1HK8	Oxidoreductase	date	Mar 06, 2003
title	Structural Basis For Allosteric Substrate Specificity Regula Class III Ribonucleotide Reductases: Nrdd In Complex With D
authors	K.M.Larsson, J.Andersson, B.M.Sjoeberg, P.Nordlund, D.T.Logan
compound		source
Molecule: Anaerobic Ribonucleotide-Triphosphate Reductase Chain: A Fragment: Active Site Subunit, Residues 1-605 Ec: 1.17.4.2 Engineered: Yes Mutation: Yes Other_details: Sequence Determination\: P.Young, M.Ohman, M		Organism_scientific: Bacteriophage T4 Organism_taxid: 10665 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Jm109(De3) Expression_system_plasmid: Pet29t4nrdd(G580a)
symmetry	Space Group: P 43 21 2	R_factor 0.204 R_Free 0.246
crystal cell	length a length b length c angle alpha angle beta angle gamma 98.163 98.163 246.131 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.45 Å
ligand	DGT, MN, ZN	enzyme	Oxidoreductase E.C.1.17.4.2 BRENDA
note	1HK8 supersedes 1H77
related structures	by homologous chain: 1H7B
Gene Ontology	Chain Function Process Component A
Primary reference	A metal-binding site in the catalytic subunit of anaerobic ribonucleotide reductase., Logan DT, Mulliez E, Larsson KM, Bodevin S, Atta M, Garnaud PE, Sjoberg BM, Fontecave M, Proc Natl Acad Sci U S A. 2003 Apr 1;100(7):3826-31. Epub 2003 Mar 24. PMID:12655046

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (100 Kb) [Save to disk] Biological Unit Coordinates (1hk8.pdb1.gz) 185 Kb LPC: Ligand-Protein Contacts for 1HK8 CSU: Contacts of Structural Units for 1HK8 Likely Quarternary Molecular Structure file(s) for 1HK8 Structure Factors (334 Kb) Retrieve 1HK8 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1HK8 from S2C, [Save to disk] Re-refined 1hk8 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1HK8 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 1HK8

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 1HK8, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1hk8a_, region A [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: [1hk8_A] [1hk8] SWISS-PROT database: [P07071] Domain organization of [NRDD_BPT4] by SWISSPFAM

Other resources with information on 1HK8

Community annotation for 1HK8 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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