1B4E	Lyase	date	Dec 19, 1998
title	X-Ray Structure Of 5-Aminolevulinic Acid Dehydratase Complex The Inhibitor Levulinic Acid
authors	P.T.Erskine, J.B.Cooper, G.Lewis, P.Spencer, S.P.Wood, P.M.Shooli Jordan
compound		source
Molecule: Protein (5-Aminolevulinic Acid Dehydratase) Chain: A Synonym: Alad Ec: 4.2.1.24 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Hem2 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: I 4 2 2	R_factor 0.188 R_Free 0.255
crystal cell	length a length b length c angle alpha angle beta angle gamma 126.700 126.700 141.600 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.00 Å
ligand	GOL, SHF, SO4, ZN	enzyme	Lyase E.C.4.2.1.24 BRENDA
related structures	by homologous chain: 1L6Y
Gene Ontology	Chain Function Process Component A
Primary reference	X-ray structure of 5-aminolevulinic acid dehydratase from Escherichia coli complexed with the inhibitor levulinic acid at 2.0 A resolution., Erskine PT, Norton E, Cooper JB, Lambert R, Coker A, Lewis G, Spencer P, Sarwar M, Wood SP, Warren MJ, Shoolingin-Jordan PM, Biochemistry 1999 Apr 6;38(14):4266-76. PMID:10194344

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (63 Kb) [Save to disk] Biological Unit Coordinates (1b4e.pdb1.gz) 445 Kb LPC: Ligand-Protein Contacts for 1B4E CSU: Contacts of Structural Units for 1B4E Likely Quarternary Molecular Structure file(s) for 1B4E Retrieve 1B4E in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1B4E from S2C, [Save to disk]

View 1B4E 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 1B4E

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1B4E, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1b4ea_, region A [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1b4e_A] [1b4e] SWISS-PROT database: [P0ACB2] Domain organization of [HEM2_ECOLI] by SWISSPFAM Domain found in 1B4E: [ALAD ] by SMART

Other resources with information on 1B4E

Community annotation for 1B4E at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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