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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
4
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pubmed:dateCreated |
1985-10-16
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pubmed:abstractText |
The lymphokine osteoclast-activating factor (OAF) was purified to homogeneity. OAF was produced by human peripheral blood mononuclear cells stimulated with concanavalin A and phorbol myristate acetate under serum-free culture conditions. OAF was purified by sequential gel filtration, ion-exchange, and reverse-phase HPLC by following bone resorptive activity. Homogeneity was indicated by the criteria of a single 17,800-dalton band on silver-stained polyacrylamide gels, a single pI 6.8 band on isoelectric focusing, and a single aminoterminal sequence. Purified OAF stimulated half-maximal release of calcium from fetal rat long bones at a concentration of approximately 0.66 ng/ml. The amino-terminal sequence of OAF was determined and found to be identical to that of interleukin 1 beta. Homogeneous OAF possessed an activity of 8.2 X 10(6) U/mg in the thymocyte proliferation assay. Because the m.w., isoelectric point, amino-terminal sequence, and specific activity in the thymocyte proliferation assay are the same for homogeneous OAF and interleukin 1 beta, we conclude that they are the same molecule, and that interleukin 1 beta is the major protein with OAF activity produced by lectin-stimulated peripheral blood mononuclear cells.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Oct
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pubmed:issn |
0022-1767
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
135
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2562-8
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:3875658-Amino Acid Sequence,
pubmed-meshheading:3875658-Bone Resorption,
pubmed-meshheading:3875658-Cell-Free System,
pubmed-meshheading:3875658-Chemistry, Physical,
pubmed-meshheading:3875658-Chromatography, Gel,
pubmed-meshheading:3875658-Chromatography, High Pressure Liquid,
pubmed-meshheading:3875658-Chromatography, Ion Exchange,
pubmed-meshheading:3875658-Humans,
pubmed-meshheading:3875658-Interleukin-1,
pubmed-meshheading:3875658-Isoelectric Focusing,
pubmed-meshheading:3875658-Lymphocyte Activation,
pubmed-meshheading:3875658-Lymphocytes,
pubmed-meshheading:3875658-Lymphokines,
pubmed-meshheading:3875658-Physicochemical Phenomena
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pubmed:year |
1985
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pubmed:articleTitle |
Purification and partial sequence of human osteoclast-activating factor: identity with interleukin 1 beta.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.,
Research Support, Non-U.S. Gov't
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