Synthetic peptide (the amino acid sequence is considered to be commercially sensitive) corresponding to Human p57 Kip2 aa 50-150 (N terminal).
WB: HeLa, Jurkat and human, mouse and rat brain lysates.
IHC-P: human breast carcinoma and placenta tissues.
ICC/IF: HeLa cells.
IP: HeLa cells.
This product is a recombinant rabbit monoclonal antibody.
We are constantly working hard to ensure we provide our customers with best in class antibodies. As a result of this work we are pleased to now offer this antibody in purified format. We are in the process of updating our datasheets. The purified format is designated ‘PUR’ on our product labels. If you have any questions regarding this update, please contact our Scientific Support team.
Produced using Abcam’s RabMAb® technology. RabMAb® technology is covered by the following U.S. Patents, No. 5,675,063 and/or 7,429,487.
FunctionPotent tight-binding inhibitor of several G1 cyclin/CDK complexes (cyclin E-CDK2, cyclin D2-CDK4, and cyclin A-CDK2) and, to lesser extent, of the mitotic cyclin B-CDC2. Negative regulator of cell proliferation. May play a role in maintenance of the non-proliferative state throughout life.
Tissue specificityExpressed in the heart, brain, lung, skeletal muscle, kidney, pancreas and testis. High levels are seen in the placenta while low levels are seen in the liver.
Involvement in diseaseDefects in CDKN1C are a cause of Beckwith-Wiedemann syndrome (BWS) [MIM:130650]. BWS is a genetically heterogeneous disorder characterized by anterior abdominal wall defects including exomphalos (omphalocele), pre- and postnatal overgrowth, and macroglossia. Additional less frequent complications include specific developmental defects and a predisposition to embryonal tumors. Note=Defects in CDKN1C are involved in tumor formation.
Immunocytochemistry/Immunofluorescence analysis of HeLa cells labelling p57 Kip2 with purified ab75974 at 1/250. Cells were fixed with 4% paraformaldehyde and permeabilized with 0.1% Triton X-100. ab150077, an Alexa Fluor® 488-conjugated goat anti-rabbit IgG (1/500) was used as the secondary antibody. DAPI (blue) was used as the nuclear counterstain.
Control: primary antibody (1/250) and secondary antibody, ab150120, an Alexa Fluor® 594-conjugated goat anti-mouse IgG (1/500).
Western blot - Anti-p57 Kip2 antibody [EP2515Y] (ab75974)
Anti-p57 Kip2 antibody [EP2515Y] (ab75974) at 1/500 dilution (purified) + Human brain at 20 µg
Secondary HRP-conjugated anti-rabbit IgG, specific to the non-reduced form of IgG at 1/1000 dilution
Immunohistochemistry (Formalin/PFA-fixed paraffin-embedded sections) analysis of human placenta tissue labelling p57 Kip2 with purified ab75974 at 1/250. Heat mediated antigen retrieval was performed using Tris/EDTA buffer pH 9. ab97051, a HRP-conjugated goat anti-rabbit IgG (H+L) was used as the secondary antibody (1/500). Negative control using PBS instead of primary antibody. Counterstained with hematoxylin.
ab75974 staining p57 Kip2 in HeLa cells treated with dexamethasone (ab120743), by ICC/IF. Increase in p57 Kip2 expression correlates with increased concentration of dexamethasone as described in literature. The cells were incubated at 37°C for 24h in media containing different concentrations of ab120743 (dexamethasone) in DMSO, fixed with 4% formaldehyde for 10 minutes at room temperature and blocked with PBS containing 10% goat serum, 0.3 M glycine, 1% BSA and 0.1% tween for 2h at room temperature. Staining of the treated cells with unpurified ab75974 (5 µg/ml) was performed overnight at 4°C in PBS containing 1% BSA and 0.1% tween. A DyLight 488 goat anti-rabbit polyclonal antibody (ab96899) at 1/250 dilution was used as the secondary antibody. Nuclei were counterstained with DAPI and are shown in blue.
ab75974 (purified) at 1/30 immunoprecipitating p57 Kip2 in HeLa cells treated with dexamethasone (Lane 1). Lane 2 - PBS. For western blotting, a HRP-conjugated anti-rabbit IgG, specific to the non-reduced form of IgG was used as the secondary antibody (1/1500).
Blocking buffer and concentration: 5% NFDM/TBST.
Diluting buffer and concentration: 5% NFDM /TBST.
References for Anti-p57 Kip2 antibody [EP2515Y] (ab75974)
This product has been referenced in:
Li H et al. Frs2a and Shp2 signal independently of Gab to mediate FGF signaling in lens development. J Cell Sci127:571-82 (2014).
Read more (PubMed: 24284065) »
Sun MM & Beier F Liver X Receptor activation delays chondrocyte hypertrophy during endochondral bone growth. Osteoarthritis Cartilage22:996-1006 (2014).
Read more (PubMed: 24852699) »