scholarly journals Sex pheromone plasmid pAD1-encoded aggregation substance of Enterococcus faecalis is positively regulated in trans by traE1

1993 ◽  
Vol 214 (1) ◽  
pp. 333-338 ◽  
Author(s):  
Albrecht MUSCHOLL ◽  
Dominique GALLI ◽  
Gerhard WANNER ◽  
Reinhard WIRTH
Keyword(s):  
Sex Pheromone ◽  
Enterococcus Faecalis ◽  
Aggregation Substance ◽  
In Trans

Bacteriocin plasmid pMB1 of Enterococcus faecalis: identification of the cell aggregation substance after induction by sex pheromone

1994 ◽  
Vol 40 (6) ◽  
pp. 500-503 ◽  
Author(s):  
R. Quirantes ◽  
I. Martín ◽  
E. Valdivia ◽  
A. Gálvez ◽  
M. Martínez-Bueno ◽  
...  
Keyword(s):  
Surface Layer ◽  
Electron Microscope ◽  
Sex Pheromone ◽  
Scanning Electron Microscope ◽  
Enterococcus Faecalis ◽  
Cell Aggregation ◽  
Surface Proteins ◽  
Aggregation Substance ◽  
Culture Supernatants ◽  
Scanning Electron

Strains of Enterococcus faecalis carrying the bacteriocinogenic plasmids pMB1 or pMB 1.1 exhibit a clumping response to culture supernatants of different enterococcal strains. Antibodies raised against cells induced by a homologous pheromone recognize two surface proteins of 152 and 72.5 kDa (the second one is possibly the degradation product of the first), respectively. These antigens are very similar to those found in induced cells of E. faecalis OGIRF(pAM211) as shown by the cross-reaction of the immune sera obtained in this work. We propose that the 152-kDa protein corresponds to the aggregation substance coded by plasmids pMB1 and pMB1.1. Moreover, antibodies raised against induced cells are able to block the pheromone-induced clumping response. When the cells induced to form aggregates by pheromones were examined under a scanning electron microscope they showed a surface layer of hairlike structures.Key words: pMB1 plasmid, sex pheromone, aggregation substance, Enterococcus faecalis.

The pAD1 Sex Pheromone Response in Enterococcus faecalis

1997 ◽  
pp. 1037-1040 ◽  
Author(s):  
S. Fujimoto ◽  
M. Bastos ◽  
K. Tanimoto ◽  
F. An ◽  
K. Wu ◽  
...  
Keyword(s):  
Sex Pheromone ◽  
Enterococcus Faecalis ◽  
Pheromone Response

scholarly journals Co-transfer of vanA and aggregation substance genes from Enterococcus faecalis isolates in intra- and interspecies matings

2007 ◽  
Vol 59 (5) ◽  
pp. 1005-1009 ◽  
Author(s):  
Claudia Paoletti ◽  
Gessica Foglia ◽  
Maria Stella Princivalli ◽  
Gloria Magi ◽  
Emilio Guaglianone ◽  
...  
Keyword(s):  
Enterococcus Faecalis ◽  
Aggregation Substance
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