The synthesis of the bacteriocin sakacin A is a temperature-sensitive process regulated by a pheromone peptide through a three-component regulatory system

Article Abstract:

A 23-amino acid peptide called Sap-Ph is a pheromone that regulates bacteriocin production in Lactobacillus sakei Lb706. The peptide is produced by the orf4 gene, which is part of the sap gene cluster.

Bacterial toxins, Pheromones

---

Plantaricin W from Lactobacillus plantarum belongs to a new family of two-peptide lantibiotics

Article Abstract:

Result demonstrate that plantaricin W bacteriocin belongs to a new family of lantibiotics as evidenced by their structural properties. Data show that the two-peptide bacteriocin exhibits a Plwz peptide containing 29 residues and a Plwbeta peptide containing 32 residues, which synergistically work in a 1:1 ratio.

United States, Germany, Statistical Data Included, Physiological aspects, Peptides, Structure-activity relationships (Biochemistry), Lactobacillus plantarum

---

Analysis of the sakacin P gene cluster from Lactobacillus sake Lb674 and its expression in sakacin-negative Lb. sake strains

Article Abstract:

The sakacin P gene cluster from Lactobacillus sake Lb674 has six consecutive genes, sppK, sppR, sppA, spiA, sppT and sppE, which are transcribed in the same direction. The gene cluster is similar to other bacteriocin gene clusters from lactic acid bacteria. The production of sakacin P in Lb674 is regulated by a two-component system. The bacteriocin-negative Lb. sake strains Lb 706X and Lb790 have incomplete spp gene clusters. Deletion and frameshift mutation analysis indicates that sppK, sppT and sppE are necessary for synthesis of the antimicrobial peptide sakacin P in strain Lb706X.

Genetic aspects, Genetic regulation, Genetic transcription, Transcription (Genetics)

Similar abstracts:

• Abstracts: Distinct functions of the leucine-rich repeat transmembrane proteins Capricious and Tartan in the Drosophila tracheal morphogenesis
• Abstracts: Persistence of selected Spartina alterniflora rhizoplane diazotrophs exposed to natural and manipulated environmental variability
• Abstracts: Dominance of Vibrio fischeri in secreted mucus outside the light organ of Euprymna scolopes: the first site of symbiont specificity
• Abstracts: Common degradative pathways of morpholine, thiomorpholine, and piperidine by Mycobacterium aurum MO1: evidence from (super 1)H-nuclear magnetic resonance and ionspray mass spectrometry performed directly on the incubation medium
• Abstracts: Cultivation and in situ detection of a thermophilic bacterium capable of oxidizing propionate in syntrophic association with hydrogenotrophic methanogens in a thermophilic methanogenic granular sludge

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