heavy metal-(Cd/Co/Hg/Pb/Zn)-translocating P-type ATPase
This model describes the P-type ATPase primarily responsible for translocating cadmium ions (and other closely-related divalent heavy metals such as cobalt, mercury, lead and zinc) across biological membranes. These transporters are found in prokaryotes and plants. Experimentally characterized members of the seed alignment include: SP|P37617 from E. coli, SP|Q10866 from Mycobacterium tuberculosis and SP|Q59998 from Synechocystis PCC6803. The cadmium P-type ATPases have been characterized as Type IB based on a phylogenetic analysis which combines the copper-translocating ATPases with the cadmium-translocating species. This model and that describing the copper-ATPases (TIGR01511) are well separated, and thus we further type the copper-ATPases as IB1 and the cadmium-ATPases as IB2. Several sequences which have not been characterized experimentally fall just below trusted cutoff for both of these models (SP|Q9CCL1 from Mycobacterium leprae, GP|13816263 from Sulfolobus solfataricus, OMNI|NTL01CJ01098 from Campylobacter jejuni, OMNI|NTL01HS01687 from Halobacterium sp., GP|6899169 from Ureaplasma urealyticum and OMNI|HP1503 from Helicobacter pylori). [Transport and binding proteins, Cations and iron carrying compounds]