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Predicate | Object |
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rdf:type | |
lifeskim:mentions |
umls-concept:C0005821,
umls-concept:C0009015,
umls-concept:C0013845,
umls-concept:C0014834,
umls-concept:C0018270,
umls-concept:C0032143,
umls-concept:C0086418,
umls-concept:C0221920,
umls-concept:C1514562,
umls-concept:C1704675,
umls-concept:C1880389,
umls-concept:C1883204,
umls-concept:C1883221,
umls-concept:C1998793,
umls-concept:C2603343
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pubmed:issue |
1
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pubmed:dateCreated |
1994-8-11
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pubmed:abstractText |
To examine whether the epidermal growth factor (EGF)-like domain Pro47-Asp87 is involved in the interaction of tissue plasminogen activator (t-PA) with platelets, we have expressed this domain in E. coli. The peptide fragment was produced from a plasmid expression vector as a fusion protein with beta-galactosidase Met1-Val444 at high yield in eight clones of E. coli. The fusion protein was purified and subjected to mild acid hydrolysis with formic acid, then the peptide Pro47-Asp87, identified by immunoblotting using specific antibodies to t-PA, was isolated by HPLC. After incubation with blood platelets spin labelled with 16-doxylstearic acid or 5-doxylstearic acid, the Pro47-Asp87 peptide fragment reduced fluidity of the membrane lipid bilayer to the same extent as did intact t-PA as indicated by ESR measurements. Our data suggest that the EGF-like domain of t-PA can directly interact with blood platelets and thus it seems to contain those sites of the t-PA molecule that bind the platelet membrane components.
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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:issn |
0001-527X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
41
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
25-34
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8030371-Base Sequence,
pubmed-meshheading:8030371-Blood Platelets,
pubmed-meshheading:8030371-Cloning, Molecular,
pubmed-meshheading:8030371-Electron Spin Resonance Spectroscopy,
pubmed-meshheading:8030371-Epidermal Growth Factor,
pubmed-meshheading:8030371-Escherichia coli,
pubmed-meshheading:8030371-Humans,
pubmed-meshheading:8030371-Molecular Sequence Data,
pubmed-meshheading:8030371-Peptide Fragments,
pubmed-meshheading:8030371-Protein Binding,
pubmed-meshheading:8030371-Protein Structure, Tertiary,
pubmed-meshheading:8030371-Recombinant Proteins,
pubmed-meshheading:8030371-Tissue Plasminogen Activator
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pubmed:year |
1994
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pubmed:articleTitle |
The epidermal growth factor-like domain from tissue plasminogen activator. Cloning in E. coli, purification and ESR studies of its interaction with human blood platelets.
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pubmed:affiliation |
Department of Biophysics, Medical University of Lód?, Poland.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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