1NPR	Transcription	date	Jan 18, 2003
title	Crystal Structure Of Aquifex Aeolicus Nusg In C222(1)
authors	J.R.Knowlton, M.Bubunenko, M.Andrykovitch, W.Guo, K.M.Routzhan, D D.L.Court, X.Ji
compound		source
Molecule: Transcription Antitermination Protein Nusg Chain: A Engineered: Yes		Organism_scientific: Aquifex Aeolicus Organism_taxid: 63363 Gene: Nusg Or Aq_1931 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pkm702
symmetry	Space Group: C 2 2 21	R_factor 0.236 R_Free 0.273
crystal cell	length a length b length c angle alpha angle beta angle gamma 65.950 124.580 83.600 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.21 Å
related structures	by homologous chain: 1M1G, 1NZ9
Gene	AQ
Gene Ontology	Chain Function Process Component A
Primary reference	A spring-loaded state of NusG in its functional cycle is suggested by X-ray crystallography and supported by site-directed mutants., Knowlton JR, Bubunenko M, Andrykovitch M, Guo W, Routzahn KM, Waugh DS, Court DL, Ji X, Biochemistry 2003 Mar 4;42(8):2275-81. PMID:12600194

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (46 Kb) [Save to disk] Biological Unit Coordinates (1npr.pdb1.gz) 42 Kb CSU: Contacts of Structural Units for 1NPR Likely Quarternary Molecular Structure file(s) for 1NPR Structure Factors (177 Kb) Retrieve 1NPR in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1NPR from S2C, [Save to disk] Re-refined 1npr structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1NPR 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 1NPR

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 1NPR, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1npra2, region A:191-248 [Jmol] [rasmolscript] [script source]     - Domain d1npra1, region A:51-131 [Jmol] [rasmolscript] [script source]     - Domain d1npra3, region A:7-50,A:132-190 [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: [1npr] [1npr_A] SWISS-PROT database: [O67757] Domain organization of [NUSG_AQUAE] by SWISSPFAM Domains found in 1NPR: [KOW] [NGN ] by SMART

Other resources with information on 1NPR

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

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