1CYN Isomerase Immunosuppressant date May 22, 1995
title Cyclophilin B Complexed With [D-(Cholinylester)Ser8]-Cyclosp
authors V.Mikol, J.Kallen, M.D.Walkinshaw
compound source
Molecule: Peptidyl-Prolyl Cis-Trans Isomerase B
Chain: A
Synonym: Ppiase B, Rotamase B, Cyclophilin B
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Cyclophilin
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_gene: Cyclophilin

Molecule: Cyclosporin A
Chain: C
Synonym: Cyclosporine, Ciclosporin, Ciclosporine
Engineered: Yes
Other_details: D-(Cholinyl)Ser At Position 1

Synthetic: Yes
Organism_scientific: Tolypocladium Inflatum
Organism_taxid: 29910
symmetry Space Group: P 21 21 21
R_factor 0.160 R_Free NULL
length a length b length c angle alpha angle beta angle gamma
37.460 46.944 115.442 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.85 Å
ligand ABA, BMT, DAL, DSN, MLE, MVA, SAR enzyme Isomerase E.C. BRENDA
related structures by homologous chain: 1DYW, 1E3B

Primary referenceX-ray structure of a cyclophilin B/cyclosporin complex: comparison with cyclophilin A and delineation of its calcineurin-binding domain., Mikol V, Kallen J, Walkinshaw MD, Proc Natl Acad Sci U S A 1994 May 24;91(11):5183-6. PMID:8197205
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (41 Kb) [Save to disk]
  • Biological Unit Coordinates (1cyn.pdb1.gz) 36 Kb
  • LPC: Ligand-Protein Contacts for 1CYN
  • CSU: Contacts of Structural Units for 1CYN
  • Likely Quarternary Molecular Structure file(s) for 1CYN
  • Retrieve 1CYN in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1CYN from S2C, [Save to disk]
  • View 1CYN 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 1CYN
  • 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 1CYN, from MSDmotif at EBI
  • Genome occurence of 1CYN's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1cyna_, region A [Jmol] [rasmolscript] [script source]
  • Fold representative 1cyn from FSSP and Dali (Families of Structurally Similar Proteins)
  • Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH
  • Summaries and structural analyses of PDB data files from PDBSum
  • Identification of Protein Pockets & Cavities at CASTp
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1cyn_C] [1cyn_A] [1cyn]
  • SWISS-PROT database: [P23284]
  • Domain organization of [PPIB_HUMAN] by SWISSPFAM
  • Other resources with information on 1CYN
  • Community annotation for 1CYN at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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