A report on an experiment I did of doing electrophoresis with proteins
A report on an experiment I did of doing electrophoresis with proteins
A report on an experiment I did of doing electrophoresis with proteins
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2<br />
A. A note <strong>on</strong> the chemical soluti<strong>on</strong>s used<br />
Some <strong>of</strong> the st<strong>an</strong>dard acr<strong>on</strong>yms for chemicals that are used are,<br />
• “Acrylamide Mix” is a 1 : 29 mixture <strong>of</strong> N, Nmethylene bis-acrylamide <strong>an</strong>d Acrylamide<br />
• “SDS” is Sodium Dodecyl Sulphate<br />
• “APS” is Amm<strong>on</strong>ium per-Sulphate (always stored at −20 ◦ C)<br />
• “TEMED” is N,N,N’,N’-Tetramethylethyl-enediamine (always stored at 4 ◦ C)<br />
All the autoclaving in this <strong>experiment</strong> are d<strong>on</strong>e at 121 ◦ C for 15minutes at 103kP a <strong>of</strong> pressure in <strong>an</strong> autoclaving<br />
apparatus made by Hospharma.<br />
The mixture <strong>of</strong> chemicals required to make 15ml <strong>of</strong> Separating Gel are,<br />
• H 2 O −→ 6.9ml<br />
• 30%Acrylamide Mix −→ 4.0ml<br />
• 1.5M T ris − Hcl(pH 8.8) −→ 3.8ml<br />
• 10% SDS −→ 0.15ml<br />
• 10% AP S −→ 0.15ml<br />
• T EMED −→ 0.009ml<br />
The mixture <strong>of</strong> chemicals required to make 5ml <strong>of</strong> Stacking Gel are,<br />
• H 2 O −→ 3.4ml<br />
• 30%Acrylamide Mix −→ 0.83ml<br />
• 1M T ris − Hcl(pH 8.8) −→ 0.63ml<br />
• 10% SDS −→ 0.05ml<br />
• 10% AP S −→ 0.05ml<br />
• T EMED −→ 0.005ml<br />
To make 2l <strong>of</strong> the Electrophoresis Buffer that will act as the c<strong>on</strong>ductor for the current during <strong>electrophoresis</strong><br />
<strong>on</strong>e uses the following mixture,<br />
• Trizma Base (a.k.a Tris), which is mainly C 4 H 11 NO 3 → 12g<br />
• Glycine → 57.6g<br />
• SDS → 2g<br />
• Autoclaved water is added to make up the volume to 2l <strong>an</strong>d pH adjustment is not d<strong>on</strong>e.<br />
To make 50ml <strong>of</strong> the Sample Buffer (DTT dye) <strong>on</strong>e has to mix the following,<br />
• 0.6M soluti<strong>on</strong> <strong>of</strong> Tris in HCl at pH 6.8 → 5ml<br />
• SDS → 0.5g<br />
• Sucrose → 5g<br />
• β − Mercaptoeth<strong>an</strong>ol → 0.25ml<br />
• 0.5% Bromophenol Blue → 5ml<br />
• Autoclaved water is added to make up the soluti<strong>on</strong> to 50ml