05-212
Anti-PI3 Kinase Antibody, p85, N-SH3, clone AB6
clone AB6, Upstate®, from mouse
Synonym(s):
PI3-kinase p85 subunit alpha, PtdIns-3-kinase p85-alpha, phosphatidylinositol 3-kinase, regulatory subunit, polypeptide 1 (p85
alpha), phosphatidylinositol 3-kinase, regulatory, 1, phosphatidylinositol 3-kinase-associated p-85 alpha, phosphoinos
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About This Item
UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41
Recommended Products
biological source
mouse
Quality Level
antibody form
purified antibody
antibody product type
primary antibodies
clone
AB6, monoclonal
species reactivity
human, rat, mouse
manufacturer/tradename
Upstate®
technique(s)
immunocytochemistry: suitable
immunoprecipitation (IP): suitable
western blot: suitable
isotype
IgG1κ
NCBI accession no.
UniProt accession no.
shipped in
wet ice
target post-translational modification
unmodified
Gene Information
human ... PIK3R1(5295)
General description
The enzyme phosphatidylinositol 3 kinase (PI3 kinase) is a lipid kinase that is thought to phosphorylate second messengers in growth signaling pathways. PI3K exists as a heterodimer of catalytic 110 kDa (p110) and regulatory 85 kDa (p85, p50 or p55) subunits. The p85 unit consists of two closely related proteins: p85 alpha, which binds tightly to the catalytic subunit and p85 beta, a protein of unknown function. They share 62% amino acid sequence identity. p85 alpha lacks PI3 kinase activity, but may serve as regulator of the catalytic subunit, p110, by acting as the link between PI3K and the ligand activated receptor. Both isoforms bind to activated receptors and serve as tyrosine kinase substrates.
Specificity
This antibody recognizes p85 alpha subunit of PI3 Kinase; does not recognize p85 beta subunit.
Immunogen
Recombinant human p85 alpha PI3 Kinase expressed in E. Coli. Clone AB6.
Application
Immunocytochemistry:
10 µg/mL of a previous lot of this antibody was used in immunocytochemistry.
Immunoprecipitation:
4 µg of a previous lot immunoprecipitated PI3 Kinase from 500 µg of an A431 RIPA lysate, as confirmed by immunoblot using a polyclonal PI3 Kinase antibody (Catalog # 06-195).
10 µg/mL of a previous lot of this antibody was used in immunocytochemistry.
Immunoprecipitation:
4 µg of a previous lot immunoprecipitated PI3 Kinase from 500 µg of an A431 RIPA lysate, as confirmed by immunoblot using a polyclonal PI3 Kinase antibody (Catalog # 06-195).
Research Category
Signaling
Signaling
Research Sub Category
PI3K, Akt, & mTOR Signaling
Kinases & Phosphatases
PI3K, Akt, & mTOR Signaling
Kinases & Phosphatases
This Anti-PI3 Kinase Antibody, p85, N-SH3, clone AB6 is validated for use in IC, IP, WB for the detection of PI3 Kinase.
Quality
Routinely evaluated by Western Blot on RIPA lysates from human A431 cells, or RIPA lysates from rat L6 myoblasts.
Western Blot Analysis:
0.5-2 µg/mL of this lot detected PI3 Kinase in RIPA lysates from human A431 cells; previous lots detected PI3 Kinase in RIPA lysates from rat L6 myoblasts.
Western Blot Analysis:
0.5-2 µg/mL of this lot detected PI3 Kinase in RIPA lysates from human A431 cells; previous lots detected PI3 Kinase in RIPA lysates from rat L6 myoblasts.
Target description
85 kDa
Linkage
Replaces: 04-403
Physical form
Format: Purified
Protein A chromatography
Purified mouse monoclonal IgG1κ in buffer containing PBS, pH 7.2 with 50% glycerol.
Storage and Stability
Stable for 1 year at -20°C from date of receipt.
Handling Recommendations:
Upon receipt, and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20ºC. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance. Note: Variability in freezer temperatures below -20ºC may cause glycerol-containing solutions to become frozen during storage.
Handling Recommendations:
Upon receipt, and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20ºC. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance. Note: Variability in freezer temperatures below -20ºC may cause glycerol-containing solutions to become frozen during storage.
Analysis Note
Control
Positive Antigen Control: Catalog #12-301, non-stimulated A431 cell lysate. Add 2.5µL of 2-mercaptoethanol/100µL of lysate and boil for 5 minutes to reduce the preparation. Load 20µg of reduced lysate per lane for minigels.
Positive Antigen Control: Catalog #12-301, non-stimulated A431 cell lysate. Add 2.5µL of 2-mercaptoethanol/100µL of lysate and boil for 5 minutes to reduce the preparation. Load 20µg of reduced lysate per lane for minigels.
Other Notes
Concentration: Please refer to the Certificate of Analysis for the lot-specific concentration.
Legal Information
UPSTATE is a registered trademark of Merck KGaA, Darmstadt, Germany
Disclaimer
Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.
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Storage Class Code
12 - Non Combustible Liquids
WGK
WGK 2
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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Differential activation of phospholipase C-gamma 1 and mitogen-activated protein kinase in naive and antigen-primed CD4 T cells by the peptide/MHC ligand
Ericsson, P. O., et al
Journal of immunology (Baltimore, Md. : 1950), 156, 2045-2053 (1996)
Kianoush Khaleghpour et al.
Carcinogenesis, 25(2), 241-248 (2003-10-28)
The phosphoinositide 3-kinase (PI 3-kinase) signaling pathway has been shown to play a pivotal role in intracellular signal transduction pathways involved in cell growth, cellular transformation and tumorigenesis. Analysis of several colon adenocarcinoma cell lines indicates that the PI 3-kinase
Erythropoietin-dependent association of phosphatidylinositol 3-kinase with tyrosine-phosphorylated erythropoietin receptor.
Miura, O, et al.
The Journal of Biological Chemistry, 269, 614-620 (1994)
Structure of 85 kDa subunit of human phosphatidylinositol 3-kinase analyzed by using monoclonal antibodies
Tanaka, S., et al
Japanese Journal of Cancer Research, 84, 279-289 (1993)
Ana Ruiz-Saenz et al.
Cancer research, 78(13), 3645-3658 (2018-05-16)
Current evidence suggests that HER2-driven tumorigenesis requires HER3. This is likely due to the unique ability of HER3 to activate PI3K/Akt pathway signaling, which is not directly accessible to HER2. By genetic elimination of HER3 or shRNA knockdown of HER3
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