2NUG	Hydrolase Rna	date	Nov 09, 2006
title	Crystal Structure Of Rnase III From Aquifex Aeolicus Complex Ds-Rna At 1.7-Angstrom Resolution
authors	J.H.Gan, G.Shaw, J.E.Tropea, D.S.Waugh, D.L.Court, X.Ji
compound		source
Molecule: 5'-R(Papapgpgpupcpapupupcpg)-3' Chain: C, D Engineered: Yes		Synthetic: Yes
Molecule: 5'-R(Papgpupgpgpcpcpupupgpc)-3' Chain: E, F Engineered: Yes		Synthetic: Yes
Molecule: Ribonuclease III Chain: A, B Synonym: Rnase III Ec: 3.1.26.3 Engineered: Yes		Organism_scientific: Aquifex Aeolicus Organism_taxid: 63363 Gene: Rnc Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3)-Ril Expression_system_vector_type: Plasmid Expression_system_plasmid: Phpk1409
symmetry	Space Group: P 21 21 2	R_factor 0.194 R_Free 0.220
crystal cell	length a length b length c angle alpha angle beta angle gamma 95.400 119.900 58.900 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.70 Å
ligand	MG	enzyme	Hydrolase E.C.3.1.26.3 BRENDA
Gene Ontology	Chain Function Process Component A, B nuclease activity endonuclease activity ribonuclease III activity
Primary reference	A stepwise model for double-stranded RNA processing by ribonuclease III., Gan J, Shaw G, Tropea JE, Waugh DS, Court DL, Ji X, Mol Microbiol. 2007 Dec 7;67(1):143-154. Epub 2007 Nov 27. PMID:18047582

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (109 Kb) [Save to disk] Biological Unit Coordinates (2nug.pdb1.gz) 102 Kb LPC: Ligand-Protein Contacts for 2NUG CSU: Contacts of Structural Units for 2NUG Likely Quarternary Molecular Structure file(s) for 2NUG Structure Factors (946 Kb) Retrieve 2NUG in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 2NUG from S2C, [Save to disk] Re-refined 2nug structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 2NUG 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 2NUG

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 2NUG, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [2nug_A] [2nug_B] [2nug] [2nug_C] [2nug_E] [2nug_F] [2nug_D] SWISS-PROT database: [O67082] Domain organization of [RNC_AQUAE] by SWISSPFAM Domains found in 2NUG: [DSRM] [RIBOc ] by SMART

Other resources with information on 2NUG

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

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