title: Organization of the gene coding for human protein C inhibitor (plasminogen activator inhibitor-3). Assignment of the gene to chromosome 14.
abstract: Protein C inhibitor (plasminogen activator inhibitor-3) is a plasma glycoprotein and a member of the serine proteinase inhibitor superfamily. In the present study, the human gene for protein C inhibitor was isolated and characterized from three independent phage that contained overlapping inserts coding for the entire gene. The genomic DNA was isolated and studied by restriction mapping, polymerase chain reaction analysis, and DNA sequencing. The gene was 11.5 kilobases in length and consisted of five exons separated by four introns. In addition, 0.8 kilobases of DNA from the 5'-flanking region were sequenced. The exon-intron boundaries all observed the "GT-AG" rule. The gene for protein C inhibitor was assigned to chromosome 14 by polymerase chain reaction analysis of human/hamster hybrid cell lines. The organization of the gene for protein C inhibitor is similar to the genes coding for alpha 1-antitrypsin and alpha 1-antichymotrypsin. The genes for these two proteins are also localized on chromosome 14 suggesting a recent evolution of the genes for these three proteins from a common ancestor.
authors.affiliation: Department of Biochemistry, University of Washington, Seattle 98195.
authors.forename: J C
authors.initials: JC
authors.lastname: Meijers
authors.forename: D W
authors.initials: DW
authors.lastname: Chung
mesh_terms: D000595:Amino Acid Sequence; D001483:Base Sequence; D001798:Blood Proteins / Q000235:genetics*; D002874:Chromosome Mapping; D002883:Chromosomes, Human, Pair 14; D004247:DNA / Q000235:genetics; D005091:Exons; D006801:Humans; D007438:Introns; D008969:Molecular Sequence Data; D010957:Plasmids; D016133:Polymerase Chain Reaction; D011486:Protein C / Q000037:antagonists & inhibitors*; D018046:Protein C Inhibitor; D012313:RNA / Q000235:genetics; D012326:RNA Splicing; D015842:Serine Proteinase Inhibitors; D014158:Transcription, Genetic; D000514:alpha 1-Antichymotrypsin / Q000235:genetics; D000515:alpha 1-Antitrypsin / Q000235:genetics
chemical_list: D001798:Blood Proteins; D011486:Protein C; D018046:Protein C Inhibitor; D015842:Serine Proteinase Inhibitors; D000514:alpha 1-Antichymotrypsin; D000515:alpha 1-Antitrypsin; D012313:RNA; D004247:DNA