1WQ4	Ligase	date	Sep 20, 2004
title	Escherichia Coli Tyrosyl-Trna Synthetase Mutant Complexed Wi Tyrosine
authors	T.Kobayashi, K.Sakamoto, O.Nureki, T.Takimura, K.Kamata, R.Sekine S.Nishimura, S.Yokoyama, Riken Structural Genomicsproteomics Initiative (Rsgi)
compound		source
Molecule: Tyrosyl-Trna Synthetase Chain: A Fragment: Residues 2-322 Synonym: Tyrosine--Trna Ligase, Tyrrs Ec: 6.1.1.1 Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Str. K12 Substr. Organism_taxid: 316407 Strain: W3110 Gene: Tyrs Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pgex-6p1
symmetry	Space Group: P 31 2 1	R_factor 0.187 R_Free 0.224
crystal cell	length a length b length c angle alpha angle beta angle gamma 82.913 82.913 92.987 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	TYR	enzyme	Ligase E.C.6.1.1.1 BRENDA
related structures	by homologous chain: 1WQ3, 1X8X
Gene Ontology	Chain Function Process Component A
Primary reference	Structural basis of nonnatural amino acid recognition by an engineered aminoacyl-tRNA synthetase for genetic code expansion., Kobayashi T, Sakamoto K, Takimura T, Sekine R, Vincent K, Kamata K, Nishimura S, Yokoyama S, Proc Natl Acad Sci U S A 2005 Feb 1;102(5):1366-71. Epub 2005 Jan 25. PMID:15671170

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (61 Kb) [Save to disk] Biological Unit Coordinates (1wq4.pdb1.gz) 112 Kb Biological Unit Coordinates (1wq4.pdb2.gz) 57 Kb LPC: Ligand-Protein Contacts for 1WQ4 CSU: Contacts of Structural Units for 1WQ4 Likely Quarternary Molecular Structure file(s) for 1WQ4 Structure Factors (285 Kb) Retrieve 1WQ4 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1WQ4 from S2C, [Save to disk] Re-refined 1wq4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1WQ4 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 1WQ4

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 1WQ4, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1wq4_A] [1wq4] SWISS-PROT database: [P0AGJ9] Domain organization of [SYY_ECOLI] by SWISSPFAM

Other resources with information on 1WQ4

Community annotation for 1WQ4 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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