The role of the yeast S-adenosylmethionine: Δ²⁴-sterol-C-methyltransferase
(SCMT) in sterol metabolism was investigated.
Structural analogs of S-adenosylhomocysteine were tested for
inhibition of the SCMT enzyme. A wide inhibitory range by these
compounds was observed, indicating which structural features of the
parent compound are important for binding to the enzyme. The...
I examined, in three separate studies, the active chromatin
structure of the yeast, Saccharomyces cerevisiae.
Yeast contains four proteins having amino acid compositions
typical of the high mobility group (HMG) proteins. Three of these
are eluted from chromatin by 0.35 M NaCl; one is not, but is eluted
by 0.25...
Compounds belonging to the vitamin K family possess anti-hemorrhagic
property, and are used in treating patients suffering
from hypoprothrombinemia and obstructive jaundice. Some of
these compounds also exhibit marked antimicrobial activity toward
various microorganisms. Vitamin K₅, 4-amino-2-methyl-
1-naphthol hydrochloride, a water-soluble analog of vitamin K
has been shown to possess...
Roles of lactic acid bacteria in flour pre-ferment and white
bread were investigated. Volatile compounds produced by the
organisms were identified using gas-liquid chromatography (GLC).
Lactic acid bacteria were isolated from domestic commercial
compressed yeast and active dry yeast. Numbers per gram of
sample were 10⁸ to 10⁹ in compressed...
It has been suggested that cellular damage from oxygen radicals is one of the processes leading to cardio-vascular disease and cancer. Natural antioxidants prevent uncontrolled oxidative reactions by decreasing molecular oxygen levels, scavenging chain-initiating and chain-propagating free radicals, chelating metals, or decomposing peroxides. Beer is rich in antioxidants, derived both...
Yeast mannoproteins released during the process of aging wine on the yeast lees have been reported to make important contributions to wine quality. However, few mannoproteins have been identified in wine and their lifespan during aging is unknown. As a first step towards better understanding the contributions of yeast mannoproteins...