Arginine-Specific Cysteine Proteinase from Porphyromonas gingivalis as a Convenient Tool in Protein Chemistry
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A. Banbula
Abstract
RgpB, a cysteine proteinase produced by Porphyromonas gingivalis, exhibits proteolytic activity selectively directed against peptide bonds containing an arginine residue in the P1 position. Here we show that this enzyme can be used for very efficient and specific protein cleavage. RgpB is highly active even at high concentrations of denaturing agents, including urea (up to 6 M) and SDS (0.1%), both of them being commonly used for solubilization of insoluble proteins and peptides. Moreover, RgpB is able to digest polypeptide chains in buffers supplemented with 1% Triton X-100, 1% octyl or decylpyranoside, detergents employed for the enzymatic digestion of proteins transferred onto nitrocellulose membranes. These features render RgpB a suitable tool for use in protein chemistry.
Copyright © 2001 by Walter de Gruyter GmbH & Co. KG
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Articles in the same Issue
- Highlight: Evolution in Vivo, in Vitro and in Machina
- Modeling Genetic Networks and Their Evolution: A Complex Dynamical Systems Perspective
- Evolution in Silico and in Vitro: The RNA Model
- Divergent Evolution of (??)8-Barrel Enzymes
- RNA-Catalyzed Carbon-Carbon Bond Formation
- Toward Automated Nucleic Acid Enzyme Selection
- Duocalins: Engineered Ligand-Binding Proteins with Dual Specificity Derived from the Lipocalin Fold
- The Stochastic Evolution of Catalysts in Spatially Resolved Molecular Systems
- Fragment-Based Flexible Ligand Docking by Evolutionary Optimization
- Specific Nucleoprotein Complexes within Adenovirus Capsids
- ERH (Enhancer of Rudimentary Homologue), a Conserved Factor Identical between Frog and Human, Is a Transcriptional Repressor
- Signal Transduction by the Chemokine Receptor CXCR5: Structural Requirements for G Protein Activation Analyzed by Chimeric CXCR1/CXCR5 Molecules
- Arginine-Specific Cysteine Proteinase from Porphyromonas gingivalis as a Convenient Tool in Protein Chemistry
- Chemokine-Induced Secretion of Gelatinase B in Primary Human Monocytes
