Anti-Cdk8 antibody [EPR21005] (ab229192)
Key features and details
- Produced recombinantly (animal-free) for high batch-to-batch consistency and long term security of supply
- Rabbit monoclonal [EPR21005] to Cdk8
- Suitable for: WB, IP
- Knockout validated
- Reacts with: Human
Overview
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Product name
Anti-Cdk8 antibody [EPR21005]
See all Cdk8 primary antibodies -
Description
Rabbit monoclonal [EPR21005] to Cdk8 -
Host species
Rabbit -
Tested Applications & Species
See all applications and species dataApplication Species IP HumanWB Human -
Immunogen
Recombinant fragment. This information is proprietary to Abcam and/or its suppliers.
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Positive control
- WB: Wild-type HeLa, Daudi, HAP1, HCT 116, K562 and SW480 whole cell lysates; Human testis lysate. IP: SW480 whole cell lysate.
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General notes
This product is a recombinant monoclonal antibody, which offers several advantages including:
- - High batch-to-batch consistency and reproducibility
- - Improved sensitivity and specificity
- - Long-term security of supply
- - Animal-free production
Our RabMAb® technology is a patented hybridoma-based technology for making rabbit monoclonal antibodies. For details on our patents, please refer to RabMAb® patents.
Properties
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Form
Liquid -
Storage instructions
Shipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C long term. Avoid freeze / thaw cycle. -
Storage buffer
pH: 7.2
Preservative: 0.01% Sodium azide
Constituents: PBS, 40% Glycerol (glycerin, glycerine), 0.05% BSA -
Concentration information loading...
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Purity
Protein A purified -
Clonality
Monoclonal -
Clone number
EPR21005 -
Isotype
IgG -
Research areas
Images
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All lanes : Anti-Cdk8 antibody [EPR21005] (ab229192) at 1/1000 dilution
Lane 1 : Wild-type HeLa cell lysate
Lane 2 : Cdk8 knockout HeLa cell lysate
Lane 3 : HAP1 cell lysate
Lane 4 : Daudi cell lysate
Lysates/proteins at 20 µg per lane.
Performed under reducing conditions.
Predicted band size: 53 kDaLanes 1-4: Merged signal (red and green). Green - ab229192 observed at 53 kDa. Red - loading control ab8245 observed at 37 kDa.
ab229192 Anti-Cdk8 antibody [EPR21005] was shown to specifically react with Cdk8 in wild-type HeLa cells. Loss of signal was observed when knockout cell line ab265087 (knockout cell lysate ab257885) was used. Wild-type and Cdk8 knockout samples were subjected to SDS-PAGE. ab229192 and Anti-GAPDH antibody [6C5] - Loading Control (ab8245) were incubated overnight at 4°C at 1 in 1000 dilution and 1 in 20000 dilution respectively. 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 in 20000 dilution for 1 hour at room temperature before imaging.
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Cdk8 was immunoprecipitated from 0.35 mg of SW480 (human colorectal adenocarcinoma cell line) whole cell lysate with ab229192 at 1/30 dilution. Western blot was performed from the immunoprecipitate using ab229192 at 1/1000 dilution. VeriBlot for IP Detection Reagent (HRP) (ab131366) was used for detection at 1/10,000 dilution.
Lane 1: SW480 whole cell lysate 10 μg (Input).
Lane 2: ab229192 IP in SW480 whole cell lysate.
Lane 3: Rabbit monoclonal IgG (ab172730) instead of ab229192 in SW480 whole cell lysate.Blocking and dilution buffer and concentration: 5% NFDM/TBST.
Exposure time: 3 minutes. -
All lanes : Anti-Cdk8 antibody [EPR21005] (ab229192) at 1/1000 dilution
Lane 1 : Human testis lysate
Lane 2 : K562 (human chronic myelogenous leukemia cell line from bone marrow ) whole cell lysate
Lysates/proteins at 10 µg per lane.
Secondary
Lane 1 : Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/20000 dilution
Lane 2 : Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/50000 dilution
Predicted band size: 53 kDa
Observed band size: 53 kDa
Exposure time: 58 secondsBlocking and dilution buffer: 5% NFDM/TBST.
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All lanes : Anti-Cdk8 antibody [EPR21005] (ab229192) at 1/1000 dilution
Lane 1 : Wild-type HAP1 whole cell lysate at 20 µg
Lane 2 : Cdk8 knockout HAP1 whole cell lysate at 20 µg
Lane 3 : HCT 116 (human colorectal carcinoma cell line) whole cell lysate at 10 µg
Lane 4 : SW480 (Human colorectal adenocarcinoma cell line) whole cell lysate at 10 µg
Secondary
All lanes : Goat Anti-Rabbit IgG H&L (HRP) (ab97051) at 1/100000 dilution
Predicted band size: 53 kDa
Observed band size: 53 kDa
Exposure time: 48 secondsBlocking and dilution buffer: 5% NFDM/TBST.
ab229192 was shown to specifically react with Cdk8 in wild-type HAP1 cells as signal was lost in Cdk8 knockout cells.
Wild-type and Cdk8 knockout samples were subjected to SDS-PAGE. ab229192 and ab181602 (Rabbit anti-GAPDH loading control) were incubated 1 hour at room temperature at 1/1000 dilution and 1/200,000 dilution respectively. Blots were developed with Goat Anti-Rabbit IgG, (H+L), Peroxidase conjugated (ab97051) secondary antibody at 1/100,000 dilution for 1 hour at room temperature before imaging. The blot was developed on a BIO-RAD® ChemiDoc™ MP instrument using the ECL technique.
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