8d3y | pdb_00008d3y

Human alpha3 Na+/K+-ATPase in its exoplasmic side-open state

spinqualitylabelsall models 8d3y, resolution 3.90Å Show:Asymmetric Unit Biological Assembly Drag the structure with the mouse to rotate   Export Animated Image   Print3D Structural highlights 8d3y is a 3 chain structure with sequence from Homo sapiens. Full crystallographic information is available from OCA. For a guided tour on the structure components use FirstGlance. Method: Electron Microscopy, Resolution 3.9Å Ligands: BFD Resources: FirstGlance, OCA, PDBe, RCSB, PDBsum, ProSAT Disease AT1A3_HUMAN Non-specific early-onset epileptic encephalopathy;Cerebellar ataxia-areflexia-pes cavus-optic atrophy-sensorineural hearing loss syndrome;Alternating hemiplegia of childhood;Rapid-onset dystonia-parkinsonism. The disease is caused by variants affecting the gene represented in this entry. The disease is caused by variants affecting the gene represented in this entry. The disease is caused by variants affecting the gene represented in this entry. The disease is caused by variants affecting the gene represented in this entry. Function AT1A3_HUMAN This is the catalytic component of the active enzyme, which catalyzes the hydrolysis of ATP coupled with the exchange of sodium and potassium ions across the plasma membrane. This action creates the electrochemical gradient of sodium and potassium ions, providing the energy for active transport of various nutrients. Publication Abstract from PubMed P2-type ATPase sodium-potassium pumps (Na(+)/K(+)-ATPases) are ion-transporting enzymes that use ATP to transport Na(+) and K(+) on opposite sides of the lipid bilayer against their electrochemical gradients to maintain ion concentration gradients across the membranes in all animal cells. Despite the available molecular architecture of the Na(+)/K(+)-ATPases, a complete molecular mechanism by which the Na(+) and K(+) ions access into and are released from the pump remains unknown. Here we report five cryo-electron microscopy (cryo-EM) structures of the human alpha3 Na(+)/K(+)-ATPase in its cytoplasmic side-open (E1), ATP-bound cytoplasmic side-open (E1*ATP), ADP-AlF(4)(-) trapped Na(+)-occluded (E1*P-ADP), BeF(3)(-) trapped exoplasmic side-open (E2P) and MgF(4)(2-) trapped K(+)-occluded (E2*P(i)) states. Our work reveals the atomically resolved structural detail of the cytoplasmic gating mechanism of the Na(+)/K(+)-ATPase. Structural basis for gating mechanism of the human sodium-potassium pump.,Nguyen PT, Deisl C, Fine M, Tippetts TS, Uchikawa E, Bai XC, Levine B Nat Commun. 2022 Sep 8;13(1):5293. doi: 10.1038/s41467-022-32990-x. PMID:36075933 From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine. See Also ATPase 3D structures

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