4HN4	Lyase Lyase Inhibitor	date	Oct 18, 2012
title	Tryptophan Synthase In Complex With Alpha Aminoacrylate E(A- And The F9 Inhibitor In The Alpha Site
authors	E.Hilario, D.Niks, M.F.Dunn, L.J.Mueller, L.Fan
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, Trpa And Trpb Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Cb149 Expression_system_vector_type: Derivative Of Pbr322 Expression_system_plasmid: Peba-10
Molecule: Tryptophan Synthase Beta Chain Chain: B Ec: 4.2.1.20		Organism_scientific: Salmonella Enterica Subsp. Enterica Se Typhimurium; Organism_taxid: 90371
symmetry	Space Group: C 1 2 1	R_factor 0.148 R_Free 0.200
crystal cell	length a length b length c angle alpha angle beta angle gamma 183.970 59.720 67.400 90.00 94.69 90.00
method	X-Ray Diffraction	resolution	1.64 Å
ligand	0JO, BCN, CS, F9F, PEG	enzyme	Lyase E.C.4.2.1.20 BRENDA
Gene Ontology	Chain Function Process Component A B
Primary reference	Allostery and substrate channeling in the tryptophan synthase bienzyme complex: evidence for two subunit conformations and four quaternary states., Niks D, Hilario E, Dierkers A, Ngo H, Borchardt D, Neubauer TJ, Fan L, Mueller LJ, Dunn MF, Biochemistry. 2013 Sep 17;52(37):6396-411. doi: 10.1021/bi400795e. Epub 2013 Sep , 6. PMID:23952479

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (244 Kb) [Save to disk] Biological Unit Coordinates (4hn4.pdb1.gz) 469 Kb LPC: Ligand-Protein Contacts for 4HN4 CSU: Contacts of Structural Units for 4HN4 Structure Factors (1318 Kb) Retrieve 4HN4 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 4HN4 from S2C, [Save to disk] Re-refined 4hn4 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 4HN4 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 4HN4

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 4HN4, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [4hn4_B] [4hn4_A] [4hn4] SWISS-PROT database: Domain organization of by SWISSPFAM

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