2GQR	Ligase	date	Apr 21, 2006
title	Saicar Synthetase Complexed With Adp-Mg2+
authors	N.D.Ginder, R.B.Honzatko
compound		source
Molecule: Phosphoribosylaminoimidazole-Succinocarboxamide Synthase; Chain: A, B Synonym: Saicar Synthetase Ec: 6.3.2.6 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Purc Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 21 21 21	R_factor 0.204 R_Free 0.239
crystal cell	length a length b length c angle alpha angle beta angle gamma 59.290 67.160 148.780 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	ADP, MG, MSE	enzyme	Ligase E.C.6.3.2.6 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Nucleotide Complexes of Escherichia coli Phosphoribosylaminoimidazole Succinocarboxamide Synthetase., Ginder ND, Binkowski DJ, Fromm HJ, Honzatko RB, J Biol Chem. 2006 Jul 28;281(30):20680-8. Epub 2006 May 9. PMID:16687397

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (92 Kb) [Save to disk] Biological Unit Coordinates (2gqr.pdb1.gz) 86 Kb LPC: Ligand-Protein Contacts for 2GQR CSU: Contacts of Structural Units for 2GQR Likely Quarternary Molecular Structure file(s) for 2GQR Structure Factors (2072 Kb) Retrieve 2GQR in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2GQR from S2C, [Save to disk] Re-refined 2gqr structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2GQR 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 2GQR

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 2GQR, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2gqr_B] [2gqr_A] [2gqr] SWISS-PROT database: [P0A7D7] Domain organization of [PUR7_ECOLI] by SWISSPFAM

Other resources with information on 2GQR

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

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