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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1994-10-28
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pubmed:abstractText |
The Su autoantigen was characterized biochemically using human and murine autoimmune sera and the clinical significance of anti-Su antibodies was studied in 236 Japanese and 160 American patients with systemic rheumatic diseases. Anti-Su in immunodiffusion (ID) was strongly associated with immunoprecipitation of one or more 100- to 102-kDa proteins by MRL/lpr mouse sera (27/32 of ID positive vs 4/20 of ID negative, P = 0.000016), and all four human anti-Su reference sera immunoprecipitated the 100/102-kDa protein(s). In addition, all sera immunoprecipitated a less efficiently labeled approximately 200-kDa protein that comigrated on sucrose density gradients with the 100/102-kDa proteins. Based on these data, a complex of the 100/102-kDa and 200-kDa proteins is likely to be the main target of anti-Su antibodies. Three of four anti-Su monospecific sera were negative for immunofluorescent antinuclear antibodies (ANA), suggesting anti-Su antibodies may be associated with a negative ANA in some cases. Autoantibodies to Su were detected frequently by immunoprecipitation in systemic lupus erythematosus (17-21%), scleroderma (13-20%), and overlap syndrome (22-40%) and were associated with autoantibodies to Ku.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Autoantibodies,
http://linkedlifedata.com/resource/pubmed/chemical/Autoantigens,
http://linkedlifedata.com/resource/pubmed/chemical/Nuclear Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/Sucrose
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pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0090-1229
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
73
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pubmed:owner |
NLM
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pubmed:authorsComplete |
N
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pubmed:pagination |
132-41
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:7923910-Animals,
pubmed-meshheading:7923910-Antigen-Antibody Reactions,
pubmed-meshheading:7923910-Autoantibodies,
pubmed-meshheading:7923910-Autoantigens,
pubmed-meshheading:7923910-Centrifugation, Density Gradient,
pubmed-meshheading:7923910-Fluorescent Antibody Technique,
pubmed-meshheading:7923910-Humans,
pubmed-meshheading:7923910-Immunoblotting,
pubmed-meshheading:7923910-Immunodiffusion,
pubmed-meshheading:7923910-Mice,
pubmed-meshheading:7923910-Nuclear Proteins,
pubmed-meshheading:7923910-Precipitin Tests,
pubmed-meshheading:7923910-Proteins,
pubmed-meshheading:7923910-Rheumatic Diseases,
pubmed-meshheading:7923910-Sucrose
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pubmed:year |
1994
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pubmed:articleTitle |
Characterization of the Su antigen, a macromolecular complex of 100/102 and 200-kDa proteins recognized by autoantibodies in systemic rheumatic diseases.
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pubmed:affiliation |
Department of Medicine, Thurston Arthritis Research Center, Chapel Hill, North Carolina.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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