1VA6	Ligase	date	Feb 12, 2004
title	Crystal Structure Of Gamma-Glutamylcysteine Synthetase From Escherichia Coli B Complexed With Transition-State Analogue
authors	T.Hibi, H.Nii, T.Nakatsu, H.Kato, J.Hiratake, J.Oda
compound		source
Molecule: Glutamate--Cysteine Ligase Chain: A, B Synonym: Gamma-Glutamylcysteine Synthetase, Gamma-Ecs, Gcs Ec: 6.3.2.2 Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Gsh-I Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Jm109 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pkgc20
symmetry	Space Group: P 1 21 1	R_factor 0.200 R_Free 0.225
crystal cell	length a length b length c angle alpha angle beta angle gamma 70.468 97.360 102.185 90.00 109.63 90.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand	ADP, MG, P2S, P6G	enzyme	Ligase E.C.6.3.2.2 BRENDA
related structures	by homologous chain: 1V4G
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structure of gamma-glutamylcysteine synthetase: insights into the mechanism of catalysis by a key enzyme for glutathione homeostasis., Hibi T, Nii H, Nakatsu T, Kimura A, Kato H, Hiratake J, Oda J, Proc Natl Acad Sci U S A 2004 Oct 19;101(42):15052-7. Epub 2004 Oct 11. PMID:15477603

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (177 Kb) [Save to disk] Biological Unit Coordinates (1va6.pdb1.gz) 87 Kb Biological Unit Coordinates (1va6.pdb2.gz) 87 Kb LPC: Ligand-Protein Contacts for 1VA6 CSU: Contacts of Structural Units for 1VA6 Likely Quarternary Molecular Structure file(s) for 1VA6 Structure Factors (1034 Kb) Retrieve 1VA6 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1VA6 from S2C, [Save to disk] Re-refined 1va6 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1VA6 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 1VA6

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 1VA6, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1va6a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1va6b_, region B [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1va6_B] [1va6] [1va6_A] SWISS-PROT database: [P0A6W9] Domain organization of [GSH1_ECOLI] by SWISSPFAM

Other resources with information on 1VA6

Community annotation for 1VA6 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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