scholarly journals Pulsed-field gel electrophoresis of restriction-digested genomic DNA and antimicrobial susceptibility of Xanthomonas maltophilia strains from Brazil, Switzerland and the USA

1994 ◽  
Vol 33 (3) ◽  
pp. 615-618 ◽  
Author(s):  
Helio S. Sader ◽  
Antonio C. Pignatari ◽  
Reno Frei ◽  
Richard J. Hollis ◽  
Ronald N. Jones
Keyword(s):  
Antimicrobial Susceptibility ◽  
Gel Electrophoresis ◽  
Genomic Dna ◽  
Pulsed Field Gel Electrophoresis ◽  
Xanthomonas Maltophilia ◽  
Pulsed Field ◽  
The Usa

scholarly journals Molecular epidemiology of Salmonella enteritidis phage type 1b and 6a isolates in Portugal

2003 ◽  
Vol 131 (1) ◽  
pp. 607-612 ◽  
Author(s):  
A. R. SOARES ◽  
J. MACHADO
Keyword(s):  
Molecular Epidemiology ◽  
Gel Electrophoresis ◽  
Salmonella Enterica ◽  
Genomic Dna ◽  
Salmonella Enteritidis ◽  
Phage Type ◽  
Pulsed Field Gel Electrophoresis ◽  
Pulsed Field ◽  
Main Pattern

Salmonella enterica serotype Enteritidis is an important serovar comprising 76% of salmonella isolates in Portugal in 2001.For better understand the epidemiology of salmonellosis, a total of 47 isolates of S. Enteritidis phage type (PT) 1b and 6a were analysed by pulsed-field gel electrophoresis (PFGE) and genomic DNA was subjected to macro restriction with XbaI. For PT1b isolates, only three different patterns were observed, and PT6a showed a total of 10 digestion patterns. Curiously, the main pattern among PT1b isolates seams quite similar to main pattern of PT6a isolates, but when the two patterns were analysed with Bionumerics, we observed that they exhibited some differences. It was concluded that, in 2001, there was one predominant pattern for PT1b and PT6a and, possibly, we were in presence of clonal strains that exists all over the country.

scholarly journals Direct observation of the gene organization of the complement C4 and 21-hydroxylase loci by pulsed field gel electrophoresis.

1989 ◽  
Vol 169 (5) ◽  
pp. 1803-1818 ◽  
Author(s):  
I Dunham ◽  
C A Sargent ◽  
R L Dawkins ◽  
R D Campbell
Keyword(s):  
Direct Observation ◽  
Gel Electrophoresis ◽  
Genomic Dna ◽  
Family Studies ◽  
Gene Organization ◽  
Pulsed Field Gel Electrophoresis ◽  
Dna Probes ◽  
Complement C4 ◽  
Pulsed Field ◽  
Definition Of

Pulsed field gel electrophoresis and enzymes that cut genomic DNA infrequently have been used to define large RFLPs at the human C4 loci. With the enzymes BssH II or Sac II, and C4 or 21-hydroxylase DNA probes, it has been possible to observe directly the number of C4 genes present on a haplotype, and also whether the C4 genes are long (6-7-kb intron present) or short (6-7-kb intron absent). Haplotypes that have either two long C4 genes or one long and one short C4 gene generate BssH II fragments of approximately 115 or approximately 105 kb, respectively. Haplotypes that have either a single long or a single short C4 gene generate BssH II fragments of approximately 80 or approximately 70 kb, respectively. This technique has been used to analyze the DNA isolated from PBMC and allows the complete definition of the C4 gene organization of an individual without the need for family studies.

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