摘要:
The present invention provides a novel .beta.1.fwdarw.6 N-acetylglucosaminyltransferase, which forms core 2 oligosaccharide structures in O-glycans, and a novel acceptor molecule, leukosialin, CD43, for core 2 .beta.1.fwdarw.6 N-acetylglucosaminyltransferase activity. The amino acid sequences and nucleic acid sequences encoding these molecules, as well as active fragments thereof, also are disclosed. A method for isolating nucleic acid sequences encoding proteins having enzymatic activity is disclosed, using CHO cells that support replication of plasmid vectors having a polyoma virus origin of replication. A method to obtain a suitable cell line that expresses an acceptor molecule also is disclosed.
摘要:
An external preparing for skin comprising one or more than two types of 2-hydroxy benzoic acid derivative and/or salt thereof represented by the following formula: ##STR1## wherein R is an alkoxy group or alkyl group in the formula. The external preparation for the skin according to the present invention has a suppression effect on melanine generation by inhibition of tyrosinase activity. Accordingly, an excellent bleaching effect based upon the suppression of chromatosis and a high degree of safety can be obtained.
摘要:
A method is provided for detecting T-cell dysfunctions. The method includes detecting an alteration in the level of a protein regulating synthesis of the hexasaccharide NeuNAc.alpha.2.fwdarw.3Gal.beta.1.fwdarw.3(NeuNAc.alpha.2.fwdarw.3Gal.beta.1.fwdarw.4GlcNAc.beta.1.fwdarw.6)GalNAc on leukosialin of T-cells from a subject suspected of having a T-cell dysfunction compared to resting T-cells from a normal individual. The protein regulating synthesis of the hexasaccharide can be core 2 GlcNAc transferase and can be detected by either a change in its amount or activity. Also provided is a method of detecting T-cell dysfunctions which includes detecting an alteration in the level of leukosialin having the hexasaccharide NeuNAc.alpha.2.fwdarw.3Gal.beta.1.fwdarw.3(NeuNAc.alpha.2.fwdarw.3Gal.beta.1.fwdarw.4GlcNAc.beta.1.fwdarw.6)GlcNAc on T-cells from a subject suspected of having a T-cell dysfunction compared to resting T-cells from a normal individual. Kits for detecting T-cell dysfunction are provided as well.
摘要:
An electromagnetic wave shielding system for an optical sensor includes: a sensor body having an aperture through which an optical signal is made incident on the sensor body; a shielding plate disposed within the sensor body, the shielding plate having an opening having a dimension of at most about one-half of the wavelength of electromagnetic waves; an optical system for gathering the optical signal which passes through the aperture of the sensor body to the dimension of the opening in the shielding plate so that it can pass through the opening; and a detecting/processing unit for detecting and processing the optical signal which passes through the opening in the shielding plate. Thus, the electromagnetic waves which have entered are prevented from passing through or are remarkably attenuated by the opening in the shielding plate, and are thereby prevented from reaching the detecting/processing unit.
摘要:
A solid electrolytic capacitor having excellent characteristics in terms of both electrical properties and thermal stability is obtained by employing a solid electrolyte comprising both an electrically conductive polymer layer (I) formed by a chemical oxidation method and an electrically conductive polymer layer (II) formed by an electrochemical oxidation method.
摘要:
The present invention concerns a composition for topical application which is greatly useful for the treatment of acne. The composition contains (1) a compound of the formula: ##STR1## or its ester or ether, (2) keratolytic agent and (3) pharmaceutically acceptable carrier.
摘要:
A PLL circuit is provided capable of reducing phase noise and facilitating design. In the PLL circuit, a PLL receives a reference frequency and an output from a VC-TCXO, performs a lock operation. In a lock state, a selector selects an output of a first divider that divides the reference frequency. When PLL detects input of reference frequency being lost or an unlock state, the PLL outputs an alarm signal to the selector. When receiving the alarm signal from the PLL, the selector switches from the output of the first divider to an output of a second divider that frequency-divides an output of the VC-TCXO, and outputs the same. Then, a PLL receives an output of the selector and an output of a VCXO and performs a lock operation.
摘要:
A method for manufacturing a group III nitride crystal on a seed crystal in a holding vessel holding therein a melt containing a group III metal, an alkali metal and nitrogen. The manufacturing method comprises the steps of causing the seed crystal to make a contact with the melt, setting an environment of the seed crystal to a first state offset from a crystal growth condition while in a state in which said seed crystal is in contact with the melt, increasing a nitrogen concentration in the melt, and setting the environment of the seed crystal to a second state suitable for crystal growth when the nitrogen concentration of the melt has reached a concentration suitable for growing the seed crystal.
摘要:
Compositions useful for inhibiting the growth of bacteria, including bacteria that can cause gastric ulcers, are provided. In addition, transgenic organism that can produce such compositions are provided. Methods of using the compositions to treat or prevent gastric ulcers in a subject, including a human subject, also are provided.
摘要:
A lead wire led-out type crystal oscillator of constant temperature type for high stability is disclosed, which includes a heat supply body that supplies heat to a crystal resonator from which a plurality of lead wires are led out, to maintain the temperature constant. The heat supply body includes a heat conducting plate which has through-holes for the lead wires and is mounted on the circuit board, and which faces, and is directly thermally joined to, the crystal resonator and a chip resistor for heating which is mounted on the circuit board adjacent to the heat conducting plate, and is thermally joined to the heat conducting plate.