title: Nucleotide sequence and the encoded amino acids of human apolipoprotein A-I mRNA.
abstract: The cDNA clones encoding the precursor form of human liver apolipoprotein A-I (apoA-I), preproapoA-I, have been isolated from a cDNA library. A 17-base synthetic oligonucleotide based on residues 108-113 of apoA-I and a 26-base primer-extended, dideoxynucleotide-terminated cDNA were used as hybridization probes to select for recombinant plasmids bearing the apoA-I sequence. The complete nucleic acid sequence of human liver preproapoA-I has been determined by analysis of the cloned cDNA. The sequence is composed of 801 nucleotides encoding 267 amino acid residues. PreproapoA-I contains an 18-amino-acid prepeptide and a 6-amino-acid propeptide connected to the amino terminus of the 243-amino acid mature apoA-I. Southern blotting analysis of chromosomal DNA obtained from peripheral blood indicated the apoA-I gene is contained in a 2.1-kilobase-pair Pst I fragment and there is no gross difference in structural organization between the normal apoA-I gene and the Tangier disease apoA-I gene.
mesh_terms: D000328:Adult; D000595:Amino Acid Sequence; D016632:Apolipoprotein A-I; D001053:Apolipoproteins / Q000235:genetics*; D001483:Base Sequence; D003001:Cloning, Molecular; D004247:DNA / Q000378:metabolism; D005260:Female; D006801:Humans; D008099:Liver / Q000378:metabolism; D011061:Poly A / Q000235:genetics; D012313:RNA / Q000235:genetics; D012333:RNA, Messenger / Q000235:genetics*
chemical_list: D016632:Apolipoprotein A-I; D001053:Apolipoproteins; D012333:RNA, Messenger; D011061:Poly A; D012313:RNA; D004247:DNA