3PR2	Lyase	date	Nov 29, 2010
title	Tryptophan Synthase Indoline Quinonoid Structure With F9 Inh Alpha Site
authors	J.Lai, D.Niks, Y.Wang, T.Domratcheva, T.R.M.Barends, F.Schwarz, R. D.W.Elliott, M.Q.Fatmi, C.A.Chang, I.Schlichting, M.F.Dunn, L.J.
compound		source
Molecule: Tryptophan Synthase Alpha Chain Chain: A Ec: 4.2.1.20 Engineered: Yes		Organism_scientific: Salmonella Enterica Subsp. Enterica Se Typhimurium; Organism_taxid: 90371 Gene: Stm1727, Trpa Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Cb149 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pstb7
Molecule: Tryptophan Synthase Beta Chain Chain: B Ec: 4.2.1.20 Engineered: Yes		Organism_scientific: Salmonella Enterica Subsp. Enterica Se Typhimurium; Organism_taxid: 90371 Gene: Stm1726, Trpb Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Cb149 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pstb7
symmetry	Space Group: C 1 2 1	R_factor 0.198 R_Free 0.227
crystal cell	length a length b length c angle alpha angle beta angle gamma 184.170 60.620 67.380 90.00 94.62 90.00
method	X-Ray Diffraction	resolution	1.85 Å
ligand	7MN, CS, F9F	enzyme	Lyase E.C.4.2.1.20 BRENDA
Gene Ontology	Chain Function Process Component A B
Primary reference	X-ray and NMR crystallography in an enzyme active site: the indoline quinonoid intermediate in tryptophan synthase., Lai J, Niks D, Wang Y, Domratcheva T, Barends TR, Schwarz F, Olsen RA, Elliott DW, Fatmi MQ, Chang CE, Schlichting I, Dunn MF, Mueller LJ, J Am Chem Soc. 2011 Jan 12;133(1):4-7. Epub 2010 Dec 10. PMID:21142052

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (110 Kb) [Save to disk] Biological Unit Coordinates (3pr2.pdb1.gz) 207 Kb LPC: Ligand-Protein Contacts for 3PR2 CSU: Contacts of Structural Units for 3PR2 Structure Factors (497 Kb) Retrieve 3PR2 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3PR2 from S2C, [Save to disk] Re-refined 3pr2 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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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 3PR2, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3pr2_B] [3pr2] [3pr2_A] SWISS-PROT database: Domain organization of by SWISSPFAM

Other resources with information on 3PR2

Community annotation for 3PR2 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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