title: Oligopeptide biases in protein sequences and their use in predicting protein coding regions in nucleotide sequences.
abstract: We have examined oligopeptides with lengths ranging from 2 to 11 residues in protein sequences that show no obvious evolutionary relationship. All sequences in the Protein Identification Resource database were carefully classified by sensitive homology searches into superfamilies to obtain unbiased oligopeptide counts. The results, contrary to previous studies, show clear prejudices in protein sequences. The oligopeptide preferences were used to help decide the significance of sequence homologies and to improve the more general methods for detecting protein coding regions within nucleotide sequences.
authors.affiliation: Biocomputing Division, European Molecular Biology Laboratory (EMBL), Heidelberg, Federal Republic of Germany.
authors.forename: P
authors.initials: P
authors.lastname: McCaldon
authors.forename: P
authors.initials: P
authors.lastname: Argos
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D008957:Models, Genetic; D008969:Molecular Sequence Data; D009842:Oligopeptides; D011506:Proteins / Q000235:genetics*; D012689:Sequence Homology, Nucleic Acid
chemical_list: D009842:Oligopeptides; D011506:Proteins