Anti-CBX4抗体
参阅全部 CBX4 一抗
兔多克隆抗体to CBX4
Rabbit
In immunofluoresence, this antibody detects the expected discrete nuclear structure that is termed the PcG body, corresponding to the known localisation of PC2. The antibody has been successfully used to detect FLAG-tagged transfected hPC2 (see picture). It detects a weak band that probably corresponds to endogenous PC2, however, a strong secondary band is also seen at 50kD in all cell lines thus far tested. This suggests that the antibody also reacts with another ubiquitous highly expressed protein.
适用于: ICC/IF, WBmore details
与反应: Human
Synthetic peptide:
GLQDSSTDNRAKLC
, corresponding to amino acids 95 - 107 of Human PC2.
PC2 and other members of the Drosophila Polycomb group gene family are part of a cellular memory system that is responsible for the inheritance of gene activity by progeny cells.
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Liquid
Shipped at 4°C. Upon delivery aliquot and store at -20°C or -80°C. Avoid repeated freeze / thaw cycles.
pH: 7.2
Preservative: 0.01% Sodium azide
Constituents: 0.424% Potassium phosphate solution, 0.88% Sodium chloride
浓度
100 µg 浓度为 1.36 mg/ml
Immunogen affinity purified
This is an affinity purified antibody produced by immunoaffinity chromatography using the immunizing peptide after immobilization to a solid phase.
PC2 and other members of the Drosophila Polycomb group gene family are part of a cellular memory system that is responsible for the inheritance of gene activity by progeny cells.
多克隆
IgG
Abpromise™承诺保证使用ab4189于以下的经测试应用
“应用说明”部分 下显示的仅为推荐的起始稀释度;实际最佳的稀释度/浓度应由使用者检定。
应用 | Ab评论 | 说明 |
---|---|---|
ICC/IF | 1/100 - 1/400. | |
WB | 1/1000 - 1/4000. Detects a band of approximately 82 kDa (predicted molecular weight: 61 kDa). |
Entrez Gene: 8535 Human
Omim: 603079 Human
SwissProt: O00257 Human
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Immunocytochemistry/ Immunofluorescence - Anti-CBX4 antibody (ab4189)This image is courtesy of Luke Hughes-Davies and Rhiannon Jade, Gurdon Institute, Cambridge, UK
Immunofluorescent imaging of human cells (U2OS) with ab4189 reveals the expected discrete nuclear structure that is termed the PcG body corresponding to the known localisation of PC2. This corresponds to results seen in Satijn et al.
IF was performed with a standard paraformaldehyde technique (fixed in PBS buffered PFH 4% for 5 minutes, permeabilised with 0.5% triton-PBS for 5 minutes, blocked with 5% milk / 0.2% tween for one hour. Primary antibody used at 1/200 in 5% milk / 0.2% TWEEN for one hour, secondary antibody for 30 minutes. All blocking and incubation steps carried out at 37 degrees C. Nuclei counterstained with Hoechst stain (blue).
Western blot - Anti-CBX4 antibody (ab4189)This image is courtesy of Dr Ari Melnick, Albert Einstein College of Medicine
All lanes : Anti-CBX4 antibody (ab4189)
Lane 1 : HEK 293 lysate over-expressing DDDDK tagged hPC2
Lane 2 : HEK 293 lysate
Predicted band size: 61 kDa
Observed band size: 75 kDawhy is the actual band size different from the predicted?
Additional bands at: 30 kDa (possible non-specific secondary antibody binding), 49 kDa (possible non-specific secondary antibody binding), 65 kDa (possible non-specific secondary antibody binding)
ab4189 specifically recognises over expressed DDDDK tagged hPC2 in HEK293 cells (lane1). The lower bands are assigned to degradation products.