Photoswitch protein

Abstract

It is an object of the present invention to provide a photoswitching protein that can control the binding and dissociation of proteins more efficiently than conventional photoswitching proteins. It is a photoswitching protein consisting of a single polypeptide, differing from the conventional photoswitching protein consisting of two different proteins. More specifically, the photoswitching protein of the present invention is, for example, a protein in which the C-terminus of the following protein (a) is directly or indirectly linked to the N-terminus of the following protein (b): (a) a protein comprising an amino acid sequence having a sequence identity of 80% or more to an amino acid sequence comprising a deletion of an X number of consecutive amino acid residues from the C-terminal residue to the N-terminal side of the amino acid sequence as set forth in SEQ ID No: 1 or SEQ ID No: 36, wherein X represents an integer of 0 or greater and 6 or smaller; and (b) a protein comprising an amino acid sequence having a sequence identity of 80% or more to an amino acid sequence comprising a deletion of a Y number of consecutive amino acid residues from the N-terminal residue to the C-terminal side of the amino acid sequence as set forth in SEQ ID No: 1 or SEQ ID No: 36, wherein Y represents an integer of 0 or greater and 55 or smaller.

Dependencies are inferred from the claim text.