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05-417

Sigma-Aldrich

Anti-Paxillin Antibody, clone 5H11

clone 5H11, Upstate®, from mouse

Synonym(s):

FLJ16691, paxillin

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About This Item

UNSPSC Code:
12352203
eCl@ss:
32160702
NACRES:
NA.41

biological source

mouse

Quality Level

antibody form

purified immunoglobulin

antibody product type

primary antibodies

clone

5H11, monoclonal

species reactivity

chicken, rat, bovine, mouse, human, avian

manufacturer/tradename

Upstate®

technique(s)

immunocytochemistry: suitable
immunoprecipitation (IP): suitable
western blot: suitable

isotype

IgG1

NCBI accession no.

UniProt accession no.

shipped in

dry ice

target post-translational modification

unmodified

Gene Information

human ... PXN(5829)
rat ... Pxn(360820)

General description

Paxillin, a focal adhesion scaffolding protein, is phosphorylated on multiple tyrosine residues in response various stimulations including integrin stimulation, growth factor stimulation, and oncogenic transformation (v-Src, v-Crk and BCR/ABL). Paxillin binds many other focal adhesion proteins including FAK, Vinculin, Talin, and Tensin. As such, Paxillin and it tyrosine phosphorylation, help regulate the dynamics of the focal adhesions and the actin cytoskeleton which results in cell morphology and cell migration characteristics of the cell. Paxillin is most notable phosphorylated on tyrosines 31 and 118 (Tyr31 and Tyr118). Interestingly, Vinculin and FAK bind to overlapping sites on Paxillin. Additionally, there is an increase in Paxillin phosphorylation at Tyr118 in vinculin (-/-) and Vinculin Y822F cells. Paxillin Y31F Y118F expression restores apoptosis and inhibits Erk activity.

Specificity

Other species cross-reactivity not tested.
This antibody recognizes paxillin.

Immunogen

GST fusion protein containing fulllength human paxillin. Clone 5H11.

Application

Anti-Paxillin Antibody, clone 5H11 is an antibody against Paxillin for use in IC, IP & WB.
Immunoprecipitation:
4 μg of a previous lot of antibody immunoprecipitated paxillin from 500 μg of a 3T3/A31 RIPA lysate.

Immunocytochemistry:
5-10 μg/mL of a previous lot gave positive immunostaining for paxillin in REF (rat embryo fibroblast) 52 cells fixed with 3.7% paraformaldehyde for 5 minutes.
Research Category
Signaling
Research Sub Category
Cytoskeletal Signaling

Quality

Routinely evaluated by Western Blot on RIPA lysates from 3T3/A31 fibroblasts.

Western Blot Analysis:
0.5-2 μg/mL of this lot detected paxillin in RIPA lysates from 3T3/A31 fibroblasts.

Target description

68 kDa

Linkage

Replaces: 04-581

Physical form

Format: Purified
Protein G Purified
Purified mouse monoclonal IgG1 in buffer containing 0.1 M Tris-glycine, pH 7.4, 0.15 M NaCl, 0.05% sodium azide. Store at -20°C.

Storage and Stability

Stable for 1 year at -20ºC from date of receipt.

Handling Recommendations:
Upon first thaw, and prior to removing the cap, centrifuge the vial and gently mix the solution. Aliquot into microcentrifuge tubes and store at -20°C. Avoid repeated freeze/thaw cycles, which may damage IgG and affect product performance. Note: Variability in freezer temperatures below -20°C may cause glycerol-containing solutions to become frozen during storage.

Analysis Note

Control
Positive Antigen Control: Catalog #12-305, 3T3/A31 lysate. Add 2.5 μL of 2-mercapto-ethanol/100 μL of lysate and boil for 5 minutes to reduce the preparation. Load 20 μg 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 1

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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J D Hildebrand et al.
Molecular biology of the cell, 6(6), 637-647 (1995-06-01)
Focal adhesion kinase (pp125FAK or FAK) and paxillin colocalize with integrins in structures called focal adhesions. pp125FAK plays an important role in the transmission of integrin-induced cytoplasmic signals. Paxillin has also been implicated in cell signaling by virtue of its
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Promoting endothelial cell (EC) migration is important not only for therapeutic angiogenesis, but also for accelerating re-endothelialization after vessel injury. Several recent studies have shown that inhibition of protein tyrosine phosphatase 1B (PTP1B) may promote EC migration and angiogenesis by

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