negative regulator of the insulin signaling pathway (ISP) (By similarity). Negatively regulates ISP by inducing the inhibitory phosphorylation of insulin receptor substrate 1 (IRS1) at 'Ser-312' and positively regulates ISP via phosphorylation of PPP2R5A which activates FOXO1, which in turn up-regulates the expression of insulin receptor substrate 2 (IRS2) (By similarity). Can regulate NLRP3 inflammasome assembly and the activation of NLRP3, NLRP1, AIM2 and NLRC4 inflammasomes (PubMed:22801494, PubMed:23401008). Plays a role in the regulation of the cytoskeleton by binding to gelsolin (GSN), sequestering the protein in an inactive conformation away from actin (PubMed:22633459).
- 细胞开发路径: A stable KO cell line was generated using the CRISPR-RNP method; Sanger sequencing confirmed 100% knockout efficiency in the KO cell line.
- 应用: Gene knockout cell lines (KO Cell Lines) with high knockout efficiency are particularly well suited for preliminary functional analyses, the development of complex disease models, precision drug screening, and broad gene discovery studies.
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01. Pre-warm the complete culture medium in a 37°C water bath.
02. Thaw the cryovial in a 37°C water bath for 1–2 minutes.
03. Transfer the cryovial to a biosafety cabinet and wipe its surface with 70% ethanol.
04. Unscrew the cap of the cryovial and gently transfer the cell suspension into a sterile centrifuge tube containing 9 mL of complete culture medium.
05. Centrifuge at 125g for 5–7 minutes at room temperature, then discard the supernatant.
06. Resuspend the cell pellet in 5 mL of complete culture medium and transfer the cell suspension to a T25 culture flask.
07. Transfer the cells to a 37°C, 5% CO2 incubator for culture.
08. Recommended passage ratio: Passage at a ratio of 1/2 to 1/4; cells will confluence in 2–3 days. -
01. Cell passage can be performed when the cell confluence in the culture flask reaches 80%–90% or higher.
02. Remove the culture medium, PBS, and trypsin (0.25% Trypsin-EDTA, Gibco 25200-056) from the 4°C refrigerator, place them in a 37°C water bath, and once their temperature approaches 37°C, remove them, spray the exterior of the bottles with 75% ethanol, and then transfer them to a biosafety cabinet.03. Remove the culture flask to be passaged from the incubator, spray the flask with 75% ethanol, and place it in a biosafety cabinet.
04. To avoid detaching the cells, rinse them with PBS along the inner wall of the culture flask; discard the wash solution, and add 2 mL to a T25 flask.
Add the appropriate volume of trypsin (1.5 mL for T75, 0.5 mL for T25), and gently swirl the flask so the enzyme evenly coats the bottom of the vessel. Adjust the volume as needed. After approximately 1–2 minutes, when most cells have detached, add the corresponding volume of complete culture medium to stop the digestion, and gently pipette up and down with a 5-mL pipette until all cells are fully detached.
06. Transfer the cell suspension to a 15 mL centrifuge tube, centrifuge at 300g for 5 min, and discard the supernatant.
07. Resuspend the cells in 5 mL of complete medium, adjust the seeding ratio as needed, and replenish the complete medium in the culture flasks—add to 13–15 mL for T75 flasks and to 5 mL for T25 flasks—and supplement with 1% double antibiotic.
08. After capping the bottle and tightening the cap, gently shake the bottle to mix the cells evenly, then place it in a 37°C, 5% CO2 incubator. -
01. Prepare the cryopreservation solution and pre-cool it in advance.
02. Ensure that the cells to be cryopreserved meet the cryopreservation requirements; examine the following conditions under a microscope: healthy appearance and morphological characteristics, appropriate growth phase (late logarithmic phase), and absence of contamination or signs of decline.
03. Digest and centrifuge the cells (refer to the subculture protocol for specific steps).
04. Resuspend the cells in cryopreservation solution at 1 mL per tube, mix thoroughly by pipetting, and aliquot into cryovials.
05. Place the cells in a programmed cooling box and freeze them in a -80°C freezer.
06. The cells are subsequently transferred to a liquid nitrogen tank for long-term storage. - Western blot (WB) analysis was performed simultaneously on lysates from wild-type and KO cells using a specific monoclonal antibody; the target protein band was detected in WT cells but absent or diminished in KO cells.
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Classification： Gene-knockout cell line (protein levels validated)
Cell Line Information
Gene Symbol
Eif2ak2, Pkr, Prkr, Tik
NCBI Gene ID
19106
Ensembl ID
ENSMUSG00000024079
Uniprot ID
Q03963
Screening marker
N/A
Host cell/type
MLE-12/mouse lung epithelial cells
Specifications
1×10^6 cells/frozen vial
Growth Medium
DMEM/F12+2%FBS+0.5%ITS-G+10nM Hydrocortisone+10nM β-estradiol
growth characteristics
Adherent cells, epithelial-like
culture condition
Incubator at 37°C, 5% CO2, passage at 1/2 to 1/4 confluency
doubling time
~24-48 hours
Reference fluid change frequency
2-3 times/week
Mycoplasma test results
Negative
Knock-out validation
Knockout efficiency (Sanger sequencing)
100%
Proteome Validation Results
Protein-level validation has been completed.
Antibody number
Adding...
Antibody validation results
Cell Line Description
Introduction of target gene
IFN-induced dsRNA-dependent serine/threonine-protein kinase that phosphorylates the alpha subunit of eukaryotic translation initiation factor 2 (EIF2S1/eIF-2-alpha) and plays a key role in the innate immune response to viral infection (PubMed:20038207, PubMed:20478537, PubMed:21123651). Inhibits viral replication via the integrated stress response (ISR): EIF2S1/eIF-2-alpha phosphorylation in response to viral infection converts EIF2S1/eIF-2-alpha in a global protein synthesis inhibitor, resulting to a shutdown of cellular and viral protein synthesis, while concomitantly initiating the preferential translation of ISR-specific mRNAs, such as the transcriptional activator ATF4 (PubMed:20631127, PubMed:21123651). Exerts its antiviral activity on a wide range of DNA and RNA viruses including west nile virus (WNV), sindbis virus (SV), foot-and-mouth virus (FMDV), semliki Forest virus (SFV) and lymphocytic choriomeningitis virus (LCMV) (PubMed:19264662, PubMed:20585572, PubMed:20631127, PubMed:21994357). Also involved in the regulation of signal transduction, apoptosis, cell proliferation and differentiation: phosphorylates other substrates including p53/TP53, PPP2R5A, DHX9, ILF3, and IRS1 (PubMed:19229320, PubMed:23403623). In addition to serine/threonine-protein kinase activity, also has tyrosine-protein kinase activity and phosphorylates CDK1 at 'Tyr-4' upon DNA damage, facilitating its ubiquitination and proteasomal degradation (By similarity). Either as an adapter protein and/or via its kinase activity, can regulate various signaling pathways (p38 MAP kinase, NF-kappa-B and insulin signaling pathways) and transcription factors (JUN, STAT1, STAT3, IRF1, ATF3) involved in the expression of genes encoding pro-inflammatory cytokines and IFNs (PubMed:22948222, PubMed:23392680). Activates the NF-kappa-B pathway via interaction with IKBKB and TRAF family of proteins and activates the p38 MAP kinase pathway via interaction with MAP2K6 (By similarity). Can act as both a positive and negative regulator of the insulin signaling pathway (ISP) (By similarity). Negatively regulates ISP by inducing the inhibitory phosphorylation of insulin receptor substrate 1 (IRS1) at 'Ser-312' and positively regulates ISP via phosphorylation of PPP2R5A which activates FOXO1, which in turn up-regulates the expression of insulin receptor substrate 2 (IRS2) (By similarity). Can regulate NLRP3 inflammasome assembly and the activation of NLRP3, NLRP1, AIM2 and NLRC4 inflammasomes (PubMed:22801494, PubMed:23401008). Plays a role in the regulation of the cytoskeleton by binding to gelsolin (GSN), sequestering the protein in an inactive conformation away from actin (PubMed:22633459).
Cell development path
A stable KO cell line was generated using the CRISPR-RNP method; Sanger sequencing confirmed 100% knockout efficiency in the KO cell line.
Application
Gene knockout cell lines (KO Cell Lines) with high knockout efficiency are particularly well suited for preliminary functional analyses, the development of complex disease models, precision drug screening, and broad gene discovery studies.
Cell Culture Instructions
Cell Resuscitation
01. Pre-warm the complete culture medium in a 37°C water bath.
02. Thaw the cryovial in a 37°C water bath for 1–2 minutes.
03. Transfer the cryovial to a biosafety cabinet and wipe its surface with 70% ethanol.
04. Unscrew the cap of the cryovial and gently transfer the cell suspension into a sterile centrifuge tube containing 9 mL of complete culture medium.
05. Centrifuge at 125g for 5–7 minutes at room temperature, then discard the supernatant.
06. Resuspend the cell pellet in 5 mL of complete culture medium and transfer the cell suspension to a T25 culture flask.
07. Transfer the cells to a 37°C, 5% CO2 incubator for culture.
08. Recommended passage ratio: Passage at a ratio of 1/2 to 1/4; cells will confluence in 2–3 days.
cell passage
01. Cell passage can be performed when the cell confluence in the culture flask reaches 80%–90% or higher.
02. Remove the culture medium, PBS, and trypsin (0.25% Trypsin-EDTA, Gibco 25200-056) from the 4°C refrigerator, place them in a 37°C water bath, and once their temperature approaches 37°C, remove them, spray the exterior of the bottles with 75% ethanol, and then transfer them to a biosafety cabinet.
03. Remove the culture flask to be passaged from the incubator, spray the flask with 75% ethanol, and place it in a biosafety cabinet.
04. To avoid detaching the cells, rinse them with PBS along the inner wall of the culture flask; discard the wash solution, and add 2 mL to a T25 flask.
Add the appropriate volume of trypsin (1.5 mL for T75, 0.5 mL for T25), and gently swirl the flask so the enzyme evenly coats the bottom of the vessel. Adjust the volume as needed. After approximately 1–2 minutes, when most cells have detached, add the corresponding volume of complete culture medium to stop the digestion, and gently pipette up and down with a 5-mL pipette until all cells are fully detached.
06. Transfer the cell suspension to a 15 mL centrifuge tube, centrifuge at 300g for 5 min, and discard the supernatant.
07. Resuspend the cells in 5 mL of complete medium, adjust the seeding ratio as needed, and replenish the complete medium in the culture flasks—add to 13–15 mL for T75 flasks and to 5 mL for T25 flasks—and supplement with 1% double antibiotic.
08. After capping the bottle and tightening the cap, gently shake the bottle to mix the cells evenly, then place it in a 37°C, 5% CO2 incubator.
cell cryopreservation
01. Prepare the cryopreservation solution and pre-cool it in advance.
02. Ensure that the cells to be cryopreserved meet the cryopreservation requirements; examine the following conditions under a microscope: healthy appearance and morphological characteristics, appropriate growth phase (late logarithmic phase), and absence of contamination or signs of decline.
03. Digest and centrifuge the cells (refer to the subculture protocol for specific steps).
04. Resuspend the cells in cryopreservation solution at 1 mL per tube, mix thoroughly by pipetting, and aliquot into cryovials.
05. Place the cells in a programmed cooling box and freeze them in a -80°C freezer.
06. The cells are subsequently transferred to a liquid nitrogen tank for long-term storage.
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