1G2N	Gene Regulation	date	Oct 20, 2000
title	Crystal Structure Of The Ligand Binding Domain Of The Ultras Protein Usp, The Ortholog Of Rxrs In Insects
authors	I.M.L.Billas, L.Moulinier, N.Rochel, D.Moras, Structural Proteom Europe (Spine)
compound		source
Molecule: Ultraspiracle Protein Chain: A Fragment: Ligand Binding Domain Engineered: Yes		Organism_scientific: Heliothis Virescens Organism_common: Tobacco Budworm Organism_taxid: 7102 Gene: Usp Locus Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet15b
symmetry	Space Group: P 43 2 2	R_factor 0.210 R_Free 0.244
crystal cell	length a length b length c angle alpha angle beta angle gamma 58.211 58.211 144.687 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.65 Å
ligand	EPH	enzyme
related structures	by homologous chain: 1R1K
Gene Ontology	Chain Function Process Component A steroid hormone receptor act...
Primary reference	Crystal structure of the ligand-binding domain of the ultraspiracle protein USP, the ortholog of retinoid X receptors in insects., Billas IM, Moulinier L, Rochel N, Moras D, J Biol Chem 2001 Mar 9;276(10):7465-74. PMID:11053444

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (52 Kb) [Save to disk] Biological Unit Coordinates (1g2n.pdb1.gz) 47 Kb LPC: Ligand-Protein Contacts for 1G2N CSU: Contacts of Structural Units for 1G2N Likely Quarternary Molecular Structure file(s) for 1G2N Structure Factors (297 Kb) Retrieve 1G2N in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1G2N from S2C, [Save to disk] Re-refined 1g2n structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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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 1G2N, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1g2na_, 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: [1g2n_A] [1g2n] SWISS-PROT database: [Q7SIF6] Domain organization of [Q7SIF6_HELVI] by SWISSPFAM Domain found in 1G2N: [HOLI ] by SMART

Other resources with information on 1G2N

Community annotation for 1G2N at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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