Broad-host-range shuttle vectors for screening of regulated promoter activity in viridans group streptococci: isolation of a pH-regulated promoter

Article Abstract:

Results demonstrate that the pH-regulated promoter of Streptococcus gordonii enables the bacterium to sense changes in the environmental pH and turn on the gene activation mechanism. Data further reveal that such cue-regulated vectors are useful in research on adapttive gene expression in viridans group of streptococci.

Statistical Data Included, Streptococcus, Bacteria, Pathogenic, Pathogenic bacteria, Gene expression, Promoters (Genetics)

---

Identification and characterization of two novel clostridial bacteriocins, Circularin A and Closticin 574

Article Abstract:

Results describe characterization of the new antibacterial peptides isolated from clostridial species in terms of their purification, structural genes encoding the peptides, and N-terminal sequence of the peptides. Data indicate that closticin 574 is an 82-amino-acid bacteriocin, while circularin A is produced as a propeptide of 72 amino acids.

Bacteriostats, Antibacterial agents, Clostridium

---

Functional analysis of the gene cluster involved in production of the bacteriocin circularin A by Clostridium beijerinckii ATCC 25752

Article Abstract:

Research demonstrates that a 12 kilobase region of the antibacterial peptide circularin A structural gene encodes the proteins involved in the production and secretion of the peptide in Clostridium beijerinckii ATCC 25752. Data indicate that a minimum of five genes are required for the expression of circularin A and that an ATP-binding CirD protein together with CirB and CirC produce the bacteriocin.

Antiinfective Preparations, Anti-infective agents, Genetic aspects, Microbiological synthesis, Bacteriocins

Similar abstracts:

• Abstracts: Macrogeographic patterns of breeding system diversity in the Daphnia pulex group from the United States and Mexico
• Abstracts: The neuron-specific RNA-binding protein ELAV regulates neuroglian alternative splicing in neurons and binds directly to its pre-mRNA
• Abstracts: Toxic effects of linear alkylbenzene sulfonate on metabolic activity, growth rate, and microcolony formation of Nitrosomonas and Nitrosospira strains
• Abstracts: A second quorum-sensing system regulates cell surface properties but not phenazine antibiotic production in Pseudomonas aureofaciens
• Abstracts: Cloning of a nitrilase gene from the cyanobacterium Synechocystis sp. strain PCC6803 and heterologous expression and characterization of the encoded protein

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.