(v. t.) To open the folds of; to expand; to spread out; as, to unfold a tablecloth.
(v. t.) To open, as anything covered or close; to lay open to view or contemplation; to bring out in all the details, or by successive development; to display; to disclose; to reveal; to elucidate; to explain; as, to unfold one's designs; to unfold the principles of a science.
(v. t.) To release from a fold or pen; as, to unfold sheep.
(v. i.) To open; to expand; to become disclosed or developed.
Example Sentences:
(1) The estimated DNA compaction ratio (approximately 3-fold) is consistent with a significant degree of nucleosome unfolding in the hyperstimulated BR genes.
(2) This formalism allows resolution of the intrinsic protein folding-unfolding parameters (enthalpy, entropy, and heat capacity changes) as well as the ligand interaction parameters (binding stoichiometry, enthalpy, entropy, and heat capacity changes).
(3) The kinetics of inactivation of the Mg(2+)-containing enzyme in 8 M-urea at higher temperatures suggest a partially unfolded Mg-A-B* dimer intermediate with 50% activity, followed by irreversible inactivation coincident with the appearance of unfolded monomer.
(4) When RNAase is partially unfolded Au(III) causes oxidation of methionines to the sulphoxide, and leads to almost complete unfolding (at molar equivalent ratios).
(5) In the context of a simplified diamond lattice model of a six-member, Greek key beta-barrel protein that is closely related in topology to plastocyanin, the nature of the folding and unfolding pathways have been investigated using dynamic Monte Carlo techniques.
(6) The efficiency of energy transfer between probes attached to residues 1 and 15 in the reduced state is higher than that found for the same pair of sites in the native state or reduced unfolded (in 6 M Gdn.HCl) state.
(7) Coombs's theory of data (1952, 1964) and his unfolding theory of preferential choice (1950, 1964) provided the conceptualization of metacognition in this psychophysical task context.
(8) Yet what has been unfolding in the past 15 months or so should make even the most ardent pro-European think about an orderly mechanism for making member states exit: the euro crisis and, less obviously, Hungary's backsliding from liberal democracy to a soft form of authoritarianism, or what an American paper recently called " Lukashenko lite ".
(9) Circular dichroism studies show that the conformation of each subunit is unusually resistant to change in 6 M guanidine HC1 at 25 degrees C. This suggests that exposure of the epitope by dissociation requires minimal or no unfolding of subunits.
(10) The data relative to the guanidine-induced unfolding show a sigmoidal increase of the distribution width, which is due to the transition of the protein structure from the native to the random-coiled state.
(11) The data suggest that the assessment of early trauma needs to employ a variety of measures, especially those which are related to the unfolding skills appropriate for the particular age group studied.
(12) In contrast to the biphasic unfolding of the wild-type nuclease, the unfolding of the mutant is represented by a single-phase reaction, indicating that the biphasic unfolding for the wild-type protein is caused by cis-trans isomerization about the prolyl peptide bond in the native state.
(13) 4) The unfolded map diagnosis with apical display obtained from long-axis tomogram was useful to diagnose left anterior descending coronary (LAD) lesion, which improve not only the sensitivity of LAD but also specificity of right coronary artery single vessel disease.
(14) The replacement of Arg171 by Tyr stabilizes the enzyme against thermal inactivation and unfolding.
(15) These findings and the dense structure of the scleral spur suggest that in monkey eyes, and at least in some human eyes, contraction of the ciliary muscle causes unfolding of the trabecular meshwork, not so much through the movement of the scleral spur as by movement of the interconnecting trabecular beams and fibers.
(16) The principal parameter under scrutiny was the denaturing or unfolding effects caused by the interaction of the protein with the adsorptive surfaces in each assay system.
(17) For here we see the depravity to which man can sink, the barbarity that unfolds when we begin to see our fellow human beings as somehow less than us, less worthy of dignity and life; we see how evil can, for a moment in time, triumph when good people do nothing."
(18) In contrast, import of the surface-bound unfolded precursor requires ATP, but no potential; it is accompanied by a refolding inside the mitochondria.
(19) These experiments show that yeast cells can activate a transcription factor that stimulates expression of a nuclear gene in response to the accumulation of unfolded proteins in another cellular compartment.
(20) In the present study, the reversibility of the unfolding-refolding process induced by guanidine hydrochloride was investigated for the intact protein and the isolated domains.
Unwind
Definition:
(v. t.) To wind off; to loose or separate, as what or convolved; to untwist; to untwine; as, to unwind thread; to unwind a ball of yarn.
(v. t.) To disentangle.
(v. i.) To be or become unwound; to be capable of being unwound or untwisted.
Example Sentences:
(1) Unlike cisplatin, bis(platinum) complex binding does not unwind supercoiled DNA.
(2) Of the 47 compounds that were positive or equivocal in the alkaline unwinding assay, only carbon tetrachloride and prednisolone were negative in the mouse lymphoma assay, while 12 of the 19 compounds that were negative in the alkaline unwinding assay were positive in the mouse lymphoma assay.
(3) As suggested from the high level of sequence similarity of these viral proteins with the recently described superfamilies of helicase-like proteins (3-5), the NTBM-containing cylindrical inclusion (CI) protein from plum pox virus (PPV), which belongs to the potyvirus group of positive strand RNA viruses, is shown to be able to unwind RNA duplexes.
(4) This limited unwinding of heterologous duplex DNA, termed heterologous unwinding, was detected within 30 seconds and reached a steady state within a few minutes.
(5) Comparison of the superhelix densities obtained by both methods permits a calculation of an unwinding angle for ethidium.
(6) The exposure of the cells from mussel haemolymph and from mouse L1210 to a genotoxic compound such as dimethylsulfate results in DNA damage and consequently in a reduction of the unwinding time.
(7) As for unwinding, the rituals of it give a satisfying end to the shape of my day.
(8) Chromosome replication appears to initiate in E. coli when the dnaA boxes in oriC become filled with DnaA protein, which could simultaneously mediate both the unwinding of the origin for the start of polymerization and the attachment of oriC to the cell envelope (Bramhill and Kornberg, 1988; Løbner-Olesen et al., 1989; Pierucci et al., 1989).
(9) The protein fraction containing the 93 000 dalton protein had considerable unwinding activity, depressing the melting temperature of poly(dA-dT) by 39 degrees C. The protein fraction containing the bulk of the 35 000 dalton protein did not have unwinding activity.
(10) The required cellular protein may be a eukaryotic single-stranded-DNA-binding protein (SSB), since unwinding of the template is also observed when Escherichia coli SSB is substituted for the HeLa protein fraction.
(11) Evidence is presented that the first step in initiation of SV40 DNA replication involves the specific binding of T antigen to the origin, followed by the local unwinding of the two strands of the template.
(12) Complex formation leads to very little, if any, unwinding of the duplex.
(13) It is suggested that the gene D product may function in replicative form DNA unwinding to expose the template for transcription.
(14) Topotecan (SK&F 104864) is a novel antitumor agent whose mechanism of action is inhibition of the DNA unwinding protein topoisomerase I.
(15) We used an RNA unwinding assay to compare the activities of these factors from the different species.
(16) The extension and unwinding of the DNA helix brought about by the intercalating chromophore of the dye molecules are not requirements for the entrapment process.
(17) Second, mutant T antigens with impaired ATPase function also showed a reduced DNA unwinding activity.
(18) Analysts at UBS said: “After Friday’s ... market plunge, many turned to the authorities for support measures as concerns rose that the rapid unwinding of margin trades was fuelling the sell-off.
(19) It is proposed that the DNA-unwinding activity causes the efficient recombination, DNA repair, and SOS induction (after application of nalidixic acid) in recD mutants.
(20) But within minutes of the five-year-old video of Obama being released by the Daily Caller website on Tuesday night , the "exclusive" began to unwind amid criticism that much of it had been reported at the time and the content was anything but explosive.