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AB202866

Anti-MCPyV_gp3 large T antigen antibody [Ab3]

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(5 Publications)

Mouse Monoclonal MCPyV_gp3 large T antigen antibody. Suitable for WB, ICC/IF and reacts with Merkel cell polyomavirus samples. Cited in 5 publications.
2 Images
Western blot - Anti-MCPyV_gp3 large T antigen antibody [Ab3] (AB202866)
  • WB

Lab

Western blot - Anti-MCPyV_gp3 large T antigen antibody [Ab3] (AB202866)

This blot was produced using a 4-12% Bis-tris under the MOPS buffer system. The gel was run at 200V for 55 minutes before being transferred onto a Nitrocellulose membrane at 30V for 70 minutes. The membrane was blocked for an hour using 5% milk before ab202866 and ab181602 (Rabbit anti-GAPDH loading control) were incubated overnight at 4°C at a 0.5ug/ml concentration and 1/20000 dilution respectively. Antibody binding was detected using Goat anti-Mouse IgG H&L (IRDye® 800CW) preadsorbed (ab216772) and Goat anti-Rabbit IgG H&L (IRDye® 680RD) preadsorbed (ab216777) secondary antibodies at 1/20000 dilution for 1 hour at room temperature before imaging.

All lanes:

Western blot - Anti-MCPyV_gp3 large T antigen antibody [<a href='/en-us/products/unavailable/scavenging-receptor-sr-bi-antibody-ab3'>ab3</a>] (ab202866) at 0.5 µg/mL

Lane 1:

MKL-1 whole cell lysate at 20 µg

Lane 2:

HeLa whole cell lysate at 20 µg

Lane 3:

HEK293 whole cell lysate at 20 µg

Observed band size: 48 kDa

false

Immunocytochemistry/ Immunofluorescence - Anti-MCPyV_gp3 large T antigen antibody [Ab3] (AB202866)
  • ICC/IF

Lab

Immunocytochemistry/ Immunofluorescence - Anti-MCPyV_gp3 large T antigen antibody [Ab3] (AB202866)

ab202866 staining MCPyV_gp3 large T antigen in MKL-1 cells. The cells were fixed with 4% PFA (10min), permeabilized with 0.1%PBS-Tween for 5 minutes and then blocked with 1% BSA/10% normal goat serum/0.3M glycine in 0.1%PBS-Tween for 1h. The cells were then incubated overnight at +4°C with ab202866 at 5μg/ml and ab6046, Rabbit polyclonal to beta Tubulin - Loading Control, at 1/1000 dilution. Cells were then incubated with ab150117, Goat Anti-Mouse IgG H&L (Alexa Fluor® 488) at 1/1000 dilution (shown in green) and ab150080, Goat polyclonal Secondary Antibody to Rabbit IgG - H&L (Alexa Fluor® 594) at 1/1000 dilution (shown in pseudocolor red). Nuclear DNA was labelled with DAPI (shown in blue).

Image was taken with a confocal microscope (Leica-Microsystems, TCS SP8).

  • Carrier free

    Anti-MCPyV_gp3 large T antigen antibody [Ab3] - BSA and Azide free

Key facts

Host species

Mouse

Clonality

Monoclonal

Clone number

Ab3

Isotype

IgG1

Light chain type

kappa

Carrier free

No

Reacts with

Merkel cell polyomavirus

Applications

WB, ICC/IF

applications

Immunogen

The exact immunogen used to generate this antibody is proprietary information.

Epitope

The epitope for monoclonal Ab3 is between amino acid residues 79 and 260 of MCPyV large T antigen. Ab3 does not bind to MCPyV small T antigen (PubMed ID: 23114601).

Reactivity data

{ "title": "Reactivity Data", "filters": { "stats": ["", "Species", "Dilution Info", "Notes"], "tabs": { "all-applications": {"fullname" : "All Applications", "shortname": "All Applications"}, "WB" : {"fullname" : "Western blot", "shortname":"WB"}, "ICCIF" : {"fullname" : "Immunocytochemistry/ Immunofluorescence", "shortname":"ICC/IF"} }, "product-promise": { "all": "all", "testedAndGuaranteed": "tested", "guaranteed": "expected", "predicted": "predicted", "notRecommended": "not-recommended" } }, "values": { "Merkel cell polyomavirus": { "WB-species-checked": "testedAndGuaranteed", "WB-species-dilution-info": "0.25-0.5 µg/mL", "WB-species-notes": "<p></p>", "ICCIF-species-checked": "testedAndGuaranteed", "ICCIF-species-dilution-info": "5 µg/mL", "ICCIF-species-notes": "<p></p>" } } }

Product details

Want a custom formulation?
This antibody clone is manufactured by Abcam. If you require a custom buffer formulation or conjugation for your experiments, please contact orders@abcam.com

Properties and storage information

Form
Liquid
Purification technique
Affinity purification
Storage buffer
Preservative: 0.02% Sodium azide Constituents: PBS
Shipped at conditions
Blue Ice
Appropriate short-term storage duration
1-2 weeks
Appropriate short-term storage conditions
+4°C
Appropriate long-term storage conditions
-20°C
Aliquoting information
Upon delivery aliquot
Storage information
Avoid freeze / thaw cycle

Supplementary information

This supplementary information is collated from multiple sources and compiled automatically.

MCPyV_gp3 large T antigen also known as Merkel cell polyomavirus large T antigen is an important protein involved in the viral replication and transformation processes of Merkel cell polyomavirus (MCPyV). This antigen has an approximate mass of 90 kDa and is primarily expressed in cells infected by MCPyV. The large T antigen is named for its ability to bind to and inactivate tumor suppressor proteins which plays a role in the virus's oncogenic potential.
Biological function summary

The large T antigen serves as a multifunctional protein involved in viral replication cell cycle regulation and DNA damage response. Its function as a viral oncoprotein places it in the heart of tumor development processes. Large T antigen forms part of a complex with host cellular proteins assisting in the disruption of normal cellular controls that prevent tumor formation. This disruption is achieved by binding to cellular tumor suppressors such as p53 and retinoblastoma (Rb) proteins.

Pathways

The large T antigen is involved in cell cycle regulation and tumorigenesis pathways. It plays a substantial role in interfering with the Rb pathway which regulates cell cycle progression. This antigen also impacts the p53 pathway by binding and inactivating the p53 protein preventing apoptosis and contributing to uncontrolled cell proliferation. Both pathways are tightly regulated processes that when dysregulated contribute to oncogenesis.

The large T antigen of MCPyV is closely associated with Merkel cell carcinoma a rare but aggressive skin cancer. This cancer frequently arises from the integration of MCPyV DNA into the host genome and the expression of the large T antigen is a critical factor in these cancerous cells. Contacts with host proteins like p53 and Rb underline the antigen's role in the oncogenic processes leading to cancer development. Additionally research suggests potential associations with other disorders related to immune evasion given its role in manipulating host cellular machinery.

Product protocols

For this product, it's our understanding that no specific protocols are required. You can visit:

Publications (5)

Recent publications for all applications. Explore the full list and refine your search

The Journal of investigative dermatology 137:819-827 PubMed27815175

2016

Polyomavirus-Negative Merkel Cell Carcinoma: A More Aggressive Subtype Based on Analysis of 282 Cases Using Multimodal Tumor Virus Detection.

Applications

IHC-P

Species

Unspecified reactive species

Ata S Moshiri,Ryan Doumani,Lola Yelistratova,Astrid Blom,Kristina Lachance,Michi M Shinohara,Martha Delaney,Oliver Chang,Susan McArdle,Hannah Thomas,Maryam M Asgari,Meei-Li Huang,Stephen M Schwartz,Paul Nghiem

Cancer research 75:1068-79 PubMed25596282

2015

Tumorigenic activity of merkel cell polyomavirus T antigens expressed in the stratified epithelium of mice.

Applications

WB

Species

Unspecified reactive species

Megan E Spurgeon,Jingwei Cheng,Roderick T Bronson,Paul F Lambert,James A DeCaprio

The Journal of investigative dermatology 134:507-517 PubMed23962809

2013

MicroRNA expression patterns related to merkel cell polyomavirus infection in human merkel cell carcinoma.

Applications

IHC-P

Species

Unspecified reactive species

Hong Xie,Linkiat Lee,Stefano Caramuta,Anders Höög,Nanna Browaldh,Viveca Björnhagen,Catharina Larsson,Weng-Onn Lui

Journal of virology 87:6118-26 PubMed23514892

2013

Merkel cell polyomavirus large T antigen has growth-promoting and inhibitory activities.

Applications

WB

Species

Unspecified reactive species

Jingwei Cheng,Orit Rozenblatt-Rosen,Kelly G Paulson,Paul Nghiem,James A DeCaprio

The Journal of clinical investigation 122:4645-53 PubMed23114601

2012

Improved detection suggests all Merkel cell carcinomas harbor Merkel polyomavirus.

Applications

WB, IHC-P

Species

Unspecified reactive species, Unspecified reactive species

Scott J Rodig,Jingwei Cheng,Jacek Wardzala,Andrew DoRosario,Jessica J Scanlon,Alvaro C Laga,Alejandro Martinez-Fernandez,Justine A Barletta,Andrew M Bellizzi,Subhashini Sadasivam,Dustin T Holloway,Dylan J Cooper,Thomas S Kupper,Linda C Wang,James A DeCaprio
View all publications

Product promise

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