1R6T	Ligase	date	Oct 16, 2003
title	Crystal Structure Of Human Tryptophanyl-Trna Synthetase
authors	X.L.Yang, F.J.Otero, R.J.Skene, D.E.Mcree, L.Ribas De Pouplana, P.Schimmel
compound		source
Molecule: Tryptophanyl-Trna Synthetase Chain: A, B Synonym: Tryptophan--Trna Ligase, Trprs, Ifp53, Hwrs Ec: 6.1.1.2 Engineered: Yes Mutation: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: Wars Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: B834(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet20b+
symmetry	Space Group: C 1 2 1	R_factor 0.208 R_Free 0.239
crystal cell	length a length b length c angle alpha angle beta angle gamma 152.146 95.713 98.506 90.00 91.62 90.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand	GOL, MSE, TYM	enzyme	Ligase E.C.6.1.1.2 BRENDA
related structures	by homologous chain: 1R6U, 1ULH
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structures that suggest late development of genetic code components for differentiating aromatic side chains., Yang XL, Otero FJ, Skene RJ, McRee DE, Schimmel P, de Pouplana LR, Proc Natl Acad Sci U S A 2003 Dec 23;100(26):15376-80. Epub 2003 Dec 11. PMID:14671330

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (143 Kb) [Save to disk] Biological Unit Coordinates (1r6t.pdb1.gz) 133 Kb LPC: Ligand-Protein Contacts for 1R6T CSU: Contacts of Structural Units for 1R6T Likely Quarternary Molecular Structure file(s) for 1R6T Structure Factors (2033 Kb) Retrieve 1R6T in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1R6T from S2C, [Save to disk] Re-refined 1r6t structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1R6T 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 1R6T

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 1R6T, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1r6ta1, region A:7-60 [Jmol] [rasmolscript] [script source]     - Domain d1r6ta2, region A:82-467 [Jmol] [rasmolscript] [script source]     - Domain d1r6tb_, region B [Jmol] [rasmolscript] [script source]

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1r6t_B] [1r6t] [1r6t_A] SWISS-PROT database: [P23381] Domain organization of [SYWC_HUMAN] by SWISSPFAM Domain found in 1R6T: [WHEP-TRS ] by SMART

Other resources with information on 1R6T

Community annotation for 1R6T at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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