Acinetobacter sp. strain MJT/F5/199A carries an array of tetragonally arranged subunits on its outer surface. The subunits can be detached from isolated cell walls by incubation with 1 M urea or by washing with water after treatment with 10 mM ethylenediaminetetraacetic acid or ethyleneglycol-bis(beta-aminoethylether)N,N'-tetraacetic acid. After removal of the urea, they reaggregate into the sa...

Chromaffin granules isolated from beef adrenal medulla took up C(14)-labeled catecholamines from an isotonic medium at 37 degrees C at a rate approximately 20 times the rate at 0 degrees C. The uptake was stimulated three- to five-fold by Mg(++) and adenosine triphosphate. Reserpine (1 x 10(-5)M) caused a 90 percent inhibition of uptake; ethylenediaminetetraacetic acid completely inhibited the ...

The infrared and Raman spectra of Na[FeEDTA(H(2)O)]x2H(2)O and Na(4)[(FeEDTA)(2)O]x3H(2)O (EDTA=tetra anion of ethylenediaminetetraacetic acid), two complexes proposed as adequate for iron supplementation, were recorded and analyzed in relation to its structural peculiarities. Some comparisons between the recorded spectra are also presented, and the characteristics of the carboxylate motions as...

Exposure to environmental and occupational toxicants is responsible for adverse effects on human health. Chelation therapy is the only procedure able to remove toxic metals from human organs and tissue, aiming to treat damage related to acute and/or chronic intoxication. The present review focuses on the most recent evidence of the successful use of the chelating agent ethylenediaminetetraaceti...

Objective: To compare the effect of Maleic acid and Irritrol (combination Chlorhexidine & Ethylenediaminetetraacetic acid) irrigation on sealing ability Biodentine when used as root-end filling material. Material Methods: Thirty single-rooted human premolars were subjected to standardized root canal instrumentation irrigated with 2.5% Sodium Hypochlorite (NaOCl) after each instrument change. Ap...

Partially purified inactive glucose dehydrogenase obtained from spores which were heated at 87 or 90 C for 30 min is converted to an active form by the addition of ethylenediaminetetraacetic acid, dipicolinic acid, or some salts. The molecular weight of the inactive glucose dehydrogenase in the heated spores is about one-half of that of the active glucose dehydrogenase in the intact resting spo...

A phage-induced cell wall solubilizing enzyme isolated from phage-infected Staphylococcus aureus phage type 80 was purified 588-fold. The pH optimal activity was 6.8 to 7.3, and pH optimal stability, 6.5 to 7.5. It was inhibited by p-hydroxymercuribenzoate, ethylenediaminetetraacetic acid, and specific rabbit antisera. The cell wall lytic reaction is a peptidase resulting in cleavage of the cel...

Purified simian virus 40 has associated with it an endonuclease activity which converts form I (double-stranded, circular) simian virus 40 deoxyribonucleic acid to a nicked form that sediments as a homogeneous peak in alkaline sucrose gradients. The enzyme is dependent on magnesium ions for activity and is completely inhibited by ethylenediaminetetraacetic acid (0.02 m) or heat (80 C for 10 min...