Validated using a knockout cell line
Recombinant
RabMAb

Anti-PTEN antibody [EPR9941-2] (ab170941)

Overview

  • Product name
    Anti-PTEN antibody [EPR9941-2]
    See all PTEN primary antibodies
  • Description
    Rabbit monoclonal [EPR9941-2] to PTEN
  • Host species
    Rabbit
  • Tested applications
    Suitable for: IHC-P, WB, ICC/IF, Flow Cytmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    Recombinant fragment within Human PTEN aa 1 to the C-terminus. The exact sequence is proprietary.
    Database link: P60484

  • Positive control
    • WB: HeLa, MCF7 and 293T cell lysates. IHC-P: Human breast carcinoma and colon tissues. ICC/IF: HeLa cells.
  • General notes

    Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMab® patents

    We are constantly working hard to ensure we provide our customers with best in class antibodies. As a result of this work we are pleased to now offer this antibody in purified format. We are in the process of updating our datasheets. The purified format is designated 'PUR' on our product labels. If you have any questions regarding this update, please contact our Scientific Support team.

    This product is a recombinant rabbit monoclonal antibody.

Properties

Applications

Our Abpromise guarantee covers the use of ab170941 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
IHC-P 1/50 - 1/100. Perform heat mediated antigen retrieval with citrate buffer pH 6 before commencing with IHC staining protocol.
WB 1/1000 - 1/5000. Predicted molecular weight: 47 kDa.
ICC/IF 1/100.

For unpurified use at 1/500

Flow Cyt 1/120.

Target

  • Function
    Tumor suppressor. Acts as a dual-specificity protein phosphatase, dephosphorylating tyrosine-, serine- and threonine-phosphorylated proteins. Also acts as a lipid phosphatase, removing the phosphate in the D3 position of the inositol ring from phosphatidylinositol 3,4,5-trisphosphate, phosphatidylinositol 3,4-diphosphate, phosphatidylinositol 3-phosphate and inositol 1,3,4,5-tetrakisphosphate with order of substrate preference in vitro PtdIns(3,4,5)P3 > PtdIns(3,4)P2 > PtdIns3P > Ins(1,3,4,5)P4. The lipid phosphatase activity is critical for its tumor suppressor function. Antagonizes the PI3K-AKT/PKB signaling pathway by dephosphorylating phosphoinositides and thereby modulating cell cycle progression and cell survival. The unphosphorylated form cooperates with AIP1 to suppress AKT1 activation. Dephosphorylates tyrosine-phosphorylated focal adhesion kinase and inhibits cell migration and integrin-mediated cell spreading and focal adhesion formation. Plays a role as a key modulator of the AKT-mTOR signaling pathway controlling the tempo of the process of newborn neurons integration during adult neurogenesis, including correct neuron positioning, dendritic development and synapse formation. May be a negative regulator of insulin signaling and glucose metabolism in adipose tissue. The nuclear monoubiquitinated form possesses greater apoptotic potential, whereas the cytoplasmic nonubiquitinated form induces less tumor suppressive ability. In motile cells, suppresses the formation of lateral pseudopods and thereby promotes cell polarization and directed movement.
    Isoform alpha: Functional kinase, like isoform 1 it antagonizes the PI3K-AKT/PKB signaling pathway. Plays a role in mitochondrial energetic metabolism by promoting COX activity and ATP production, via collaboration with isoform 1 in increasing protein levels of PINK1.
  • Tissue specificity
    Expressed at a relatively high level in all adult tissues, including heart, brain, placenta, lung, liver, muscle, kidney and pancreas.
  • Involvement in disease
    Cowden syndrome 1
    Lhermitte-Duclos disease
    Bannayan-Riley-Ruvalcaba syndrome
    Squamous cell carcinoma of the head and neck
    Endometrial cancer
    PTEN mutations are found in a subset of patients with Proteus syndrome, a genetically heterogeneous condition. The molecular diagnosis of PTEN mutation positive cases classifies Proteus syndrome patients as part of the PTEN hamartoma syndrome spectrum. As such, patients surviving the early years of Proteus syndrome are likely at a greater risk of developing malignancies.
    Glioma 2
    VACTERL association with hydrocephalus
    Prostate cancer
    Macrocephaly/autism syndrome
    A microdeletion of chromosome 10q23 involving BMPR1A and PTEN is a cause of chromosome 10q23 deletion syndrome, which shows overlapping features of the following three disorders: Bannayan-Zonana syndrome, Cowden disease and juvenile polyposis syndrome.
  • Sequence similarities
    Contains 1 C2 tensin-type domain.
    Contains 1 phosphatase tensin-type domain.
  • Domain
    The C2 domain binds phospholipid membranes in vitro in a Ca(2+)-independent manner; this binding is important for its tumor suppressor function.
  • Post-translational
    modifications
    Constitutively phosphorylated by CK2 under normal conditions. Phosphorylated in vitro by MAST1, MAST2, MAST3 and STK11. Phosphorylation results in an inhibited activity towards PIP3. Phosphorylation can both inhibit or promote PDZ-binding. Phosphorylation at Tyr-336 by FRK/PTK5 protects this protein from ubiquitin-mediated degradation probably by inhibiting its binding to NEDD4. Phosphorylation by ROCK1 is essential for its stability and activity. Phosphorylation by PLK3 promotes its stability and prevents its degradation by the proteasome.
    Monoubiquitinated; monoubiquitination is increased in presence of retinoic acid. Deubiquitinated by USP7; leading to its nuclear exclusion. Monoubiquitination of one of either Lys-13 and Lys-289 amino acid is sufficient to modulate PTEN compartmentalization. Ubiquitinated by XIAP/BIRC4.
  • Cellular localization
    Secreted. May be secreted via a classical signal peptide and reenter into cells with the help of a poly-Arg motif and Cytoplasm. Nucleus. Nucleus, PML body. Monoubiquitinated form is nuclear. Nonubiquitinated form is cytoplasmic. Colocalized with PML and USP7 in PML nuclear bodies. XIAP/BIRC4 promotes its nuclear localization.
  • Information by UniProt
  • Database links
  • Alternative names
    • 10q23del antibody
    • BZS antibody
    • DEC antibody
    • GLM2 antibody
    • MGC11227 antibody
    • MHAM antibody
    • MMAC1 antibody
    • MMAC1 phosphatase and tensin homolog deleted on chromosome 10 antibody
    • Mutated in multiple advanced cancers 1 antibody
    • Phosphatase and tensin homolog antibody
    • Phosphatase and tensin like protein antibody
    • Phosphatidylinositol 3,4,5-trisphosphate 3-phosphatase and dual-specificity protein phosphatase PTEN antibody
    • Pten antibody
    • PTEN_HUMAN antibody
    • PTEN1 antibody
    • TEP1 antibody
    see all

Images

  • Immunocytochemistry/ Immunofluorescence analysis of HeLa (Human cervix adenocarcinoma epithelial cell) cells labeling PTEN with Purified ab170941 at 1:100 dilution (2.6 µg/ml). Cells were fixed in 4% Paraformaldehyde and permeabilized with 0.1% tritonX-100. Cells were counterstained with Ab195889 Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker (Alexa Fluor®594) 1:200 (2.5 µg/ml). Goat anti rabbit IgG (Alexa Fluor®488, ab150077) was used as the secondary antibody at 1:1000 (2 µg/ml) dilution. DAPI nuclear counterstain. PBS instead of the primary antibody was used as the secondary antibody only control.
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Rat cerebrum tissue sections labeling PTEN with Purified ab170941 at 1:50 dilution (5.3 µg/ml). Heat mediated antigen retrieval was performed using Perform heat mediated antigen retrieval using ab93684 (Tris/EDTA buffer, pH 9.0)ImmunoHistoProbe one step HRP Polymer (ready to use)was used as the secondary antibody.Negative control:PBS instead of the primary antibody.Hematoxylinwas used as a counterstain
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Mouse cerebrum tissue sections labeling PTEN with Purified ab170941 at 1:50 dilution (5.3 µg/ml). Heat mediated antigen retrieval was performed using Perform heat mediated antigen retrieval using ab93684 (Tris/EDTA buffer, pH 9.0)ImmunoHistoProbe one step HRP Polymer (ready to use)was used as the secondary antibody.Negative control:PBS instead of the primary antibody.Hematoxylinwas used as a counterstain
  • Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of Human pancreas tissue sections labeling PTEN with Purified ab170941 at 1:50 dilution (5.3 µg/ml). Heat mediated antigen retrieval was performed Perform heat mediated antigen retrieval using ab93684 (Tris/EDTA buffer, pH 9.0)ImmunoHistoProbe one step HRP Polymer (ready to use)was used as the secondary antibody.Negative control:PBS instead of the primary antibody.Hematoxylinwas used as a counterstain.
  • Lane 1: Wild-type HAP1 cell lysate (20 µg)
    Lane 2: PTEN knockout HAP1 cell lysate (20 µg)
    Lanes 1 and 2: Merged signal (red and green). Green - ab170941 observed at 47 kDa. Red - loading control, ab8245, observed at 37 kDa.


    Unpurified ab170941 was shown to specifically react with PTEN in wild-type HAP1 cells. No band was observed when PTEN knockout samples were used. Wild-type and PTEN knockout samples were subjected to SDS-PAGE, ab170941 and ab8245 (loading control to GAPDH) were diluted 1/500 and 1/1000 respectively and incubated overnight at 4°C. 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 1/10,000 dilution for 1hr at room temperature before imaging.

  • Immunohistochemical analysis of paraffin-embedded Human breast carcinoma tissue labeling PTEN with unpurifed ab170941 at 1/50 dilution.

  • Flow Cytometry analysis of HeLa (human cervix adenocarcinoma) cells labeling PTEN with purified ab170941 at 1/120 dilution(10ug/ml) (red). Cells were fixed with 80% methanol and permeabilised with 0.1% Tween-20. A Goat anti rabbit IgG (Alexa Fluor® 488)(ab150077)(1/2000 dilution) was used as the secondary antibody. Rabbit monoclonal IgG (Black)(ab172730) was used as the isotype control, cells without incubation with primary antibody and secondary antibody (Blue) were used as the unlabeled control.

  • All lanes : Anti-PTEN antibody [EPR9941-2] (ab170941) at 1/1000 dilution (Unpurified)

    Lane 1 : HeLa cell lysates
    Lane 2 : MCF7 cell lysates
    Lane 3 : 293T cell lysates

    Lysates/proteins at 10 µg per lane.

    Predicted band size: 47 kDa

  • Immunohistochemical analysis of paraffin-embedded Human colon tissue labeling PTEN with unpurifed ab170941 at 1/50 dilution.

References

This product has been referenced in:
  • Wu Y  et al. Suv4-20h1 promotes G1 to S phase transition by downregulating p21WAF1/CIP1 expression in chronic myeloid leukemia K562 cells. Oncol Lett 15:6123-6130 (2018). Read more (PubMed: 29616094) »
  • Liu H  et al. PI3K/AKT/mTOR pathway promotes progestin resistance in endometrial cancer cells by inhibition of autophagy. Onco Targets Ther 10:2865-2871 (2017). WB ; Human . Read more (PubMed: 28652768) »

See all 2 Publications for this product

Customer reviews and Q&As

Application
Immunocytochemistry/ Immunofluorescence
Sample
Human Cell (Keratinocyte (HaCaT))
Permeabilization
Yes - 0.2% Tritonx100
Specification
Keratinocyte (HaCaT)
Fixative
Paraformaldehyde
Username

Dr. Ann Wheeler

Verified customer

Submitted Jul 05 2017

Please note: All products are "FOR RESEARCH USE ONLY AND ARE NOT INTENDED FOR DIAGNOSTIC OR THERAPEUTIC USE"

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