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Western blot analysis of HisG was performed by loading 20 µg of whole cell extracts of untransfected HEK-293 cell lysate (lane1) and HEK-293 transiently over expressing HisG-RPS6 (lane2) using Novex® NuPAGE® 4-12 % Bis-Tris gel (NP0321BOX), Xcell SureLock™ Electrophoresis system (EI0002), Novex sharp Pre-stained Protein Standard (LC5800), and iBlot® Dry Blotting System (IB21001). Proteins were transferred to a nitrocellulose membrane and blocked with 5 % skim milk for at least 1 hour at room temperature. HisG was detected at ~35 kDa using HisG - HRP Mouse Monoclonal Antibody (R941-25) at a 1:1000 dilution in 2.5 % skim milk incubated for 1 hour on a rocking platform. Chemiluminescent detection was performed using Novex® ECL Chemiluminescent Substrate Reagent Kit (WP20005).
|Tested species reactivity||Tag|
|Published species reactivity||Not Applicable|
|Host / Isotype||Mouse / IgG2a|
|Immunogen||6x His synthetic peptide: -His-His-His-His-His-His-Gly|
|Storage Conditions||Store at 4°C short term. For long term storage, store at -20°C, avoiding freeze/thaw cycles.|
|Tested Applications||Dilution *|
|ELISA (ELISA)||Assay Dependent|
|Western Blot (WB)||1:1000-1:5000|
* Suggested working dilutions are given as a guide only. It is recommended that the user titrate the product for use in their own experiment using appropriate negative and positive controls.
|Western Blot (WB)||See 1 publications below|
This antibody is designed to specifically detect recombinant proteins containing the seven amino acid 6xHis-Gly epitope. This epitope is present in many expression vectors encoding an N-terminal 6xHis tag. The HisG antibody recognizes the following sequence: -His-His-His-His-His-His-Gly.
This product contains enough material for 25 Western blots. It has been tested against purified Positope™ control protein (5ng). The Positope™ control protein is a 53 kDa recombinant protein that contains seven epitope tags, including His(C-term), HisG, c-myc, and V5. For Western blot, dilute in PBS containing 0.05% Tween-20 and 5% nonfat, dry milk (PBSTM).
Using chemiluminescence as the detection method, no cross-reactivity has been observed in bacterial lysates. In mammalian lysates, a few cross-reactive proteins have been observed upon overexposure of blots.
Epitope tags provide a method to localize gene products in a variety of cell types, study the topology of proteins and protein complexes, identify associated proteins, and characterize newly identified, low abundance or poorly immunogenic proteins when protein specific antibodies are not available. Expression of recombinant proteins in E. coli as a fusion protein with neighboring histidine residues is one of the most popular methods of epitope tags. The affinity of the histidine-tag motif to Ni2+ by chelation is strong and selective enough to enable purification of the protein to homogeneity by affinity chromatography on a Ni2+-NTA adsorbent.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
|Not Applicable||Not Cited||
A systems genetics approach implicates USF1, FADS3, and other causal candidate genes for familial combined hyperlipidemia.
R941-25 was used in western blot to identify causal candidate genes for Mexican Familial Combined Hyperlipidemia-related traits
|Plaisier CL,Horvath S,Huertas-Vazquez A,Cruz-Bautista I,Herrera MF,Tusie-Luna T,Aguilar-Salinas C,Pajukanta P||PLoS genetics (5:null)||2009|