scholarly journals Phenotypic and Molecular Characterization of Erythromycin Resistance in Four Isolates of Streptococcus-Like Gram-Positive Cocci Causing Bacteremia

2004 ◽  
Vol 42 (7) ◽  
pp. 3303-3305 ◽  
Author(s):  
P. C. Y. Woo ◽  
A. P. C. To ◽  
S. K. P. Lau ◽  
A. M. Y. Fung ◽  
K.-y. Yuen
Keyword(s):  
Molecular Characterization ◽  
Erythromycin Resistance ◽  
Gram Positive ◽  
Gram Positive Cocci

Functional Analysis of Glycosyltransferase Genes from Lactococcus lactis and Other Gram-Positive Cocci: Complementation, Expression, and Diversity

1999 ◽  
Vol 181 (20) ◽  
pp. 6347-6353 ◽  
Author(s):  
Richard van Kranenburg ◽  
Harmjan R. Vos ◽  
Iris I. van Swam ◽  
Michiel Kleerebezem ◽  
Willem M. de Vos
Keyword(s):  
Lactococcus Lactis ◽  
Streptococcus Thermophilus ◽  
Gene Clusters ◽  
Second Step ◽  
Chemical Compositions ◽  
Erythromycin Resistance ◽  
Gram Positive ◽  
Group Iii ◽  
Group I ◽  
Gram Positive Cocci

ABSTRACT Sixteen exopolysaccharide (EPS)-producing Lactococcus lactis strains were analyzed for the chemical compositions of their EPSs and the locations, sequences, and organization of theeps genes involved in EPS biosynthesis. This allowed the grouping of these strains into three major groups, representatives of which were studied in detail. Previously, we have characterized theeps gene cluster of strain NIZO B40 (group I) and determined the function of three of its glycosyltransferase (GTF) genes. Fragments of the eps gene clusters of strains NIZO B35 (group II) and NIZO B891 (group III) were cloned, and these encoded the NIZO B35 priming galactosyltransferase, the NIZO B891 priming glucosyltransferase, and the NIZO B891 galactosyltransferase involved in the second step of repeating-unit synthesis. The NIZO B40 priming glucosyltransferase gene epsD was replaced with an erythromycin resistance gene, and this resulted in loss of EPS production. This epsD deletion was complemented with priming GTF genes from gram-positive organisms with known function and substrate specificity. Although no EPS production was found with priming galactosyltransferase genes from L. lactis orStreptococcus thermophilus, complementation with priming glucosyltransferase genes involved in L. lactis EPS andStreptococcus pneumoniae capsule biosynthesis could completely restore or even increase EPS production in L. lactis.

scholarly journals Characterization of macrolide resistance in Gram-positive cocci from Colombian hospitals: a countrywide surveillance

2007 ◽  
Vol 11 (4) ◽  
pp. 329-336 ◽  
Author(s):  
Jinnethe Reyes ◽  
Marylin Hidalgo ◽  
Lorena Díaz ◽  
Sandra Rincón ◽  
Jaime Moreno ◽  
...  
Keyword(s):  
Macrolide Resistance ◽  
Gram Positive ◽  
Gram Positive Cocci

Molecular characterization of chromium (VI) reducing potential in Gram positive bacteria isolated from contaminated sites

2010 ◽  
Vol 42 (10) ◽  
pp. 1857-1863 ◽  
Author(s):  
Ramesh C. Patra ◽  
Seidu Malik ◽  
Michael Beer ◽  
Mallavarapu Megharaj ◽  
Ravi Naidu
Keyword(s):  
Molecular Characterization ◽  
Contaminated Sites ◽  
Gram Positive ◽  
Gram Positive Bacteria ◽  
Chromium Vi ◽  
Reducing Potential

Molecular Characterization of a Plasmid-Borne (pGT633) Erythromycin Resistance Determinant (ermGT) from Lactobacillus reuteri 100-63

Plasmid ◽  
1994 ◽  
Vol 31 (1) ◽  
pp. 60-71 ◽  
Author(s):  
Gerald W. Tannock ◽  
John B. Luchansky ◽  
Lynette Miller ◽  
Hugh Connell ◽  
Soren Thode-Andersen ◽  
...  
Keyword(s):  
Molecular Characterization ◽  
Lactobacillus Reuteri ◽  
Resistance Determinant ◽  
Erythromycin Resistance

scholarly journals Identification and characterization of cell wall-cell division gene clusters in pathogenic gram-positive cocci.

1997 ◽  
Vol 179 (17) ◽  
pp. 5632-5635 ◽  
Author(s):  
M J Pucci ◽  
J A Thanassi ◽  
L F Discotto ◽  
R E Kessler ◽  
T J Dougherty
Keyword(s):  
Cell Wall ◽  
Cell Division ◽  
Gene Clusters ◽  
Gram Positive ◽  
Wall Cell ◽  
Identification And Characterization ◽  
Gram Positive Cocci
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