sub:provenance { beldoc:dce:description "Approximately 61,000 statements." ; dce:rights "Copyright (c) 2011-2012, Selventa. All rights reserved." ; dce:title "BEL Framework Large Corpus Document" ; pav:authoredBysub:_6 ; pav:version "20131211" . sub:_5prov:value "Tissue kallikrein and factor Xa were found to activate tissue plasminogen activator (t-PA) at a rate comparable with that of plasmin. During the activation reaction, the single-chain molecule was converted into a two-chain form. A slight t-PA activating activity was also found in plasma kallikrein. Other activated coagulation factors, factor XIIa, factor XIa, factor IXa, factor VIIa, thrombin and activated protein C had no effect on t-PA activation. t-PA was also activated by a tissue kallikrein-like enzyme that was isolated from the culture medium of melanoma cells. These results indicate that tissue kallikrein and factor Xa may participate in the extrinsic pathway of human fibrinolysis." ; prov:wasQuotedFrompubmed:6566616 . sub:_6rdfs:label "Selventa" . sub:assertionprov:hadPrimarySourcepubmed:6566616 ; prov:wasDerivedFrombeldoc: , sub:_5 . }