Linked Life Data

2372315

Source:http://linkedlifedata.com/resource/pubmed/id/2372315

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1990-8-21
pubmed:abstractText
The interaction of the N-terminal DNA-binding domain (56 amino acid residues) of the lac repressor with lac operator DNA was analyzed using two-dimensional NMR spectroscopy. Both half-operators (11 and 14 bp) and a complete fully symmetric 22 bp operator were studied. Two-dimensional nuclear Overhauser effect (2D NOE) spectra of headpiece-operator complexes were taken in both D2O and H2O solutions. Special attention was given to the problem of 1H resonance assignments. Based on an analysis of the proton-proton NOEs, a model for the headpiece-operator complex could be derived. In this model, most of the protein-DNA contracts occur between amino acid residues in the second helix (recognition helix) of the lac headpiece and DNA bases in the major groove. The orientation of this helix with respect to the dyad axis of the operator is opposite to that found in the X-ray structures of several other repressor-operator complexes.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0006-2952
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
40
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
89-96
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
Two-dimensional NMR study of a protein-DNA complex. lac repressor headpiece-operator interaction.
pubmed:affiliation
Department of Chemistry, University of Utrecht, The Netherlands.
pubmed:publicationType
Journal Article