1QQ2	Oxidoreductase	date	Jun 10, 1999
title	Crystal Structure Of A Mammalian 2-Cys Peroxiredoxin, Hbp23.
authors	S.Hirotsu, Y.Abe, K.Okada, N.Nagahara, H.Hori, T.Nishino, T.Hakosh
compound		source
Molecule: Thioredoxin Peroxidase 2 Chain: A, B Synonym: Heme-Binding Protein 23 Kd, Hbp23 Engineered: Yes Mutation: Yes Other_details: Hbp23 In Oxidative Form Revealed A Unique Di Structure In Which The Active Site Cystein Forms A Disulfid With Other Cystein From Another Subunit.		Organism_scientific: Rattus Norvegicus Organism_common: Norway Rat Organism_taxid: 10116 Organ: Liver Cellular_location: Cytoplasm Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet3c
symmetry	Space Group: P 41 21 2	R_factor 0.216 R_Free 0.268
crystal cell	length a length b length c angle alpha angle beta angle gamma 73.900 73.900 211.300 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.60 Å
ligand	CL	enzyme
related structures	by homologous chain: 1QMV, 1UUL
Gene Ontology	Chain Function Process Component A, B
Primary reference	Crystal structure of a multifunctional 2-Cys peroxiredoxin heme-binding protein 23 kDa/proliferation-associated gene product., Hirotsu S, Abe Y, Okada K, Nagahara N, Hori H, Nishino T, Hakoshima T, Proc Natl Acad Sci U S A 1999 Oct 26;96(22):12333-8. PMID:10535922

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (60 Kb) [Save to disk] Biological Unit Coordinates (1qq2.pdb1.gz) 55 Kb LPC: Ligand-Protein Contacts for 1QQ2 CSU: Contacts of Structural Units for 1QQ2 Likely Quarternary Molecular Structure file(s) for 1QQ2 Structure Factors (206 Kb) Retrieve 1QQ2 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1QQ2 from S2C, [Save to disk] Re-refined 1qq2 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1QQ2 in 3D

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Visual 3D analysis of 1QQ2

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 1QQ2, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1qq2a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1qq2b_, 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: [1qq2_B] [1qq2] [1qq2_A] SWISS-PROT database: [Q63716] Domain organization of [PRDX1_RAT] by SWISSPFAM

Other resources with information on 1QQ2

Community annotation for 1QQ2 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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