LaCava Research Wiki

Initiated September 2017

Total Protein Extraction with SDS buffer (DC-H-t (B3), PC-H-t (B1), PC-L-ut (B1))

Maria 10th January 2020 at 11:18am

Total Protein Extraction with SDS buffer (DC-H-t (B3), PC-H-t (B1), PC-L-ut (B1))

Date: 05/29/18
Cell lines:
DC-H-t (B3)
PC-H-t (B1)
PC-L-ut (B1)

Extraction/wash buffer: 20mM HEPES, pH7.4, 1% Tritonx-100, 500mM NaCl (with protease inhibitors)

Scale: 50mg per IP reaction with 5ul of anti-FLAG beads

Weigh out 50mg of powder/cell line, add 200ul of extraction buffer to each tube (1:4 w/v), vortex to mix

5x 2sec @ 2 Amp with the new sonicator

  • Western loading 25 ug of protein:

Load 25 ug of protein on a 15-well 4-12% Bis-Tris gel. Run 200 V for 40 minutes.

BCA:

Transfer protein to a nitrocellulose membrane. 70 V during 2 hours.
Block membrane during 2 hours – TBS-T 1X 5 % milk

Top of membrane: 1:1000 Flag 4º C o/n
Botton of membrane: 1:5000 ORF1 4 º C
o/n 3x10’ washes with TBS-T 1X
Top and botton membrane: 1:10000 anti-mouse HRP antibody 1 hour @ RT

  • Western loading 50 ug of protein: (06/06/18)

Load 50 ug of protein on a 15-well 4-12% Bis-Tris gel. Run 200 V for 40 minutes.

BCA:

Transfer protein to a nitrocellulose membrane. 70 V during 2 hours.
Block membrane during 2 hours – TBS-T 1X 5 % milk

Top of membrane: 1:1000 Flag 4º C o/n
Botton of membrane: 1:5000 ORF1 4 º C
o/n 3x10’ washes with TBS-T 1X
Top and botton membrane: 1:10000 anti-mouse HRP antibody 1 hour @ RT