Induction of Heavy-Metal-Transporting CPX-Type ATPases during Acid Adaptation in Lactobacillus bulgaricus

Induction of heavy-metal-transporting CPX-type ATPases during acid adaptation in Lactobacillus bulgaricus.

Lactobacillus bulgaricus is a lactic acid bacteria (LAB) that, through the production of lactic acid, gradually acidifies its environment during growth. In the course of this process, L. bulgaricus acquires an improved tolerance to acidity. A survey of the recently established genome sequence shows that this bacterium possesses few of the pH control functions that have been described in other L...

Families of soft-metal-ion-transporting ATPases.

Effects of Two Probiotics, Lactobacillus Plantarum and Lactobacillus Bulgaricus on Growth Performance and Intestinal Lactic Acid Bacteria of Cyprinus Carpio

Background: The application of probiotics to aquaculture is rather new. Probiotics affect the intestinal microbial flora of fish and subsequently modulate its immune response and growth performance. OBJECTIVES: This study was conducted to evaluate the effect of food supplementation with L.plantarum and L.bulgaricus on growth performance and gut microbiota of Cyprinus carpio. METHODS: For this p...

Characterization of Lactobacillus bulgaricus Bacteriophage ch2.

Bacteriophage ch2, a virulent bacteriophage of Lactobacillus bulgaricus CH2, was characterized according to its morphology, genome size, structural proteins, and growth kinetics. Electron micrographs revealed that bacteriophage ch2 has an icosahedral head of 50-nm diameter and a long tail of 170 nm. Its genome is linear and 35 kilobases in length, and its structural proteins consist of two majo...

Mechanism of Metal delivery and binding to transport sites of Cu+-transporting ATPases

CopA, a thermophilic membrane ATPase from Archaeoglobus fulgidus, drives the outward movement of Cu across cellular membranes. CopA contains at least two metal binding domains, a regulatory N-terminal Metal Binding Domain (N-MBD) and an occlusion/coordinating metal binding site in the 6, 7 and 8 transmembrane segments. Previous studies showed that the presence of millimolar concentration of Cys...