1QNH Isomerase Immunosuppressant date Oct 14, 1999
title Plasmodium Falciparum Cyclophilin (Double Mutant) Complexed With Cyclosporin A
authors M.R.Peterson, D.R.Hall, W.N.Hunter
compound source
Molecule: Peptidyl-Prolyl Cis-Trans Isomerase
Chain: A, B
Synonym: Ppiase, Rotamase, Cyclophilin A
Engineered: Yes
Organism_scientific: Plasmodium Falciparum
Organism_taxid: 5833
Expression_system: Escherichia Coli
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)

Molecule: Cyclosporin A
Chain: C, D
Synonym: Cyclosporine, Ciclosporin, Ciclosporine
Engineered: Yes

Synthetic: Yes
Organism_scientific: Tolypocladium Inflatum
Organism_taxid: 29910
symmetry Space Group: P 21 21 2
R_factor 0.17 R_Free 0.21
length a length b length c angle alpha angle beta angle gamma
92.110 115.120 39.020 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.1 Å
ligand ABA, BMT, DAL, MLE, MVA, SAR enzyme Isomerase E.C. BRENDA
related structures by homologous chain: 1QNG
A, B

Primary referenceThe three-dimensional structure of a Plasmodium falciparum cyclophilin in complex with the potent anti-malarial cyclosporin A., Peterson MR, Hall DR, Berriman M, Nunes JA, Leonard GA, Fairlamb AH, Hunter WN, J Mol Biol 2000 Apr 21;298(1):123-33. PMID:10756109
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (67 Kb) [Save to disk]
  • Biological Unit Coordinates (1qnh.pdb1.gz) 32 Kb
  • Biological Unit Coordinates (1qnh.pdb2.gz) 32 Kb
  • LPC: Ligand-Protein Contacts for 1QNH
  • CSU: Contacts of Structural Units for 1QNH
  • Likely Quarternary Molecular Structure file(s) for 1QNH
  • Structure Factors (186 Kb)
  • Retrieve 1QNH in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1QNH from S2C, [Save to disk]
  • Re-refined 1qnh structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1QNH 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 1QNH
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1QNH, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1qnha_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1qnhb_, region B [Jmol] [rasmolscript] [script source]
  • Fold representative 1qnh 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: [1qnh_B] [1qnh] [1qnh_A] [1qnh_C] [1qnh_D]
  • SWISS-PROT database: [Q25756]
  • Domain organization of [Q25756_PLAFA] by SWISSPFAM
  • Other resources with information on 1QNH
  • Community annotation for 1QNH 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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