Title : Functional interaction of plasminogen activator inhibitor type 1 (PAI-1) and heparin.

Pub. Date : 1991 Jan 29

PMID : 1703436






11 Functional Relationships(s)
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Compound Name
Protein Name
Organism
1 Functional interaction of plasminogen activator inhibitor type 1 (PAI-1) and heparin. Heparin serpin family E member 1 Homo sapiens
2 Recently, it has been demonstrated that the PAI-1-binding site on vitronectin is adjacent to a heparin-binding site (Preissner et al., 1990). Heparin serpin family E member 1 Homo sapiens
3 Furthermore, it can be deduced that the amino acid residues, proposed to mediate heparin binding in the serpins antithrombin III and heparin cofactor II, are conserved in PAI-1. Heparin serpin family E member 1 Homo sapiens
4 At pH 7.4, PAI-1 quantitatively binds to heparin-Sepharose and can be eluted with increasing [NaCl]. Heparin serpin family E member 1 Homo sapiens
5 Binding of PAI-1 to heparin-Sepharose can be efficiently competed with heparin in solution (IC50, 7 microM). Heparin serpin family E member 1 Homo sapiens
6 Binding of PAI-1 to heparin-Sepharose can be efficiently competed with heparin in solution (IC50, 7 microM). Heparin serpin family E member 1 Homo sapiens
7 In the presence of heparin, the protease specificity of PAI-1 toward thrombin is substantially increased. Heparin serpin family E member 1 Homo sapiens
8 This is shown by (i) quenching of thrombin activity of PAI-1 in the presence of heparin and (ii) induction of the formation of SDS-stable complexes between thrombin and PAI-1 by heparin. Heparin serpin family E member 1 Homo sapiens
9 This is shown by (i) quenching of thrombin activity of PAI-1 in the presence of heparin and (ii) induction of the formation of SDS-stable complexes between thrombin and PAI-1 by heparin. Heparin serpin family E member 1 Homo sapiens
10 This is shown by (i) quenching of thrombin activity of PAI-1 in the presence of heparin and (ii) induction of the formation of SDS-stable complexes between thrombin and PAI-1 by heparin. Heparin serpin family E member 1 Homo sapiens
11 This is shown by (i) quenching of thrombin activity of PAI-1 in the presence of heparin and (ii) induction of the formation of SDS-stable complexes between thrombin and PAI-1 by heparin. Heparin serpin family E member 1 Homo sapiens