A strong band was seen at the correct molecular weight in the positive control, and no band was present in the negative control. Additionally, no non-specific bands were observed.
Validierungsbilder
Figure 1: Western blot of lysates from NIH/3T3 cells (Lane 1, positive control) and HeLa cells (Lane 2, negative control) probed with anti-GRB2 (upper panel) or with anti- Actin for loading control (lower panel).
Protokoll
Primärantikörper
Antigen: Growth Factor Receptor-Bound Protein 2 (GRB2) (1:200 dilution)
Total protein extracts were boiled in 1X SDS Sample Buffer containing 1% SDS and 1.25% β-mercaptoethanol at 95°C for 5 min prior to loading.
46 μg of boiled extracts were loaded and resolved on a 8-16% SDS-polyacrylamide gel.
The Spectra Multicolor Broad Range (Thermo Scientific, Cat # 26634) were used as molecular mass markers.
Proteins were transferred onto PVDF membrane by wet transfer and protein transfer was confirmed with Ponceau-S staining.
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) non-fat dry milk at room temperature for 1 h.
The membrane was rinsed with TBST once.
The membrane was immersed with the protein side up in the primary antibody solution (anti-GRB2; 1:200) in TBST containing 5% (W/V) non-fat dry milk and incubated for 16 hours at 4°C.
The membrane was rinsed in TBST three times for 5 min each.
The membrane was incubated in the HRP-conjugated secondary antibody solution (goat-anti rabbit IgG-HRP; 1:20,000) in TBST containing 5% (W/V) non-fat dry milk and incubated for 1 hour at room temperature (~26°C) with gentle agitation.
The membrane was rinsed three times with TBST for 5 min each.
The membrane was rinsed in TBS twice for 30 s each.
Signals were detected with ECL-2 Substrate. The blot was scanned for 300 s.
The membrane was rinsed three times with TBST, then incubated in Acidic Glycine Stripping Buffer at room temperature with gentle agitation for 3 times, 10 min each.
The membrane was washed in TBST 2 times for 10 min each.
Repeated Steps 5-12 with the loading control antibody (anti-Actin; 1:6,000) and its matching secondary antibody (goat-anti rabbit IgG-HRP; 1:20,000).
Anmerkungen
Nothing to note.
Format
Liquid
Konzentration
1 mg/mL
Buffer
0.01M TBS( pH 7.4) with 1 % BSA, 0.02 % Proclin300 and 50 % Glycerol.
Konservierungsmittel
Sodium azide
Vorsichtsmaßnahmen
This product contains sodium azide: a POISONOUS AND HAZARDOUS SUBSTANCE which should be handled by trained staff only.
Lagerung
4 °C,-20 °C
Informationen zur Lagerung
Shipped at 4°C. Store at -20°C for one year. Avoid repeated freeze/thaw cycles.
Haltbarkeit
12 months
Target
GRB2
(Growth Factor Receptor-Bound Protein 2 (GRB2))