3R1R	Complex (Oxidoreductase Peptide)	date	Jul 21, 1997
title	Ribonucleotide Reductase R1 Protein With Amppnp Occupying The Activity Site From Escherichia Coli
authors	M.Eriksson, H.Eklund
compound		source
Molecule: Ribonucleotide Reductase R1 Protein Chain: A, B, C Ec: 1.17.4.1 Engineered: Yes		Organism_scientific: Escherichia Coli Organism_taxid: 562 Gene: Nrda Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Ribonucleotide Reductase R2 Protein Chain: D, E, F, P Fragment: C-Terminal Portion, 20 Residues Engineered: Yes
symmetry	Space Group: H 3 2	R_factor R_Free 0.287
crystal cell	length a length b length c angle alpha angle beta angle gamma 224.610 224.610 336.630 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	3.00 Å
ligand	ATP	enzyme	Oxidoreductase E.C.1.17.4.1 BRENDA
related structures	by homologous chain: 2R1R
Gene Ontology	Chain Function Process Component A, C, B
Primary reference	Binding of allosteric effectors to ribonucleotide reductase protein R1: reduction of active-site cysteines promotes substrate binding., Eriksson M, Uhlin U, Ramaswamy S, Ekberg M, Regnstrom K, Sjoberg BM, Eklund H, Structure 1997 Aug 15;5(8):1077-92. PMID:9309223

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (367 Kb) [Save to disk] Biological Unit Coordinates (3r1r.pdb1.gz) 125 Kb Biological Unit Coordinates (3r1r.pdb2.gz) 124 Kb Biological Unit Coordinates (3r1r.pdb3.gz) 123 Kb Biological Unit Coordinates (3r1r.pdb4.gz) 717 Kb Biological Unit Coordinates (3r1r.pdb5.gz) 712 Kb Biological Unit Coordinates (3r1r.pdb6.gz) 715 Kb Biological Unit Coordinates (3r1r.pdb7.gz) 704 Kb Biological Unit Coordinates (3r1r.pdb8.gz) 702 Kb Biological Unit Coordinates (3r1r.pdb9.gz) 124 Kb LPC: Ligand-Protein Contacts for 3R1R CSU: Contacts of Structural Units for 3R1R Likely Quarternary Molecular Structure file(s) for 3R1R Structure Factors (691 Kb) Retrieve 3R1R in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3R1R from S2C, [Save to disk] Re-refined 3r1r structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3R1R 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 3R1R

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 3R1R, from MSDmotif at EBI Genome occurence of 3R1R's fold from GeneCensus Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d3r1ra2, region A:222-737 [Jmol] [rasmolscript] [script source]     - Domain d3r1ra1, region A:5-221 [Jmol] [rasmolscript] [script source]     - Domain d3r1rb2, region B:222-737 [Jmol] [rasmolscript] [script source]     - Domain d3r1rb1, region B:5-221 [Jmol] [rasmolscript] [script source]     - Domain d3r1rc2, region C:222-737 [Jmol] [rasmolscript] [script source]     - Domain d3r1rc1, region C:5-221 [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: [3r1r_E] [3r1r_P] [3r1r_B] [3r1r_C] [3r1r_F] [3r1r] [3r1r_D] [3r1r_A] SWISS-PROT database: [P00452] [P69924] Domain organization of [RIR1_ECOLI] [RIR2_ECOLI] by SWISSPFAM

Other resources with information on 3R1R

Community annotation for 3R1R at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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