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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

recombinant

expressed in E. coli

Quality Level

form

solid

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

Exclamation markHealth hazard

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Resp. Sens. 1 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 1

Certificate of Analysis

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Certificate of Quality

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