2LSQ Immune System date May 04, 2012
title Analog Of The Fragment 197-221 Of Beta-1 Adrenoreceptor
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
compound source
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
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
methodSolution NMR
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (106 Kb) [Save to disk]
  • Biological Unit Coordinates (2lsq.pdb1.gz) 7 Kb
  • CSU: Contacts of Structural Units for 2LSQ
  • Original NMR restraints for 2LSQ from PDB
  • Retrieve 2LSQ in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2LSQ from S2C, [Save to disk]
  • View 2LSQ in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 2LSQ
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 2LSQ, from MSDmotif at EBI
  • Fold representative 2lsq from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2lsq_A] [2lsq]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Other resources with information on 2LSQ
  • Community annotation for 2LSQ at PDBWiki (http://pdbwiki.org)

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