abstract |
(57) [Problem] To provide a novel bioactive peptide and its use. SOLUTION: The present invention relates to an amino acid comprising an amino acid sequence identical or substantially identical to the amino acid sequence represented by SEQ ID NO: 35, and represented by SEQ ID NO: 1, SEQ ID NO: 2, or SEQ ID NO: 3. The present invention relates to a peptide having the ability to bind to a receptor protein containing the same or substantially the same amino acid sequence as the sequence, a precursor thereof, an amide thereof, an ester thereof, or a salt thereof. DNA encoding the peptide of the present invention can be obtained by developing a receptor binding assay system using a recombinant receptor protein expression system and screening drug candidate compounds, reducing side effects, improving memory function, appetite improving agent or uterus, kidney , A prostate, a testis or a skeletal muscle. |