(1) Moreover, nick-translated [32-P]-pCS75, which is a pUC9 derivative containing a PstI insert with L and S subunit genes (for RuBisCO) from A. nidulans, hybridizes at very high stringency with restriction fragments from chromosomal DNA of untransformed and transformed cells as does the 32P-labeled PstI fragment itself.
(2) However, the tetM probe had a much lower sensitivity and required a lower stringency of hybridization.
(3) No homology was noted between the DNA of 10 tetracycline-resistant isolates of campylobacter and the streptococcal tetL, tetM, or tetN determinants when tested under conditions of high stringency.
(4) A procedure is provided to adjust the level of the 95th-percentile standard so that the stringency of the present standard is preserved.
(5) Eight of the lesions contained HPV DNA sequences, and in six of these the sequences were related to HPV 16 as deduced from low-stringency nucleic acid hybridization followed by low- and high-stringency washes.
(6) However, under conditions of low stringency, the DUG S and M RNA probes hybridised to the respective S and M segments of Ganjam (GAN) virus (another member of the NSD serogroup).
(7) Possibly due to the stringency of requirements for culturing such plasmacytomas, a highly advantageous combination of components was developed.
(8) When 3 to 5 stringency conditions were assayed on 4 frozen samples, similar results were obtained.
(9) At reduced stringency, a probe to the 3' HVR detects a new family of multiallelic loci that will be of value in the study of human genetics.
(10) This is consistent with the concept that stringency and inhibition of protein synthesis affect the rate of utilization rather than the synthesis of these ribonucleotide residues.
(11) To identify additional molecular forms of the exchanger, rat brain, heart, kidney, stomach, and spleen cDNA libraries were screened for their presence using an NHE-1 cDNA probe under low stringency hybridization conditions.
(12) By hybridization to a globin probe at reduced stringency all but four clones were found to contain small globin related inserts; two of these hybridized to hamster repetitive sequences as shown by Southern blot analysis.
(13) Structural homology to the P-450b gene was confirmed by comparative restriction mapping and high stringency hybridization of gene IV fragments to probes comprising the entire cDNA for P-450b.
(14) With this method, clear results were obtained under both normal and low stringency conditions, allowing hybridization between molecules sharing 80-85% and 60-65% identity, respectively.
(15) Hybridization of a bovine ARF 2 cDNA under low stringency with mammalian poly(A)+ RNA resulted in multiple bands that were subsequently assigned to the known ARF genes using ARF-specific oligonucleotide probes.
(16) However, consensus restriction maps of the two subgroups are largely dissimilar and, except at low stringencies, cross reassociation is readily detected only at restriction fragments from a particular conserved internal segment.
(17) Here we describe the isolation and characterization of a cDNA coding for the MR, from a rat hippocampus cDNA library, by low stringency hybridization to radiolabeled human glucocorticoid receptor cDNA.
(18) At higher stringency, human papillomaviruses cross-hybridized with each other reflecting species-specific similarities.
(19) irradiation before hybridization with mixed viral DNA probes under both low- and high-stringency conditions.
(20) The method is based on the priming of polymerase chain reaction (PCR) by an oligonucleotide complementary to the DNA sequence containing the mutation of interest, which anneals only to the perfectly matched sequence under high stringency conditions.
Tightness
Definition:
(n.) The quality or condition of being tight.
Example Sentences:
(1) Freshly isolated sarcoplasmic reticulum vesicles contain 0.05 mol of tightly bound ADP and 0.03 mol of tightly bound ATP per mol of Ca2+, Mg2+-ATPase (ATP phosphohydrolase, EC 3.6.1.3).
(2) The expression of the Pgp isoforms appears to be tightly regulated and, at least in some cells, under complex hormonal control.
(3) Whereas the tight junctions of endoneurial capillaries are known to prevent certain blood-borne substances from entering the endoneurium, it was not clear whether the permeability of the pulpal capillaries, which are distant from the nerve fibres, could affect the nerve fibre environment.
(4) The cells are predominantly monopolar, tightly packed, and are flattened at the outer border of the ring.
(5) These data indicate that topoisomerase I and RNA polymerase I are tightly complexed both in vivo and in vitro, and suggest a role for DNA topoisomerase I in the transcription of ribosomal genes.
(6) Immunofluorescence and immunoelectronmicroscopy experiments demonstrated that while tight junctions demarcate PAS-O distribution in confluent cultures, apical polarity could be established at low culture densities when cells could not form tight junctions with neighboring cells.
(7) Investigations have been made to determine the identity and binding characteristics of the pterins that are bound tightly to dihydrofolate reductases which are isolated from vertebrate sources by a well established procedure.
(8) At all times, a tight inverse correlation exists between ATP and IMP concentrations.
(9) Recently, a gene for ITD (DYT1) in a non-Jewish kindred was located on chromosome 9q32-34, with tight linkage to the gene encoding gelsolin (GSN).
(10) This study investigates the use of the incentive inspirometer to observe the effects of tight versus loose clothing on inhalation volume with 17 volunteer subjects.
(11) In contrast, interchange of the histones and tightly bound non-histone protein DNA complexes from hormone-withdrawn and estrogen-stimulated chromatins during reconstitution did not affect the level of mRNAOV sequences produced.
(12) Using microelectrodes and various microscopic techniques active Na+ absorption as well as K+ secretion has been localized to the principal cells, while Cl- absorption was found to proceed largely, though not exclusively, through the tight junctions between cells.
(13) The successful establishment of a postcrisis SV-40 T antigen transformed epithelial cell line, 1HAEo-, which retains tight junctions and vectorial ion transport, is described.
(14) The present investigation shows that the intramembranous proteins of tight and gap junctions are mobile structures within the fluid membrane.
(15) In contrast, after incubation with 0.5% DOC, the core microfilaments are no longer tightly bundled yet the lateral arms remain attached with a distinct 33-nm periodicity.
(16) The data collected by several approaches reveal that assembly and maturation of vaccinia involves a tightly coupled sequence of interrelated events including the assembly of the envelope, post-translational cleavage of several virion polypeptides, and induction of the core enzymes.
(17) The tight coupling between neuronal activity and oxidative energy metabolism forms the basis for the use of cytochrome oxidase as an endogenous metabolic marker for neurons.
(18) When using a nylon thread for the attachment of a pseudophakos to the iris, it may happen that the suture is slung tightly around the implant-lens.
(19) Some antibodies and other proteins bind tightly to nitrocellulose and dissociation of these proteins by Tween 20 is barely detectable.
(20) Independent experts warn that rumours and deliberate misinformation about the regime are rife, partly because it is impossible to verify or disprove most stories about the tightly controlled country's elite.