60 Nucleotide Duplication
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. Caracterização molecular de Vírus Respiratório Sincicial Humano (HRSV) isolados na cidade de São Paulo no período de 2007 a 2008. / Characterization and epidemiologic of Human Respiratory Syncytial Virus (HRSV) isolated in São Paulo city in 2007-2008.
Human Respiratory Syncytial Virus (HRSV) is considered the most common cause of lower respiratory tract disease in infants and young children and are the main guilty for the elevated children hospitalizations rate under 5 years of age. The HRSV has a world-wide distribution, being able to attack all the ages however the 6 weeks to 9 months children of are th
Publicado em: 2010
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2. Genetic variability in the G gene of human respiratory syncytial virus (hRSV) and in the F gene of human metapneuvirus (hMPV) / Variabilidade do gene G do virus repiratorio sicial humano (hRSV) e gene F do metapneumovirus humano (hMPV)
The members of the Paramyxoviridae are enveloped, non-segmented viruses, with negative-sense single stranded genomes. Respiratory syncytial virus (hRSV) is the best characterized agent viral of this group, associated with respiratory diseases in lower respiratory tract. Recently, a new human pathogen belonging to the subfamily Pneumovirinae was identified, t
Publicado em: 2007
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3. Effects of Uvsx, Uvsy and DNA Topoisomerase on the Formation of Tandem Duplications of the Rii Gene in Bacteriophage T4
We have characterized tandem duplications in the rII regions of phage T4. The rII deletion r1589 blocks only the function of the rIIA cistron, although it extends into the B cistron. Another rII deletion, r1236, blocks the function of the rIIB cistron and overlaps r1589. When a cross is made between r1589 and r1236, true rII(+) progeny cannot form. Instead,
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4. Nucleotide sequence of the L1 ribosomal protein gene of Xenopus laevis: remarkable sequence homology among introns.
Ribosomal protein L1 is encoded by two genes in Xenopus laevis. The comparison of two cDNA sequences shows that the two L1 gene copies (L1a and L1b) have diverged in many silent sites and very few substitution sites; moreover a small duplication occurred at the very end of the coding region of the L1b gene which thus codes for a product five amino acids long
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5. Organization of variable region segments of the human immunoglobulin heavy chain: duplication of the D5 cluster within the locus and interchromosomal translocation of variable region segments.
We have studied the organization of variable region (V) genes of the human immunoglobulin heavy chain (H) by cosmid cloning. We isolated two independent immunoglobulin D5 clusters (D5-a and D5-b) from cosmid libraries of the human genome. Restriction maps of these two regions showed that downstream 15 kb portions of the 55 kb overlap were different although
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6. Nucleotide sequences of two cellulase genes from alkalophilic Bacillus sp. strain N-4 and their strong homology.
Two genes for cellulases of alkalophilic Bacillus sp. strain N-4 (ATCC 21833) have been sequenced. From the DNA sequences the cellulases encoded in the plasmids pNK1 and pNK2 consist of 488 and 409 amino acids, respectively. The DNA and protein sequences of the pNK1-encoded cellulase are related to those of the pNK2-encoded cellulase. The pNK2-encoded cellul
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7. Cloning and Sequence Analysis of a New Cellulase Gene Encoding CelK, a Major Cellulosome Component of Clostridium thermocellum: Evidence for Gene Duplication and Recombination
The cellulolytic and hemicellulolytic complex of Clostridium thermocellum, termed cellulosome, consists of up to 26 polypeptides, of which at least 17 have been sequenced. They include 12 cellulases, 3 xylanases, 1 lichenase, and CipA, a scaffolding polypeptide. We report here a new cellulase gene, celK, coding for CelK, a 98-kDa major component of the cellu
American Society for Microbiology.
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8. Characterization of Insertions of IS476 and Two Newly Identified Insertion Sequences, IS1478 and IS1479, in Xanthomonas campestris pv. campestris
Thirty-two plasmid insertion mutants were independently isolated from two strains of Xanthomonas campestris pv. campestris in Taiwan. Of the 32 mutants, 14 (44%), 8 (25%), and 4 (12%) mutants resulted from separate insertions of an IS3 family member, IS476, and two new insertion sequences (IS), IS1478 and IS1479. While IS1478 does not have significant sequen
American Society for Microbiology.
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9. Identification of a unique Marek's disease virus gene which encodes a 38-kilodalton phosphoprotein and is expressed in both lytically infected cells and latently infected lymphoblastoid tumor cells.
The identification of unique Marek's disease (MD) virus (MDV) antigens expressed not only in lytically infected cells but also in latently infected MD lymphoblastoid tumor cell lines is important in understanding the molecular mechanisms of latency and transformation by MDV, an oncogenic lymphotropic herpesvirus of chickens. Through cDNA and nucleotide seque