Denaturant-induced unfolding of the acetyl-esterase from Escherichia coli (Articolo in rivista)

Type
Label
  • Denaturant-induced unfolding of the acetyl-esterase from Escherichia coli (Articolo in rivista) (literal)
Anno
  • 2004-01-01T00:00:00+01:00 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
  • 10.1021/bi048344f (literal)
Alternative label
  • Del Vecchio P.; Graziano G.; Granata V.; Farias T.; Barone G.; Mandrich L.; Rossi M.; Manco G. (2004)
    Denaturant-induced unfolding of the acetyl-esterase from Escherichia coli
    in Biochemistry (Easton)
    (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
  • Del Vecchio P.; Graziano G.; Granata V.; Farias T.; Barone G.; Mandrich L.; Rossi M.; Manco G. (literal)
Pagina inizio
  • 14637 (literal)
Pagina fine
  • 14643 (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
  • 43 (literal)
Rivista
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroFascicolo
  • 46 (literal)
Note
  • ISI Web of Science (WOS) (literal)
Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
  • Univ Naples Federico 2, Dept Chem, I-80126 Naples, Italy Univ Sannio, Dept Biol & Environm Sci, I-82100 Benevento, Italy CNR, Inst Prot Biochem, I-80131 Naples, Italy (literal)
Titolo
  • Denaturant-induced unfolding of the acetyl-esterase from Escherichia coli (literal)
Abstract
  • The stability of acetyl-esterase, Aes, from Escherichia coli against the denaturing action of urea and guanidine hydrochloride, GuHCl, has been investigated by means of circular dichroism and fluorescence measurements. The urea-induced unfolding curves show a single inflection point at 6.2 M urea, whereas the GuHCl-induced curves show two inflection points at 1.4 and 3.1 M GuHCl. The unfolding process is reversible with both urea and GuHCl. These results, together with similar experimental data on the mutant form V20D-Aes, suggest the presence of two domains in the Aes structure, which unfold more or less independently depending on the denaturant used. This is also supported by a 3D model obtained by homology modeling using the structure of brefeldine as a template. The effect of NaCl on the urea-induced unfolding curves of the enzyme has also been investigated. (literal)
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