Abstract: An electronic component includes: a substrate; a plurality of multilayer capacitors mounted on a first main surface of the substrate; and a sealing part formed of a resin and sealing the plurality of multilayer capacitors. A first external electrode and a second external electrode of the multilayer capacitor are mounted on the substrate by solder. At least a part of adjacent multilayer capacitors overlaps each other when viewed from a direction in which a pair of side surfaces of an element body are opposed to each other, the direction being along the first main surface of the substrate. In the adjacent multilayer capacitors, stacking directions of a plurality of internal electrodes are the same, and a distance between the adjacent multilayer capacitors is ½ or less of a height of the multilayer capacitor mounted on the substrate.

Abstract: An equivalent circuit includes a first capacitor having a first capacitance, a circuit part configured to include an inductor component, a capacitor component, and a resistor connected in series with one another, the circuit part being connected in parallel with the first capacitor, and a second capacitor provided between the first capacitor and the circuit part and having a second capacitance. The first capacitance of the first capacitor changes in accordance with a voltage value of a direct current voltage applied to the first capacitor. The second capacitor has the positive second capacitance that changes in accordance with the voltage value of the direct current voltage applied to the first capacitor and that is N times (N>0) the first capacitance of the first capacitor.

Abstract: Polypeptides having 2?,5?-oligoadenylate phosphodiesterase activity, antibodies against the polypeptides, polynucleotides coding for the polypeptides, recombinant plasmid DNAs into which the polynucleotides have been inserted, host cells transformed by the recombinant plasmid DNAs, processes for screening for 2?,5?-oligoadenylate phosphodiesterase activity inhibitor substances, and processes for screening for 2?,5?-oligoadenylate phosphodiesterase expression regulation inhibitor substances. The polypeptides, polynucleotides and host cells are useful for searching for therapeutic agents for viral infections and tumors.

Abstract: Polypeptides having 2?,5?-oligoadenylate phosphodiesterase activity, antibodies against the polypeptides, polynucleotides coding for the polypeptides, recombinant plasmid DNAs into which the polynucleotides have been inserted, host cells transformed by the recombinant plasmid DNAs, processes for screening for 2?,5?-oligoadenylate phosphodiesterase activity inhibitor substances, and processes for screening for 2?,5?-oligoadenylate phosphodiesterase expression regulation inhibitor substances. The polypeptides, polynucleotides and host cells are useful for searching for therapeutic agents for viral infections and tumors.