Terminator Line
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Propagação guiada de ondas de VLF: aplicação ao estudo de fenômenos atmosféricos e naturais
Deep amplitude minima are observed in the daily records of Very Low Frequency (VLF, between 3 - 30 kHz) wave amplitudes. Amplitude minima are attributed to modal interference and modal conversion of waves propagating in the Earth - Ionosphere waveguide. The time of amplitude minima is related with the localization of the Terminator line and, therefore, is de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/02/2012
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2. Clinical and PTCH1 gene mutations studies in patients bearing multiple familiar non-syndromic basal cell carcinomas / Estudo clínico e de mutações no gene PTCH1 em pacientes portadores de carcinomas basocelulares múltiplos familiares não sindrômicos
INTRODUCTION: Basal cell carcinomas (BCC) are the most usual skin cancer that affects human beings. Sporadic BCCs are prevalent, often arising in people chronically exposed to UV radiation from the sun. Eventually BCCs may be associated to different syndroms like Bazex-Dupré-Christol, Rambo and Gorlin. Contrarily to syndromic BCCs, the cases of multiple fam
Publicado em: 2010
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3. Identification of a positive retroregulator that stabilizes mRNAs in bacteria.
A positive retroregulator that enhances the expression of an upstream gene(s) has been identified. It resides within a 381-base pair (bp) restriction fragment containing the transcriptional terminator of the crystal protein (cry) gene from Bacillus thuringiensis vs. Kurstaki HD-1. This fragment was fused to the distal ends of either the penicillinase (penP)
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4. Significant Accumulation of C4-Specific Pyruvate, Orthophosphate Dikinase in a C3 Plant, Rice1
The C4-Pdk gene encoding the C4 enzyme pyruvate, orthophosphate dikinase (PPDK) of maize (Zea mays cv Golden Cross Bantam) was introduced into the C3 plant, rice (Oryza sativa cv Kitaake). When the intact maize C4-Pdk gene, containing its own promoter and terminator sequences and exon/intron structure, was introduced, the PPDK activity in the leaves of some
American Society of Plant Physiologists.
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5. "Onion skin" replication of integrated polyoma virus DNA and flanking sequences in polyoma-transformed rat cells: termination within a specific cellular DNA segment.
Replication of integrated polyoma virus DNA and flanking cellular sequences was studied in an inducible line of polyoma-transformed rat cells, designated the LPT line, that contains a single viral integration site. Chromosomal DNAs were purified from LPT cells treated with the virus-inducing agent mitomycin C and from untreated cells and were digested with r
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6. 3'-Azido-3'-deoxythymidine inhibits the replication of avian leukosis virus.
We tested the ability of the thymidine analog 3'-azido-3'-deoxythymidine (BWA509U) to inhibit the replication of the retrovirus avian leukosis virus. Inhibition was measured with two different assays: inhibition of a single round of virus replication and inhibition of virus spread through a cell culture. With both assays, we detected inhibition of virus grow
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7. Acyclovir inhibition of Epstein-Barr virus replication.
Acyclovir [9-(2-hydroxyethoxymethyl)guanine] triphosphate inhibits Epstein-Barr virus (EBV)-associated DNA polymerase (DNA nucleotidyltransferase; EC 2.7.7.7) to a greater extent than it inhibits host alpha and beta DNA polymerases. The affinity of the compound for viral polymerase is 100-fold higher than for alpha-polymerase. The extent of inhibition is dep
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8. Expression of the Drosophila white gene under the control of the hsp70 heat shock promoter
We have used P-mediated transformation to introduce into the Drosophila genome transposons containing the hsp-70 heat shock promoter (hsp) placed at different distances upstream of the white gene. Using these constructions we found a strong terminator 250 nucleotides upstream of the white transcription start. When all white upstream sequences are deleted and
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9. Linker-insertion nonsense and restriction-site deletion mutations of the gB glycoprotein gene of herpes simplex virus type 1.
To study the effects of missense, nonsense, and deletion mutations of the gB glycoprotein gene of herpes simplex virus type 1, a gB-transformed cell line was isolated that, after virus infection, would express sufficient quantities of gB from the cellular chromosome to complement temperature-sensitive gB mutants. The transformed cell line was then used as a
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10. Truncation of the c-myb gene by a retroviral integration in an interleukin 3-dependent myeloid leukemia cell line.
Among a series of myeloid leukemia cell lines, one (NFS-60) was found to have a rearrangement of the c-myb locus. The rearrangement involved the integration of a retrovirus into the region of the gene corresponding to the sixth exon of the avian c-myb locus. The insertion is associated with the production of a truncated RNA and the introduction of a terminat
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11. Frequencies, Timing, and Spatial Patterns of Co-Suppression of Nitrate Reductase and Nitrite Reductase in Transgenic Tobacco Plants.
Frequencies, timing, and spatial patterns of co-suppression of the nitrate (Nia) and nitrite (Nii) genes were analyzed in transgenic tobacco (Nicotiana tabacum) plants carrying either Nia or Nii cDNAs under the control of the 35S promoter, or a Nii gene with its own regulatory signals (promoter, introns, and terminator) cloned downstream of two copies of the
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12. On-line integration of PCR and cycle sequencing in capillaries: from human genomic DNA directly to called bases
A fully integrated system has been developed for genetic analysis based on direct sequencing of polymerase chain reaction (PCR) products. The instrument is based on a serially connected fused-silica capillary assembly. The technique involves the use of microreactors for small-volume PCR and for dye-terminator cycle-sequencing reaction, purification of the se
Oxford University Press.