Amino Acid Motifs|Animals|Base Sequence|Carrier Proteins|Chromosome Mapping|Evolution, Molecular|Histone Methyltransferases|Histone-Lysine N-Methyltransferase|Mice|Molecular Sequence Data|Nuclear Proteins|Protein Methyltransferases|Repressor Proteins|Sea Urchins|Sequence Analysis, DNA|Sequence Homology, Nucleic Acid|Transcription Factors