Biomaterial Database

Selective deimination of vimentin in calcium ionophore-induced apoptosis of mouse peritoneal macrophages. 1998

H Asaga, and M Yamada, and T Senshu

Department of Cell Chemistry, Tokyo Metropolitan Institute of Gerontology, Japan. asagahi@tmig.or.jp

We found citrulline-containing proteins in mouse peritoneal macrophages undergoing calcium ionophore-induced apoptosis. Such proteins were products of deimination of arginine residues catalyzed by endogenous peptidylarginine deiminase (EC 3.5.3.15) activated by calcium influx. Western blotting analyses of the extract from macrophages incubated with 1 microM ionomycin showed selective deimination of vimentin without detectable degradation. Double immunofluorescence staining of deiminated proteins and vimentin suggested localization of deiminated vimentin around the periphery of round-shaped nucleus, which was thought to be an early morphological sign of apoptosis. The biological implication of vimentin deimination in macrophage apoptosis is discussed.

UI	MeSH Term	Description	Entries
D007476	Ionophores	Chemical agents that increase the permeability of biological or artificial lipid membranes to specific ions. Most ionophores are relatively small organic molecules that act as mobile carriers within membranes or coalesce to form ion permeable channels across membranes. Many are antibiotics, and many act as uncoupling agents by short-circuiting the proton gradient across mitochondrial membranes.	Ionophore
D007700	Kinetics	The rate dynamics in chemical or physical systems.
D008810	Mice, Inbred C57BL	One of the first INBRED MOUSE STRAINS to be sequenced. This strain is commonly used as genetic background for transgenic mouse models. Refractory to many tumors, this strain is also preferred model for studying role of genetic variations in development of diseases.	Mice, C57BL,Mouse, C57BL,Mouse, Inbred C57BL,C57BL Mice,C57BL Mice, Inbred,C57BL Mouse,C57BL Mouse, Inbred,Inbred C57BL Mice,Inbred C57BL Mouse
D002118	Calcium	A basic element found in nearly all tissues. It is a member of the alkaline earth family of metals with the atomic symbol Ca, atomic number 20, and atomic weight 40. Calcium is the most abundant mineral in the body and combines with phosphorus to form calcium phosphate in the bones and teeth. It is essential for the normal functioning of nerves and muscles and plays a role in blood coagulation (as factor IV) and in many enzymatic processes.	Coagulation Factor IV,Factor IV,Blood Coagulation Factor IV,Calcium-40,Calcium 40,Factor IV, Coagulation
D002467	Cell Nucleus	Within a eukaryotic cell, a membrane-limited body which contains chromosomes and one or more nucleoli (CELL NUCLEOLUS). The nuclear membrane consists of a double unit-type membrane which is perforated by a number of pores; the outermost membrane is continuous with the ENDOPLASMIC RETICULUM. A cell may contain more than one nucleus. (From Singleton & Sainsbury, Dictionary of Microbiology and Molecular Biology, 2d ed)	Cell Nuclei,Nuclei, Cell,Nucleus, Cell
D002956	Citrulline
D005455	Fluorescent Antibody Technique	Test for tissue antigen using either a direct method, by conjugation of antibody with fluorescent dye (FLUORESCENT ANTIBODY TECHNIQUE, DIRECT) or an indirect method, by formation of antigen-antibody complex which is then labeled with fluorescein-conjugated anti-immunoglobulin antibody (FLUORESCENT ANTIBODY TECHNIQUE, INDIRECT). The tissue is then examined by fluorescence microscopy.	Antinuclear Antibody Test, Fluorescent,Coon's Technique,Fluorescent Antinuclear Antibody Test,Fluorescent Protein Tracing,Immunofluorescence Technique,Coon's Technic,Fluorescent Antibody Technic,Immunofluorescence,Immunofluorescence Technic,Antibody Technic, Fluorescent,Antibody Technics, Fluorescent,Antibody Technique, Fluorescent,Antibody Techniques, Fluorescent,Coon Technic,Coon Technique,Coons Technic,Coons Technique,Fluorescent Antibody Technics,Fluorescent Antibody Techniques,Fluorescent Protein Tracings,Immunofluorescence Technics,Immunofluorescence Techniques,Protein Tracing, Fluorescent,Protein Tracings, Fluorescent,Technic, Coon's,Technic, Fluorescent Antibody,Technic, Immunofluorescence,Technics, Fluorescent Antibody,Technics, Immunofluorescence,Technique, Coon's,Technique, Fluorescent Antibody,Technique, Immunofluorescence,Techniques, Fluorescent Antibody,Techniques, Immunofluorescence,Tracing, Fluorescent Protein,Tracings, Fluorescent Protein
D006867	Hydrolases	Any member of the class of enzymes that catalyze the cleavage of the substrate and the addition of water to the resulting molecules, e.g., ESTERASES, glycosidases (GLYCOSIDE HYDROLASES), lipases, NUCLEOTIDASES, peptidases (PEPTIDE HYDROLASES), and phosphatases (PHOSPHORIC MONOESTER HYDROLASES). EC 3.	Hydrolase
D000076342	Protein-Arginine Deiminases	A family of ENZYMES that, in the presence of calcium ion, converts ARGININE to CITRULLINE in proteins. There are five PAD isotypes in mammals. In humans: they include PAD1, 2, 3, 4 and 6. They are encoded by five paralogous genes named PADI and clustered on human chromosome 1.	Peptidylarginine Deiminase,Peptidylarginine Deiminases,Protein-Arginine Deiminase,Protein-L-Arginine Iminohydrolase,Protein-L-Arginine Iminohydrolases,Deiminase, Peptidylarginine,Deiminase, Protein-Arginine,Deiminases, Peptidylarginine,Deiminases, Protein-Arginine,Iminohydrolase, Protein-L-Arginine,Iminohydrolases, Protein-L-Arginine,Protein Arginine Deiminase,Protein Arginine Deiminases,Protein L Arginine Iminohydrolase,Protein L Arginine Iminohydrolases
D000080002	Protein-Arginine Deiminase Type 4	A histone modification enzyme, which converts both ARGININE and monomethyl-arginine to CITRULLINE. It is one of several protein-arginine deiminase isoenzymes. It is a gene regulator involved in APOPTOSIS and CELL DIFFERENTIATION and a potential therapeutic target for the treatment of a variety of diseases.	PAD V Enzyme,PADI4 Protein,PADI5 Protein,Peptidyl Arginine Deiminase Type 4,Peptidyl Arginine Deiminase Type IV,Peptidylarginine Deiminase IV,Peptidylarginine Deiminase Type 4,Peptidylarginine Deiminase Type IV,Peptidylarginine Deiminase V,Protein Arginine Deiminase 4,Protein Arginine Deiminase Type 4,Protein Arginine Deiminase Type IV,Protein-Arginine Deiminase Type IV