Linked Life Data

8977125

Source:http://linkedlifedata.com/resource/pubmed/id/8977125

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
1997-1-31
pubmed:abstractText
The DNA fragment, d(CG)3, was co-crystallized with N-(3-amino-propyl)-N-(5-aminopropyl)-l,4 -diaminobutane (thermospermine; PA(334)), a polyamine metabolized from the nucleic acid. By using a good crystal with dimensions of 0.5 x 0.5 x 0.5 mm3, X-ray intensity data were collected up to 1.0 A resolution. Two thermospermine molecules and a magnesium cation were bound to the left-handed double-helical d(CG)3 molecule. The d(CG)3 molecule adopted the left-handed Z-conformation and two thermospermine molecules and a magnesium cation neutralized the negative charges of the phosphate groups of the d(CG)3 molecule. Furthermore, the binding modes between d(CG)3 and thermospermine were different from those of d(CG)3 complexes with PA(24), spermidine and spermine. This is the first case in which it was determined by X-ray crystallographic analysis that one of two thermospermine molecules bound three d(CG)3 duplexes which were symmetrically related to each other, and the other formed two hydrogen bonds at the N(5) and N(9) atoms with two adjacent nucleotide phosphate groups of a single d(CG)3 strand at the minor groove. Furthermore, no direct coordination bond was found between the d(CG)3 molecule and the magnesium cation.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
0014-5793
pubmed:author
pubmed:issnType
Print
pubmed:day
2
pubmed:volume
398
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
291-6
pubmed:dateRevised
2000-12-18
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Interaction between left-handed Z-DNA and polyamine - 3. The crystal structure of the d(CG)3 and thermospermine complex.
pubmed:affiliation
Osaka University of Pharmaceutical Sciences, Takatsuki, Japan. ohishi@oysun01.oups.ac.jp
pubmed:publicationType
Journal Article