2CLM	Lyase	date	Apr 28, 2006
title	Tryptophan Synthase (External Aldimine State) In Complex With N-(4'-Trifluoromethoxybenzoyl)-2-Amino-1- Ethylphosphate (F6f)
authors	H.Ngo, N.Kimmich, R.Harris, D.Niks, L.Blumenstein, V.Kulik, T.R.Barends, I.Schlichting, M.F.Dunn
compound		source
Molecule: Tryptophan Synthase Alpha Chain Chain: A Ec: 4.2.1.20 Engineered: Yes		Organism_scientific: Salmonella Typhimurium Organism_taxid: 602 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Cb149 Expression_system_plasmid: Pstb7
Molecule: Tryptophan Synthase Beta Chain Chain: B Ec: 4.2.1.20 Engineered: Yes		Organism_scientific: Salmonella Typhimurium Organism_taxid: 602 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Cb149 Expression_system_plasmid: Pstb7
symmetry	Space Group: C 1 2 1	R_factor 0.218 R_Free 0.239
crystal cell	length a length b length c angle alpha angle beta angle gamma 182.510 59.540 67.710 90.00 94.84 90.00
method	X-Ray Diffraction	resolution	1.51 Å
ligand	F6F, NA, PLS	enzyme	Lyase E.C.4.2.1.20 BRENDA
Gene Ontology	Chain Function Process Component A B
Primary reference	Allosteric regulation of substrate channeling in tryptophan synthase: modulation of the L-serine reaction in stage I of the beta-reaction by alpha-site ligands., Ngo H, Kimmich N, Harris R, Niks D, Blumenstein L, Kulik V, Barends TR, Schlichting I, Dunn MF, Biochemistry. 2007 Jul 3;46(26):7740-53. Epub 2007 Jun 9. PMID:17559232

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (118 Kb) [Save to disk] Biological Unit Coordinates (2clm.pdb1.gz) 221 Kb LPC: Ligand-Protein Contacts for 2CLM CSU: Contacts of Structural Units for 2CLM Likely Quarternary Molecular Structure file(s) for 2CLM Structure Factors (923 Kb) Retrieve 2CLM in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2CLM from S2C, [Save to disk] Re-refined 2clm structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2CLM 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 2CLM

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 2CLM, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2clm_B] [2clm_A] [2clm] SWISS-PROT database: [P00929] [P0A2K1] Domain organization of [TRPA_SALTY] [TRPB_SALTY] by SWISSPFAM

Other resources with information on 2CLM

Community annotation for 2CLM at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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