The cyanobacterium,Synechococcussp. PCC7942, possesses two distinct genes encoding cation-transporting P-type ATPases
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چکیده
منابع مشابه
Ion Motive ATPases: V- and P-type ATPases
Biological membranes are composed of phospholipid bilayers and mark the boundaries between the cell or organelle and its exterior. There is little, if any, free diffusion of ions or hydrophilic solutes across phospholipid bilayers. Thus, to enable the cell to control the composition of its intracellular environment, nature has evolved membrane proteins that form specialized pathways across them...
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Two homologs of the outer membrane protein OmpA were identified in Aeromonas salmonicida by sodium dodecyl sulfate-polyacrylamide gel electrophoresis, immunoblotting, and amino-terminal sequence analyses. An A. salmonicida genomic DNA library was constructed by using lambda GEM-11 and recombinant phage carrying both genes ompAI and ompAII) selected by immunoscreening. A 5.0-kb BamHI fragment co...
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The copper-transporting P-type ATPases (Cu-ATPases), ATP7A and ATP7B, are essential for the regulation of intracellular copper homeostasis. In this report we describe new roles for glutathione (GSH) and glutaredoxin1 (GRX1) in Cu homeostasis through their regulation of Cu-ATPase activity. GRX1 is a thiol oxidoreductase that catalyzes the reversible reduction of GSH-mixed disulfides to their res...
متن کاملBiochemical characterization of P-type copper ATPases
Copper ATPases, in analogy with other members of the P-ATPase superfamily, contain a catalytic headpiece including an aspartate residue reacting with ATP to form a phosphoenzyme intermediate, and transmembrane helices containing cation-binding sites [TMBS (transmembrane metal-binding sites)] for catalytic activation and cation translocation. Following phosphoenzyme formation by utilization of A...
متن کاملP-type ATPases at a glance.
In the poster that accompanied this article the centre panel, entitled 'Structural and functional features' contains the sub-panel 'Energy coupling' in which the bottom structure should not be labelled 'E1P open' but 'E2P open'.
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ژورنال
عنوان ژورنال: FEBS Letters
سال: 1993
ISSN: 0014-5793
DOI: 10.1016/0014-5793(93)80928-n