Design, Synthesis and Structure–Activity Relationship of New 109–116 Fragment Analogues of Antistasin and Ghilantens |
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Authors: | Dantcho L Danalev Lyubomir T Vezenkov Valentin Lozanov Anastasia Bakalova |
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Institution: | 1. Department of Organic Chemistry, University of Chemical Technology and Metallurgy, 1756, Sofia, Bulgaria 2. Department of Chemistry and Biochemistry, Medical University, 1431, Sofia, Bulgaria 3. Agro Bio Institute, 8 Dragan Tzankov Blvd., 1164, Sofia, Bulgaria
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Abstract: | A series of new low molecular weight peptide inhibitors, antistasin and ghilantens fragment analogues was designed and synthesized by manual solid phase peptide synthesis. These compounds only differ either by the amino acid placed in position 109 (different basic amino acids) and 115 position (Val or Ile) or 116 position Pro (as free acid or as amide). The anticoagulant activity of the different synthesized peptide mimetics was measured. Further the IC50 was obtained by means of Activated Partial Thromboplastin Time measurement. Using Mihaelis–Menthen equation the mixed type of inhibition toward thrombin and Factor Xa is determined. |
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