Product nameAnti-MED19 antibody
See all MED19 primary antibodies
Predicted to work with: Mouse, Human
Synthetic peptide corresponding to Human MED19 aa 150-250 (C terminal) conjugated to keyhole limpet haemocyanin.
(Peptide available as
Storage instructionsShipped at 4°C. Store at +4°C short term (1-2 weeks). Upon delivery aliquot. Store at -20°C or -80°C. Avoid freeze / thaw cycle.
Storage bufferPreservative: 0.02% Sodium Azide
Constituents: 1% BSA, PBS, pH 7.4
Concentration information loading...
PurityImmunogen affinity purified
This antibody gave a positive result in ELISA against the immunizing peptide (ab58444).
Not yet tested in other applications.
Optimal dilutions/concentrations should be determined by the end user.
FunctionComponent of the Mediator complex, a coactivator involved in the regulated transcription of nearly all RNA polymerase II-dependent genes. Mediator functions as a bridge to convey information from gene-specific regulatory proteins to the basal RNA polymerase II transcription machinery. Mediator is recruited to promoters by direct interactions with regulatory proteins and serves as a scaffold for the assembly of a functional preinitiation complex with RNA polymerase II and the general transcription factors.
Sequence similaritiesBelongs to the Mediator complex subunit 19 family.
- Information by UniProt
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ICC/IF image of ab49271 stained MCF7 cells. The cells were 4% PFA fixed (10 min), permabilised in 0.1% PBS-Tween (20 min) and incubated with the antibody (ab49271, 1µg/ml) for 1h at room temperature. 1%BSA / 10% normal goat serum / 0.3M glycine was used to block non-specific protein-protein interactions. The secondary antibody (green) was Alexa Fluor® 488 goat anti-rabbit IgG (H+L) used at a 1/1000 dilution for 1h. Alexa Fluor® 594 WGA was used to label plasma membranes (red). DAPI was used to stain the cell nuclei (blue). This antibody also gave a positive IF result in HeLa, Hek293 and HepG2 cells fixed in 4% PFA at 1ug/ml. However, this Fast-Track antibody is not yet fully characterised. This image represents inconclusive preliminary data.
All lanes : Anti-MED19 antibody (ab49271) at 1 µg
Lane 1 : MCF7 (Human breast adenocarcinoma cell line) Whole Cell Lysate
Lane 2 : HeLa (Human epithelial carcinoma cell line) Whole Cell Lysate
Lane 3 : U2OS (Human osteosarcoma cell line) Whole Cell Lysate
Lysates/proteins at 10 µg per lane.
All lanes : Goat Anti-Rabbit IgG H&L (HRP) preadsorbed (ab97080) at 1/5000 dilution
Predicted band size: 26 kDa
Observed band size: 20 kDa why is the actual band size different from the predicted?
Additional bands at: 50 kDa. We are unsure as to the identity of these extra bands.
ab49271 has not yet been referenced specifically in any publications.