Adjective(1) consisting of or especially arranged in sets of four,coming next after the third and just before the fifth inposition or time or degree or magnitude(2) consisting of or especially arranged in sets of four(3) coming next after the third and just before the fifth inposition or time or degree or magnitude
Noun(1) last 2 million years(2) the cardinal number that is the sum of three and one
Adjective(1) consisting of or especially arranged in sets of four,coming next after the third and just before the fifth inposition or time or degree or magnitude(2) consisting of or especially arranged in sets of four(3) coming next after the third and just before the fifth inposition or time or degree or magnitude
Noun(1) last 2 million years(2) the cardinal number that is the sum of three and one
(1) Glycinebetaine (N, N, N-trimethylglycine; hereafter betaine) is a quaternary ammonium compound that occurs naturally in a wide variety of plants, animals and microorganisms.(2) Phenols and phenolics, quaternary ammonium compounds, 1: 500 bleach - water solutions, and iodine and iodophors are used in low-level disinfection.(3) Studies of multidrug-resistant proteins have demonstrated two types of residues involved in binding to quaternary ammonium compounds.(4) One of the two vascular hemoglobins possesses a hexagonal-bilayer hemoglobin (HBL-Hb) quaternary structure, which is only found in the Annelida and Vestimentifera.(5) The fitting procedure shows that only the quaternary model built using the as a template, and modified to accommodate only one zinc ion in the catalytic site (Model B), agrees with the experimental data.(6) Because this enzyme shows no activity in its monomeric form, correct quaternary structure is essential for the formation of active enzyme.(7) Calsequestrin, the major calcium sequestering protein in the sarcoplasmic reticulum of muscle, forms a quaternary complex with the ryanodine receptor calcium release channel and the intrinsic membrane proteins triadin and junctin.(8) The inherent positive charge of the quaternary nitrogen and hydrophobic retinoid side chains in A2E suggest that it may behave as a surfactant.(9) Chatburn and coworkers compared the effectiveness of two concentrations of acetic acid, quaternary ammonium compound, and household detergent against a mixture of P. aeruginosa, S. aureus, and Pseudomonas cepacia.(10) The quaternary nitrogen atom in lycobetaine plays an important role in the formation of hydrogen bonds between the compound and the oligonucleotide.(11) Their activity may be enhanced by using membrane-disrupting surfactants such as quaternary ammonium compounds.(12) In the more complicated previous model [3-6], higher total R1 concentrations favor higher order quaternary states.(13) What remains to be determined is how the reaction mechanism for this enzyme might differ from those PBGS that show both an absolute requirement for metal ions and an octameric quaternary structure.(14) Together, the Pleistocene and Holocene make up the Quaternary period, marked by waxing and waning of polar glaciers.(15) Late Tertiary and Quaternary glacial, alluvial and lacustrine sediments are widespread adjacent to the mountains and in intermontane basins.(16) Miocene-Pliocene volcanic rocks have a calc-alkaline character which gives way to a predominantly alkaline character in late Pliocene to Quaternary times.
