Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
1999-11-8
pubmed:abstractText
The equilibrium unfolding process of Photobacterium leiognathi Cu,Zn superoxide dismutase has been quantitatively monitored through circular dichroism (CD) and fluorescence spectroscopy, upon increasing the guanidinium hydrochloride concentration. The study has been undertaken for both the holo- and the copper-free derivative to work out the role of copper in protein stability. In both cases the unfolding was reversible. The denaturation curve derived from CD and fluorescence spectroscopy was not coincident, suggesting that the denaturation process occurs through a three-state model with formation of an intermediate monomeric species. The occurrence of an intermediate species has been unambiguously demonstrated following CD and steady-state fluorescence spectra of the enzyme at various concentrations in presence of a fixed amounts of guanidinium hydrochloride.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0003-9861
pubmed:author
pubmed:copyrightInfo
Copyright 1999 Academic Press.
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
370
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
201-7
pubmed:dateRevised
2000-12-18
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Evidence of stable monomeric species in the unfolding of Cu,Zn superoxide dismutase from Photobacterium leiognathi.
pubmed:affiliation
INFM and Department of Experimental Medicine and Biochemical Sciences, University of Rome "Tor Vergata,", Rome, 00133, Italy.
pubmed:publicationType
Journal Article