Enterocin
Mostrando 25-32 de 32 artigos, teses e dissertações.
-
25. The Genes Coding for Enterocin EJ97 Production by Enterococcus faecalis EJ97 Are Located on a Conjugative Plasmid
Enterococcus faecalis EJ97 produces a cationic bacteriocin (enterocin EJ97) of low molecular mass (5,327.7 Da). The complete amino acid sequence of enterocin EJ97 was elucidated after automated microsequencing of oligopeptides generated by endoproteinase GluC digestion and cyanogen bromide treatment. Transfer of the 60-kb conjugative plasmid pEJ97 from the b
American Society for Microbiology.
-
26. Generation and Utilization of Polyclonal Antibodies to a Synthetic C-Terminal Amino Acid Fragment of Divercin V41, a Class IIa Bacteriocin
Polyclonal antibodies have been generated by immunization of rabbits with a chemically synthesized C-terminal part of divercin V41 (DvnCt) conjugated to the carrier protein keyhole limpet hemocyanin (KLH). The sensitivity and reactivity of the DvnCt-KLH-generated antibodies were evaluated by enzyme-linked immunosorbent assay (ELISA) using supernatant from cu
American Society for Microbiology.
-
27. Enterocins L50A and L50B, Two Novel Bacteriocins from Enterococcus faecium L50, Are Related to Staphylococcal Hemolysins
Enterocin L50 (EntL50), initially referred to as pediocin L50 (L. M. Cintas, J. M. Rodríguez, M. F. Fernández, K. Sletten, I. F. Nes, P. E. Hernández, and H. Holo, Appl. Environ. Microbiol. 61:2643–2648, 1995), is a plasmid-encoded broad-spectrum bacteriocin produced by Enterococcus faecium L50. It has previously been purified from the culture supernata
American Society for Microbiology.
-
28. Atypical Genetic Locus Associated with Constitutive Production of Enterocin B by Enterococcus faecium BFE 900
A purified bacteriocin produced by Enterococcus faecium BFE 900 isolated from black olives was shown by Edman degradation and mass spectrometric analyses to be identical to enterocin B produced by E. faecium T136 from meat (P. Casaus, T. Nilsen, L. M. Cintas, I. F. Nes, P. E. Hernández, and H. Holo, Microbiology 143:2287–2294, 1997). The structural gene w
American Society for Microbiology.
-
29. An Exported Inducer Peptide Regulates Bacteriocin Production in Enterococcus faecium CTC492
Production of the bacteriocins enterocin A and enterocin B in Enterococcus faecium CTC492 was dependent on the presence of an extracellular peptide produced by the strain itself. This induction factor (EntF) was purified, and amino acid sequencing combined with DNA sequencing of the corresponding gene identified it as a peptide of 25 amino acids. The gene en
American Society for Microbiology.
-
30. Characterization of a New Operon, as-48EFGH, from the as-48 Gene Cluster Involved in Immunity to Enterocin AS-48
Enterocin AS-48 is a cyclic peptide produced by Enterococcus faecalis S-48 whose genetic determinants have been identified in the conjugative plasmid pMB2. A region of 7.8 kb, carrying the minimum information required for production of and immunity against AS-48, had been previously cloned and sequenced in pAM401 (pAM401-52). In this region, the as-48A struc
American Society for Microbiology.
-
31. Evaluation of lactic acid bacterium fermentation products and food-grade chemicals to control Listeria monocytogenes in blue crab (Callinectes sapidus) meat.
Fresh blue crab (Callinectes sapidus) meat was obtained from retail markets in Florida and sampled for viable Listeria monocytogenes. The pathogen was found in crabmeat in three of four different lots tested by enrichment and at levels of 75 CFU/g in one of the same four lots by direct plating. Next, crabmeat was steam sterilized, inoculated with a three-str
-
32. Structure-Function Analysis of Immunity Proteins of Pediocin-Like Bacteriocins: C-Terminal Parts of Immunity Proteins Are Involved in Specific Recognition of Cognate Bacteriocins
The immunity proteins of pediocin-like bacteriocins show a high degree of specificity with respect to the pediocin-like bacteriocin they recognize and confer immunity to. The aim of this study was to identify regions of the immunity proteins that are involved in this specific recognition. Six different hybrid immunity proteins were constructed from three dif
American Society for Microbiology.