3POS Chaperone date Nov 23, 2010
title Crystal Structure Of The Globular Domain Of Human Calreticul
authors A.Chouquet, H.Paidassi, W.L.Ling, P.Frachet, G.Houen, G.J.Arlaud C.Gaboriaud
compound source
Molecule: Calreticulin
Chain: A, B, C
Fragment: Globular Domain, Unp Residues 18-204 And 302-368 With Gsg;
Synonym: Crp55, Calregulin, Endoplasmic Reticulum Resident 60, Erp60, Hacbp, Grp60;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: Calr, Crtc
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Rosetta 2 (De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Phfx-Crt
symmetry Space Group: P 21 21 21
R_factor 0.170 R_Free 0.205
length a length b length c angle alpha angle beta angle gamma
42.230 91.100 194.020 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.65 Å
ligand CA enzyme
A, C, B

Primary referenceX-ray structure of the human calreticulin globular domain reveals a Peptide-binding area and suggests a multi-molecular mechanism., Chouquet A, Paidassi H, Ling WL, Frachet P, Houen G, Arlaud GJ, Gaboriaud C, PLoS One. 2011 Mar 15;6(3):e17886. PMID:21423620
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (144 Kb) [Save to disk]
  • Biological Unit Coordinates (3pos.pdb1.gz) 48 Kb
  • Biological Unit Coordinates (3pos.pdb2.gz) 48 Kb
  • Biological Unit Coordinates (3pos.pdb3.gz) 48 Kb
  • LPC: Ligand-Protein Contacts for 3POS
  • CSU: Contacts of Structural Units for 3POS
  • Structure Factors (1871 Kb)
  • Retrieve 3POS in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3POS from S2C, [Save to disk]
  • Re-refined 3pos structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 3POS 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 3POS
  • 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 3POS, from MSDmotif at EBI
  • Fold representative 3pos from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3pos_A] [3pos_C] [3pos_B] [3pos]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Other resources with information on 3POS
  • Community annotation for 3POS 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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