EMS0008

Sigma-Aldrich

LysargiNase

suitable for peptide or protein digestion insolution or in gel

Synonym(s):
LysargiNase mirrors trypsin for protein C-terminal and methylation-site identification

Quality Level

shipped in

ambient

Related Categories

General description

LysargiNase is a metalloproteinase found in the thermophilic archaea Methanosarcina acetivorans. It specifically cleaves before lysine and arginine residues in proteins. This cleavage results in peptides with molecular weights similar to tryptic peptides, but with N-terminal lysine or arginine residues that can be fragmented with b ion-dominated spectra. This can improve protein C-terminal peptide identification and several arginine rich phosphosite assignments. Unlike with trypsin, LysargiNase cleavage also occurs at methylated lysine and arginine, allowing detection of these epigenetic modifications.
LysargiNase is suitable for peptide or protein digestion in solution or in gel.

Application

LysargiNase is suitable for peptide or protein digestion in solution or in gel.
LysargiNase is suitable for peptide or protein digestion in solution or in gel. It is active under a variety of solvent conditions including 5 mM TCEP, 5% methanol, 5% acetonitrile, 0.8 M urea, 0.1% RapiGest, 1% deoxycholate, 0.2% SDS and 1% NP-40. It is active up to 55°C at pH 6 – 9. LysargiNase is reversibly inhibited by 1, 10-phenanthroline, EDTA and other calcium and zinc chelating agents. For peptide or protein digestion, a ratio of between 1:100 to 1:20 (w/w) enzyme:substrate is recommended.

Components

Each vial contains 20 µg LysargiNase, prepared by recombinant expression in E. coli and lyophilized from buffer.

Physical form

Each vial contains 20 µg LysargiNase, prepared by recombinant expression in E. coli and lyophilized from buffer. Upon reconstitution in 20 µL water, the enzyme is in 50 mM HEPES, 5 mM CaCl2, pH 7.5.

Storage and Stability

Store the lyophilized product at -20°C for up to 2 years. After reconstitution, the unused material can be stored in the freezer in aliquots. Avoid repeated freeze thaw cycles.

Other Notes

Concentration: Please refer to lot specific datasheet.

Disclaimer

Unless otherwise stated in our catalog or other company documentation accompanying the product(s), our products are intended for research use only and are not to be used for any other purpose, which includes but is not limited to, unauthorized commercial uses, in vitro diagnostic uses, ex vivo or in vivo therapeutic uses or any type of consumption or application to humans or animals.

Pictograms

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Signal Word

Danger

Hazard Statements

Target Organs

Respiratory system

WGK Germany

WGK 1

Liana Tsiatsiani et al.
The FEBS journal, 282(14), 2612-2626 (2015-04-01)
Peptide-centered shotgun analysis of proteins has been the core technology in mass spectrometry based proteomics and has enabled numerous biological discoveries, such as the large-scale charting of protein-protein interaction networks, the quantitative analysis of protein post-translational modifications and even the...
Cynthia Tallant et al.
The Journal of biological chemistry, 281(26), 17920-17928 (2006-04-22)
The metzincin clan encompasses several families of zinc-dependent metalloproteases with proven function both in physiology and pathology. They act either as broad spectrum protein degraders or as sheddases, operating through limited proteolysis. Among the structurally uncharacterized metzincin families are the...
Pitter F Huesgen et al.
Nature methods, 12(1), 55-58 (2014-11-25)
To improve proteome coverage and protein C-terminal identification, we characterized the Methanosarcina acetivorans thermophilic proteinase LysargiNase, which cleaves before lysine and arginine up to 55 °C. Unlike trypsin, LysargiNase-generated peptides had N-terminal lysine or arginine residues and fragmented with b...

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