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
crystal cell	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 Diffraction	resolution	1.65 Å
ligand	CA	enzyme
Gene Ontology	Chain Function Process Component A, C, B
Primary reference	X-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

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 3POS, from MSDmotif at EBI

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)

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