BRCA2 antibody (AA 21-130)

Catalog No. ABIN673434

Product Details anti-BRCA2 Antibody

Target: BRCA2 (Breast Cancer 2, Early Onset (BRCA2))

Binding Specificity: AA 21-130

Reactivity: Human

Host: Rabbit

Clonality: Polyclonal

Conjugate: This BRCA2 antibody is un-conjugated

Application: Western Blotting (WB), ELISA, Immunohistochemistry (Paraffin-embedded Sections) (IHC (p)), Immunohistochemistry (Frozen Sections) (IHC (fro)), Immunofluorescence (Cultured Cells) (IF (cc)), Immunofluorescence (Paraffin-embedded Sections) (IF (p))

Cross-Reactivity: Human

Predicted Reactivity: Mouse,Rat,Dog,Cow,Horse,Chicken,Rabbit

Purification: Purified by Protein A.

Immunogen: KLH conjugated synthetic peptide derived from human BRCA2

Isotype: IgG

Application Details

Application Notes: WB 1:300-5000
ELISA 1:500-1000
IHC-P 1:200-400
IHC-F 1:100-500
IF(IHC-P) 1:50-200
IF(IHC-F) 1:50-200
IF(ICC) 1:50-200

Restrictions: For Research Use only

Independent Validation (WB)

Validation #029807 (Western Blotting)

by: Alamo Laboratories Inc

No.: #029807

Date: 08/26/2014

Lot Number: 101020

Method validated: Western Blotting

Positive Control: MCF7 cells

Negative Control: [CAPAN1 cells] (http://www.pnas.org/content/98/15/8644.full.pdf)

Notes: A strong band was observed in the positive control sample at the correct molecular weight. No bands were observed in the negative control sample.

Validation Images

Figure 1: Western Blot for BRCA2. Arrowhead indicates the expected molecular weight of ~384 kDa.

Full Methods

Primary Antibody:

• Antigen: Breast Cancer 2, Early Onset (BRCA2)
• Catalog number: ABIN673434
• Lot number: 101020
• Antibody Dilution: 1:200

Secondary Antibody:

• Antigen: Goat Anti-Rabbit IgG (H + L)-HRP Conjugate
• Lot number: L170-6515
• Antibody Dilution: 1:10,000

Full Protocol:

• 1. The cell extracts were heated at 95°C for 5 minutes in 1X SDS Sample Buffer containing 1% SDS and 1.25% β-mercaptoethanol.
• 2. 15 μl of heated culture-media were loaded and resolved on 8-16% SDS-polyacrylamide gel.
• 3. The Thermo Scientific - Spectra Multicolor Broad Range (Cat # 26634) were used as molecular mass markers.
• 4. Proteins were then transferred onto PVDF membrane by wet transfer and protein transfer was confirmed with Ponceau-S staining.
• 5. The PVDF membrane was incubated with 25 ml of blocking buffer [Tris Buffered Saline, pH 7.4 plus 0.1% TW20 (TBST)] containing 5% (W/V) BSA at room temperature for 1 hour.
• 6. The membrane was rinsed with TBST once.
• 7. The membrane was immersed with the protein side up in the primary antibody solution in TBST containing 5% (W/V) BSA and incubated for 10 hours at 4°C.
• 8. The membrane was rinsed in TBST thrice for 5 minutes each.
• 9. The membrane was incubated in the HRP-conjugated secondary antibody solution in TBST containing 5% (W/V) BSA and incubated for 1 hour at room temperature (~26°C) with gentle agitation.
• 10. The membrane was rinsed thrice TBST thrice for 5 minutes each.
• 11. The membrane was rinsed in TBS twice for 30 seconds each.
• 12. Signals were detected with ECL-2 Substrate. The blot was scanned for 5 minutes.
• 13. The membrane was rinsed three times TBST.
• 14. Incubated in Acidic Glycine Stripping Buffer at room temperature with gentle agitation for 3 times, 10 minutes each.
• 15. The membrane was washed in TBST 2 times for 10 minutes each.
• 16. Repeated Steps 5-12 with the loading control antibody (for Anti-actin) and its matching secondary antibody.

Experimental Notes: - No experimental challenges noted.

Handling

Format: Liquid

Concentration: 1 μg/μL

Buffer: 0.01M TBS( pH 7.4) with 1 % BSA, 0.02 % Proclin300 and 50 % Glycerol.

Preservative: ProClin

Precaution of Use: This product contains ProClin: a POISONOUS AND HAZARDOUS SUBSTANCE, which should be handled by trained staff only.

Storage: 4 °C,-20 °C

Storage Comment: Shipped at 4°C. Store at -20°C for one year. Avoid repeated freeze/thaw cycles.

Expiry Date: 12 months

Target Details for BRCA2

Target: BRCA2 (Breast Cancer 2, Early Onset (BRCA2))

Alternative Name: BRCA2 (BRCA2 Products)

Background:

Synonyms: FAD, FACD, FAD1, GLM3, BRCC2, FANCD, PNCA2, FANCD1, BROVCA2, Breast cancer type 2 susceptibility protein, Fanconi anemia group D1 protein, BRCA2

Background: Involved in double-strand break repair and/or homologous recombination. Binds RAD51 and potentiates recombinational DNA repair by promoting assembly of RAD51 onto single-stranded DNA (ssDNA). Acts by targeting RAD51 to ssDNA over double-stranded DNA, enabling RAD51 to displace replication protein-A (RPA) from ssDNA and stabilizing RAD51-ssDNA filaments by blocking ATP hydrolysis. Part of a PALB2-scaffolded HR complex containing RAD51C and which is thought to play a role in DNA repair by HR. May participate in S phase checkpoint activation. Binds selectively to ssDNA, and to ssDNA in tailed duplexes and replication fork structures. May play a role in the extension step after strand invasion at replication-dependent DNA double-strand breaks, together with PALB2 is involved in both POLH localization at collapsed replication forks and DNA polymerization activity. In concert with NPM1, regulates centrosome duplication. Interacts with the TREX-2 complex (transcription and export complex 2) subunits PCID2 and DSS1, and is required to prevent R-loop-associated DNA damage and thus transcription-associated genomic instability. Silencing of BRCA2 promotes R-loop accumulation at actively transcribed genes in replicating and non-replicating cells, suggesting that BRCA2 mediates the control of R-loop associated genomic instability, independently of its known role in homologous recombination (PubMed:24896180).

Gene ID: 675

UniProt: P51587

Pathways: DNA Damage Repair, M Phase, Maintenance of Protein Location