Patent ID: 7485714

Claim:
An isolated mammalian DNA selected from the group consisting of: (a) a DNA encoding a protein comprising the amino acid sequence of SEQ ID NO: 2or 4; (b) a DNA containing the full length coding region of the nucleotide sequence of SEQ ID NO: 1 or 3; (c) a DNA encoding a protein comprising the amino acid sequence that has a sequence homology of 95% or more to the entirety of the amino acid sequence of SEQ ID NO: 2 or 4; and wherein the protein represses the transcriptional activity of a CMV promoter and has binding activity to a GC-box of the Waf-1 promoter; (d) a DNA encoding a protein fragment comprising the amino acid sequence of residues 271 to 398 of SEQ ID NO: 2; and (e) a DNA consisting of nucleotides 811-1194 of SEQ ID NO: 3.