2IOC	Hydrolase	date	Oct 10, 2006
title	The Crystal Structure Of Trex1 Explains The 3' Nucleotide Sp And Reveals A Polyproline II Helix For Protein Partenring
authors	U.De Silva, T.Hollis
compound		source
Molecule: Three Prime Repair Exonuclease 1 Chain: B, A Fragment: N-Terminal Fragment, Residues 1-242 Synonym: 3'-5' Exonuclease Trex1 Ec: 3.1.11.2 Engineered: Yes		Organism_scientific: Mus Musculus Organism_common: House Mouse Organism_taxid: 10090 Gene: Trex1 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet28
symmetry	Space Group: H 3	R_factor 0.198 R_Free 0.243
crystal cell	length a length b length c angle alpha angle beta angle gamma 119.700 119.700 83.300 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand	D5M, MN, MSE	enzyme	Hydrolase E.C.3.1.11.2 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	The Crystal Structure of TREX1 Explains the 3' Nucleotide Specificity and Reveals a Polyproline II Helix for Protein Partnering., de Silva U, Choudhury S, Bailey SL, Harvey S, Perrino FW, Hollis T, J Biol Chem. 2007 Apr 6;282(14):10537-43. Epub 2007 Feb 9. PMID:17293595

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (80 Kb) [Save to disk] Biological Unit Coordinates (2ioc.pdb1.gz) 75 Kb LPC: Ligand-Protein Contacts for 2IOC CSU: Contacts of Structural Units for 2IOC Likely Quarternary Molecular Structure file(s) for 2IOC Structure Factors (226 Kb) Retrieve 2IOC in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2IOC from S2C, [Save to disk] Re-refined 2ioc structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2IOC 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 2IOC

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 2IOC, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2ioc_B] [2ioc_A] [2ioc] SWISS-PROT database: [Q91XB0] Domain organization of [TREX1_MOUSE] by SWISSPFAM Domain found in 2IOC: [EXOIII ] by SMART

Other resources with information on 2IOC

Community annotation for 2IOC at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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