Human NFKB2 (NFkB p100/NFKB2) knockout HCT116 cell line (ab266883)
Overview
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Product name
Human NFKB2 (NFkB p100/NFKB2) knockout HCT116 cell line
See all NFkB p100/NFKB2 lysates -
Parental Cell Line
HCT116 -
Organism
Human -
Mutation description
Knockout achieved by using CRISPR/Cas9, Homozygous: 5 bp deletion in exon 8 -
Passage number
<20 -
Knockout validation
Sanger Sequencing -
Tested applications
Suitable for: WBmore details -
Biosafety level
1 -
General notes
Western blot data indicates that the CRISPR gene edit may have resulted in a truncation of the protein of interest. Please see data images.
Recommended control: Human wild-type HCT116 cell line (ab255451). Please note a wild-type cell line is not automatically included with a knockout cell line order, if required please add recommended wild-type cell line at no additional cost using the code WILDTYPE-TMTK1.
Cryopreservation cell medium: Cell Freezing Medium-DMSO Serum free media, contains 8.7% DMSO in MEM supplemented with methyl cellulose.
Culture medium: McCoY5a + 10% FBS
Initial handling guidelines: Upon arrival, the vial should be stored in liquid nitrogen vapor phase and not at -80°C. Storage at -80°C may result in loss of viability.
1. Thaw the vial in 37°C water bath for approximately 1-2 minutes.
2. Transfer the cell suspension (0.8 mL) to a 15 mL/50 mL conical sterile polypropylene centrifuge tube containing 8.4 mL pre-warmed culture medium, wash vial with an additional 0.8 mL culture medium (total volume 10 mL) to collect remaining cells, and centrifuge at 201 x g (rcf) for 5 minutes at room temperature. 10 mL represents minimum recommended dilution. 20 mL represents maximum recommended dilution.
3. Resuspend the cell pellet in 5 mL pre-warmed culture medium and count using a haemocytometer or alternative cell counting method. Based on cell count, seed cells in an appropriate cell culture flask at a density of 2x104 cells/cm2. Seeding density is given as a guide only and should be scaled to align with individual lab schedules.
4. Incubate the culture at 37°C incubator with 5% CO2. Cultures should be monitored daily.Subculture guidelines:
- All seeding densities should be based on cell counts gained by established methods.
- A guide seeding density of 2x104 cells/cm2 is recommended.
- A partial media change 24 hours prior to subculture may be helpful to encourage growth, if required.
- Cells should be passaged when they have achieved 80-90% confluence.
This product is subject to limited use licenses from The Broad Institute and ERS Genomics Limited, and is developed with patented technology. For full details of the limited use licenses and relevant patents please refer to our limited use license and patent pages.
We will provide viable cells that proliferate on revival.
Properties
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Number of cells
1 x 106 cells/vial, 1 mL -
Adherent /Suspension
Adherent -
Tissue
Colon -
Cell type
epithelial -
Disease
Carcinoma -
Gender
Male -
STR Analysis
Amelogenin X D5S818: 10, 11 D13S317: 10, 12 D7S820: 11, 12 D16S539: 11, 13 vWA: 17, 22 TH01: 8,9 TPOX: 8, 9 CSF1PO: 7, 10 -
Antibiotic resistance
Puromycin 1.00µg/ml -
Mycoplasma free
Yes -
Storage instructions
Shipped on Dry Ice. Store in liquid nitrogen. -
Storage buffer
Constituents: 8.7% Dimethylsulfoxide, 2% Cellulose, methyl ether -
Research areas
Target
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Relevance
NF-kappa-B is a pleiotropic transcription factor present in almost all cell types and is the endpoint of a series of signal transduction events that are initiated by a vast array of stimuli related to many biological processes such as inflammation, immunity, differentiation, cell growth, tumorigenesis and apoptosis. NF-kappa-B is a homo- or heterodimeric complex formed by the Rel-like domain-containing proteins RELA/p65, RELB, NFKB1/p105, NFKB1/p50, REL and NFKB2/p52. The dimers bind at kappa-B sites in the DNA of their target genes and the individual dimers have distinct preferences for different kappa-B sites that they can bind with distinguishable affinity and specificity. Different dimer combinations act as transcriptional activators or repressors, respectively. NF-kappa-B is controlled by various mechanisms of post-translational modification and subcellular compartmentalization as well as by interactions with other cofactors or corepressors. NF-kappa-B complexes are held in the cytoplasm in an inactive state complexed with members of the NF-kappa-B inhibitor (I-kappa-B) family. In a conventional activation pathway, I-kappa-B is phosphorylated by I-kappa-B kinases (IKKs) in response to different activators, subsequently degraded thus liberating the active NF-kappa-B complex which translocates to the nucleus. In a non-canonical activation pathway, the MAP3K14-activated CHUK/IKKA homodimer phosphorylates NFKB2/p100 associated with RelB, inducing its proteolytic processing to NFKB2/p52 and the formation of NF-kappa-B RelB-p52 complexes. The NF-kappa-B heterodimeric RelB-p52 complex is a transcriptional activator. The NF-kappa-B p52-p52 homodimer is a transcriptional repressor. NFKB2 appears to have dual functions such as cytoplasmic retention of attached NF-kappa-B proteins by p100 and generation of p52 by a cotranslational processing. The proteasome-mediated process ensures the production of both p52 and p100 and preserves their independent function. p52 binds to the kappa-B consensus sequence 5'-GGRNNYYCC-3', located in the enhancer region of genes involved in immune response and acute phase reactions. p52 and p100 are respectively the minor and major form; the processing of p100 being relatively poor. Isoform p49 is a subunit of the NF-kappa-B protein complex, which stimulates the HIV enhancer in synergy with p65. In concert with RELB, regulates the circadian clock by repressing the transcriptional activator activity of the CLOCK-ARNTL/BMAL1 heterodimer. -
Cellular localization
Cytoplasmic and Nuclear
Associated products
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KO cell lysates
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Related Products
Applications
The Abpromise guarantee
Our Abpromise guarantee covers the use of ab266883 in the following tested applications.
The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Application | Abreviews | Notes |
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WB |
Use at an assay dependent concentration. Predicted molecular weight: 97 kDa.
Western blot data indicates that the CRISPR gene edit may have resulted in a truncation of the protein of interest. Please see data images. |
Notes |
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WB
Use at an assay dependent concentration. Predicted molecular weight: 97 kDa. Western blot data indicates that the CRISPR gene edit may have resulted in a truncation of the protein of interest. Please see data images. |
Images
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Lane 1 : Anti-NFkB p100/NFKB2 antibody [EPR4686-66] (ab175192) at 1/1000 dilution
Lane 2 : Anti-TRIM24 antibody [EPR22825-2] (ab256491) at 1/1000 dilution
Lane 1 : Wild-type HCT116 cell lysate
Lane 2 : NFKB2 knockout HCT116 cell lysate
Lysates/proteins at 20 µg per lane.
Performed under reducing conditions.
Predicted band size: 97 kDa
Observed band size: 120 kDa why is the actual band size different from the predicted?Lanes 1- 2: Merged signal (red and green). Green - ab175192 observed at 120 kDa. Red - Anti-GAPDH antibody [6C5] - Loading Control (ab8245) observed at 37 kDa.
ab175192 was shown to react with NFkB p100/NFKB2 in wild-type HCT116 cells in western blot. The band observed in knockout cell line ab266883 (knockout cell lysate ab257245) lane below 97kDa may represent truncated forms and cleaved fragments. This has not been investigated further. Wild-type HCT116 and NFKB2 knockout HCT117 cell lysates were subjected to SDS-PAGE. Membrane was blocked for 1 hour at room temperature in 0.1% TBST with 3% non-fat dried milk. ab175192 and Anti-GAPDH antibody [6C5] - Loading Control (ab8245) were incubated overnight at 4°C at a 1 in 10000 dilution and a 1 in 20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye®800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye®680RD) preadsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.
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All lanes : Anti-NFkB p100/NFKB2 antibody [EPR4686] (ab109440) at 1/1000 dilution
Lane 1 : Wild-type HCT116 cell lysate
Lane 2 : NFKB2 knockout HCT116 cell lysate
Lysates/proteins at 20 µg per lane.
Performed under reducing conditions.
Predicted band size: 97 kDa
Observed band size: 120 kDa why is the actual band size different from the predicted?Lanes 1- 2: Merged signal (red and green). Green - ab109440 observed at 120 kDa. Red - Anti-GAPDH antibody [6C5] - Loading Control (ab8245) observed at 37 kDa.
ab109440 was shown to react with NFkB p100/NFKB2 in wild-type HCT116 cells in western blot. The band observed in knockout cell line ab266883 (knockout cell lysate ab257245) lane below 97kDa may represent truncated forms and cleaved fragments. This has not been investigated further. Wild-type HCT116 and NFKB2 knockout HCT116 cell lysates were subjected to SDS-PAGE. Membrane was blocked for 1 hour at room temperature in 0.1% TBST with 3% non-fat dried milk. ab109440 and Anti-GAPDH antibody [6C5] - Loading Control (ab8245) were incubated overnight at 4°C at a 1 in 1000 dilution and a 1 in 20000 dilution respectively. Blots were developed with Goat anti-Rabbit IgG H&L (IRDye®800CW) preadsorbed (ab216773) and Goat anti-Mouse IgG H&L (IRDye®680RD) preadsorbed (ab216776) secondary antibodies at 1 in 20000 dilution for 1 hour at room temperature before imaging.
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Homozygous: 5 bp deletion in exon8
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Representative images NFKB2 knockout HCT116 cells, low and high confluency examples (top left and right respectively) and wild-type HCT116 cells, low and high confluency (bottom left and right respectively) showing typical adherent, epithelial-like morphology. Images were captured at 10X magnification using a EVOS M5000 microscope.
Protocols
Datasheets and documents
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SDS download
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Datasheet download
References (0)
ab266883 has not yet been referenced specifically in any publications.