Background: Aminoacyl-tRNA (aa-tRNA) enters the ribosome in a ternary complex with the Gprotein Elongation Factor Tu (EF-Tu) and GTP. Results: EF-Tu-GTP-aa-tRNA ternary complex formation and decay rates are accelerated in the presence of the nucleotide exchange factor Elongation Factor-Ts (EF-Ts). Conclusion: EF-Ts directly facilitates the formation and disassociation of ternary complex. Signif...

Soil samples in Moryayla village located 156 km northeast of Erzurum and Cu mineralization area around it were collected randomly. In these samples, 20 taken order to investigate the metals found pollution limits sources that cause this pollution. The geochemical analyzes (Cd, Cr, Cu, Ni, Pb, Zn Fe) soil made evaluated with parameters. calculation parameters, enrichment factor (EF); geoaccumula...

This study focused on the soil of Al-Khassa Sub Basin, thirty-four samples were collected from different areas land use and differences in human activity. Physicochemical properties examined Hydrogen Potential (pH), Organic Matter (O.M), Loss Of Ignition (L.O.I), Total Carbon (TOC), Cation Exchange Capacity (CEC) Hydrocarbon (THC). (pH) showed that is alkaline above seven with a mean 7.98. (O.M...

Abstract A simple, sensitive, and greener method for green extraction preconcentration of lead from aqueous media further assay by UV-Vis spectrophotometer has been developed using 1,5 diphenylthiocarbazone (dithizone). Several factors dispersive liquid-liquid microextraction (DLLME) including the type volume solvents, shaking time, concentration dithizone as a complexing agent, pH were optimiz...

Global water shortage is caused not just by the physical scarcity of water, but also gradual deterioration quality resources such as lakes, streams and rivers with heavy metals. This present study evaluated status Mn, Fe, Cr, Cu, Ni, As, Zn, Pb Cd in sediments from lower Orange River Inductively Coupled Plasma Atomic Emission Spectrometry technique collecting a total eleven samples, each weighi...

The river environment is complex and receives a variety of contaminants from numerous sources that are persistent, bioaccumulative, toxic. distribution, source, contamination, ecological risk status Zn, Pb, Cu, Ni, Cr, Cd were evaluated in the surface sediments at 45 sites on Moyang Jian rivers Western Guangdong, China. Single pollution indices, including contamination factor (CF) enrichment (E...

concentrations of zn, cu, cr, cd, pb and fe in surface marine sediments of the southern coast of sfax were studied in order to understand current metal contamination at the outlet of a mixed industrial and domestic wastewater effluent discharged into the seawater since 1953. we found that heavy metal concentrations (mg/kg dry weight) in surface marine sediments varied from 42 to 391 for zn, 15 ...

concentrations of zn, cu, cr, cd, pb and fe in surface marine sediments of the southern coast of sfax were studied in order to understand current metal contamination at the outlet of a mixed industrial and domestic wastewater effluent discharged into the seawater since 1953. we found that heavy metal concentrations (mg/kg dry weight) in surface marine sediments varied from 42 to 391 for zn, 15 ...