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00:18
1.
Western Blot - 3_Semi-Dry transfer [Video from GeneTex]
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00:12
2.
Transfer proteins to nitrocellulose membrane
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00:08
2.1
equilibrate in transfer buffer for 15 min
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00:13
2.2
Rinse 4 pieces of blot paper with transfer buffer
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00:09
2.3
Place 2 pieces of pre-soaked blot paper onto the platinum anode
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00:02
2.4
Roll a test tube over the layer to remove bubbles
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00:08
2.5
Place the pre-wetted nitrocellulose membrane on top of the wetted blot paper
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00:08
2.6
Place the equilibrated gel on top of the nitrocellulose membrane
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00:04
2.7
Place 2 pieces of pre-wetted blot paper on top of the gel
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00:03
2.8
Roll a test tube over the layer to remove bubbles
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00:11
2.9
Sop up transfer buffer with paper towel
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00:08
2.10
Place the cathode plate onto the stack
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00:04
2.11
Place safely cover on the unit
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00:16
2.12
Run the transfer unit at 18V for 1 h
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00:06
2.13
Rinse the membrane with H2O
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00:00
3.
Check for success of transfer
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00:17
3.1
Stain the nitrocellulose with Ponceau Red solution
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00:10
3.2
Wash in H2O unter the water is clear and protein bands are well-defined
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00:11
3.3
The membrane can be destained by washing in TBST or water
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00:00
4.
Block the membrane
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00:06
4.1
Incubate the membrane in blocking buffer at RT for 30-60 min
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00:01
4.2
Pour off the blocking buffer
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00:00
5.
Incubate with the primary antibody
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00:09
5.1
Incubate the membrane in blocking buffer with primary antibody at 4C overnight
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00:00
6.
Wash the nitrocellulose membrane
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00:03
6.1
Pour off the primary antibody solution
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00:13
6.2
Wash the membrane 5 times for 3-5 min each time with TBST
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00:00
7.
Incubate with the secondary antibody
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00:15
7.1
Incubate the membrane in blocking buffer with 2nd antibody at RT for 1 h
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00:00
8.
Wash the nitrocellulose membrane
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00:03
8.1
Pour off the 2nd antibody solution
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00:15
8.2
Wash the membrane 5 times for 3-5 min each time with TBST
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00:00
9.
Detect the proteins using detection system
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00:06
9.1
Remove excess TBST
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00:04
9.2
Follow the instruction of ECL kit
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00:15
9.3
Mix equal vol. of Enhanced Luminol Reagent (A) and the Oxidizing Reagent (B)
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00:08
9.4
Pour the chemiluminescence reagent into the membrane (incubate 1 min at RT)
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00:21
9.5
Take a picture with CCD camera