2XAP	Oxidoreductase	date	Mar 31, 2010
title	Ribonucleotide Reductase Y731no2y Modified R1 Subunit Of E. A Resolution
authors	K.Yokoyama, U.Uhlin, J.Stubbe
compound		source
Molecule: Ribonucleoside-Diphosphate Reductase 1 Subunit Al Chain: A, B, C Fragment: Residues 1-761 Synonym: Ribonucleoside-Diphosphate Reductase 1 R1 Subunit, Ribonucleotide Reductase 1, Protein B1, Ribonucleotide Redu Subunit; Ec: 1.17.4.1 Engineered: Yes Other_details: Site Specific Incorporation Of 3-Nitrotyrosi Position 731;		Organism_scientific: Escherichia Coli Organism_taxid: 83333 Strain: K-12 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Top10 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pbadmychisa
Molecule: Ribonucleoside-Diphosphate Reductase 1 Subunit Be Chain: D, E, F, P Fragment: Ribonucleotide Reductase R2-Peptide, Residues 357 Synonym: Ribonucleotide Reductase 1, Protein B2, Protein R2 Engineered: Yes		Synthetic: Yes Organism_scientific: Escherichia Coli Organism_taxid: 562
symmetry	Space Group: H 3 2	R_factor 0.196 R_Free 0.230
crystal cell	length a length b length c angle alpha angle beta angle gamma 223.979 223.979 336.027 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.10 Å
ligand	NIY	enzyme	Oxidoreductase E.C.1.17.4.1 BRENDA
note	2XAP supersedes 2X1Y
Gene Ontology	Chain Function Process Component A, C, B
Primary reference	Site-Specific Incorporation of 3-Nitrotyrosine as a Probe of pK(a) Perturbation of Redox-Active Tyrosines in Ribonucleotide Reductase., Yokoyama K, Uhlin U, Stubbe J, J Am Chem Soc. 2010 Jun 2. PMID:20518462

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (381 Kb) [Save to disk] Biological Unit Coordinates (2xap.pdb1.gz) 739 Kb Biological Unit Coordinates (2xap.pdb2.gz) 752 Kb Biological Unit Coordinates (2xap.pdb3.gz) 5 Kb LPC: Ligand-Protein Contacts for 2XAP CSU: Contacts of Structural Units for 2XAP Structure Factors (4900 Kb) Retrieve 2XAP in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2XAP from S2C, [Save to disk] Re-refined 2xap structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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Visual 3D analysis of 2XAP

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 2XAP, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2xap_B] [2xap_F] [2xap_C] [2xap_D] [2xap_P] [2xap] [2xap_E] [2xap_A] SWISS-PROT database: Domain organization of by SWISSPFAM

Other resources with information on 2XAP

Community annotation for 2XAP at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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