Rabbit Recombinant Monoclonal LT antibody. Suitable for WB, ICC/IF, IP, Flow Cyt (Intra) and reacts with Simian Virus 40 samples. Cited in 2 publications.
pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
WB | ICC/IF | IP | Flow Cyt (Intra) | |
---|---|---|---|---|
Simian Virus 40 | Tested | Tested | Tested | Tested |
Species | Dilution info | Notes |
---|---|---|
Species Simian Virus 40 | Dilution info 1/1000 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Simian Virus 40 | Dilution info 1/50 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Simian Virus 40 | Dilution info 1/30 | Notes - |
Species | Dilution info | Notes |
---|---|---|
Species Simian Virus 40 | Dilution info 1/500 | Notes - |
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Isoform large T antigen is a key early protein essential for both driving viral replication and inducing cellular transformation. Plays a role in viral genome replication by driving entry of quiescent cells into the cell cycle and by autoregulating the synthesis of viral early mRNA. Displays highly oncogenic activities by corrupting the host cellular checkpoint mechanisms that guard cell division and the transcription, replication, and repair of DNA. Participates in the modulation of cellular gene expression preceeding viral DNA replication. This step involves binding to host key cell cycle regulators retinoblastoma protein RB1/pRb and TP53. Induces the disassembly of host E2F1 transcription factors from RB1, thus promoting transcriptional activation of E2F1-regulated S-phase genes. Inhibits host TP53 binding to DNA, abrogating the ability of TP53 to stimulate gene expression. Plays the role of a TFIID-associated factor (TAF) in transcription initiation for all three RNA polymerases, by stabilizing the TBP-TFIIA complex on promoters. Initiates viral DNA replication and unwinding via interactions with the viral origin of replication. Binds two adjacent sites in the SV40 origin. The replication fork movement is facilitated by Large T antigen helicase activity. Has processive 3'-5' DNA helicase activity which requires a short 3' single-stranded region and ATP; other (d)NTPs can partially replace ATP (PubMed:2826443, PubMed:2826446). Activates the transcription of viral late mRNA, through host TBP and TFIIA stabilization. Interferes with histone deacetylation mediated by HDAC1, leading to activation of transcription. May inactivate the growth-suppressing properties of the E3 ubiquitin ligase CUL7. Isoform 17kT antigen targets host RBL2 for degradation and promotes cell proliferation. Transactivates host cyclin A promoter through its J domain. Unwinds G4 DNA (planar arrays of 4 guanine bases stabilized by hydrogen bonds, parallel and antiparallel arrays were tested); unwinding occurs in the 3'-5' direction, requires a 3' single-stranded end and hydrolyzable ATP (PubMed:9016557).
SV40 T-antigen
Large T antigen, LT, LT-AG, DNA 3'-5' helicase large T antigen
Rabbit Recombinant Monoclonal LT antibody. Suitable for WB, ICC/IF, IP, Flow Cyt (Intra) and reacts with Simian Virus 40 samples. Cited in 2 publications.
pH: 7.2 - 7.4
Preservative: 0.01% Sodium azide
Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
This product is a recombinant monoclonal antibody, which offers several advantages including:
For more information, read more on recombinant antibodies.
We have tested this species and application combination and it works. It is covered by our product promise.
We have not tested this specific species and application combination in-house, but expect it will work. It is covered by our product promise.
This species and application combination has not been tested, but we predict it will work based on strong homology. However, this combination is not covered by our product promise.
We do not recommend this combination. It is not covered by our product promise.
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In the unlikely event of one of our products not working as expected, you are covered by our product promise.
Full details and terms and conditions can be found here:
Terms & Conditions.
Blocking buffer and concentration: 5% NFDM/TBST
Diluting buffer and concentration: 5% NFDM/TBST
All lanes: Western blot - Anti-SV40 T-antigen antibody [EPR22694-148] (ab234426) at 1/5000 dilution
Lane 1: 293T (SV40 transfected human embryonic kidney epithelial cell) whole cell lysate prepared in RIPA lysis method at 20 µg
Lane 2: 293T (SV40 transfected human embryonic kidney epithelial cell) whole cell lysate prepared in 1%SDS Hot lysis method at 20 µg
Lane 3: HEK-293 (Human embryonic kidney epithelial cell) whole cell lysate prepared in RIPA lysis method at 20 µg
Lane 4: HEK-293 (Human embryonic kidney epithelial cell) whole cell lysate prepared in 1%SDS Hot lysis method at 20 µg
All lanes: Western blot - Goat Anti-Rabbit IgG H&L (HRP) (Goat Anti-Rabbit IgG H&L (HRP) ab97051) at 1/100000 dilution
Observed band size: 90 kDa
Exposure time: 40s
Immunofluorescent analysis of 4% paraformaldehyde-fixed, 0.1% Triton X-100 permeabilized HEK-293T (human embryonic kidney epithelial cell) cells labeling SV40 T-antigen with ab234426 at 1/50 dilution, followed by an AlexaFluor®488 Goat anti-Rabbit secondary (Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) ab150077) (Green) at 1/1000 dilution. Confocal image showing nuclear and weak cytoplasmic staining in HEK-293T cells. The nuclear counterstain is DAPI (Blue). Tubulin was stained using an Anti-alpha Tubulin antibody [DM1A] - Microtubule Marker (Alexa Fluor® 594)(Red) at 1/200 dilution.
Negative control: HEK-293(PMID: 15175262).
SV40 T-antigen was immunoprecipitated from 0.35 mg HEK-293T (SV40 transfected human embryonic kidney epithelial cell) whole cell lysate with ab234426 at 1/30 dilution. Western blot was performed on the immunoprecipitate using ab234426 at 1/1000 dilution. VeriBlot for IP Detection Reagent (HRP) (VeriBlot for IP Detection Reagent (HRP) ab131366) was used as the secondary antibody at 1/5000 dilution.
Lane 1: HEK-293T (SV40 transfected) whole cell lysate 10 μg (input).
Lane 2: ab234426 IP in HEK-293T (SV40 transfected) whole cell lysate.
Lane 3: Rabbit monoclonal IgG (Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab172730) instead of ab234426 in HEK-293T whole cell lysate.
Blocking and dilution buffer and concentration: 5% NFDM/TBST.
Exposure time: 3 seconds.
All lanes: Immunoprecipitation - Anti-SV40 T-antigen antibody [EPR22694-148] (ab234426)
Intracellular flow cytometric analysis of 4% paraformaldehyde-fixed HEK-293 (human embryonic kidney epithelial cell, Left) / 293T (SV40 transfected human embryonic kidney epithelial cell, Right) cells labeling SV40 T-antigen with ab234426 at 1/500 dilution (red), compared with aRabbit monoclonal IgG isotype control (Rabbit IgG, monoclonal [EPR25A] - Isotype Control ab172730,Black) and an unlabeled control (cells without incubation with primary antibody and secondary antibody) (blue). Goat anti rabbit IgG (Alexa Fluor® 488, Goat Anti-Rabbit IgG H&L (Alexa Fluor® 488) ab150077) was used as the secondary antibody at 1/2000 dilution.
Negative control: HEK-293.
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