Overview

  • Product name
    Anti-PTEN antibody [EPR9941]
    See all PTEN primary antibodies
  • Description
    Rabbit monoclonal [EPR9941] to PTEN
  • Host species
    Rabbit
  • Tested applications
    Suitable for: WBmore details
  • Species reactivity
    Reacts with: Mouse, Rat, Human
  • Immunogen

    Recombinant full length protein corresponding to Human PTEN.

  • Positive control
    • HeLa, MCF7, 293T and A431 cell lysates; Human breast carcinoma tissue and Human colon tissue.
  • General notes

     

     

    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 ab154812 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 1/1000 - 1/10000. Predicted molecular weight: 47 kDa.

For unpurified use at 1/40.

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

  • 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 - ab154812 observed at 51 kDa. Red - loading control, ab8245, observed at 37 kDa.


    ab154812 was shown to specifically recognize 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, ab154812 and ab8245 (loading control to GAPDH) were diluted 1/1000 and 1/2000 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.

  • All lanes : Anti-PTEN antibody [EPR9941] (ab154812) at 1/1000 dilution

    Lane 1 : Mouse brain Lysate
    Lane 2 : Rat brain Lysate

    Lysates/proteins at 10 µg per lane.

    Secondary
    All lanes : Goat Anti-Rabbit IgG, (H+L), HRP- conjugated at 1/1000 dilution

    Predicted band size: 47 kDa
    Observed band size: 54 kDa
    why is the actual band size different from the predicted?

  • All lanes : Anti-PTEN antibody [EPR9941] (ab154812) at 1/1000 dilution

    Lane 1 : HeLa cell Lysate
    Lane 2 : Neuro-2a cell Lysate
    Lane 3 : Rat spleen cell Lysate

    Lysates/proteins at 10 µg per lane.

    Secondary
    All lanes : Goat Anti-Rabbit IgG, (H+L), HRP- conjugated at 1/1000 dilution

    Predicted band size: 47 kDa
    Observed band size: 54 kDa why is the actual band size different from the predicted?

  • All lanes : Anti-PTEN antibody [EPR9941] (ab154812) at 1/1000 dilution (unpurified)

    Lane 1 : HeLa cell lysate
    Lane 2 : MCF7 cell lysate
    Lane 3 : 293T cell lysate
    Lane 4 : A431 cell lysate

    Lysates/proteins at 10 µg per lane.

    Secondary
    All lanes : Goat anti-rabbit HRP at 1/2000 dilution

    Predicted band size: 47 kDa

References

This product has been referenced in:
  • Yanagisawa S  et al. Decreased phosphatase PTEN amplifies PI3K signaling and enhances proinflammatory cytokine release in COPD. Am J Physiol Lung Cell Mol Physiol 313:L230-L239 (2017). Read more (PubMed: 28522564) »
  • Noll A  et al. PARG deficiency is neither synthetic lethal with BRCA1 nor PTEN deficiency. Cancer Cell Int 16:53 (2016). WB . Read more (PubMed: 27375368) »
See all 3 Publications for this product

Customer reviews and Q&As

Application
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections)
Blocking step
H2O2 as blocking agent for 10 minute(s) · Concentration: 3% · Temperature: 25°C
Antigen retrieval step
Heat mediated - Buffer/Enzyme Used: EDTA, pH8, 100C, 20 min
Sample
Human Tissue sections (Small Intestine, Prostate Cancer)
Specification
Small Intestine, Prostate Cancer
Permeabilization
No
Fixative
Formaldehyde

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Submitted Mar 04 2015

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