uranyl ions ( uo2+ ( 2 ) ) and lanthanide cations ( la3+ , nd3+ , sm3+ , eu3+ , tb3+ and dy3+ ) at 100-200 microm concentration inhibited active transport of ca2+ , mediated by respiratory linked substrates as well as by atp hydrolysis , without affecting respiration and membrane-bound atpase activity , in inside-out membrane vesicles of mycobacterium phlei .
C1510699
atp hydrolysis
C0001473
atpase