(n.) A real or apparent libratory motion, like that of a balance before coming to rest.
Example Sentences:
(1) The simulation reproduces the amplitudes of the fast librational motions of the backbone N-H bonds determined from 15N nuclear magnetic relaxation data, as well as the crystallographic B-factors.
(2) This has provided information on the translational and librational motions of individual groups in the complex.
(3) Above about 52 degrees C cholesterol improves the order by decreasing the amplitude of the librational motions.
(4) In its thermal vibrations, the adenosine molecule behaves as two rigid segments with a torsional libration about the glycosidic bond of 14.4 deg2 at 123 K. The force constant for this libration, as determined from the diffraction data, is 73 (10) J mol-1 deg-2.
(5) In the 1970s, Princeton physicist Gerald K O’Neill envisioned 100,000-person colonies, stationed at what is known as the fifth Lagrangian libration point (L5) in the moon’s orbit – like a gravitational eddy where things stay put by themselves.
(6) The source of the entropic elastomeric force is demonstrated to be the result of internal chain dynamics, and the mechanism is called the librational entropy mechanism of elasticity.
(7) The librational motions are to some extent cooperative.
(8) A translational, librational, and screw analysis of the thermal parameters of endothiapepsin also supports a model in which the two parts can move relative to each other.
(9) Collectively these results suggest that hydrophobic interactions make contributions to elastin entropy at low extensions, but that librational mechanisms make larger contributions to the elastic restoring force at longer extensions.
(10) Many such motions reflect peptide plane librations that result from anticorrelated crankshaft rotations of psi i and phi i+1.
(11) 7 nsec at 40 degrees C) where the band has been assigned to a peptide librational mode.
(12) The amplitude of the base motion, modeled as a fast four-site libration, or diffusion in a cone, increased slightly with higher levels of hydration.
(13) The TLS model has also been applied to the whole protein molecule and shows that the average motion is approximately isotropic with little librational character.
(14) Calculations of the relative statistical weights of these conformations confirm earlier theoretical considerations on the importance of the librational free energy of stable conformations of peptides.
(15) Since the spin-lattice relaxation rate for the active R-state (immobilized) phosphate is similar to that observed in other phosphoenzymes of different size it is suggested that a librational motion on the nanosecond time scale may constitute a common spin-lattice relaxation pathway for phosphates in macromolecules.
(16) The absorption bands of the glycerol ester, phosphoryl, and choline groups were broadened upon hydration, suggesting the activation of the librational or torsional motion.
(17) The similarity of Raman frequencies for B-, A-, C-, and Z-DNA suggests that these modes originate from concerted motions of the bases (librations), which are not strongly dependent upon helix backbone geometry or handedness.
(18) Thus, while the rate of these transitions cannot be quantified, the simulated decay of these correlation functions is completely consistent with the physical picture in which the N-H vectors, in addition to fast librational motion, undergo large amplitude jumps between conformations stabilized by hydrogen bonds.
(19) By analogy this allows for the first assignment of a peptide librational mode in a naturally occurring polypeptide or protein.
(20) The hydrophobic side groups in the protein core show mainly translational motion, with mean-square librations of 20 deg2 which are similar to those found in some close-packed crystals of small organic molecules.
Wobble
Definition:
(v. i.) See Wabble.
Example Sentences:
(1) The data presented indicate that 6-TG-induced differentiation of HL-60 cells is a tRNA-facilitated event and that the tRNA wobble base queuine is capable of maintaining both the proliferative and pluripotent potential of the cells.
(2) The new base-pairings involved G.C and A.U, and the A.C wobble pair at certain positions in the tRNA.
(3) These tRNA species are synthesized with guanine in the wobble position (tRNAG); this guanine can then be replaced with queuine by the action of the enzyme tRNA-guanine ribosyltransferase.
(4) A few emerging-market economies have similar wobbles to Iceland but get assistance from the International Monetary Fund.
(5) Van Gaal is conscious the deficit to Manchester City can be made up but also that a defeat could precipitate a wobble as serious as December’s.
(6) Tory MPs, whose loyalty to the current leader is a jelly that never properly set, are wobbling all over the place.
(7) Data are acquired in the stationary mode only (no wobble motion), resulting in a transaxial spatial resolution of better than 6 mm full width at half-maximum (FWHM) at the center, which degrades to 7.5 mm tangentially and 9.6 mm radially at a radius of 20 cm.
(8) In her first straight dramatic role, albeit one with comedy elements, Hart has proved a hit: Chummy's awkward flirting with Constable Noakes, wobbly cycling and surprise medical ability delighting the show's more than 10 million viewers.
(9) ), is also shifted by GpUpA and was previously assigned to FUra 34 at the wobble position of the anticodon.
(10) A former Socialist party leader, he is a jovial, wise-cracking believer in consensus politics, who aides say never loses his rag and who so hates fights that he was once nicknamed "the marshmallow" within his own party, or "Flanby", after a wobbly caramel pudding.
(11) Even the nickname given to him of Monsieur Flanby, after a caramel pudding, over his perceived wobbly political views, lost its relevance as he elaborated his programme.
(12) We see people who are grossly fat, their wobbling, sad bodies being winched out of windows, and class that as "obesity", distancing ourselves from the term.
(13) As the temperature increases, the wobble amplitude increases and the spectra narrow.
(14) So Nottinghamshire were wobbling on 90 for four when their two old lags combined to calm the favourites' nerves.
(15) In order to examine the effects of this mutation on translation of the complementary and wobble codons in vivo, we constructed the gene for an amber (UAG) suppressing variant of Su9, trpT179, by making the additional nucleotide change required for an amber suppressor anticodon.
(16) The economic credibility of the country that holds the global reserve currency has wobbled.
(17) Until I can strap myself to a big drone like some sort of hipster Icarus, the disappointed futurist thinks, I will wobble about on a two-wheeled board and pretend it is not in contact with the ground.
(18) Incorporation of structure 1 into a 3'-stacked tRNA anticodon appears to place 08 within hydrogen bonding distance of the 02' hydroxyl of ribose 33, which may limit the ability of such a molecule of tRNA to "wobble".
(19) Each movie group – Gone Girl, The Imitation Game, Selma, etc – sits defensively together, sort of like high-school cliques in the canteen of an 80s teen movie, and those proud, defiant smiles they managed to maintain for TV have long since wobbled away a bit.
(20) The complete nucleotide sequences of both rat liver and Walker 256 mammary carcinosarcoma tRNAAsn reveal that they are identical except for the nucleotide present in the wobble position of the anticodon loop.