3EC3	Isomerase	date	Aug 28, 2008
title	Crystal Structure Of The Bb Fragment Of Erp72
authors	G.Kozlov, K.Gehring
compound		source
Molecule: Protein Disulfide-Isomerase A4 Chain: A, B Fragment: Unp Residues 283-523 Synonym: Protein Erp-72, Erp72, Calcium-Binding Protein 2, Ec: 5.3.4.1 Engineered: Yes Mutation: Yes		Organism_scientific: Rattus Norvegicus Organism_common: Brown Rat,Rat,Rats Organism_taxid: 10116 Gene: Pdia4, Cabp2, Erp70 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pgex-6p-1
symmetry	Space Group: P 31	R_factor 0.188 R_Free 0.236
crystal cell	length a length b length c angle alpha angle beta angle gamma 62.171 62.171 135.004 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.92 Å
ligand	MSE	enzyme	Isomerase E.C.5.3.4.1 BRENDA
Primary reference	Structure of the Noncatalytic Domains and Global Fold of the Protein Disulfide Isomerase ERp72., Kozlov G, Maattanen P, Schrag JD, Hura GL, Gabrielli L, Cygler M, Thomas DY, Gehring K, Structure. 2009 May 13;17(5):651-9. PMID:19446521

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (89 Kb) [Save to disk] Biological Unit Coordinates (3ec3.pdb1.gz) 41 Kb Biological Unit Coordinates (3ec3.pdb2.gz) 41 Kb LPC: Ligand-Protein Contacts for 3EC3 CSU: Contacts of Structural Units for 3EC3 Likely Quarternary Molecular Structure file(s) for 3EC3 Structure Factors (652 Kb) Retrieve 3EC3 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3EC3 from S2C, [Save to disk] Re-refined 3ec3 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3EC3 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 3EC3

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 3EC3, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3ec3_B] [3ec3_A] [3ec3] SWISS-PROT database: [P38659] Domain organization of [PDIA4_RAT] by SWISSPFAM

Other resources with information on 3EC3

Community annotation for 3EC3 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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