1RXY	Transferase	date	Dec 18, 2003
title	E. Coli Uridine Phosphorylase: Type-B Native
authors	T.T.Caradoc-Davies, S.M.Cutfield, I.L.Lamont, J.F.Cutfield
compound		source
Molecule: Uridine Phosphorylase Chain: A, B Synonym: Urdpase, Upase Ec: 2.4.2.3 Engineered: Yes Other_details: This Model Represents A New Native Form Of E Where The 163-185 Region Of Both Monomers Is Ordered. The D Containins A Bound Potassium Ion, Which Allows The Monomers More Tightly Together Than Those Of The Type-A Native Up Di		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: H 3	R_factor 0.128 R_Free 0.164
crystal cell	length a length b length c angle alpha angle beta angle gamma 152.928 152.928 50.864 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	1.70 Å
ligand	ACT, GOL, K, SO4	enzyme	Transferase E.C.2.4.2.3 BRENDA
related structures	by homologous chain: 1LX7
Gene Ontology	Chain Function Process Component A, B
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] (107 Kb) [Save to disk] Biological Unit Coordinates (1rxy.pdb1.gz) 250 Kb LPC: Ligand-Protein Contacts for 1RXY CSU: Contacts of Structural Units for 1RXY Likely Quarternary Molecular Structure file(s) for 1RXY Structure Factors (400 Kb) Retrieve 1RXY in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1RXY from S2C, [Save to disk] Re-refined 1rxy structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1RXY 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 1RXY

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1RXY, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1rxya_, region A [Jmol] [rasmolscript] [script source]     - Domain d1rxyb_, region B [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: [1rxy_A] [1rxy_B] [1rxy] SWISS-PROT database: [P12758] Domain organization of [UDP_ECOLI] by SWISSPFAM

Other resources with information on 1RXY

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

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