SelB is a specialized translation elongation factor that delivers selenocysteyl-tRNA(Sec) (Sec-tRNA(Sec)) to the ribosome. Here we show that Sec-tRNA(Sec) binds to SelB.GTP with an extraordinary high affinity (K(d) = 0.2 pm). The tight binding is driven enthalpically and involves the net formation of four ion pairs, three of which may involve the Sec residue. The dissociation of tRNA from the t...

the distribution of gallium(b) and indium (b) between hydrochloric or sulphuric acid solution with sec-nonylphenoxy acetic acid(ca-100) in kerosene has been investigated under various conditions. ca-100 is a new organocarboxylic extractant, which has been shown to be efficient for gallium(b) and indium(b) whereas germanium(c), which was not extracted. the extraction system is studied as a funct...

<sec>The thin layer problem is common in some engineering cases, such as a coating target or dielectric radome. If the skin depth of medium behind much smaller than scale, transmission line impedance boundary can be used to solve . When both sides are free space greater comparable scale medium, condition not applicable. Such problems need incident and reflected wave data also known penetr...

the effects of tilia plathphyllos scop. in a nervous disorder, including seizure was reported in traditional literatures. in the present investigation, the effects of methanolic extract of t. plathyphyllos on seizure induced by picrotoxin and pentylentetrazole were studied in mice. in this experimental study, groups of 5 animals pretreated with doses of 100, 200 and 300 mg/kg of methanolic extr...