Linked Life Data

7621866

Source:http://linkedlifedata.com/resource/pubmed/id/7621866

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
7
pubmed:dateCreated
1995-8-29
pubmed:abstractText
Although antibodies (Ab) specific for double-stranded (ds) DNA are thought to be involved in the etiopathogenesis of systemic lupus erythematosus (SLE), the fine structure of their DNA targets remains elusive. We have adapted a polymerase chain reaction (PCR)-assisted immunoprecipitation method to define the binding sites in DNA sequences recognized by high affinity anti-dsDNA Ab of SLE patients. SLE sera were used to bind templates from a pool of double-stranded oligonucleotides (ON). A central part of 20 base-pair random sequence was flanked by restriction endonuclease recognition sites and sequences complementary to predefined PCR primers. Immunoselected ON were precipitated, isolated from the immune complexes and then subjected to a further immunoprecipitation step after amplification by PCR. After five cycles of immunoprecipitation and PCR, the resulting ON were cloned. Sequence analysis revealed that sera from SLE patients and two human monoclonal anti-dsDNA Ab obtained from SLE patients preferentially select sequences expected to form non-B-DNA structures. Inhibition studies of the Farr assay confirmed the increased affinity of the selected epitopes for anti-DNA Ab as compared to random B-DNA.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jul
pubmed:issn
0014-2980
pubmed:author
pubmed:issnType
Print
pubmed:volume
25
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1897-904
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1995
pubmed:articleTitle
Preferential recognition of specific DNA motifs by anti-double-stranded DNA autoantibodies.
pubmed:affiliation
Institute of Clinical Immunology and Rheumatology, Department of Medicine III, Erlangen, Germany.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't