The Front Cover shows magnesium-doped MnO2 nanorods that are used as an electrode material capable of intercalating/de-intercalating aluminum ions. open tunnel structure the nanomaterial well presence dopant magnesium cations facilitates this process, opening up possibility using in aqueous Al-ion batteries or supercapatteries. More information can be found Article by J. Joseph et al.

The shikimate pathway of bacteria, fungi, and plants generates chorismate, which is drawn into biosynthetic pathways that form aromatic amino acids and other important metabolites, including folates, menaquinone, and siderophores. Many of the pathways initiated at this branch point transform chorismate using an MST enzyme. The MST enzymes (menaquinone, siderophore, and tryptophan biosynthetic e...

Uptake of iron and several other minerals into kaiware daikon (Japanese radish sprout) was investigated by changing their supplementary conditions. The supplementation of calcium sulfate (0.1% (w/v), 230 ppm as calcium ion) and iron (III) chloride (0.1% (w/v), 200 ppm as iron ion) in hydroponics promoted the growth of kaiware daikon ca. 1.0-1.5 cm longer than the control group of no additions, ...

The structure of F₁-ATPase from Saccharomyces cerevisiae inhibited by the yeast IF₁ has been determined at 2.5 Å resolution. The inhibitory region of IF₁ from residues 1 to 36 is entrapped between the C-terminal domains of the α(DP)- and β(DP)-subunits in one of the three catalytic interfaces of the enzyme. Although the structure of the inhibited complex is similar to that of the bovine-inhibit...

The requirements for the transfer of (14)C-phenylalanine from yeast soluble ribonucleic acid to protein in vitro by rice (Oryza sativa L. var. Bluebonnet) ribosomes have been investigated. An absolute requirement for polyuridylic acid, 2-mercaptoethanol, guanosine triphosphate, magnesium, and potassium or ammonium ions and ribosomes has been demonstrated. Ribosomes washed in 0.5% sodium deoxych...

A brush border preparation from rat intestine was incubated with rat intrinsic factor-vitamin B12 complex in 0.01 M Tris-HCl buffer, pH 7.4. The 57Co-B12 uptake to brush borders was proportional to the amount of protein or to alkaline phosphatase activity in the preparations. The uptake increased with time of incubation. At 37degreesC, the uptake after incubation for 15 min was 80-85% of that f...

The hammerhead ribozyme is the smallest naturally occurring RNA endonuclease. It is found in subviral plant pathogens and transcripts of satellite DNA from a limited number of organisms. We have performed a database search for novel examples of this catalytic RNA, taking into consideration the recently defined structural requirements for an efficient cleavage under physiological magnesium ion c...

Muschel, Louis H. (University of Minnesota, Minneapolis), and Jean E. Jackson. Reversal of the bactericidal reaction of serum by magnesium ion. J. Bacteriol. 91:1399-1402. 1966.-Magnesium ion was found to reverse the bactericidal action of the antibody-complement system. Concentrations of 0.03 to 0.11 m MgSO(4) or MgCl(2) were effective, provided that the reaction of the antibody-complement sys...