A TRANSGLUCOSYLASE OF STREPTOCOCCUS BOVIS

A Transglucosylase of Streptococcus Bovis.

1. A transglucosylase has been separated from the alpha-amylase of Streptococcus bovis by chromatography of the cell extract on DEAE-cellulose. 2. The transglucosylase can synthesize higher maltodextrins from maltotriose, but maltose, isomaltose and panose do not function as donors. 3. Iodine-staining polysaccharide may be synthesized from maltotriose provided that glucose is removed. Synthesis...

Streptococcus bovis meningitis.

Nisin resistance of Streptococcus bovis.

The growth of Streptococcus bovis JB1 was initially inhibited by nisin (1 microM), and nisin caused a more than 3-log decrease in viability. However, some of the cells survived, and these nisin-resistant cells grew as rapidly as untreated ones. To see if the nisin resistance was merely a selection, nisin-sensitive cells were obtained from agar plates lacking nisin. Results indicated that virtua...

Streptococcus bovis meningitis and hemorrhoids.

We report a case of Streptococcus bovis (Streptococcus gallolyticus subsp. pasteurianus) meningitis, a rare cause of central nervous system (CNS) infection in an adult, and comment on the importance of investigation of the lower gastrointestinal tract to identify a portal of entry in cases of systemic Streptococcus bovis infection.

Metabolism of the reserve polysaccharide of Streptococcus mitis: Properties of a transglucosylase.

1. A transglucosylase has been separated from cell extracts of Streptococcus mitis, and has been partially purified by chromatography on DEAE-cellulose. 2. The transglucosylase was present in the six strains of Streptococcus mitis that were examined, and the activity of the enzyme was the same whether the cells had grown on glucose or on maltose. Four of the strains could store intracellular io...