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    products/cell-lines/human-egfr-knockout-hela-cell-line-ab255385.pdf

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Signal Transduction Protein Phosphorylation Tyrosine Kinases Receptor Tyrosine Kinases
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Human EGFR knockout HeLa cell line (ab255385)

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Sanger Sequencing - Human EGFR knockout HeLa cell line (ab255385)
  • Western blot - Human EGFR knockout HeLa cell line (ab255385)
  • Western blot - Human EGFR knockout HeLa cell line (ab255385)
  • Sanger Sequencing - Human EGFR knockout HeLa cell line (ab255385)
  • Sanger Sequencing - Human EGFR knockout HeLa cell line (ab255385)

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Primary
Product image
Anti-EGFR antibody [E235] (ab32077)
Primary
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Anti-EGFR antibody [EP38Y] (ab52894)

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Overview

  • Product name

    Human EGFR knockout HeLa cell line
    See all EGFR lysates
  • Parental Cell Line

    HeLa
  • Organism

    Human
  • Mutation description

    Knockout achieved by using CRISPR/Cas9, 1 bp deletion in exon 1 and 1 bp insertion in exon 1
  • Passage number

    <20
  • Knockout validation

    Sanger Sequencing, Western Blot (WB)
  • Tested applications

    Suitable for: WBmore details
  • Biosafety level

    2
  • General notes

    Recommended control: Human wild-type HeLa cell line (ab255928). 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: DMEM (High Glucose) + 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, 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.

Properties

  • Number of cells

    1 x 106 cells/vial, 1 mL
  • Viability

    ~80%
  • Adherent /Suspension

    Adherent
  • Tissue

    Cervix
  • Cell type

    epithelial
  • Disease

    Adenocarcinoma
  • Gender

    Female
  • STR Analysis

    Amelogenin X D5S818: 11, 12 D13S317: 12, 13.3 D7S820: 8, 12 D16S539: 9, 10 vWA: 16, 18 TH01: 7 TPOX: 8,12 CSF1PO: 9, 10
  • 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

    • Signal Transduction
    • Protein Phosphorylation
    • Tyrosine Kinases
    • Receptor Tyrosine Kinases
    • Signal Transduction
    • Growth Factors/Hormones
    • EGF
    • Cell Biology
    • Cell Cycle
    • Cell differentiation
    • Microbiology
    • Organism
    • Virus
    • RNA Virus
    • ssRNA positive strand virus
    • SARS Coronavirus
    • Cancer
    • Growth factors
    • EGF
    • Cancer
    • Signal transduction
    • Protein phosphorylation
    • Tyrosine kinases
    • Receptor tyrosine kinases
    • Cancer
    • Oncoproteins/suppressors
    • Oncoproteins
    • Growth factor receptors
    • Cancer
    • Tumor biomarkers
    • Receptors
    • Neuroscience
    • Development
    • Neuroscience
    • Processes

Target

  • Function

    Receptor tyrosine kinase binding ligands of the EGF family and activating several signaling cascades to convert extracellular cues into appropriate cellular responses. Known ligands include EGF, TGFA/TGF-alpha, amphiregulin, epigen/EPGN, BTC/betacellulin, epiregulin/EREG and HBEGF/heparin-binding EGF. Ligand binding triggers receptor homo- and/or heterodimerization and autophosphorylation on key cytoplasmic residues. The phosphorylated receptor recruits adapter proteins like GRB2 which in turn activates complex downstream signaling cascades. Activates at least 4 major downstream signaling cascades including the RAS-RAF-MEK-ERK, PI3 kinase-AKT, PLCgamma-PKC and STATs modules. May also activate the NF-kappa-B signaling cascade. Also directly phosphorylates other proteins like RGS16, activating its GTPase activity and probably coupling the EGF receptor signaling to the G protein-coupled receptor signaling. Also phosphorylates MUC1 and increases its interaction with SRC and CTNNB1/beta-catenin.
    Isoform 2 may act as an antagonist of EGF action.
  • Tissue specificity

    Ubiquitously expressed. Isoform 2 is also expressed in ovarian cancers.
  • Involvement in disease

    Lung cancer
    Inflammatory skin and bowel disease, neonatal, 2
  • Sequence similarities

    Belongs to the protein kinase superfamily. Tyr protein kinase family. EGF receptor subfamily.
    Contains 1 protein kinase domain.
  • Post-translational
    modifications

    Phosphorylation at Ser-695 is partial and occurs only if Thr-693 is phosphorylated. Phosphorylation at Thr-678 and Thr-693 by PRKD1 inhibits EGF-induced MAPK8/JNK1 activation. Dephosphorylation by PTPRJ prevents endocytosis and stabilizes the receptor at the plasma membrane. Autophosphorylation at Tyr-1197 is stimulated by methylation at Arg-1199 and enhances interaction with PTPN6. Autophosphorylation at Tyr-1092 and/or Tyr-1110 recruits STAT3. Dephosphorylated by PTPN1 and PTPN2.
    Monoubiquitinated and polyubiquitinated upon EGF stimulation; which does not affect tyrosine kinase activity or signaling capacity but may play a role in lysosomal targeting. Polyubiquitin linkage is mainly through 'Lys-63', but linkage through 'Lys-48', 'Lys-11' and 'Lys-29' also occurs. Deubiquitination by OTUD7B prevents degradation. Ubiquitinated by RNF115 and RNF126.
    Methylated. Methylation at Arg-1199 by PRMT5 stimulates phosphorylation at Tyr-1197.
  • Cellular localization

    Secreted and Cell membrane. Endoplasmic reticulum membrane. Golgi apparatus membrane. Nucleus membrane. Endosome. Endosome membrane. Nucleus. In response to EGF, translocated from the cell membrane to the nucleus via Golgi and ER. Endocytosed upon activation by ligand. Colocalized with GPER1 in the nucleus of estrogen agonist-induced cancer-associated fibroblasts (CAF).
  • Target information above from: UniProt accession P00533 The UniProt Consortium
    The Universal Protein Resource (UniProt) in 2010
    Nucleic Acids Res. 38:D142-D148 (2010) .

    Information by UniProt

Associated products

  • KO cell lysates

    • Human EGFR knockout HeLa cell lysate (ab263845)
  • Related Products

    • Anti-EGFR antibody [EP38Y] - Low endotoxin, Azide free (ab174481)
    • Anti-EGFR antibody [E235] - BSA and Azide free (ab227459)
    • Anti-EGFR antibody [E235] (ab32077)
    • Anti-EGFR antibody [EP38Y] (ab52894)

Applications

The Abpromise guarantee

Our Abpromise guarantee covers the use of ab255385 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
WB
Use at an assay dependent concentration. Predicted molecular weight: 134 kDa.
Notes
WB
Use at an assay dependent concentration. Predicted molecular weight: 134 kDa.

Images

  • Sanger Sequencing - Human EGFR knockout HeLa cell line (ab255385)
    Sanger Sequencing - Human EGFR knockout HeLa cell line (ab255385)
    Sequencing chromatogram displaying sequence edit in exon 1
  • Western blot - Human EGFR knockout HeLa cell line (ab255385)
    Western blot - Human EGFR knockout HeLa cell line (ab255385)
    All lanes : Anti-EGFR antibody [EP38Y] (ab52894) at 1/1000 dilution

    Lane 1 : A431 cell lysate
    Lane 2 : MDA-MB-468 cell lysate
    Lane 3 : Wild-type HeLa cell lysate
    Lane 4 : EGFR knockout HeLa cell lysate

    Lysates/proteins at 20 µg per lane.

    Secondary
    All lanes : Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) at 1/20000 dilution

    Performed under reducing conditions.

    Predicted band size: 134 kDa
    Additional bands at: 124 kDa (possible Loading Control)



    Lanes 1 - 4: Merged signal (red and green). Green - ab52894 observed at 175 kDa. Red - loading control, ab130007 observed at 125 kDa.  

     ab52894 was shown to react with EGFR in wild-type HeLa. Loss of signal was observed when knockout cell line ab255385 (knockout cell lysate ab263845) was used. Wild-type and EGFR knockout samples were subjected to SDS-PAGE. ab52894 and Anti-Vinculin antibody [VIN-54] (ab130007) were incubated overnight at 4°C 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.

     

  • Western blot - Human EGFR knockout HeLa cell line (ab255385)
    Western blot - Human EGFR knockout HeLa cell line (ab255385)
    All lanes : Anti-EGFR antibody [E235] (ab32077) at 1/1000 dilution

    Lane 1 : A431 cell lysate
    Lane 2 : MDA-MB-468 cell lysate
    Lane 3 : Wild type HeLa cell lysate
    Lane 4 : EGFR knockout HeLa cell lysate

    Lysates/proteins at 20 µg per lane.

    Secondary
    All lanes : Goat anti-Rabbit IgG H&L (IRDye® 800CW) preadsorbed (ab216773) at 1/20000 dilution

    Predicted band size: 134 kDa
    Observed band size: 124 kDa why is the actual band size different from the predicted?



    Lanes 1 - 4: Merged signal (red and green). Green - ab32077 observed at 175 kDa. Red - loading control, ab130007 observed at 125 kDa.  

     ab32077 was shown to react with EGFR in wild-type HeLa cells. Loss of signal was observed when knockout cell line ab255385 (knockout cell lysate ab263845) was used. Wild-type and EGFR knockout samples were subjected to SDS-PAGE. ab32077 and Anti-Vinculin antibody [VIN-54] (ab130007) were incubated overnight at 4°C 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.

     

     

  • Sanger Sequencing - Human EGFR knockout HeLa cell line (ab255385)
    Sanger Sequencing - Human EGFR knockout HeLa cell line (ab255385)

    Allele-1: 1 bp deletion in exon 1.

     

  • Sanger Sequencing - Human EGFR knockout HeLa cell line (ab255385)
    Sanger Sequencing - Human EGFR knockout HeLa cell line (ab255385)

    Allele-2: 1 bp insertion in exon 1.

     

Protocols

  • Hemocytometer protocol
  • Mammalian cell tissue culture techniques protocol

Click here to view the general protocols

Datasheets and documents

  • SDS download

  • Datasheet download

    Download

References (0)

Publishing research using ab255385? Please let us know so that we can cite the reference in this datasheet.

ab255385 has not yet been referenced specifically in any publications.

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