Amino Acid Sequence|Animals|Apoptosis|Arabidopsis Proteins|Caenorhabditis elegans Proteins|Conserved Sequence|Drosophila Proteins|Humans|Molecular Sequence Data|Neoplasms|Peptides|Plasmodium|Protein Structure, Tertiary|Proteins|Protozoan Proteins|Saccharomyces cerevisiae Proteins|Sequence Homology, Amino Acid|Signal Recognition Particle|Transcription, Genetic|Xenopus Proteins