1X54	Ligase	date	May 15, 2005
title	Crystal Structure Of Asparaginyl-Trna Synthetase From Pyroco Horikoshii Complexed With Asparaginyl-Adenylate
authors	W.Iwasaki, S.Sekine, S.Yokoyama, Riken Structural Genomicsprot Initiative (Rsgi)
compound		source
Molecule: Asparaginyl-Trna Synthetase Chain: A Synonym: Asparagine-Trna Ligase, Asnrs Ec: 6.1.1.22 Engineered: Yes		Organism_scientific: Pyrococcus Horikoshii Organism_taxid: 53953 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet11a
symmetry	Space Group: C 1 2 1	R_factor 0.168 R_Free 0.192
crystal cell	length a length b length c angle alpha angle beta angle gamma 126.071 68.221 75.706 90.00 117.18 90.00
method	X-Ray Diffraction	resolution	1.45 Å
ligand	4AD, MG, MPD	enzyme	Ligase E.C.6.1.1.22 BRENDA
Gene Ontology	Chain Function Process Component A
Primary reference	Structural Basis of the Water-assisted Asparagine Recognition by Asparaginyl-tRNA Synthetase., Iwasaki W, Sekine S, Kuroishi C, Kuramitsu S, Shirouzu M, Yokoyama S, J Mol Biol. 2006 Jul 7;360(2):329-42. Epub 2006 May 15. PMID:16753178

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (157 Kb) [Save to disk] Biological Unit Coordinates (1x54.pdb1.gz) 300 Kb LPC: Ligand-Protein Contacts for 1X54 CSU: Contacts of Structural Units for 1X54 Likely Quarternary Molecular Structure file(s) for 1X54 Structure Factors (1411 Kb) Retrieve 1X54 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1X54 from S2C, [Save to disk] Re-refined 1x54 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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Visual 3D analysis of 1X54

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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 1X54, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1x54] [1x54_A] SWISS-PROT database: [O57980] Domain organization of [SYN_PYRHO] by SWISSPFAM

Other resources with information on 1X54

Community annotation for 1X54 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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