1RXC	Transferase	date	Dec 18, 2003
title	E. Coli Uridine Phosphorylase: 5-Fluorouracil Ribose-1-Phosp Complex
authors	T.T.Caradoc-Davies, S.M.Cutfield, I.L.Lamont, J.F.Cutfield
compound		source
Molecule: Uridine Phosphorylase Chain: A, B, C, D, E, F, G, H, I, J, K, L Synonym: Urdpase, Upase Ec: 2.4.2.3 Engineered: Yes Other_details: This Structure Consists Of Twelve Monomers, Which Are In The Closed Conformation (Containing Substrate, Fluorouracil And Ribose-1-Phosphate) And Three Are In The O Conformation. One Of The Closed Active Sites (Chain J) Appe Contain The Products Of Nucleoside Synthesis, Namely 5-Fluo And Phosphate. The Dimer Consisting Of Chains G And H Is Th Dimer With Both Monomers In The Open Conformation With No C Potassium Binding.		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Udp Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pproex::Pvds
symmetry	Space Group: P 1 21 1	R_factor 0.150 R_Free 0.203
crystal cell	length a length b length c angle alpha angle beta angle gamma 90.188 191.701 91.909 90.00 118.50 90.00
method	X-Ray Diffraction	resolution	2.35 Å
ligand	5UD, K, PO4, R1P, URF	enzyme	Transferase E.C.2.4.2.3 BRENDA
related structures	by homologous chain: 1K3F, 1TGV
Gene Ontology	Chain Function Process Component F, A, J, K, E, B, H, C, D, I, G, L
Primary reference	Crystal structures of Escherichia coli uridine phosphorylase in two native and three complexed forms reveal basis of substrate specificity, induced conformational changes and influence of potassium., Caradoc-Davies TT, Cutfield SM, Lamont IL, Cutfield JF, J Mol Biol 2004 Mar 19;337(2):337-54. PMID:15003451

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (471 Kb) [Save to disk] Biological Unit Coordinates (1rxc.pdb1.gz) 234 Kb Biological Unit Coordinates (1rxc.pdb2.gz) 233 Kb LPC: Ligand-Protein Contacts for 1RXC CSU: Contacts of Structural Units for 1RXC Likely Quarternary Molecular Structure file(s) for 1RXC Structure Factors (836 Kb) Retrieve 1RXC in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1RXC from S2C, [Save to disk] Re-refined 1rxc structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1RXC 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 1RXC

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 1RXC, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1rxca_, region A [Jmol] [rasmolscript] [script source]     - Domain d1rxcb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1rxcc_, region C [Jmol] [rasmolscript] [script source]     - Domain d1rxcd_, region D [Jmol] [rasmolscript] [script source]     - Domain d1rxce_, region E [Jmol] [rasmolscript] [script source]     - Domain d1rxcf_, region F [Jmol] [rasmolscript] [script source]     - Domain d1rxcg_, region G [Jmol] [rasmolscript] [script source]     - Domain d1rxch_, region H [Jmol] [rasmolscript] [script source]     - Domain d1rxci_, region I [Jmol] [rasmolscript] [script source]     - Domain d1rxcj_, region J [Jmol] [rasmolscript] [script source]     - Domain d1rxck_, region K [Jmol] [rasmolscript] [script source]     - Domain d1rxcl_, region L [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: [1rxc_K] [1rxc_C] [1rxc_J] [1rxc_I] [1rxc_L] [1rxc] [1rxc_H] [1rxc_B] [1rxc_D] [1rxc_E] [1rxc_F] [1rxc_G] [1rxc_A] SWISS-PROT database: [P12758] Domain organization of [UDP_ECOLI] by SWISSPFAM

Other resources with information on 1RXC

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

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