1K9K Signaling Protein date Oct 29, 2001
title Crystal Structure Of Calcium Bound Human S100a6
authors L.R.Otterbein, R.Dominguez
compound source
Molecule: S100a6
Chain: A, B
Synonym: Calcyclin, Cacy
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: S100a6
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21 (De3) Plys
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Paed4
symmetry Space Group: P 21 21 2
R_factor 0.185 R_Free 0.199
crystal
cell
length a length b length c angle alpha angle beta angle gamma
56.610 58.439 51.030 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.76 Å
ligand BME, CA enzyme
related structures by homologous chain: 1K96, 1K9P
Gene
Ontology
ChainFunctionProcessComponent
A, B
  • ion transmembrane transporte...


  • Primary referenceCrystal structures of S100A6 in the Ca(2+)-free and Ca(2+)-bound states: the calcium sensor mechanism of S100 proteins revealed at atomic resolution., Otterbein LR, Kordowska J, Witte-Hoffmann C, Wang CL, Dominguez R, Structure (Camb) 2002 Apr;10(4):557-67. PMID:11937060
    Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (36 Kb) [Save to disk]
  • Biological Unit Coordinates (1k9k.pdb1.gz) 32 Kb
  • Biological Unit Coordinates (1k9k.pdb2.gz) 62 Kb
  • LPC: Ligand-Protein Contacts for 1K9K
  • CSU: Contacts of Structural Units for 1K9K
  • Likely Quarternary Molecular Structure file(s) for 1K9K
  • Retrieve 1K9K in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1K9K from S2C, [Save to disk]
  • View 1K9K 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 1K9K
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 1K9K, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1k9ka_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1k9kb_, region B [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: [1k9k_B] [1k9k_A] [1k9k]
  • SWISS-PROT database: [P06703]
  • Domain organization of [S10A6_HUMAN] by SWISSPFAM
  • Domain found in 1K9K: [S_100 ] by SMART
  • Other resources with information on 1K9K
  • Community annotation for 1K9K at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Domain movements in 1K9K from the Database of Macromolecular Movements.
  • Images from IMB Jena Image Library of Biological Macromolecules.

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