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Francesco De Lorenzo | |
---|---|
Minister of Health | |
In office 22 July 1989 –21 February 1993 | |
Prime Minister | Giulio Andreotti Giuliano Amato |
Preceded by | Carlo Donat-Cattin |
Succeeded by | Raffaele Costa |
Minister of the Environment | |
In office 1 August 1986 –17 April 1987 | |
Prime Minister | Bettino Craxi |
Preceded by | Valerio Zanone |
Succeeded by | Mario Pavan |
Member of the Chamber of Deputies | |
In office 12 July 1983 –14 April 1994 | |
Personal details | |
Born | Francesco De Lorenzo 5 June 1938 Naples,Italy |
Political party | Italian Liberal Party |
Height | 1.73 m (5 ft 8 in) |
Spouse | Marinella De Lorenzo |
Children | Ferruccio De Lorenzo,Alessandra De Lorenzo,Claudia De Lorenzo |
Parent |
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Occupation | Politician |
Francesco De Lorenzo (born June 5, 1938 in Naples) is an Italian physician and politician and is a member of the Italian Liberal Party.
He was born in Naples on June 5, 1938. He was minister of health (1989–1993) in the Government of Italy. He served in the cabinet of Prime Minister Bettino Craxi (1986–1987), Giulio Andreotti (1989–1992) and Giuliano Amato (1992–1993). He also served in the Chamber of Deputies of Italy in Legislature IX (1983–1987), Legislature X (1987–1992) and Legislature XI (1992–1994).
He was a central figure in the Tangentopoli bribery scandal uncovered by the Mani pulite investigations of the early 1990s.
The Ames test is a widely employed method that uses bacteria to test whether a given chemical can cause mutations in the DNA of the test organism. More formally, it is a biological assay to assess the mutagenic potential of chemical compounds. A positive test indicates that the chemical is mutagenic and therefore may act as a carcinogen, because cancer is often linked to mutation. The test serves as a quick and convenient assay to estimate the carcinogenic potential of a compound because standard carcinogen assays on mice and rats are time-consuming and expensive. However, false-positives and false-negatives are known.
Auxotrophy is the inability of an organism to synthesize a particular organic compound required for its growth. An auxotroph is an organism that displays this characteristic; auxotrophic is the corresponding adjective. Auxotrophy is the opposite of prototrophy, which is characterized by the ability to synthesize all the compounds needed for growth.
A catalytic triad is a set of three coordinated amino acids that can be found in the active site of some enzymes. Catalytic triads are most commonly found in hydrolase and transferase enzymes. An acid-base-nucleophile triad is a common motif for generating a nucleophilic residue for covalent catalysis. The residues form a charge-relay network to polarise and activate the nucleophile, which attacks the substrate, forming a covalent intermediate which is then hydrolysed to release the product and regenerate free enzyme. The nucleophile is most commonly a serine or cysteine amino acid, but occasionally threonine or even selenocysteine. The 3D structure of the enzyme brings together the triad residues in a precise orientation, even though they may be far apart in the sequence.
Micrococcal nuclease is an endo-exonuclease that preferentially digests single-stranded nucleic acids. The rate of cleavage is 30 times greater at the 5' side of A or T than at G or C and results in the production of mononucleotides and oligonucleotides with terminal 3'-phosphates. The enzyme is also active against double-stranded DNA and RNA and all sequences will be ultimately cleaved.
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The enzyme threonine-phosphate decarboxylase (EC 4.1.1.81) catalyzes the chemical reaction
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The enzyme imidazoleglycerol-phosphate dehydratase (EC 4.2.1.19) catalyzes the chemical reaction
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In enzymology, a 2-methylcitrate synthase (EC 2.3.3.5) is an enzyme that catalyzes the chemical reaction
In enzymology, a glycerophospholipid acyltransferase (CoA-dependent) is an enzyme that catalyzes the chemical reaction
In enzymology, a nicotinate-nucleotide-dimethylbenzimidazole phosphoribosyltransferase is an enzyme that catalyzes the chemical reaction
In enzymology, a hydroxyethylthiazole kinase is an enzyme that catalyzes the chemical reaction
In enzymology, a protein-histidine tele-kinase is an enzyme that catalyzes the chemical reaction
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In enzymology, a ceramide phosphoethanolamine synthase is an enzyme that catalyzes the chemical reaction