authors | V.N.Bushuev, K.A.Zykov, Z.D.Bespalova, R.S.Bibilashvili, E.E.Efr S.P.Golitsyn, L.I.Kaznacheeva, T.V.Kuzhetsova, P.S.Levashov, V.P.Masenko, N.A.Mironova, F.S.Molokoedov, P.N.Rutkevich, A.V.R T.V.Sharf, M.V.Sidorova, T.N.Vlasik, E.V.Yanushevskaya |
Molecule: Analog Of The Fragment 197-221 Of Beta-1 Adrenore Chain: A Fragment: Extracellular Topological Domain Synonym: Beta-1 Adrenoreceptor, Beta-1 Adrenoceptor Engineered: Yes
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Synthetic: Yes Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Other_details: The Peptide Was Prepared By Automatic Solid Synthesis (Spps) Using The Fmoc Strategy Starting From 0.25 Commercial N Fmoc-Lys(Boc)-Polymer (Bachem, Switzerland). A Copolymer Of Styrene With 1% Divinylbenzene With A Hydroxymethylphenyloxymethyl Anchoring Group (The Wang-Poly Used As A Carrier. The Side Functions Of The Amino Acids We Blocked By The Following Protective Groups: But For Hydroxy Functions Of Ser And Tyr; But For Carboxyl Functions Of Asp Boc For -Amino Functions Of Lys; Trt For Carboxylamide Grou Sulfhydryl Functions Of Residues Cys198 And Cys220; Acm For Sulfhydryl Functions Of Residues Cys209 And Cys215, And Pbf Guanidine Function Of Arg. The Amino Acid Chain Was Elongat Stepwise Starting From C-Terminus Using Carbodiimide In The Of 1-Hydroxybenzotriasole. When The Spps Was Finished, The Was Cleaved From Carrier With The Simultaneous Removal Of T Labile Protective Groups By Treatment With Trifluoracetic A The Addition Of Water, Triisopropylsilane And Dithiothreito Synthesized [Cys(Acm)2]Peptide Was Purified By Hplc To A Pu 90%. The Intramolecular S-S Bridge Between Cys198 And Cys22 With Hydrogen Peroxide At Ph 8. The Target Monocyclic Inter Of Peptide Was Purified By Hplc To A Purity 90-95%. The Pro Characterized By Maldi-Tof Mass Spectrometry. The Second Di Bond Between Cys209 And Cys215 Was Formed By The Treatment Monocyclic Intermediate [Cys(Acm)2]Peptide With Iodine (For Simultaneous Cleavage Of Acm Group And Formation S-S Bridge Methanol. The Bicyclic Target Product Was Purified By Hplc Purity 98% And Characterized By Maldi-Tof Mass Spectrometry
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