1QQT	Ligase	date	Jun 08, 1999
title	Methionyl-Trna Synthetase From Escherichia Coli
authors	Y.Mechulam, E.Schmitt, L.Maveyraud, C.Zelwer, O.Nureki, S.Yokoyam M.Konno, S.Blanquet
compound		source
Molecule: Methionyl-Trna Synthetase Chain: A Fragment: Truncated Fragment, Residues 2-552 Ec: 6.1.1.10 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pbluescript
symmetry	Space Group: P 1 21 1	R_factor 0.170 R_Free 0.214
crystal cell	length a length b length c angle alpha angle beta angle gamma 78.150 46.300 87.700 90.00 109.06 90.00
method	X-Ray Diffraction	resolution	2.03 Å
ligand	ZN	enzyme	Ligase E.C.6.1.1.10 BRENDA
related structures	by homologous chain: 1PFY
Gene Ontology	Chain Function Process Component A
Primary reference	Crystal structure of Escherichia coli methionyl-tRNA synthetase highlights species-specific features., Mechulam Y, Schmitt E, Maveyraud L, Zelwer C, Nureki O, Yokoyama S, Konno M, Blanquet S, J Mol Biol 1999 Dec 17;294(5):1287-97. PMID:10600385

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (94 Kb) [Save to disk] Biological Unit Coordinates (1qqt.pdb1.gz) 91 Kb LPC: Ligand-Protein Contacts for 1QQT CSU: Contacts of Structural Units for 1QQT Likely Quarternary Molecular Structure file(s) for 1QQT Retrieve 1QQT in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1QQT from S2C, [Save to disk]

View 1QQT 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 1QQT

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1QQT, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1qqta3, region A:141-175 [Jmol] [rasmolscript] [script source]     - Domain d1qqta2, region A:3-140,A:176-388 [Jmol] [rasmolscript] [script source]     - Domain d1qqta1, region A:389-548 [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1qqt_A] [1qqt] SWISS-PROT database: [P00959] Domain organization of [SYM_ECOLI] by SWISSPFAM

Other resources with information on 1QQT

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

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