(a.) Of or pertaining to, or in the form of, a helix; spiral; as, a helical staircase; a helical spring.
Example Sentences:
(1) The distribution of the amino acid pairs, i, i + 1 in alpha-helical configurations does not differ from the random pairing.
(2) An analysis of the triple helical stabilities of these cleavage site regions as reflected by their imino acid contents fails to yield a correlation between reactivity and triple helical stability.
(3) The Helical structures of d(C-G-C-A-m5C-G-T-G-m5C-G), d(m5C-G-C-A-m5C-G-T-G-C-G) and d(C-2aminoA-C-G-T-G) were studied in aqueous solution at various salt concentrations and temperatures by 1H-NMR spectroscopy.
(4) Chloride caused a significant concentration-dependent shortening of myosin rods due to destabilization of the alpha-helical double coiled rod structure.
(5) The poly(dG-dC) helical duplex forms a modified, B-family structure (B*) at very high hydration and a normal B structure at slightly lower hydration.
(6) Pretreatment with a novel CRF antagonist, alpha-helical CRF9-41 (130.9 nmol i.t.v.
(7) The melting profile exhibited two transitions--one at about 35 degrees C and one above 50 degrees C. Our spectral data showed that helices I and II were stable during the first transition, and agreed with other data that helix III was the most likely helix to have melted.
(8) (1974)88, 857-872, 873-894] for predicting secondary structure from amino acid sequence have been applied to five predominantly helical membrane-associated peptides.
(9) The alpha-helical content of the free form of the lipoprotein was measured from the circular dichroism spectrum of the lipoprotein in 0.01% sodium dodecyl sulfate and found to be 87%.
(10) In these discoidal complexes, the alpha-helical content was estimated to be 65%, with the rest of the structure being essentially unordered.
(11) A modified plot accounting for amphiphilic helices indicates 5-6 such alpha-segments.
(12) The inactivation of exogenous and neural norepinephrine (NE) by helical strips of rat tail artery was studied with a combination of the techniques of transmural stimulation and oil immersion.
(13) The above analysis suggests that in aqueous solution the protein is devoid of alpha-helical and beta-conformations but that it contains a significant amount of turns.
(14) These results are consistent with a structural model for the membrane in which the peptide chains vary greatly in the proportion of helical segments and polar regions which they contain.
(15) The latter, which is external and solvent accessible, is associated with a distortion in the alpha-helix centered around Tyr33 which consists of a significant increase in the CO(i-4)-N(i) and CO(i-4)-NH(i) distances relative to those in the rest of the helix, as well as a significant departure in the phi, psi angles of Tyr33 relative to regular helical geometry.
(16) Eight alpha-helices behave as relatively rigid bodies and corner regions are more flexible, showing larger fluctuations.
(17) It is suggested that the alpha-helical region, situated in the region between residues 10 and 20, binds to the RNA during assembly of the virus particle.
(18) Considering the density of helices along the RNA, it is not unexpected to find that all these sites lie in helical regions.
(19) Most double-helical segments were reactive to cobra venom ribonuclease to some degree; the exceptions were the five "long-range" helices that are probably compactly folded within the structure.
(20) The angle obtained for the C alpha-D resonance was consistent with a single-stranded beta 6.3-helical model for the backbone but not with double-helical models.
Worm
Definition:
(n.) A creeping or a crawling animal of any kind or size, as a serpent, caterpillar, snail, or the like.
(n.) Any small creeping animal or reptile, either entirely without feet, or with very short ones, including a great variety of animals; as, an earthworm; the blindworm.
(n.) Any helminth; an entozoon.
(n.) Any annelid.
(n.) An insect larva.
(n.) Same as Vermes.
(n.) An internal tormentor; something that gnaws or afflicts one's mind with remorse.
(n.) A being debased and despised.
(n.) Anything spiral, vermiculated, or resembling a worm
(n.) The thread of a screw.
(n.) A spiral instrument or screw, often like a double corkscrew, used for drawing balls from firearms.
(n.) A certain muscular band in the tongue of some animals, as the dog; the lytta. See Lytta.
(n.) The condensing tube of a still, often curved and wound to economize space. See Illust. of Still.
(n.) A short revolving screw, the threads of which drive, or are driven by, a worm wheel by gearing into its teeth or cogs. See Illust. of Worm gearing, below.
(v. i.) To work slowly, gradually, and secretly.
(v. t.) To effect, remove, drive, draw, or the like, by slow and secret means; -- often followed by out.
(v. t.) To clean by means of a worm; to draw a wad or cartridge from, as a firearm. See Worm, n. 5 (b).
(n.) To cut the worm, or lytta, from under the tongue of, as a dog, for the purpose of checking a disposition to gnaw. The operation was formerly supposed to guard against canine madness.
(n.) To wind rope, yarn, or other material, spirally round, between the strands of, as a cable; to wind with spun yarn, as a small rope.
Example Sentences:
(1) Other filarial worms which are known to occur in the RSA are discussed.
(2) The drugs were moderately potent inhibitors of both E. electricus and C. elegans acetylcholinesterase but at concentrations too high to account for their abilities to contract cut worms.
(3) The sectioned worm tissues from each developmental stage were embedded in Lowicryl HM 20 medium, stained with infected serum IgG and protein A gold complex (particle size: 12 nm) and observed by electron microscopy.
(4) glp-4(bn2ts) mutant worms raised at the restrictive temperature contain approximately 12 germ nuclei, in contrast to the 700-1000 present in wild-type adults.
(5) Fluorescein isothiocyanate (FITC)-ricin exhibited binding to schistosomula and adult worms, but not to cercariae or to freshly transformed schistosomula.
(6) Sera from S. mansoni-infected patients with a high specificity for the diagnostic S. mansoni-antigen cross-reacted with a corresponding component also in S. japonicum worms.
(7) To understand mechanisms involved in sex-specific gene expression in Schistosoma mansoni, a cDNA (fs800) was isolated that hybridized to an 800 nucleotide mRNA present in high levels only in mature female worms.
(8) Three freeze-thaw cycles released a large proportion (50% to 60%) of the TCA-precipitable radioactivity from the worms.
(9) Antigen inhibition studies showed low and high levels of cross-reactivity with anti-worm and anti-egg antibodies, respectively, derived from both Chinese and Philippine patients.
(10) Only eosinophils adhered to 2 h newborn worms and only macrophages to 20 h ones.
(11) Worms had invaded the bile duct in 51 patients, the pancreatic duct in four and both ducts in four.
(12) The number of ovarian balls rises to about 6300 per worm, with the maximum being attained more rapidly in unfertilized than in fertilized females.
(13) Or perhaps the "mad cow"-fuelled beef war in the late 1990s, when France maintained its ban on British beef for three long years after the rest of the EU had lifted it, prompting the Sun to publish a special edition in French portraying then president Jacques Chirac as a worm.
(14) Three bulls selected for high faecal worm egg counts and three bulls selected for low faecal worm egg counts were mated to Africander-Hereford cross cows.
(15) Among 30 villagers who were treated, 4 (13.3%) passed this species with an average of 2.5 worms per infection.
(16) Successful tests were carried out on 84 farms and 68% of these had resistant worms present.
(17) A higher retention rate of intestinal adult worms was observed in hydrocortisone-treated mice.
(18) No evidence was obtained for the involvement of monoamine oxidases in the metabolism of 5-HT in these filarial worms.
(19) Radiocarbons from glucosamine and leucine were incorporated into tissue glycogen of female worms much less than glucose.
(20) The heads were examined for adult and larval meningeal worms (Parelaphostrongylus tenuis) by physical examination of the brain surfaces, and the Baermann technique, respectively, and for ear mites by examination of ear scrapings.