(1) A strong block to the elongation of nascent RNA transcripts by RNA polymerase II occurs in the 5' part of the mammalian c-fos proto-oncogene.
(2) The Ta loop was a smooth, elongated ellipse in configuration and showed clockwise rotation in all planes, as did the P loop.
(3) Aberrant forms (elongated and twisted) in the vacuole and double virions in the plasma membrane were observed as early as 65 h after infection.
(4) Elongation of existing RNA primers by the human polymerase-primase was semi-processive; following primer binding the DNA polymerase continuously incorporated 20 to 50 nucleotides, then it dissociated from the template DNA.
(5) The elongation of helix III with the addition of helix II at the N-terminus somewhat stabilizes the ordered structure.
(6) We show that it does apply under conditions of high ionic strength (0.3 M KCl), and under these conditions time courses may be analyzed to yield unbiased estimates of the initiation (Vi) and chain elongation (Vp) rates.
(7) These early hyperplastic lesions revealed stellate-shaped dilated bile canaliculi lined by blebs and abnormally thick elongated microvilli, a decreased number of microvilli on the sinusoidal surface, a marked increase in smooth endoplasmic reticulum, large nucleoli, and bundles of pericanalicular microfilaments.
(8) These two enzymes may act jointly in filling up the gaps along the DNA molecule and elongating the DNA chain.
(9) A radical rearrangement of the organism occurred gradually: initially oval in shape, the parasite became round, then elongated, flattened, and underwent cytokinesis.
(10) In muscle cells the mitochondria were in the process of dissolving and the sarcoplasmic reticulum formed elongate cisternae.
(11) The crus has been elongation 8 cm by Ilizarov method in 9 years old boy and 5 cm elongation of the tibia has been achieved with the use of Bastiani method in 8 years old girl.
(12) From the different shapes of the scattering curves of the native phosphofructokinase at pH 7.5 in the presence of 15 mM ATP and of the cross-linked tetramer or octamer, it can be inferred that the shapes of the protomers are different: in the presence of ATP the protomers are elongated, having an axial ratio of 1.8 to 2.0; the cross-linked state reveals a spherical protomer of radius 33.0 A, similar to that of the native enzyme at pH 7.5 in the presence of fructose 6-phosphate or fructose 1,6-bisphosphate.
(13) Whereas elongation of cDNA100 increased with time of incubation at the optimal detergent concentration, this process was retarded at higher detergent concentrations.
(14) This, along with evidence that kinesin is associated with the endoplasmic reticulum, has led to the suggestion that kinesin provides the motive force for the formation and maintenance of elongated tubulovesicular structures in cells.
(15) The results may point to an inhibition of replicon initiation, and a larger DNA chain elongation in UV-sensitive clones after UV irradiation.
(16) The cells elongate, keeping their original polarity, and acquire numerous filopodia which contain punctate junctions at sites of cell-to-cell contact.
(17) The remaining nonswarming mutants produced flagella but were defective in surface-induced elongation.
(18) The "hexagonal ribbon" model proposes that hexagonal profiles are true cross-sections of elongated hexagonal ribbons.
(19) The results raise important questions as to the actual mechanism of transcription elongation, and suggest that it is a much more complex process than previously assumed.
(20) It has been possible to separate this dissipation from that associated with elongation factor Tu function.
Lengthen
Definition:
(v. t.) To extent in length; to make longer in extent or duration; as, to lengthen a line or a road; to lengthen life; -- sometimes followed by out.
(v. i.) To become longer.
Example Sentences:
(1) Hearing loss at 8 kHz would shorten the I-V interval, while a loss at 4 kHz would be expected to lengthen the interval.
(2) In the V fibers, APD was lengthened by F, Q, and B, and shortened by L and M. The drug-induced changes in the relation between APD and CL were as in the P fibers.
(3) Physiotherapy for 4 to 12 weeks produced improvement, but in four cases early operation for excision of fibrous tissue and lengthening of the triceps was necessary to restore adequate flexion.
(4) Simultaneous atrial imaging and pulsed Doppler velocity measurement showed that passive atrioventricular flow occurred late in atrial lengthening and active atrioventricular flow occurred during atrial contraction.
(5) Systemic blood coagulation was unaffected by single 10000 U doses of heparin administered intraperitoneally in that plasma A-PTT values were not lengthened when measured over the ensuing six hours.
(6) Anesthesia lengthened the procedure by 1 hr but was needed in only 4.5% of the cases.
(7) Results from pharmacokinetic studies indicate a lengthening of the SDM half-life when administration was shifted from single to a multiple dose regime.
(8) This concept entails that during some seasons the preovulatory phase of the development of the human egg is lengthened, causing congenital anomalies.
(9) Simply lengthening the working age bracket is a potential disaster, unless the inequalities at the heart of the policy are addressed in a detailed and sensible way and we achieve full employment.
(10) Decreasing inadvertent PEEP by lengthening the expiratory time increased the compliance of the respiratory system (r = -0.74, n = 10, P less than 0.02).
(11) Results with the model strengthen the hypothesis that tetraethylammonium (TEA) acts on both the maximum potassium conductance (gK) and the mechanism of sodium conductance inactivation (Tauh) to lengthen the action potential as observed on the Ranvier node (fig.
(12) A subsequent S3 encountered further nonuniformly shortened refractoriness (normal areas had shortened refractoriness greater than ischemic areas) and the arc of block was lengthened.
(13) Distraction lengthening has gained wide acceptance in general orthopedics and in upper extremity reconstructions.
(14) It lengthens repolarisation and the effective refractory period in all cardiac tissues independently of its antiadrenergic properties.
(15) However, with further lengthening the conditioning pulse duration, it decreased, further increased, or remained constant depending on the direction of sodium current during the depolarization, irrespective of the membrane potential per se.
(16) Replacement of the cysteinylglycyl moiety with cysteine afforded 20, which retained significant antagonist activity, while lengthening or shortening the lipid tail by five methylene groups resulted in complete loss of activity.
(17) A technique is described which allows lengthening of a continent appendicovesicostomy.
(18) The modern era of leg lengthening has therefore brought two things: new technical versatility to correct complex and coexisting deformities and new concepts of the biology of lengthening that are not device specific and can be applied with most lengthening devices.
(19) Body weight was not affected by hormonal treatment, but the tails of the hypophysectomized sucklings were significantly lengthened by thyroxine alone, the effect being enhanced when growth hormone was also given.
(20) A technique for extreme lengthening of the mandible is presented.