1B4U	Dioxygenase	date	Dec 29, 1998
title	Protocatechuate 4,5-Dioxygenase (Ligab) In Complex With Protocatechuate (Pca)
authors	K.Sugimoto, T.Senda, Y.Mitsui
compound		source
Molecule: Protocatechuate 4,5-Dioxygenase Chain: A, C Fragment: Chain A, C, Alpha Chain, Chain B, D, Beta Chain Synonym: Liga, Ligb Ec: 1.13.11.8 Engineered: Yes		Organism_scientific: Sphingomonas Paucimobilis Organism_taxid: 13689 Strain: Syk-6 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Protocatechuate 4,5-Dioxygenase Chain: B, D Fragment: Chain A, C, Alpha Chain, Chain B, D, Beta Chain Synonym: Liga, Ligb Ec: 1.13.11.8 Engineered: Yes		Organism_scientific: Sphingomonas Paucimobilis Organism_taxid: 13689 Strain: Syk-6 Expression_system: Escherichia Coli Expression_system_taxid: 562
symmetry	Space Group: P 1 21 1	R_factor 0.161 R_Free 0.220
crystal cell	length a length b length c angle alpha angle beta angle gamma 65.400 66.500 119.800 90.00 92.50 90.00
method	X-Ray Diffraction	resolution	2.20 Å
ligand	DHB, FE	enzyme	Oxidoreductase E.C.1.13.11.8 BRENDA
related structures	by homologous chain: 1BOU
Gene Ontology	Chain Function Process Component A, C D, B
Primary reference	Crystal structure of an aromatic ring opening dioxygenase LigAB, a protocatechuate 4,5-dioxygenase, under aerobic conditions., Sugimoto K, Senda T, Aoshima H, Masai E, Fukuda M, Mitsui Y, Structure Fold Des 1999 Aug 15;7(8):953-65. PMID:10467151

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (144 Kb) [Save to disk] Biological Unit Coordinates (1b4u.pdb1.gz) 139 Kb LPC: Ligand-Protein Contacts for 1B4U CSU: Contacts of Structural Units for 1B4U Likely Quarternary Molecular Structure file(s) for 1B4U Retrieve 1B4U in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1B4U from S2C, [Save to disk]

View 1B4U in 3D

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Visual 3D analysis of 1B4U

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1B4U, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1b4ua_, region A [Jmol] [rasmolscript] [script source]     - Domain d1b4ub_, region B [Jmol] [rasmolscript] [script source]     - Domain d1b4uc_, region C [Jmol] [rasmolscript] [script source]     - Domain d1b4ud_, region D [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: [1b4u_B] [1b4u_C] [1b4u_A] [1b4u] [1b4u_D] SWISS-PROT database: [P22635] [P22636] Domain organization of [PCYA_PSEPA] [PCYB_PSEPA] by SWISSPFAM

Other resources with information on 1B4U

Community annotation for 1B4U at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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