Partial Characterization of a Potassium-stimulated Adenosine Triphosphatase from the Plasma Membrane of Meristematic and Mature Soybean Root Tissue
AUTOR(ES)
Travis, Robert L.
RESUMO
A K+-stimulated adenosine triphosphatase was partially characterized in plasma membrane from meristematic and mature soybean root tissue. The substrate concentrations required for maximum enzyme activity (3 millimolar Mg·ATP) and pH optimum (6.5) were similar for both systems. Enrichment studies, performed to ensure that the membrane vesicle preparations were comparable, indicated similar purity levels at selected steps during purification. Phospholipid and sterol analyses further substantiated their similarity.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=542872Documentos Relacionados
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