1PAQ	Translation	date	May 14, 2003
title	Crystal Structure Of The Catalytic Fragment Of Eukaryotic Initiation Factor 2b Epsilon
authors	T.Boesen, G.R.Andersen, G.D.Pavitt
compound		source
Molecule: Translation Initiation Factor Eif-2b Epsilon Subunit; Chain: A Fragment: Catalytic Domain, Residues (524-712) Synonym: Eif-2b Gdp-Gtp Exchange Factor, Guanine Nucleotide Exchange Factor Subunit Gcd6, Gcd Complex Subunit Gcd6; Engineered: Yes		Organism_scientific: Saccharomyces Cerevisiae Organism_common: Baker'S Yeast Organism_taxid: 4932 Gene: Gcd6 Or Tif225 Or Ydr211w Or Yd8142.12 Or Yd8142b.03 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3)Rosetta Expression_system_vector_type: Plasmid Expression_system_vector: Pet24d Expression_system_plasmid: Peteif2be-Ctd
symmetry	Space Group: I 4 2 2	R_factor 0.243 R_Free 0.272
crystal cell	length a length b length c angle alpha angle beta angle gamma 106.340 106.340 91.710 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.30 Å
ligand	MSE	enzyme
Primary reference	Structure of the catalytic fragment of translation initiation factor 2B and identification of a critically important catalytic residue., Boesen T, Mohammad SS, Pavitt GD, Andersen GR, J Biol Chem 2004 Mar 12;279(11):10584-92. Epub 2003 Dec 17. PMID:14681227

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (33 Kb) [Save to disk] Biological Unit Coordinates (1paq.pdb1.gz) 29 Kb LPC: Ligand-Protein Contacts for 1PAQ CSU: Contacts of Structural Units for 1PAQ Likely Quarternary Molecular Structure file(s) for 1PAQ Structure Factors (208 Kb) Retrieve 1PAQ in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1PAQ from S2C, [Save to disk] Re-refined 1paq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1PAQ 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 1PAQ

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 1PAQ, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1paqa_, region A [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1paq] [1paq_A] SWISS-PROT database: [P32501] Domain organization of [EI2BE_YEAST] by SWISSPFAM Domain found in 1PAQ: [eIF5C ] by SMART

Other resources with information on 1PAQ

Community annotation for 1PAQ at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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