Inatomi K I
Advanced Technology R & D Center, Mitsubishi Electric Corporation, Hyogo, Japan.
J Bacteriol. 1996 Apr;178(8):2424-6. doi: 10.1128/jb.178.8.2424-2426.1996.
ATP-dependent H+ -pump activity was found in inverted vesicles of Methanosarcina mazei Gö1 by using acridine orange as a fluorescent probe. The H+ -pump activity specifically required both Mg and sulfite ions, but azide, an inhibitor of F0F1-ATPase, did not inhibit the activity. The membranes prepared from M. mazei also had an Mg-ATPase activity, and at least the presence of vacuolar-type ATPase was detected.
通过使用吖啶橙作为荧光探针,在马氏甲烷八叠球菌Gö1的内翻囊泡中发现了ATP依赖性H⁺泵活性。H⁺泵活性特别需要镁离子和亚硫酸根离子,但F₀F₁ - ATP酶的抑制剂叠氮化物并不抑制该活性。从马氏甲烷八叠球菌制备的膜也具有Mg - ATP酶活性,并且至少检测到了液泡型ATP酶的存在。