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AB266119

Human E2F4 knockout HEK-293T cell line

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E2F4 KO cell line available to order. KO validated by Western blot. Free of charge wild type control available. Knockout achieved by using CRISPR/Cas9, 4 bp deletion in exon 2 and Insertion of the selection cassette in exon 2. To order both knockout and wild-type control cells: select '2 x 1000000 Cells/vial'. To order only knockout cells: select '1000000 Cells/vial'.
4 Images
Western blot - Human E2F4 knockout HEK-293T cell line (AB266119)
  • WB

Lab

Western blot - Human E2F4 knockout HEK-293T cell line (AB266119)

Lanes 1-4 : Merged signal (red and green). Green - ab150360 observed at 60 kDa. Red - loading control ab8245 observed at 36 kDa.

ab150360 Anti-E2F4 antibody [EPR8259] was shown to specifically react with E2F4 in wild-type HEK293T cells. Loss of signal was observed when knockout cell line ab266119 (knockout cell lysate ab257932) was used. Wild-type and E2F4 knockout samples were subjected to SDS-PAGE. ab150360 and Anti-GAPDH antibody [6C5] - Loading Control (ab8245) were incubated at room temperature for 2.5 hours at 1 in 1000 dilution and 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.

All lanes:

Western blot - Anti-E2F4 antibody [EPR8259] (<a href='/en-us/products/primary-antibodies/e2f4-antibody-epr8259-ab150360'>ab150360</a>) at 1/1000 dilution

Lane 1:

Wild-type HEK293T cell lysate at 20 µg

Lane 2:

E2F4 knockout HEK293T cell lysate at 20 µg

Lane 2:

Western blot - Human E2F4 knockout HEK-293T cell line (ab266119)

Lane 3:

K-562 cell lysate at 20 µg

Lane 4:

Jurkat cell lysate at 20 µg

Secondary

All lanes:

Western blot - Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (<a href='/en-us/products/secondary-antibodies/goat-rabbit-igg-h-l-irdye-800cw-preadsorbed-ab216773'>ab216773</a>) at 1/10000 dilution

Predicted band size: 44 kDa

Observed band size: 60 kDa

false

Sanger Sequencing - Human E2F4 knockout HEK-293T cell line (AB266119)
  • Sanger seq

Lab

Sanger Sequencing - Human E2F4 knockout HEK-293T cell line (AB266119)

Allele-2 : Insertion of the selection cassette in exon 2.

Sanger Sequencing - Human E2F4 knockout HEK-293T cell line (AB266119)
  • Sanger seq

Unknown

Sanger Sequencing - Human E2F4 knockout HEK-293T cell line (AB266119)

Allele-1 : 4 bp deletion in exon2

Cell Culture - Human E2F4 knockout HEK-293T cell line (AB266119)
  • Cell Culture

Lab

Cell Culture - Human E2F4 knockout HEK-293T cell line (AB266119)

Representative images E2F4 knockout HEK293T cells, low and high confluency examples (top left and right respectively) and wild-type HEK293T 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.

Key facts

Cell type

HEK-293T

Species or organism

Human

Tissue

Kidney

Form

Liquid

form

Knockout validation

Sanger Sequencing,Western blot

Mutation description

Knockout achieved by using CRISPR/Cas9, 4 bp deletion in exon 2 and Insertion of the selection cassette in exon 2

Reactivity data

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Product details

We will provide viable cells that proliferate on revival.

This product is subject to limited use licenses from The Broad Institute, ERS Genomics Limited and Sigma-Aldrich Co. LLC, and is developed with patented technology. For full details of the licenses and patents please refer to our limited use license and patent pages.

What's included?

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Properties and storage information

Gene name
E2F4
Gene editing type
Knockout
Gene editing method
CRISPR technology
Knockout validation
Sanger Sequencing, Western blot
Shipped at conditions
Dry Ice
Appropriate short-term storage conditions
-196°C
Appropriate long-term storage conditions
-196°C

Handling procedures

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 seed all remaining cells into a T25.
4. Incubate the culture at 37°C incubator with 5% CO2. Check the culture one day after revival and continue to check until 80% confluent. Media change can be given if needed.
5. Once confluent passage into an appropriate 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. 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.
  • Cells should be passaged when they have achieved 80-90% confluence.
Culture medium

DMEM (High Glucose) + 10% FBS

Cryopreservation medium

Cell Freezing Medium-DMSO Serum free media, contains 8.7% DMSO in MEM supplemented with methyl cellulose.

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

E2F4 sometimes known as E2F-4 is part of the E2F family of transcription factors. It plays a critical role in controlling the cell cycle by regulating the expression of genes necessary for DNA synthesis. E2F4 has a molecular weight of around 45 kDa. These transcription factors are widely expressed in a variety of tissues reflecting their importance in cell biology. E2F4 typically functions by forming complexes with dimerization partner (DP) proteins mainly in the nucleus where it binds to DNA and influences transcription.
Biological function summary

E2F4 functions as a regulator of cell cycle progression. It forms complexes localizing mostly in the nucleus controlling the transition from G1 to S phase by regulating genes associated with cell cycle arrest and DNA replication. Partnering with members of the DP family enhances its DNA binding capacity influencing genes involved in cell cycle arrest and DNA repair processes. E2F4 predominantly acts as a transcriptional repressor in quiescent and differentiating cells maintaining the cell in a non-proliferative state.

Pathways

E2F4 is significant in the regulation of the cell cycle and DNA damage response pathways. It engages with the retinoblastoma protein family (pRB p107 p130) to exert repressive effects on E2F-target genes ensuring proper cell cycle exit and maintaining the G0 phase. The interaction with p130 is instrumental during the G0 state preventing inappropriate cell proliferation and contributing to the maintenance of cellular quiescence.

E2F4's role is noteworthy in cancer and retinoblastoma. Alterations in its regulation or activity can lead to unchecked cell proliferation a hallmark of cancerous growths. The malfunction or suppression of its activity can disrupt cell cycle control contributing to oncogenesis. In instances of retinoblastoma improper interaction between E2F4 and the retinoblastoma protein family can result in disrupted cell cycle checkpoints highlighting its importance in maintaining cellular homeostasis and preventing tumorigenesis.

Quality control

STR analysis

CSF1PO, D13S317, D7S820, D5S818, TH01, D16S539, TPOX

Cell culture

Biosafety level

EU: 2 US: 2

Adherent/suspension

Adherent

Gender

Female

Product protocols

Product promise

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