title: Decreased exchange of adenine nucleotides in human placental mitochondria.
abstract: The purpose of this work was to study the exchange of adenine nucleotides in mitochondria isolated from human placenta tissue. The results indicate that ADP and ATP are translocated at a lower rate than those reported for rat liver mitochondria. It is proposed that the limited transport is due to the particular lipid composition of placental mitochondria membrane, which induces an arrest in membrane fluidity with the consequent restriction in adenine nucleotide translocase mobility.
mesh_terms: D000244:Adenosine Diphosphate / Q000378:metabolism*; D000255:Adenosine Triphosphate / Q000378:metabolism*; D001278:Atractyloside / Q000494:pharmacology; D005260:Female; D006801:Humans; D007700:Kinetics; D008928:Mitochondria / Q000187:drug effects / Q000378:metabolism*; D000226:Mitochondrial ADP, ATP Translocases / Q000378:metabolism*; D009713:Nucleotidyltransferases / Q000378:metabolism*; D010920:Placenta / Q000378:metabolism*; D011247:Pregnancy; D013816:Thermodynamics
chemical_list: D001278:Atractyloside; D000244:Adenosine Diphosphate; D000255:Adenosine Triphosphate; D000226:Mitochondrial ADP, ATP Translocases; D009713:Nucleotidyltransferases