title: The KH domain occurs in a diverse set of RNA-binding proteins that include the antiterminator NusA and is probably involved in binding to nucleic acid.
abstract: New findings are presented for the approximately 50 residue KH motif, a domain recently discovered in RNA-binding proteins. The conserved sequence is approximately 10 residues larger than previously reported. Profile searches have revealed new members of this family, including two, E. coli NusA and human GAP-associated p62 phosphoprotein, for which RNA-binding data exists. A nusA homolog was detected in the RNA polymerase gene complex of six archaebacterial species and may encode an antiterminator. All KH-containing proteins are linked with RNA and the KH motif most probably functions as a nucleic acid binding domain.
authors.affiliation: European Molecular Biology Laboratory, Heidelberg, Germany.
authors.forename: T J
authors.initials: TJ
authors.lastname: Gibson
authors.forename: J D
authors.initials: JD
authors.lastname: Thompson
authors.forename: J
authors.initials: J
authors.lastname: Heringa
mesh_terms: D001426:Bacterial Proteins / Q000737:chemistry*; D029968:Escherichia coli Proteins; D008969:Molecular Sequence Data; D010445:Peptide Elongation Factors; D016601:RNA-Binding Proteins / Q000737:chemistry*; D012091:Repetitive Sequences, Nucleic Acid; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid; D014157:Transcription Factors / Q000737:chemistry*; D035602:Transcriptional Elongation Factors
chemical_list: D001426:Bacterial Proteins; D029968:Escherichia coli Proteins; D010445:Peptide Elongation Factors; D016601:RNA-Binding Proteins; D014157:Transcription Factors; D035602:Transcriptional Elongation Factors; C068727:nusA protein, E coli