1OSA Calcium-Binding Protein date Aug 11, 1993
title Crystal Structure Of Recombinant Paramecium Tetraurelia Calm 1.68 Angstroms Resolution
authors M.Sundaralingam
compound source
Molecule: Calmodulin
Chain: A
Engineered: Yes
 Organism_scientific: Paramecium Tetraurelia
Organism_taxid: 5888
Expression_system: Escherichia Coli
Expression_system_taxid: 562
symmetry Space Group: P 1
R_factor 0.194 R_Free NULL
crystal
cell
length a length b length c angle alpha angle beta angle gamma
29.890 53.420 25.350 93.67 96.88 89.24
method X-Ray Diffractionresolution 1.68 Å
ligand CA enzyme
related structures by homologous chain: 1PRW, 1QTX
Gene
Ontology
ChainFunctionProcessComponent
A
  • enzyme regulator activity


    • Primary referenceStructure of the recombinant Paramecium tetraurelia calmodulin at 1.68 A resolution., Ban C, Ramakrishnan B, Ling KY, Kung C, Sundaralingam M, Acta Crystallogr D Biol Crystallogr. 1994 Jan 1;50(Pt 1):50-63. PMID:15299476
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (32 Kb) [Save to disk]
  • Biological Unit Coordinates (1osa.pdb1.gz) 28 Kb
  • LPC: Ligand-Protein Contacts for 1OSA
  • CSU: Contacts of Structural Units for 1OSA
  • Likely Quarternary Molecular Structure file(s) for 1OSA
  • Structure Factors (89 Kb)
  • Retrieve 1OSA in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1OSA from S2C, [Save to disk]
  • Re-refined 1osa structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
    • View 1OSA 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 1OSA
  • 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
  • 3D motif for 1OSA, from MSDmotif at EBI
  • Genome occurence of 1OSA's fold from GeneCensus
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1osa__, region [Jmol] [rasmolscript] [script source]
  • 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: [1osa] [1osa_A]
  • SWISS-PROT database: [P07463]
  • Domain organization of [CALM_PARTE] by SWISSPFAM
  • Domain found in 1OSA: [EFh ] by SMART
    • Other resources with information on 1OSA
  • Community annotation for 1OSA at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
    • Movements, Movies and Images
  • Domain movements in 1OSA from the Database of Macromolecular Movements.
  • Images from IMB Jena Image Library of Biological Macromolecules.

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