Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
15
pubmed:dateCreated
1999-5-17
pubmed:abstractText
Heteronuclear multidimensional NMR spectroscopy was used to investigate in detail the structural and dynamical properties of a partially unfolded intermediate of the reduced high-potential iron-sulfur protein (HiPIP) from Chromatium vinosum present in 4 M guanidinium chloride solution. After an extensive assignment of 15N and 1H resonances, NOE data, proton longitudinal relaxation times, and 3JHNHalpha coupling constants as well as 15N relaxation parameters (T1, T2, T1rho, and 1H-15N NOE) were obtained and used to build a structural model of the intermediate. The Fe4S4 cluster of the HiPIP plays a decisive role in determining the resulting structure, which is random in the N-terminal half of the protein and partially organized in the loops between the cysteines bound to the cluster. Consistent with the structural data, the backbone mobility is typical of folded proteins in the regions where there are elements of structure and increases with the structural indetermination.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Apr
pubmed:issn
0006-2960
pubmed:author
pubmed:issnType
Print
pubmed:day
13
pubmed:volume
38
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
4669-80
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1999
pubmed:articleTitle
Structural and dynamical properties of a partially unfolded Fe4S4 protein: role of the cofactor in protein folding.
pubmed:affiliation
Department of Chemistry, University of Florence, Via Gino Capponi, 7, 50121 Florence, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't