2A6N	Lyase	date	Jul 03, 2005
title	Dihydrodipicolinate Synthase (E. Coli)- Mutant R138a
authors	R.C.Dobson, S.R.Devenish, L.A.Turner, V.R.Clifford, F.G.Pearce, G.B.Jameson, J.A.Gerrard
compound		source
Molecule: Dihydrodipicolinate Synthase Chain: A, B Synonym: Dhdps Ec: 4.2.1.52 Engineered: Yes Mutation: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Dapa Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 31 2 1	R_factor 0.163 R_Free 0.191
crystal cell	length a length b length c angle alpha angle beta angle gamma 120.989 120.989 111.302 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.94 Å
ligand	K	enzyme	Lyase E.C.4.2.1.52 BRENDA
Gene Ontology	Chain Function Process Component A, B
Primary reference	Role of Arginine 138 in the Catalysis and Regulation of Escherichia coli Dihydrodipicolinate Synthase., Dobson RC, Devenish SR, Turner LA, Clifford VR, Pearce FG, Jameson GB, Gerrard JA, Biochemistry 2005 Oct 4;44(39):13007-13. PMID:16185069

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (100 Kb) [Save to disk] Biological Unit Coordinates (2a6n.pdb1.gz) 189 Kb LPC: Ligand-Protein Contacts for 2A6N CSU: Contacts of Structural Units for 2A6N Likely Quarternary Molecular Structure file(s) for 2A6N Structure Factors (503 Kb) Retrieve 2A6N in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2A6N from S2C, [Save to disk] Re-refined 2a6n structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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Visual 3D analysis of 2A6N

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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 2A6N, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2a6n_A] [2a6n_B] [2a6n] SWISS-PROT database: [P0A6L2] Domain organization of [DAPA_ECOLI] by SWISSPFAM Domain found in 2A6N: [DHDPS ] by SMART

Other resources with information on 2A6N

Community annotation for 2A6N at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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