title: [Synthesis and antithrombin activity of phosphoalanine-containing peptides].
abstract: Boc/Tos-L-Phe-L-Arg-Xaa tripeptides (where Xaa = L-Ala-OBut, L-Ala, or DL-AlaP (OC2H5)2) were synthesized by conventional methods of peptide synthesis in solution. Special features of their interaction with thrombin and trypsin were studied. Unlike trypsin, thrombin did not catalyze the hydrolysis of the L-Arg-L-AlaP-(OC2H5)2 bond. The Tos-L-Phe-L-Arg-DL-AlaP(OC2H5)2 peptide was the most active inhibitor of thrombin among all the compounds studied. The relationship between the structure and inhibitory action of the synthesized peptides is discussed. A part of this study was reported in the Augustusburg Conference of Advanced Science: Nucleic Acids--Targets and Tools, September 17-19, 2000, Germany.
authors.affiliation: Institute of Bioorganic Chemistry and Petrochemistry, National Academy of Sciences of Ukraine, ul. Murmanskaya 1, Kiev-94, 02094 Ukraine. Spoyar@bpci.kiev.ua
authors.forename: S A
authors.initials: SA
authors.lastname: Poiarkova
authors.forename: O D
authors.initials: OD
authors.lastname: Fedoriak
authors.forename: V K
authors.initials: VK
authors.lastname: Kibirev
authors.forename: V P
authors.initials: VP
authors.lastname: Kukhar'
mesh_terms: D000409:Alanine / Q000737:chemistry*; D000991:Antithrombins / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D001671:Biochemistry / Q000379:methods; D006868:Hydrolysis; D010455:Peptides / Q000138:chemical synthesis / Q000737:chemistry* / Q000494:pharmacology*; D019606:Phosphoamino Acids / Q000737:chemistry*; D013329:Structure-Activity Relationship
chemical_list: D000991:Antithrombins; D010455:Peptides; D019606:Phosphoamino Acids; D000409:Alanine