WB胶及试剂配制

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1.1 40% Bis-acrylamide with 2.6% C (Acrylamide:Bis, 38.95:1.05)

acrylamide 77.9g

Bis-acry 2.1g

Total 200ml

1.2 30%胶溶液:

Bis-acry 0.8g

acrylamide 29.2g

total 100ml

1.3 3M TrisHCl , pH 8.45

36.3g Trisbase

Total 100ml

1.4 WG ( water + Glycerol):

Water: 58ml

Glycerol: 36ml

Total: 94ml

1.5 10x Electrophoresis Buffer stock pH8.3

Trisbase 60.5g

Tricine 89.5g

SDS 5g

total 500ml

1.6 10% SDS

SDS 10g

Total 100ml

1.7 2x Laemmli Stacking Buffer pH6.8:

0.25M Tris 15.14g

0.2% SDS 1g or 5ml 20% SDS

total 500ml

1.8 transfer buffer

25mM Tris 3g

192mM glycine 14.4g

40% methanol 400ml

Total 1000ml

1.9 TBST

10mM Tris-HCl, pH7.4

100mM NaCl

0.2% Tween-20

Total 1000ml Separating gel: 15%

Separating Gel (15%) 1 gel

WG 1.88ml

40% Gel.sol 2 ml

3M TrisHCl pH 8.45 2 ml

10% SDS 0.06 ml

10%APS 0.06 ml

TEMED 0.003 ml

Total 6.003 ml

Spacing gel: 10%

Spacer Gel (10%) 1 gel

dH2O 0.47 ml

30% Gel.sol 0.5 ml

3M TrisHCl pH 8.45 0.5 ml

10% SDS 0.015 ml

10%APS 0.015 ml

TEMED 0.0015 ml

Total

1.5015 ml

Stacking gel:4%

Stacking Gel (4%) 1 gel

2×Stacking. buffer 1.5ml

30% Gel.sol 0.75ml

ddH2O 0.75ml

TEMED 4ul

10%APS 40ul

Total 3.44ml

All recipes are designed for 1.5mm gel

1.1 做分离胶,加水封胶,待其凝固。

1.2 去除封胶水,做间隙胶,加水封胶,待其凝固。

1.3 去除封胶水,做浓缩胶,插梳子。

1.4 待浓缩胶凝固后,拔掉梳子,并将架子转移到电泳槽中,先在中部加入1x Electrophoresis

Buffer pH8.3,点样。

1.5 调节电压到60v,开始电泳,一小时后电压升至120v。

1.6 溴酚蓝开始跑出最下端时停止电泳

1.7 取胶,湿法转移,一张膜20v过夜,2张膜串联30v过夜

1.8 封闭45min,一抗37度孵育90min,然后洗涤5min*5次,2抗孵育 45min,洗涤8min*4次。曝光显影。