Binding interaction of SARS coronavirus 3CL(pro) protease with vacuolar-H+ ATPase G1 subunit. 2005

Cheng-Wen Lin, and Fuu-Jen Tsai, and Lei Wan, and Chien-Chen Lai, and Kuan-Hsun Lin, and Tsung-Han Hsieh, and Shi-Yi Shiu, and Jeng-Yi Li
Department of Medical Laboratory Science and Biotechnology, China Medical University, No. 91, Hsueh-Shih Road, Taichung 404, Taiwan. cwlin@mail.cmu.edu.tw

The pathogenesis of severe acute respiratory syndrome coronavirus (SARS-CoV) is an important issue for treatment and prevention of SARS. Recently, SARS-CoV 3CL(pro) protease has been implied to be possible relevance to SARS-CoV pathogenesis. In this study, we intended to identify potential 3CL(pro)-interacting cellular protein(s) using the phage-displayed human lung cDNA library. The vacuolar-H+ ATPase (V-ATPase) G1 subunit that contained a 3CL(pro) cleavage site-like motif was identified as a 3CL(pro)-interacting protein, as confirmed using the co-immunoprecipitation assay and the relative affinity assay. In addition, our result also demonstrated the cleavage of the V-ATPase G1 fusion protein and the immunoprecipitation of cellular V-ATPase G1 by the 3CL(pro). Moreover, loading cells with SNARF-1 pH-sensitive dye showed that the intracellular pH in 3CL(pro)-expressing cells was significantly lower as compared to mock cells.

UI MeSH Term Description Entries
D008168 Lung Either of the pair of organs occupying the cavity of the thorax that effect the aeration of the blood. Lungs
D008969 Molecular Sequence Data Descriptions of specific amino acid, carbohydrate, or nucleotide sequences which have appeared in the published literature and/or are deposited in and maintained by databanks such as GENBANK, European Molecular Biology Laboratory (EMBL), National Biomedical Research Foundation (NBRF), or other sequence repositories. Sequence Data, Molecular,Molecular Sequencing Data,Data, Molecular Sequence,Data, Molecular Sequencing,Sequencing Data, Molecular
D009284 Naphthols Naphthalene derivatives carrying one or more hydroxyl (-OH) groups at any ring position. They are often used in dyes and pigments, as antioxidants for rubber, fats, and oils, as insecticides, in pharmaceuticals, and in numerous other applications. Hydroxynaphthalene,Hydroxynaphthalenes,Naphthol
D010450 Endopeptidases A subclass of PEPTIDE HYDROLASES that catalyze the internal cleavage of PEPTIDES or PROTEINS. Endopeptidase,Peptide Peptidohydrolases
D011994 Recombinant Proteins Proteins prepared by recombinant DNA technology. Biosynthetic Protein,Biosynthetic Proteins,DNA Recombinant Proteins,Recombinant Protein,Proteins, Biosynthetic,Proteins, Recombinant DNA,DNA Proteins, Recombinant,Protein, Biosynthetic,Protein, Recombinant,Proteins, DNA Recombinant,Proteins, Recombinant,Recombinant DNA Proteins,Recombinant Proteins, DNA
D003546 Cysteine Endopeptidases ENDOPEPTIDASES which have a cysteine involved in the catalytic process. This group of enzymes is inactivated by CYSTEINE PROTEINASE INHIBITORS such as CYSTATINS and SULFHYDRYL REAGENTS.
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D006863 Hydrogen-Ion Concentration The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH pH,Concentration, Hydrogen-Ion,Concentrations, Hydrogen-Ion,Hydrogen Ion Concentration,Hydrogen-Ion Concentrations
D000086782 Coronavirus 3C Proteases 3C proteases that occur in species of CORONAVIRIDAE. 3C Proteases, Coronavirus,3C-Like Proteinase, Coronavirus,Chymotrypsin-Like Main Protease, Coronavirus,Coronavirus 3C Proteinases,Coronavirus 3CLpro Proteases,Coronavirus 3CLpro Proteinase,M(pro) Protein, Coronavirus,Main Proteinase, Coronavirus,Mpro Protein, Coronavirus,3C Like Proteinase, Coronavirus,3C Proteinases, Coronavirus,3CLpro Proteases, Coronavirus,3CLpro Proteinase, Coronavirus,Chymotrypsin Like Main Protease, Coronavirus,Coronavirus 3C-Like Proteinase,Coronavirus Main Proteinase,Coronavirus Mpro Protein,Proteinase, Coronavirus 3CLpro,Proteinases, Coronavirus 3C
D000595 Amino Acid Sequence The order of amino acids as they occur in a polypeptide chain. This is referred to as the primary structure of proteins. It is of fundamental importance in determining PROTEIN CONFORMATION. Protein Structure, Primary,Amino Acid Sequences,Sequence, Amino Acid,Sequences, Amino Acid,Primary Protein Structure,Primary Protein Structures,Protein Structures, Primary,Structure, Primary Protein,Structures, Primary Protein

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