Dec 13, 2022
Western blotting to detect ATP13A2 and ATP13A3
- 1KU Leuven
External link: https://doi.org/10.3390/biom13020337
Protocol Citation: Marine Houdou, Peter Vangheluwe 2022. Western blotting to detect ATP13A2 and ATP13A3. protocols.io https://dx.doi.org/10.17504/protocols.io.81wgbyzqovpk/v1
Manuscript citation:
Houdou M, Jacobs N, Coene J, Azfar M, Vanhoutte R, Haute CVd, Eggermont J, Daniëls V, Verhelst SHL, Vangheluwe P, Novel Green Fluorescent Polyamines to Analyze ATP13A2 and ATP13A3 Activity in the Mammalian Polyamine Transport System. Biomolecules 13(2). doi: 10.3390/biom13020337
License: This is an open access protocol distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
Protocol status: Working
We use this protocol and it's working
Created: December 02, 2022
Last Modified: May 31, 2024
Protocol Integer ID: 73481
Keywords: ASAPCRN, atp13a3 protocol, atp13a2, western blotting, protocol
Abstract
Protocol to detect ATP13A2 and ATP13A3 via Western Blotting.
Materials
- Antibodies:
- Goat anti-mouse IgG (H+L) secondary antibody HRP conjugated: Thermo Scientific, 31430
- Goat anti-rabbit IgG (H+L) secondary antibody HRP conjugated: Thermo Scientific, 31460
- Mouse monoclonal anti-GAPDH (lot #067M4785V, dilution 1:5,000): Sigma, G8795.
- Rabbit anti-ATP13A2 antibodies (lot #0000102992, dilution 1:1,000): Sigma, A3361.
- Rabbit anti-ATP13A3 antibody (lot # 000035781, dilution 1:2,000): Atlas Antibodies, HPA029471.
- 0.25% Trypsin-EDTA: Gibco, 25200056
- Dulbecco’s Phosphate Buffered saline modified without calcium chloride and magnesium chloride (DPBS): Gibco, D8537
- Micro-BCA Protein Assay Kit: Pierce BCA Protein Assay Kit, Thermo Scientific, 23225
- NuPAGE LDS sample buffer: Invitrogen, NP0007
- Ponceau staining: Sigma, P7170
- Pre-cast 4-12% Bis-Tris gels: Invitrogen, NP0321BOX
- PVDF membranes: Thermo Scientific, 88518
- RIPA Lysis and Extraction Buffer: Invitrogen: 89900
- SIGMAFAST Protease Inhibitor Cocktail Tablets, EDTA-Free: Sigma: S8830
- SuperSignal West Pico PLUS chemiluminescent Substrate: Thermo Scientific, 34095
Harvesting cells
Depending on cell type, collect the cells by scrapping them with a scrapper in Dulbecco’s Phosphate Buffered saline modified without calcium chloride and magnesium chloride (DPBS) (SH-SY5Y) or, using 0.25% Trypsin-EDTA (HMEC-1) for which stop enzymatic reaction by adding culture medium.
Centrifuge cell suspensions at 450 g (SH-SY5Y) or 2500 rpm (HMEC-1), 4°C for 00:05:00 .
5m
Resuspend cell pellets with DPBS and centrifuge following the same indications as in 2. Repeat once.
Discard supernatants and keep cell pellets on ice.
Cell lysis and protein concentration determination
Resuspend cell pellets in RIPA buffer (RIPA Lysis and Extraction Buffer supplemented with protease cocktail inhibitors.
Vortex 00:00:30 and keep on ice for 00:30:00 .
30m 30s
Centrifuge at 20,000g, 4°C for 00:30:00 .
30m
Keep supernatants on ice to proceed with protein concentration determination using the micro-BCA Protein Assay Kit.
SDS-PAGE
7h 10m
Loading
Mix 20 µg of protein with NuPAGE LDS sample buffer and 5% β-mercaptoethanol final.
For this specific protocol to detect ATP13A2 and ATP13A3, do not boil samples.
Load protein on pre-cast 4-12% Bis-Tris gels. Include at least one lane with a protein ladder.
Running
Run for 00:10:00 at 100V and 01:30:00 at 110-130V.
1h 40m
Transfer
Transfer onto PVDF membranes using a liquid transfer and following settings: 100V, 01:15:00 , 4°C.
1h 15m
Ponceau staining
Rinse membrane with distilled water.
Incubate membrane with Ponceau staining for 00:05:00 , 19 rpm.
5m
Scan membrane if necessary.
Blocking
01:00:00 Block membranes with blocking buffer (5% milk powder in 1X TBS and 0.1% Tween20 (REF)) for 01:00:00 at room temperature, 19 rpm.
2h
Primary antibodies
Incubate membrane with primary antibodies in solution (1% bovine serum albumin in 1X TBS-Tween20 (TBS-T) buffer), Overnight at 4°C, 19 rpm.
1h
Wash membrane three times for 00:05:00 in TBS-T, 19 rpm.
5m
Secondary antibodies
Incubate membrane with peroxidase-conjugated secondary antibodies in solution (1% milk powder in 1X TBS-T) for 01:00:00 at room temperature and, 19 rpm.
1h
Wash membrane five times for00:05:00 in TBS-T, 19 rpm.
5m
Detection
Use a chemiluminescence reagent to detect signal and acquire with a Biorad Camera (Vilber Lourmat) and its software (ImageLab).