scholarly journals Sequence analysis of open reading frames (ORFs) 2 to 4 of a U.S. isolate of porcine reproductive and respiratory syndrome virus

1995 ◽  
Vol 140 (7) ◽  
pp. 1313-1319 ◽  
Author(s):  
I. Morozov ◽  
X. -J. Meng ◽  
P. S. Paul
Keyword(s):  
Sequence Analysis ◽  
Open Reading Frames ◽  
Respiratory Syndrome Virus ◽  
Reading Frames

scholarly journals Woot, an Active Gypsy-Class Retrotransposon in the Flour Beetle, Tribolium castaneum, is Associated With a Recent Mutation

Genetics ◽  
1996 ◽  
Vol 143 (1) ◽  
pp. 417-426
Author(s):  
Richard W Beeman ◽  
M Scott Thomson ◽  
John M Clark ◽  
Marco A DeCamillis ◽  
Susan J Brown ◽  
...  
Keyword(s):  
Sequence Analysis ◽  
Tribolium Castaneum ◽  
Frameshift Mutation ◽  
Open Reading Frames ◽  
Red Flour Beetle ◽  
Intron Sequence ◽  
Coding Region ◽  
Long Terminal Repeats ◽  
Flour Beetle ◽  
Reading Frames

Abstract A recently isolated, lethal mutation of the homeotic Abdominal gene of the red flour beetle Tribolium castaneum is associated with an insertion of a novel retrotransposon into an intron. Sequence analysis indicates that this retrotransposon, named Woot, is a member of the gypsy family of mobile elements. Most strains of T. castaneum appear to harbor ~25-35 copies of Woot per genome. Woot is composed of long terminal repeats of unprecedented length (3.6 kb each), flanking an internal coding region 5.0 kb in length. For most copies of Woot, the internal region includes two open reading frames (ORFs) that correspond to the gag and pol genes of previously described retrotransposons and retroviruses. The copy of Woot inserted into Abdominal bears an apparent single frameshift mutation that separates the normal second ORF into two. Woot does not appear to generate infectious virions by the criterion that no envelop gene is discernible. The association of Woot with a recent mutation suggests that this retroelement is currently transpositionally active in at least some strains.

XV. Yeast sequencing reports. DNA sequence analysis of a 13 kbp fragment of the left arm of yeast chromosome XV containing seven new open reading frames

Yeast ◽  
1995 ◽  
Vol 11 (13) ◽  
pp. 1281-1288 ◽  
Author(s):  
Antonio Casamayor ◽  
Martí Aldea ◽  
Celia Casas ◽  
Enrique Herrero ◽  
Francisco-Javier Gamo ◽  
...  
Keyword(s):  
Sequence Analysis ◽  
Dna Sequence ◽  
Dna Sequence Analysis ◽  
Open Reading Frames ◽  
Yeast Chromosome ◽  
Reading Frames

scholarly journals Complete Genome Sequence of Salmonella Bacteriophage SS3e

2012 ◽  
Vol 86 (18) ◽  
pp. 10253-10254 ◽  
Author(s):  
Sung-Hun Kim ◽  
Jeong-Hyun Park ◽  
Bok-Kwon Lee ◽  
Hyuk-Joon Kwon ◽  
Ji-Hyun Shin ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Sequence Analysis ◽  
Genomic Sequence ◽  
Enterobacter Cloacae ◽  
Open Reading Frames ◽  
Lytic Bacteriophage ◽  
Content Type ◽  
Double Stranded Dna ◽  
Genomic Sequence Analysis ◽  
Reading Frames

ASalmonellalytic bacteriophage, SS3e, was isolated, and its genome was sequenced completely. This phage is able to lyse not only variousSalmonellaserovars but alsoEscherichia coli,Shigella sonnei,Enterobacter cloacae, andSerratia marcescens, indicating a broad host specificity. Genomic sequence analysis of SS3e revealed a linear double-stranded DNA sequence of 40,793 bp harboring 58 open reading frames, which is highly similar toSalmonellaphages SETP13 and MB78.

scholarly journals Identification and Expression of Genes Involved in Biosynthesis of l-Oleandrose and Its Intermediatel-Olivose in the Oleandomycin ProducerStreptomyces antibioticus

2000 ◽  
Vol 44 (5) ◽  
pp. 1266-1275 ◽  
Author(s):  
Ignacio Aguirrezabalaga ◽  
Carlos Olano ◽  
Nerea Allende ◽  
Leticia Rodriguez ◽  
Alfredo F. Braña ◽  
...  
Keyword(s):  
Sequence Analysis ◽  
Gene Cluster ◽  
Enzyme Activities ◽  
Open Reading Frames ◽  
Streptomyces Antibioticus ◽  
Recombinant Strains ◽  
Expression Of Genes ◽  
Streptomyces Albus ◽  
Erythronolide B ◽  
Reading Frames

ABSTRACT A 9.8-kb DNA region from the oleandomycin gene cluster inStreptomyces antibioticus was cloned. Sequence analysis revealed the presence of 8 open reading frames encoding different enzyme activities involved in the biosynthesis of one of the two 2,6-deoxysugars attached to the oleandomycin aglycone:l-oleandrose (the oleW, oleV,oleL, and oleU genes) andd-desosamine (the oleNI and oleTgenes), or of both (the oleS and oleE genes). AStreptomyces albus strain harboring the oleG2glycosyltransferase gene integrated into the chromosome was constructed. This strain was transformed with two different plasmid constructs (pOLV and pOLE) containing a set of genes proposed to be required for the biosynthesis of dTDP-l-olivose and dTDP-l-oleandrose, respectively. Incubation of these recombinant strains with the erythromycin aglycon (erythronolide B) gave rise to two new glycosylated compounds, identified asl-3-O-olivosyl- andl-3-O-oleandrosyl-erythronolide B, indicating that pOLV and pOLE encode all enzyme activities required for the biosynthesis of these two 2,6-dideoxysugars. A pathway is proposed for the biosynthesis of these two deoxysugars in S. antibioticus.

scholarly journals Comprehensive sequence analysis of the 182 predicted open reading frames of yeast chromosome III

1992 ◽  
Vol 1 (12) ◽  
pp. 1677-1690 ◽  
Author(s):  
Peer Bork ◽  
Christos Ouzounis ◽  
Chris Sander ◽  
Michael Scharf ◽  
Reinhard Schneider ◽  
...  
Keyword(s):  
Sequence Analysis ◽  
Open Reading Frames ◽  
Yeast Chromosome ◽  
Chromosome Iii ◽  
Reading Frames

scholarly journals Molecular and Evolutionary Characterization of the cp32/18 Family of Supercoiled Plasmids in Borrelia burgdorferi297

2000 ◽  
Vol 68 (3) ◽  
pp. 1574-1586 ◽  
Author(s):  
Melissa J. Caimano ◽  
Xiaofeng Yang ◽  
Taissia G. Popova ◽  
Michael L. Clawson ◽  
Darrin R. Akins ◽  
...  
Keyword(s):  
Sequence Analysis ◽  
Genomic Sequence ◽  
Complete Sequence ◽  
Open Reading Frames ◽  
Exogenous Dna ◽  
Variable Regions ◽  
Different Types ◽  
Sequence Relatedness ◽  
Reading Frames

ABSTRACT In this study, we characterized seven members of the cp32/18 family of supercoiled plasmids in Borrelia burgdorferi297. Complete sequence analysis of a 21-kb plasmid (cp18-2) confirmed that the strain 297 plasmids are similar in overall content and organization to their B31 counterparts. Of the 31 open reading frames (ORFs) in cp18-2, only three showed sequence relatedness to proteins with known functions, and only one, a ParA/SopA ortholog, was related to nonborrelial polypeptides. Besides the lipoproteins, none of the ORFs appeared likely to encode a surface-exposed protein. Comparison with the B31 genomic sequence indicated that paralogs for most of the ORFs in cp18-2 can be identified on other genetic elements. cp18-2 was found to lack a 9- to 10-kb fragment present in the 32-kb homologs which, by extrapolation from the B31 cp32 sequences, contains at least 15 genes presumed to be unnecessary for plasmid maintenance. Sequence analysis of the lipoprotein-encoding variable loci provided evidence that recombinatorial processes within these regions may result in the acquisition of exogenous DNA. Pairwise analysis with random shuffling revealed that the multiple lipoproteins (Mlp; formerly designated 2.9 LPs) fall into two distinct homology groups which appear to have arisen by gene fusion events similar to those recently proposed to have generated the three OspE, OspF, and Elp lipoprotein families (D. R. Akins, M. J. Caimano, X. Yang, F. Cerna, M. V. Norgard, and J. D. Radolf, Infect. Immun. 67:1526–1532, 1999). Comparative analysis of the variable regions also indicated that recombination within the loci of each plasmid may occur independently. Last, comparison of variable loci revealed that the cp32/18 plasmid complements of the B31 and 297 isolates differ substantially, indicating that the two strains have been subject to divergent adaptive pressures. In addition to providing evidence for two different types of recombinatorial events involving cp32/18 plasmids, these findings underscore the need for genetic analysis of diverse borrelial isolates in order to elucidate the Lyme disease spirochete's complex parasitic strategies.

Sequence analysis of a 5·6 kb fragment of chromosome II fromSaccharomyces cerevisiae reveals two new open reading frames next toCDC28

Yeast ◽  
1995 ◽  
Vol 11 (5) ◽  
pp. 455-458 ◽  
Author(s):  
Sabine Baur ◽  
Jûrgen Becker ◽  
Ziyu Li ◽  
Eckhard Niegemann ◽  
Eugen Wehner ◽  
...  
Keyword(s):  
Sequence Analysis ◽  
Open Reading Frames ◽  
Chromosome Ii ◽  
Reading Frames
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