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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
19
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pubmed:dateCreated |
1988-7-27
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pubmed:abstractText |
Peptides recognized by rabbit antibodies to vasoactive intestinal peptide (VIP) were extracted from diisopropyl fluorophosphate-treated rat basophilic leukemia (RBL) cells and resolved by filtration on Sephadex G-25 in 50 mM acetic acid. The immunoreactive VIPs of RBL cells eluted from Sephadex G-25 at 35-41%, 53-60%, and 69-73% bed volume, but not at 63-68% as for the neuropeptide VIP1-28. The two forms of immunoreactive VIP larger than VIP1-28 reacted with antibodies to both VIP1-9 and VIP10-28, but the smallest was bound only by antibodies to VIP10-28. The smallest immunoreactive VIP was purified by ion-exchange and reverse-phase high-performance liquid chromatography, and the amino acid sequence was determined to be that of VIP10-28 with asparagine-free acid at the carboxyl terminus rather than the amide of VIP neuropeptide. Challenge of RBL cells with 1 microM ionophore A23187 at 37 degrees C released VIP10-28 rapidly to a mean of 75% at 5 min and 77% at 30 min. The VIP generated and released by mast cells thus consists of a mixture of peptides that all differ structurally from the neuropeptide VIP.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0021-9258
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:day |
5
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pubmed:volume |
263
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
9083-6
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pubmed:dateRevised |
2007-11-14
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pubmed:meshHeading |
pubmed-meshheading:3379062-Amino Acid Sequence,
pubmed-meshheading:3379062-Animals,
pubmed-meshheading:3379062-Basophils,
pubmed-meshheading:3379062-Chromatography, High Pressure Liquid,
pubmed-meshheading:3379062-Intestine, Large,
pubmed-meshheading:3379062-Intestine, Small,
pubmed-meshheading:3379062-Leukemia, Experimental,
pubmed-meshheading:3379062-Mast Cells,
pubmed-meshheading:3379062-Mice,
pubmed-meshheading:3379062-Molecular Sequence Data,
pubmed-meshheading:3379062-Molecular Weight,
pubmed-meshheading:3379062-Radioimmunoassay,
pubmed-meshheading:3379062-Rats,
pubmed-meshheading:3379062-Rats, Inbred Strains,
pubmed-meshheading:3379062-Vasoactive Intestinal Peptide
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pubmed:year |
1988
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pubmed:articleTitle |
Structurally distinctive vasoactive intestinal peptides from rat basophilic leukemia cells.
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pubmed:affiliation |
Howard Hughes Medical Institute, University of California Medical Center, San Francisco 94143-0724.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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