https://www.ncbi.nlm.nih.gov/Structure/pdb/7D93
7D93: Crystal Structure of the Na+,K+-ATPase in the E2P state with bound Mg2+ and anthroylouabain...
FXYD domain-containing ion transport regulatorSodium/potassium-transporting ATPase subunit alpha-1Sodium/potassium-transporting ATPase subunit...