Search results
Results from the WOW.Com Content Network
NSP2 is an octameric ring with a central cavity. [4] This octameric protein forms through the stacking of the same sides of two tetrameric rings. Across this tetramer-tetramer interface there are four basic grooves which run diagonally. These basic grooves in the octamer could act as RNA binding sites. [5]
A tetramer (/ ˈ t ɛ t r ə m ər /) (tetra-, "four" + -mer, "parts") is an oligomer formed from four monomers or subunits. The associated property is called tetramery. An example from inorganic chemistry is titanium methoxide with the empirical formula Ti(OCH 3) 4, which is tetrameric in solid state and has the molecular formula Ti 4 (OCH 3 ...
A central pore, 10 Å wide, is located near the center of the transmembrane channel, where the energy barrier is highest for the transversing ion due to the hydrophobity of the channel wall. The water-filled cavity and the polar C-terminus of the pore helices ease the energetic barrier for the ion.
Companies like Numat and Tetramer are utilizing MOFs and other reticular materials in the development of advanced filtration systems. [29] [30] These materials can adsorb hazardous gases and chemicals, offering enhanced protection for individuals in toxic or hazardous environments. Their high surface area and tunable pore sizes make them highly ...
Like other crown ethers, 12-crown-4 complexes with alkali metal cations. The cavity diameter of 1.2-1.5 Å gives it a high selectivity towards the lithium cation (ionic diameter 1.36 Å) [2] Its point group is S 4. The dipole moment of 12-crown-4 varies with solvent and temperature.
The tetramer decomposes, sometime explosively, when heated below at 175 - 200°C, resulting in platinum metal, ethane, and iodomethane. [1] When exposed to UV light in solution, the tetramer can undergo photolysis of two methyl radicals by reductive elimination , forming the brief Pt(II)(CH 3 )I species. [ 9 ]
The crystallographic structure of p11 protein tetramer. Disulfide bonds between the pair of dimers (cyan and green) is represented by yellow sticks. The N-terminus of annexin II is magenta colored. [11] The p11 protein can be found as a free monomer, a homodimer, or a heterotetramer composed of a p11 dimer complex with two molecules of annexin II.
A number of years later, John Cornforth showed that the product from p-tert-butylphenol and formaldehyde is a mixture of the cyclic tetramer and another ambiguous cyclomer. His interest in these compounds was in the tuberculostatic properties of their oxyethylated derivatives.