1LI7	Ligase	date	Apr 17, 2002
title	Crystal Structure Of Cysteinyl-Trna Synthetase With Cysteine Bound
authors	K.J.Newberry, Y.M.Hou, J.J.Perona
compound		source
Molecule: Cysteinyl-Trna Synthetase Chain: A, B Synonym: Cysteine--Trna Ligase; Cysrs; Transfer Rna-Cys Syn Ec: 6.1.1.16 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid
symmetry	Space Group: P 41 21 2	R_factor 0.250 R_Free 0.290
crystal cell	length a length b length c angle alpha angle beta angle gamma 118.980 118.980 143.840 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.60 Å
ligand	CYS, ZN	enzyme	Ligase E.C.6.1.1.16 BRENDA
related structures	by homologous chain: 1LI5
Gene Ontology	Chain Function Process Component A, B
Primary reference	Structural origins of amino acid selection without editing by cysteinyl-tRNA synthetase., Newberry KJ, Hou YM, Perona JJ, EMBO J 2002 Jun 3;21(11):2778-87. PMID:12032090

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (122 Kb) [Save to disk] Biological Unit Coordinates (1li7.pdb1.gz) 61 Kb Biological Unit Coordinates (1li7.pdb2.gz) 57 Kb LPC: Ligand-Protein Contacts for 1LI7 CSU: Contacts of Structural Units for 1LI7 Likely Quarternary Molecular Structure file(s) for 1LI7 Structure Factors (276 Kb) Retrieve 1LI7 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1LI7 from S2C, [Save to disk] Re-refined 1li7 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1LI7 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 1LI7

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 1LI7, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1li7a2, region A:1-315 [Jmol] [rasmolscript] [script source]     - Domain d1li7a1, region A:316-402 [Jmol] [rasmolscript] [script source]     - Domain d1li7b2, region B:1-315 [Jmol] [rasmolscript] [script source]     - Domain d1li7b1, region B:316-402 [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: [1li7_A] [1li7] [1li7_B] SWISS-PROT database: [P21888] Domain organization of [SYC_ECOLI] by SWISSPFAM Domain found in 1LI7: [DALR_2 ] by SMART

Other resources with information on 1LI7

Community annotation for 1LI7 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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