Takeda Chemical Industries, Inc.

Takeda Pharmaceutical Company Limited

Yugo Habata

Masaki Hosoya

Chieko Kitada

Shuji Hinuma

Ryo Fujii

Haruo Onda

Shoji Fukusumi

Kazuhiro Ogi

Yuji Kawamata

Hiromi Yoshida

Kazuhiko Tatemoto

Yasunori Miyamoto

Tetsuya Ohtaki

Makoto Kobayashi

Yasushi Masuda

Yoshihiro Ishibashi

Norio Shimamoto

Kazunori Nishi

Masataka Harada

Shoichi Ohkubo

Hidetoshi Komatsu

Yuko Noguchi

By using FPRL1 ligand, which comprises the same or substantially the same amino acid sequence as the amino acid sequence represented by SEQ ID NO: 1, SEQ ID NO: 17 or SEQ ID NO: 21, and FPRL1, an efficient screening for FPRL1 agonist or FPRL1 antagonist can be performed.

FPRL1 ligands and use thereof

This invention relates to a novel polypeptide involving in the modulation of central nervous system function, circulatory function, immune function, gastrointestinal function, metabolic function, reproductive function, etc., it can be used as a drug for treating or preventing a variety of diseases, e.g. HIV infection or AIDS (acquired immune deficiency syndrome) or the like.

Polypeptides, their production and use

The use of a G-protein coupled receptor protein comprising the same or substantially the same amino acid sequence as the amino acid sequence represented by SEQ ID NO: 1, or a salt thereof and a ligand peptide comprising the amino acid sequence represented by any of SEQ ID NO: 3 to 7, or a salt thereof, enables efficient screening of an agonist or antagonist for the above receptor protein or a salt thereof.

Methods of screening for ligands for FPRL2

The RFRP-3 peptide of the present invention which is an agent for promoting prolactin secretion is useful as a prophylactic and/or therapeutic agent for various diseases associated with prolactin secretion, such as hypoovarianism, seminal vesicle hypoplasia, menopausal syndrome and hypothyroidism.

RFRP-3 and DNA thereof

The present invention relates to the ligand polypeptide for the human pituitary- and mouse pancreas-derived G protein-coupled receptor proteins. The ligand polypeptide or the DNA which codes for the ligand polypeptide can be used for (1) development of medicines such as pituitary function modulators, central nervious system function modulators, and pancreatic function modulators, and (2) development of receptor binding assay systems using the expression of recombinant receptor proteins and screening of pharmaceutical candidate compounds. In particular, by the receptor binding assay systems utilizing the expression of recombinant G protein-coupled receptor proteins in accordance with the invention, agonists and antagonists of G protein-coupled receptors which are specific to human and other warm-blooded animals can be screened and the agonists or antagonists obtained can be used as therapeutic and prophylactic agents for various diseases.

APJ ligand polypeptides

This invention discloses a PACAP receptor protein or a salt thereof, a DNA comprising a DNA fragment coding for the protein, a method for preparing the protein, antibody against the protein, and use of the protein, DNA, and antibodies. A PACAP receptor protein was purified from the bovine cerebrum. DNAs coding for PACAP receptor proteins were isolated from bovine, rat and human cDNA libraries, and their nucleotide sequences were determined. Further, amino acid sequences deduced from the nucleotide sequences were determined. The PACAP receptor proteins and the DNAs coding for the proteins of the present invention can be used for (1) acquisition of antibodies and antisera, (2) construction of expression systems of recombinant receptor proteins, (3) development of receptor binding assay systems using said expression systems and screening of potential compounds for drugs, (4) execution of drug design based on the comparison of ligands and receptors which are structurally similar to each other, (5) preparation of probes and PCR primers in gene diagnosis, and the like.

PACAP receptor protein, method for preparing said protein, and use thereof

The present invention relates to the ligand polypeptide for the human pituitary- and mouse pancreas-derived G protein-coupled receptor proteins. The ligand polypeptide or the DNA which codes for the ligand polypeptide can be used for (1) development of medicines such as pituitary function modulators, central nervous system function modulators, and pancreatic function modulators, and (2) development of recombinant receptor proteins and screening of pharmaceutical candidate compounds. In particular, by the receptor binding assay systems utilizing the expression of recombinant G protein-coupled receptor proteins in accordance with the invention, agonists and antagonists of G protein-coupled receptors which are specific to human and other warm-blooded animals can be screened and the agonists or antagonists obtained can be used as therapeutic and prophylactic agents for various diseases.

Polypeptides their production and use

This invention discloses a PACAP receptor protein or a salt thereof, a DNA comprising a DNA fragment coding for the protein, a method for preparing the protein, antibody against the protein and use of the protein, DNA and antibodies.

PACAP receptor protein, method for preparing said protein, and use

This invention discloses a PACAP receptor protein or a salt thereof, a DNA comprising a DNA fragment coding for the protein, a method for preparing the protein, antibody against the protein and use of the protein, DNA and antibodies. A PACAP receptor protein was purified from the bovine cerebrum. DNAs coding for PACAP receptor proteins were isolated from bovine, rat and human cDNA libraries, and their nucleotide sequences were determined. The PACAP receptor proteins and the DNAs coding for the proteins of the present invention can be used for (1) acquisition of antibodies and antisera, (2) construction of expression systems of recombinant receptor proteins, (3) development of receptor binding assay systems using said expression systems and screening of potential compounds for drugs, (4) execution of drug design based on the comparison of ligands and receptors which are structurally similar to each other, (5) preparation of probes and PCR primers in gene diagnosis, and the like.

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Tsukuba, Japan

Yugo Habata