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Archive for April, 2010

Homo sapiens codon usage table

UUU F 17.6   UCU S 15.2   UAU Y 12.2   UGU C 10.6
UUC F 20.3   UCC S 17.7   UAC Y 15.3   UGC C 12.6
UUA L 7.7    UCA S 12.2   UAA * 1.0    UGA * 1.6
UUG L 12.9   UCG S 4.4    UAG * 0.8    UGG W 13.2

CUU L 13.2   CCU P 17.5   CAU H 10.9   CGU R 4.5
CUC L 19.6   CCC P 19.8   CAC H 15.1   CGC R 10.4
CUA L 7.2    CCA P 16.9   CAA Q 12.3   CGA R  6.2
CUG L 39.6   CCG P  6.9   CAG Q 34.2   CGG R 11.4

AUU I 16.0   ACU T 13.1   AAU N 17.0   AGU S 12.1
AUC I 20.8   ACC T 18.9   AAC N 19.1   AGC S 19.5
AUA I 7.5    ACA T 15.1   AAA K 24.4   AGA R 12.2
AUG M 22.0   ACG T  6.1   AAG K 31.9   AGG R 12.0

GUU V 11.0   GCU A 18.4   GAU D 21.8   GGU G 10.8
GUC V 14.5   GCC A 27.7   GAC D 25.1   GGC G 22.2
GUA V 7.1    GCA A 15.8   GAA E 29.0   GGA G 16.5
GUG V 28.1   GCG A  7.4   GAG E 39.6   GGG G 16.5

Better one:
http://www.kazusa.or.jp/java/codon_table_java

Comments

April 30, 2010 at 2:17 pm ·

Disable Revision History in WordPress

Open  wp-config.php file in wordpress root installation directory.
Add the following line:

define(’WP_POST_REVISIONS’, false);

Then delete revision history using SQL

DELETE FROM wp_posts WHERE post_type =’revision’;

Comments

April 30, 2010 at 9:58 am ·

Western Blot Using Nitro blue tetrazolium chloride and 5-Bromo-4-chloro-3-indolyl phosphate, NBT BCIP

NBT-BCIP Stock:
Dissolve 188 mg NBT (Nitro blue tetrazolium chloride) and 94 mg BCIP (5-Bromo-4-chloro-3-indolyl phosphate, toluidine salt) in 10 ml of 67% DMSO (v/v).
Aliquote 1ml and store at -20 oC. NBT and BCIP can be purchased from Sigma or Gold Biotech

AP Buffer:
100mM NaCl, 0.1M Tris, 5mM MgCl2, adjust pH to 9.5 with hydrochloric acid.
Tris-HCl (MW 157.60) ———————- 15.8 g
NaCl (MW 58.44) ————————— 5.8 g
MgCl2 (MW 203.31) ———————— 1.02 g
Distilled water —————————– 900 ml

After washing to remove unbound 2nd antibody (alkaline phosphatase), add 5 ml AP buffer, 25 to 50 ul of  NBT-BCIP Stock.  Let color development for 10  minutes. Stop reaction by adding water and wash membrane with water.

Comments

April 30, 2010 at 8:39 am ·

Home-made Bradford reagent for protein assay

Dissolve 100 mg Coomassie Brilliant Blue G-250 (100 mg) in 50 ml 95% ethanol, add 100 ml 85% (w/v) phosphoric acid. Dilute to 1 liter when the dye has completely dissolved, and filter through Whatman #1 paper.  Final concentrations in the reagent: 0.01% (w/v) Coomassie Brilliant Blue G-250, 4.7% (w/v) ethanol,  8.5% (w/v) phosphoric acid.

Comments

April 29, 2010 at 7:07 pm ·

Home-Made Colloidal Silver Blue Protein Stain

Composition: 0.12% Coomassie Blue G-250 , 10% ammonium sulfate, 10% phosphoric acid, and 20% methanol
Sensitivity: 1 ng.

Steps to Prepare Colloidal Silver Blue Protein Stain:
1, Add 100 ml of phosphoric acid to 500 ml ddH2O.
2, Add 100 g ammonium sulfate (powder) while stirring.
3, When the ammonium sulfate has dissolved, add 1.2 g Coomassie Blue G-250 (powder)
4, Add water to 800 ml.
5, While stirring, add 200 ml methanol.
6, Store the stain solution in a brown bottle. It is stable at room temperature for ~ 6 months.

Comments

April 29, 2010 at 6:48 pm ·

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