Western blot analysis of BRCA1 was performed with 10 µg of HeLa cells transfected with Transfection Reagent alone (Lane 1), 100nM Non-Targeting control siRNA (Lane 2), or 100nM siRNA against BRCA1 (Lane 3). Proteins were resolved using a NuPAGE® Novex 4-12% Bis-Tris Gel (NP0322BOX), XCell SureLock™ Electrophoresis System (EI0002), and a protein size ladder. Proteins were wet transferred to a Pierce Nitrocellulose Membrane (Product # 88025) OR Pierce PVDF Membrane (Product # 88518) and blocked with Pierce Starting Block T20 (PBS) Blocking Buffer (37539) for 1 hour at room temperature. BRCA1 was detected at ~ 208 kDa using BRCA1 Mouse monoclonal antibody (Product # MA1-16618) diluted in Pierce Starting Block T20 (PBS) Blocking Buffer 4°C overnight on a rocking platform. Pierce Goat Anti-Mouse (product # 031437) HRP-Conjugated Antibodies at a 1:2500 dilution were used and chemiluminescent detection was performed using Pierce Supersignal West Dura Maximum Sensitivity Substrate (Product # 37071). Relative density of the bands normalized to Lamin A/C (74/65 kDa). BRCA1 Antibody (Product # MA1-16618) confirms silencing of BRCA1 expression.
|Tested species reactivity||Human|
|Host / Isotype||Mouse / IgG3, kappa|
|Immunogen||Human BRCA1 containing residues 1314-1864.|
|Storage buffer||tris glycine with 0.15M NaCl|
|Contains||0.05% sodium azide|
|Storage Conditions||-20° C, Avoid Freeze/Thaw Cycles|
|Tested Applications||Dilution *|
|Western Blot (WB)||2-4 µg/ml|
* 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.
Suggested positive control: U2OS and MCF-7 whole cell lysates.
This gene encodes a nuclear phosphoprotein that plays a role in maintaining genomic stability, and it also acts as a tumor suppressor. The encoded protein combines with other tumor suppressors, DNA damage sensors, and signal transducers to form a large multi-subunit protein complex known as the BRCA1-associated genome surveillance complex (BASC). This gene product associates with RNA polymerase II, and through the C-terminal domain, also interacts with histone deacetylase complexes. This protein thus plays a role in transcription, DNA repair of double-stranded breaks, and recombination. Mutations in this gene are responsible for approximately 40% of inherited breast cancers and more than 80% of inherited breast and ovarian cancers. Alternative splicing plays a role in modulating the subcellular localization and physiological function of this gene. Many alternatively spliced transcript variants, some of which are disease-associated mutations, have been described for this gene, but the full-length natures of only some of these variants has been described. A related pseudogene, which is also located on chromosome 17, has been identified.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.