The present invention relates to proteins, including a protein represented by any of SEQ ID NOs: 1 to 3; a protein exhibiting an amino acid identity of 90% or more to the amino acid sequence represented by any of SEQ ID NOs: 1 to 3 and also having a transcription regulation ability; or a protein having a transcription regulation ability and containing an amino acid sequence encoded by a DNA which hybridizes under a stringent condition with a DNA consisting of the nucleotide sequence represented by the nucleotide numbers 102 to 2507 in the nucleotide sequence represented by SEQ ID NO: 4, 51 to 2456 in the nucleotide sequence represented by SEQ ID NO: 5, or 35 to 2440 in the nucleotide sequence represented by SEQ ID NO: 6, or a DNA encoding the same.