Linked Life Data

11481045

Source:http://linkedlifedata.com/resource/pubmed/id/11481045

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2001-8-1
pubmed:abstractText
Human recombinant prethrombin-2 was produced in Escherichia coli. The expressed prethrombin-2 formed intracellular inclusion bodies from which the protein was refolded by a simple one-step dilution process in buffer consisting of 50 mM Tris-HCl, containing 20 mM CaCl(2), 500 mM NaCl, 1 mM EDTA, 600 mM arginine, 1 mM cysteine, 0.1 mM cystine, 10% (v/v) glycerol, and 0.2% (w/v) Brij-58 at pH 8.5. After refolding, prethrombin-2 was purified by hirudin-based COOH-terminal peptide affinity chromatography, and then activated with Echis carinatus snake venom prothrombin activator (ecarin). The activated protein, alpha-thrombin, was then tested for several activities including activity toward chromogenic substrate, release of fibrinopeptide A from fibrinogen, activation of protein C, and thrombin-activatable fibrinolysis inhibitor, reactivity with antithrombin, clotting activity, and platelet aggregation. The kinetic data showed no differences in activity between our recombinant alpha-thrombin and plasma-derived alpha-thrombin. The yield of refolded recombinant human prethrombin-2 was about 4-7% of the starting amount of solubilized protein. In addition, the final yield of purified refolded protein was 0.5-1%, and about 1 mg of recombinant prethrombin-2 could be isolated from 1 liter of E. coli cell culture.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0021-924X
pubmed:author
pubmed:issnType
Print
pubmed:volume
130
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
269-77
pubmed:dateRevised
2007-12-19
pubmed:meshHeading
pubmed:year
2001
pubmed:articleTitle
An efficient refolding method for the preparation of recombinant human prethrombin-2 and characterization of the recombinant-derived alpha-thrombin.
pubmed:affiliation
First Research Department, The Chemo-Sero-Therapeutic Research Institute, Kawabe, Kyokushi, Kikuchi, Kumamoto 869-1298, Japan. soejima@kaketsuken.or.jp
pubmed:publicationType
Journal Article