title: Expression and cDNA cloning of human HMGI-C phosphoprotein.
abstract: The HMGI family contains three members: I, Y and I-C. HMGI and HMGY are alternative splicings of the same gene and are essential transcription factors at several genetic loci. HMGI-C is transcribed from a different gene and is observed only in highly transformed cells. This work shows that human I-C is present in a more restricted range of cell types than I/Y and is absent from hemopoietic cells, as noted for mouse I-C. However, high expression in a human hepatoma line allowed the cloning of the cDNA and 812 bp of 5'-untranslated, 330 bp of coding and 58 bp of 3'-untranslated DNA were sequenced. The open reading frame showed 4 amino acid substitutions and one additional amino acid when compared to mouse I-C, none of them in the basic DNA binding motifs.
authors.affiliation: Biophysics Laboratories, University of Portsmouth, UK.
authors.forename: U A
authors.initials: UA
authors.lastname: Patel
authors.forename: A
authors.initials: A
authors.lastname: Bandiera
authors.forename: G
authors.initials: G
authors.lastname: Manfioletti
authors.forename: V
authors.initials: V
authors.lastname: Giancotti
authors.forename: K Y
authors.initials: KY
authors.lastname: Chau
authors.forename: C
authors.initials: C
authors.lastname: Crane-Robinson
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D002460:Cell Line; D003001:Cloning, Molecular; D017931:DNA Primers / Q000737:chemistry; D018076:DNA, Complementary / Q000235:genetics; D004268:DNA-Binding Proteins / Q000737:chemistry / Q000235:genetics; D015870:Gene Expression; D005796:Genes; D025743:HMGA2 Protein; D006609:High Mobility Group Proteins / Q000235:genetics*; D006801:Humans; D008969:Molecular Sequence Data; D012333:RNA, Messenger / Q000235:genetics; D016415:Sequence Alignment; D017386:Sequence Homology, Amino Acid
chemical_list: D017931:DNA Primers; D018076:DNA, Complementary; D004268:DNA-Binding Proteins; D025743:HMGA2 Protein; D006609:High Mobility Group Proteins; D012333:RNA, Messenger