Molecular genetic studies on plasmid-coded citrate utilization gene.
نویسندگان
چکیده
منابع مشابه
Nucleotide sequence of the gene determining plasmid-mediated citrate utilization.
The citrate utilization determinant from transposon Tn3411 has been cloned and sequenced, and its polypeptide products have been characterized in minicell experiments. The nucleotide sequence was determined for a 2,047-base-pair BglII restriction endonuclease fragment that includes the citrate determinant. This region contains an open reading frame that would encode a 431-amino-acid very hydrop...
متن کاملCitrate utilization by Escherichia coli: plasmid- and chromosome-encoded systems.
Citrate utilization plasmids have previously been identified in atypical Escherichia coli isolates. A different citrate-utilizing (Cit+) variant of E. coli K-12 arose as a consequence of two chromosomal mutations (B. G. Hall, J. Bacteriol. 151:269-273, 1982). The processes controlling the transport of citrate in both a Cit+ chromosomal mutant and a Cit+ plasmid system were studied. Both systems...
متن کاملMolecular Genetic Studies on Human Sarcomas
Genetic aberrations in sarcomas 10 2.1. Cytogenetic alterations 10 2.2. Molecular genetic changes 13 2.2.1. Structural alterations of cellular proto-oncogenes 13 2.2.2. Gene amplifications 13 2.2.3. Alterations of tumor suppressor genes and loss of 17 DNA sequences 2.3. Hereditary predisposition 18 3. DNA amplification 19 3.1. Structure and mechanisms of DNA amplification 20 4. Methods for dete...
متن کاملGlucokinase gene structure. Functional implications of molecular genetic studies.
Glucokinase is expressed in both the liver and the pancreatic beta-cell and plays a key role in the metabolism of glucose by both tissues. Expression of this enzyme is differentially regulated; hepatic glucokinase is stimulated by insulin and repressed by cAMP, whereas beta-cell glucokinase activity is increased by glucose. Recently, the glucokinase gene has been characterized and was found to ...
متن کاملChromosomal Mutation for Citrate Utilization
A mutant strain of Escherichia coli K-12 that utilizes citrate as a sole source of carbon and energy was isolated. Citrate utilization arose as the consequence of two mutations in genes citA and citB, which are linked to the gal operon. The mutant strain expresses a semiconstitutive citrate transport system, and it utilizes both citrate and isocitrate as carbon and energy sources. It is capable...
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: Nippon Saikingaku Zasshi
سال: 1991
ISSN: 1882-4110,0021-4930
DOI: 10.3412/jsb.46.771