Western Blot: 10 μg/mL for chemiluminescence detection system. Positive Controls: HeLa, A431, ZR75-1, HEp-2, NIH/3T3, PC12. Detailed procedure is provided in Protocols. Other applications not tested. Optimal dilutions are dependent on conditions and should be determined by the user.
Protokoll
SDS-PAGE & Western Blotting1) Wash the cells 3 times with PBS and suspend with 10 volume of cold Lysis buffer (50 mMTris-HCl, pH 7. 2, 250 mM NaCl, 0. 1% NP-40, 2 mM EDTA, 10% glycerol) containingappropriate protease inhibitors. Incubate it at 4°C with rotating for 30 minutes, thensonicate briefly (up to 10 seconds). 2) Centrifuge the tube at 12,000 x g for 10 minutes at 4°C and transfer the supernatant toanother tube. Measure the protein concentration of the supernatant and add the Lysisbuffer to make 8 mg/mL solution. 3) Mix the sample with equal volume of Laemmli’s sample buffer. 4) Boil the samples for 2 minutes and centrifuge. Load 10 μL of the sample per lane in a 1mm thick SDS-polyacrylamide gel for electrophoresis. 5) Blot the protein to a polyvinylidene difluoride (PVDF) membrane at 1 mA/cm2 for 1 hourin a semi-dry transfer system. (Transfer Buffer: 25 mM Tris, 190 mM glycine, 20% MeOH). See the manufacture's manual for the transfer procedure. 6) To reduce nonspecific binding, soak the membrane in 10% skimmed milk (in PBS, pH7. 2) for 1 hour at room temperature, or overnight at 4°C. 7) Incubate the membrane with primary antibody diluted with PBS, pH 7. 2 containing 1%skimmed milk as suggested in the APPLICATIONS for 1 hour at room temperature. (Theoptimal antibody concentration will depend on the experimental conditions. 8) Wash the membrane with PBS (5 minutes x 6 times). 9) Incubate the membrane with the 1: 10,000 POD-conjugated anti-mouse IgG diluted with1% skimmed milk (in PBS, pH 7. 2) for 1 hour at room temperature. 10) Wash the membrane with PBS (5 minutes x 6 times). 11) Wipe excess buffer from the membrane, then incubate it with appropriatechemiluminescence reagents for 1 minute. Remove extra reagent from the membrane bydabbing with a paper towel, and seal it in plastic wrap. 12) Expose to an X-ray film in a dark room for 5 minutes. Develop the film as usual. Theconditions for exposure and development may vary. Positive Controls for Western blotting: HeLa, A431, ZR75-1, HEp-2, NIH/3T3, PC12
Beschränkungen
Nur für Forschungszwecke einsetzbar
Konzentration
1.0 mg/mL
Buffer
PBS, pH 7.2 containing 50 % Glycerol without preservatives
Konservierungsmittel
Without preservative
Lagerung
-20 °C
Informationen zur Lagerung
Store the antibody undiluted at -20 °C. Shelf life: one year from despatch.
Haltbarkeit
12 months
Target
CDC25C
(Cell Division Cycle 25 Homolog C (S. Pombe) (CDC25C))
The activity of cyclin-dependent kinases is regulated by their phosphorylation status, which is controlled by the antagonistic action of CDC25 phosphatases. Three CDC25 genes are present in human cells: CDC25A, CDC25B and CDC25C. CDC25C is a ~56 kDa dual specific protein phosphatase that controls entry into mitosis by regulating the dephosphorylation of the Cdk1/cyclin B complex. Phosphorylation of Cdc25C creates a binding site for 14-3-3 protein which inhibits Cdc25C. This prevents activation of the Cdk1/cyclin B complex and prevents mitotic entry. Cdc25C is phosphorylated by checkpoint kinases throughout interphase but becomes dephosphorylated during mitosis. Cdc25C is also regulated by p53 via a p53 response element in its promoter, and it is predominantly expressed in the G2 phase of the cell cycle.Synonyms: Cell Division Cycle 25C, Dual specificity phosphatase Cdc25C, M-phase inducer phosphatase 3