Chiba University

Asahi Kasei Chemicals Corporation

Iwate University

Nippon Zenyaku Kogyo Co., Ltd.

National University Corporation, Iwate University

Kyoichi Saito

Noboru Kubota

Yasuyuki Suzuta

Daisuke Umeno

Tetsuro Yamashita

Goro Furumoto

Shinya Matsuno

Hiroki Fukutomi

Ayako Ito

Provided are: a selection method for a gene switch and a gene circuit, including using, as a selector, an expression vector containing at least a gene sequence whose expression is controlled by a transcription regulatory factor to be expressed when a genetic switch and a genetic circuit including the genetic switch operate, and a promoter sequence operably linked to the gene sequence upstream thereof; and an expression vector to be used in the selection method. This enables an effective selection method for a genetic switch and a genetic circuit, the selection method being able to be conducted within a short time period and with high selection efficiency and less leakiness.

Method for rapidly developing gene switches and gene circuits

A method for removing cauxin in cat urine and a material for removing cauxin are provided. The material for removing cauxin in cat urine comprises a polymer substrate on which surface a trifluoroketone derivative is immobilized via dithiol.

Material for removing cauxin in cat urine

An object of the invention is to provide a protein-adsorbing material having both adsorption capacity and high-speed treatment performance applicable to not only analysis use but also industrial use, in balance, and to provide a method for producing the same. The present invention provides a protein-adsorbing material comprising a polymer base-material, a polymer side-chain immobilized to the surface of the polymer base-material and a functional group having protein adsorption ability and immobilized to the polymer side-chain, in which the mass of the polymer side-chain is 5 to 30% relative to the mass of the polymer base-material.

Protein-adsorbing material and method for producing the same

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Chiba, Japan

Kyoichi Saito