Proteinaceous factor(s) in culture supernatant fluids of bifidobacteria which prevents the binding of enterotoxigenic Escherichia coli to gangliotetraosylceramide

Article Abstract:

Supernatant fluids of bifidobacteria produces proteinaceous factors that prevent the binding of enterotoxigenic Escherichia coli (ETEC) strains with gangliotetraosylceramide (asialo GM1 or GA1). The ETEC cells are less effective in blocking the binding of Bifidobacterium cells to GA1. This suggests that the two bacterial species identify different binding sites on the GA1 molecule. The proteinaceous factor has anti-infectious activities and a neutral isoelectric point.

Physiological aspects, Anti-infective agents, Observations, Escherichia coli, Binding sites (Biochemistry), Active sites (Biochemistry), Bacterial proteins

---

Purification and characterization of conjugated bile salt hydrolase from Bifidobacterium longum BB536

Article Abstract:

The bifidobacterial response to bile salts is studied. The conjugated bile salt hydrolase (BSH) obtained from Bifidobacterium longum BB536 is purified, and during denaturing polyacrylamide gel electrophoresis its apparent molecular mass is ca. 40000 Da. The hexamer BSH from B. longum BB536 resides in the intracellular space. There is no considerable difference between the initial deconjugation rate and enzymatic efficiency in bile salts for B. longum.

---

Bile salt hydrolase of Bifidobacterium longum - biochemical and genetic characterization

Article Abstract:

Research has been conducted on the bile salt hydrolase (BSH). The results of isolation, purification and characterization of BSH from Bifidobacterium longum are discussed.

Netherlands, Statistical Data Included, Cloning, Microbiological research, Salt, Salt (Food)

Similar abstracts:

• Abstracts: Katp, a novel catalase-peroxidase encoded by the large plasmid of enterohaemorrhagic Escherichia coli 0157:H7
• Abstracts: rRNA stability in heat-killed and UV-irradiated enterotoxigenic Staphylococcus aureus and Escherichia coli O157:H7
• Abstracts: Development of bacterium-based heavy metal biosorbents: enhanced uptake of cadmium and mercury by Escherichia coli expressing a metal binding motif
• Abstracts: Substrate selectivity and biochemical properties of 4-hydroxy- 2-keto-pentanoic acid aldolase from Escherichia coli

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