Asp-N Protease, MS Grade (CAT#: Glyco-077CL)
Asp-N Protease, MS Grade, is a highly specific endoproteinase used to improve sequence coverage in mass spectrometry protein identification applications.
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Specifications
- Product Size
- 2 µg
- Final Product
- Peptide
- Workflow Step
- Protein Digestion
- Detection Method
- Mass Spectrometry
- Starting Material
- Cell Lysate, Protein samples
- For Use With (Equipment)
- Mass Spectrometer
- Contents & storage
- Store at -20°C in a nonfrost-free freezer.
Background
- Description
- This Asp-N is a mass spectrometry (MS)-grade zinc metalloproteinase derived from a mutant strain of Pseudomonas fragi and requires a trace amount of zinc for activity. Asp-N can be used alone or in parallel with trypsin or other proteases to produce protein digests for peptide mapping and protein sequencing. Asp-N protease is suitable for either in-solution or in-gel digestion workflows. This Asp-N enzyme is packaged lyophilized (2 µg).
The endoproteinase AspN cleaves primarily at amino side of aspartate residues and cysteic acid residues that result from the oxidization of cysteine residues, generating a limited number of peptide fragments. Cleavage can also occur at glutamic residues; however, the rate of cleavage at the glutamyl residues is significantly lower than the rate of cleavage at the aspartic acid residues. AspN can efficiently digest protein in 2-20 hours at 37°C. AspN remains active under denaturing conditions such as 1M urea, 2M guanidine·HCl, 0.1% SDS, 2% CHAPS and 10% acetonitrile with optimal activity in the pH range of 6-8. This lyophilized enzyme has a mass of 27 kDa and is stable for 1 year when stored at -20°C.
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For Research Use Only. Not For Clinical Use.
For research use only. Not intended for any clinical use. No products from Creative Biolabs may be resold, modified for resale or used to manufacture commercial products without prior written approval from Creative Biolabs.
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