Enzymes for Research, Diagnostic and Industrial Use

Immobilized Endoproteinase Glu-C on G3m

Cat No.
Endoproteinase Glu-C hydrolyzes peptide and ester linkages specifically at the carboxyl end of glutamic acid (-Glu/-X; in ammonium carbonate pH 7. 8, or ammonium acetate pH 4. 0, buffer A) or of glutamic and aspartic acid (-Glu/-X and -Asp/-X; in phosphate buffer pH 7. 8, buffer B).
G3m: 25 µg (22 units) endoproteinase Glu-C per CR-column immobilized on dextran.
This CR-column cuts at least 12 µg tubulin or 5 µg BSA per application in phosphate buffer.
Nr. 7 Storage buffer: 50 mM Tris/HCl at pH 7. 5, 5 mM EDTA.
Nr. 31 Reaction buffer: 25 mM NH4-acetate, pH 4. 0 (see above)
Nr. 32 Washing buffer: 25 mM NH4-acetate, pH 4. 0, 1 M NaCl
Nr. 62 Reaction buffer: 50 mM phosphate buffer, pH 7. 8 (see above)
Nr. 63 Washing buffer: 50 mM phosphate buffer, pH 7. 8, 1 M NaCl
Staphylococcus aureus
Enzyme Commission Number
EC 3. 4. 21. 19
4 °C
EC 3. 4. 21. 19; Staph aureus V8 Protease; Protease, Staph aureus (Endoproteinase Glu-C); Glutamyl endopeptidase; V8 proteinase, endoproteinase Glu-C; staphylococcal serine proteinase
1. Dilute delivered buffers (at least 2 ml each) with sterile doubly distilled water.
For 1 application you need
1 ml 10x reaction buffer and 9 ml doubly distilled water
2 ml 5x washing buffer and 8 ml doubly distilled water
1 ml 10x storage buffer and 9 ml doubly distilled water
The substrate should be in reaction buffer
2. Equilibrate the CR-column with 10 ml reaction buffer.
Fill 10 ml reaction buffer into a syringe, let the reaction buffer run through the column by gravity to the upper filter. In case the buffer runs very slowly, apply pressure by a syringe.
3. Load substrate solution in reaction buffer.
Small volumes (< 70 µl): spin the CR-column 5 seconds in a benchtop centrifuge (2000 rpm are sufficient). Let the substrate solution enter the matrix material.
Larger volumes: Let the substrate solution run through the column.
Flow-rate: up to 70 µl/minute
Keep the substrate in the column for about 1 minute at room temperature. Higher turn-over is obtained when the substrate is applied to the column again or incubated for longer times.
4. Elute the product solution.
Small volumes (<70 µl): centrifuge the product out of the column.
Larger volumes: Let the substrate run through the column and spin the residual solution out of the matrix
Notice: Molecules < 700 Dalton have to be eluted with 7 ml reaction buffer.
It does not harm the columns if they run dry.
5. Wash the column with 10 ml washing buffer.
6. Equilibrate the column with 10 ml storage buffer.
Store the column at 4°C. Never freeze a CR-column!
Download Datasheet:

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EC No.
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