The application notes include recommended starting dilutions; optimal dilutions/concentrations should be determined by the end user.
Use a concentration of 1 µg/ml. Perform heat mediated antigen retrieval before commencing with IHC staining protocol.
Use a concentration of 1 µg/ml.
Use a concentration of 1 µg/ml. Detects a band of approximately 169 kDa (predicted molecular weight: 169 kDa).
RelevanceVprBP may act as a receptor for CUL4-DDB1 ubiquitin ligase complex. In case of HIV1 infection, this protein is recruited by HIV1 VPR protein which is believed to result in an arrest of the cell cyccle in the G2 phase.
ICC/IF image of ab75458 stained HeLa cells. The cells were 100% methanol fixed (5 min) and then incubated in 1%BSA / 10% normal goat serum / 0.3M glycine in 0.1% PBS-Tween for 1h to permeabilise the cells and block non-specific protein-protein interactions. The cells were then incubated with the antibody (ab75458, 1µg/ml) overnight at +4°C. 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) at a 1/200 dilution for 1h. DAPI was used to stain the cell nuclei (blue) at a concentration of 1.43µM. This antibody also gave a positive result in 100% methanol fixed (5 min) Hek293, HepG2 and MCF7 cells at 1µg/ml, and in 4% PFA fixed (10 min) HeLa and MCF7 cells at 1µg/ml.
IHC image of VPRBP staining in normal human liver formalin fixed paraffin embedded tissue section, performed on a Leica BondTM system using the standard protocol F. The section was pre-treated using heat mediated antigen retrieval with sodium citrate buffer (pH6, epitope retrieval solution 1) for 20 mins. The section was then incubated with ab75458 at 1ug/ml, for 15 mins at room temperature and detected using an HRP conjugated compact polymer system. DAB was used as the chromogen. The section was then counterstained with haematoxylin and mounted with DPX.
References for Anti-VPRBP antibody (ab75458)
This product has been referenced in:
Cassiday PA et al. Understanding the molecular manipulation of DCAF1 by the lentiviral accessory proteins Vpr and Vpx. Virology476:19-25 (2015).
Read more (PubMed: 25499532) »
Kogan M et al. Inhibition of NF-?B activity by HIV-1 Vpr is dependent on Vpr binding protein. J Cell Physiol : (2012).
Read more (PubMed: 23001849) »