NUCLEIC ACID SYNTHESIS IN PENICILLIN-TREATED ALCALIGENES FAECALIS
نویسندگان
چکیده
منابع مشابه
Nucleic Acid Synthesis in Mustard Gas-treated E. Coli B
Following exposure to dilute aqueous solutions of mustard gas, suspensions of E. coli B do not produce DNA although PNA is formed in nearly normal amounts. When the treated cells are infected with virus T(2), DNA is synthesized and RNA is not. The DNA formation continued after the virus titer reached a maximum.
متن کاملThe Metabolism of Xanthine-8-carboxylic Acid by Alcaligenes Faecalis.
Alcaligenes jaecalis is capable of growing in response to simple pteridines as the sole source of nitrogen (1). Simple pteridines appear to be metabolized in this organism through the common intermediate, tetraoxypteridine (1, 2)) and cell-free extracts of the organism catalyze the conversion of tetraoxypteridine to xanthine-8-carboxylic acid (1). In these conversions the nitrogen atoms of the ...
متن کاملMolecular cloning and analysis of the gene encoding the thermostable penicillin G acylase from Alcaligenes faecalis.
Alcaligenes faecalis penicillin G acylase is more stable than the Escherichia coli enzyme. The activity of the A. faecalis enzyme was not affected by incubation at 50 degrees C for 20 min, whereas more than 50% of the E. coli enzyme was irreversibly inactivated by the same treatment. To study the molecular basis of this higher stability, the A. faecalis enzyme was isolated and its gene was clon...
متن کاملA uridine diphosphoacetylmuramyl hexapeptide from penicillin-treated Streptococcus faecalis.
Uridine diphosphoacetylmuramyl peptide compounds were first isolated from penicillin-treated Staphylococcus aureus, in which they accumulate (1). The major compound that accumulates in this circumstance contains five amino acids and is represented as UDP-Glu’.lc-lactyl-L-Ala-n-Glu-L-Lys-o-;llan-Ala1 (l-3). This compound is believed to be a precursor of the cell wall, which contains, among other...
متن کاملPurification and properties of inducible penicillin beta-lactamase isolated from Alcaligenes faecalis.
An inducible penicillin beta-lactamase was purified from a strain of Alcaligenes faecalis resistant to beta-lactam antibiotics. The purified enzyme preparation gave a single protein band on polyacrylamide gel electrophoresis, and its molecular weight was 29,000 based on sodium dodecyl sulfate-acrylamide gel electrophoresis. Its isoelectric point was 5.9. The enzyme more rapidly hydrolyzed penic...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Bacteriology
سال: 1958
ISSN: 0021-9193,1098-5530
DOI: 10.1128/jb.76.6.666-667.1958