Occurrence of two missense mutations in Cu-ATPase of the macular mouse, a Menkes disease model.
We have investigated the genetic defect of the Cu-ATPase gene (Atp7a) in the macular mouse, a genetic model of classical Menkes disease. Northern blot analysis showed that its placenta and kidney possess a normal amount of the Cu-ATPase mRNA of the normal size; sequencing analysis revealed two missense mutations, His674Arg and Ser1381 Pro, in a PCR-amplified cDNA for mutant Cu-ATPase. The latter mutation was suspected to affect the function of the ATPase, because it lies in the transmembrane segment that is thought to form a channel for the transportation of copper ions.
Ohta
Y
Y
Department of Biochemistry, Wakayama Medical College, Japan.
Shiraishi
N
N
Nishikimi
M
M
D000251:Adenosine Triphosphatases / Q000235:genetics*; D000595:Amino Acid Sequence; D019943:Amino Acid Substitution / Q000235:genetics; D000818:Animals; D002352:Carrier Proteins / Q000235:genetics*; D027682:Cation Transport Proteins; D000073840:Copper-Transporting ATPases; D004195:Disease Models, Animal; D006801:Humans; D007706:Menkes Kinky Hair Syndrome / Q000201:enzymology* / Q000235:genetics*; D051379:Mice; D008817:Mice, Mutant Strains; D008969:Molecular Sequence Data; D017354:Point Mutation; D016133:Polymerase Chain Reaction; D012333:RNA, Messenger / Q000096:biosynthesis; D011993:Recombinant Fusion Proteins; D017386:Sequence Homology, Amino Acid
C486201:Atp7a protein, mouse; D002352:Carrier Proteins; D027682:Cation Transport Proteins; D012333:RNA, Messenger; D011993:Recombinant Fusion Proteins; D000251:Adenosine Triphosphatases; C081184:ATP7A protein, human; D000073840:Copper-Transporting ATPases