Thr-774 (transmembrane segment M5), Val-920 (M8), and Glu-954 (M9) are involved in Na+ transport, and Gln-923 (M8) is essential for Na,K-ATPase activity

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Thr-774 (transmembrane segment M5), Val-920 (M8), and Glu-954 (M9) are involved in Na+ transport, and Gln-923 (M8) is essential for Na,K-ATPase activity is …
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scholarly articleQ13442814

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P356DOI10.1074/JBC.M500137200
P698PubMed publication ID15764602

P2093author name stringTetsuya Yamamoto
Kazuyasu Sakaguchi
Kazuya Taniguchi
Shunji Kaya
Toshiaki Imagawa
P2860cites workReplacement of several single amino acid side chains exposed to the inside of the ATP-binding pocket induces different extents of affinity change in the high and low affinity ATP-binding sites of rat Na/K-ATPaseQ38364012
Structure-function relationships of cation translocation by Ca(2+)- and Na+, K(+)-ATPases studied by site-directed mutagenesis.Q40600097
Residues of the fourth transmembrane segments of the Na,K-ATPase and the gastric H,K-ATPase contribute to cation selectivityQ40906072
Asp804 and Asp808 in the transmembrane domain of the Na,K-ATPase alpha subunit are cation coordinating residuesQ41150449
Substitutions of glutamate 781 in the Na,K-ATPase alpha subunit demonstrate reduced cation selectivity and an increased affinity for ATP.Q41229967
Functional consequences of mutation Asn326-->Leu in the 4th transmembrane segment of the alpha-subunit of the rat kidney Na+, K(+)-ATPase.Q41349835
Glutamic acid 327 in the sheep alpha 1 isoform of Na+,K(+)-ATPase is a pivotal residue for cation-induced conformational changesQ41918971
Mutation of aspartate 804 of Na(+),K(+)-ATPase modifies the cation binding pocket and thereby generates a high Na(+)-ATPase activityQ42055979
Critical effects on catalytic function produced by amino acid substitutions at Asp804 and Asp808 of the alpha1 isoform of Na,K-ATPaseQ42811431
Alanine scanning mutagenesis of oxygen-containing amino acids in the transmembrane region of the Na,K-ATPaseQ42813630
The Amino Acid Sequence 442GDASE446 in Na/K-ATPase Is an Important Motif in Forming the High and Low Affinity ATP Binding PocketsQ44605200
Structure-function relationships of E1-E2 transitions and cation binding in Na,K-pump proteinQ47729683
Mutation to the glutamate in the fourth membrane segment of Na+,K+-ATPase and Ca2+-ATPase affects cation binding from both sides of the membrane and destabilizes the occluded enzyme formsQ47732405
cDNA cloning and sequence determination of pig gastric (H+ + K+)-ATPaseQ48310634
Significance of the glutamic acid residues Glu334, Glu959, and Glu960 of the alpha subunits of Torpedo Na+, K+ pumps for transport activity and ouabain bindingQ48946231
Substitution of glutamic 779 with alanine in the Na,K-ATPase alpha subunit removes voltage dependence of ion transportQ50193017
The M4M5 cytoplasmic loop of the Na,K-ATPase, overexpressed in Escherichia coli, binds nucleoside triphosphates with the same selectivity as the intact native protein.Q54136915
Substitutions of serine 775 in the alpha subunit of the Na,K-ATPase selectively disrupt K+ high affinity activation without affecting Na+ interaction.Q54162226
Mutant Glu781-->Ala of the rat kidney Na+,K(+)-ATPase displays low cation affinity and catalyzes ATP hydrolysis at a high rate in the absence of potassium ions.Q54182264
Site-directed mutagenesis of the Na,K-ATPase: consequences of substitutions of negatively-charged amino acids localized in the transmembrane domains.Q54223687
Site-directed mutagenesis of a predicted cation binding site of Na, K-ATPase.Q54249506
DNA sequencing with chain-terminating inhibitorsQ22066207
Homology modeling of the cation binding sites of Na+K+-ATPaseQ24541473
A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of protein-dye bindingQ25938984
Crystal structure of the calcium pump of sarcoplasmic reticulum at 2.6 A resolutionQ27625023
ATP-induced conformational changes of the nucleotide-binding domain of Na,K-ATPaseQ27641133
Structural organization, ion transport, and energy transduction of P-type ATPasesQ28279229
Two Ca2+ ATPase genes: homologies and mechanistic implications of deduced amino acid sequencesQ28285061
The oligomeric nature of Na/K-transport ATPaseQ32066131
Structure and mechanism of Na,K-ATPase: functional sites and their interactionsQ34170045
Structure-function relationships of Na(+), K(+), ATP, or Mg(2+) binding and energy transduction in Na,K-ATPase.Q34180462
Structural similarities of Na,K-ATPase and SERCA, the Ca(2+)-ATPase of the sarcoplasmic reticulumQ34271890
Evolution of substrate specificities in the P-type ATPase superfamily.Q34451276
Biochemistry of Na,K-ATPaseQ34667442
Molecular cloning of three distinct forms of the Na+,K+-ATPase alpha-subunit from rat brainQ36426324
Occluded cations in active transportQ36587813
Glutamic acid 327 in the sheep alpha 1 isoform of Na+,K(+)-ATPase stabilizes a K(+)-induced conformational changeQ36715565
A Glu329-->Gln variant of the alpha-subunit of the rat kidney Na+,K(+)-ATPase can sustain active transport of Na+ and K+ and Na+,K(+)-activated ATP hydrolysis with normal turnover numberQ36720984
Glutamate 329 located in the fourth transmembrane segment of the alpha-subunit of the rat kidney Na+,K+-ATPase is not an essential residue for active transport of sodium and potassium ions.Q36755831
Chemical modification of Glu-953 of the alpha chain of Na+,K(+)-ATPase associated with inactivation of cation occlusionQ37127272
Does binding of ouabain to human alpha1-subunit of Na+, K+-ATPase affect the ATPase activity of adjacent rat alpha1-subunit?Q38336738
P433issue19
P407language of work or nameEnglishQ1860
P921main subjecttransmembrane proteinQ424204
transmembrane transportQ14820680
P304page(s)18736-18744
P577publication date2005-03-11
P1433published inJournal of Biological ChemistryQ867727
P1476titleThr-774 (transmembrane segment M5), Val-920 (M8), and Glu-954 (M9) are involved in Na+ transport, and Gln-923 (M8) is essential for Na,K-ATPase activity
P478volume280

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cites work (P2860)
Q37823210A structural overview of the plasma membrane Na+,K+-ATPase and H+-ATPase ion pumps.
Q33943950A third Na+-binding site in the sodium pump
Q27686727Crystal structure of Na+, K(+)-ATPase in the Na(+)-bound state
Q59060684Crystal structure of a Na+-bound Na+,K+-ATPase preceding the E1P state
Q22337247Crystal structure of the sodium–potassium pump
Q90134521Distinct effects of Q925 mutation on intracellular and extracellular Na+ and K+ binding to the Na+, K+-ATPase
Q37584567Glutamate Water Gates in the Ion Binding Pocket of Na+ Bound Na+, K+-ATPase
Q28573689K+-Cl- Cotransporter-3a Up-regulates Na+,K+-ATPase in Lipid Rafts of Gastric Luminal Parietal Cells
Q36483480Na⁺/K⁺-ATPase E960 and phospholemman F28 are critical for their functional interaction
Q35185241Origins and functional diversification of salinity-responsive Na(+) , K(+) ATPase α1 paralogs in salmonids.
Q39727450Residues contributing to the Na(+)-binding pocket of the SLC24 Na(+)/Ca(2+)-K(+) Exchanger NCKX2.
Q37253968The C terminus of Na+,K+-ATPase controls Na+ affinity on both sides of the membrane through Arg935.
Q34074365The rapid-onset dystonia parkinsonism mutation D923N of the Na+, K+-ATPase alpha3 isoform disrupts Na+ interaction at the third Na+ site
Q38006335The second sodium pump: from the function to the gene.
Q33950710The two C-terminal tyrosines stabilize occluded Na/K pump conformations containing Na or K ions