1NNK	Membrane Protein	date	Jan 14, 2003
title	X-Ray Structure Of The Glur2 Ligand-Binding Core (S1s2j) In With (S)-Atpa At 1.85 A Resolution. Crystallization With Zi
authors	M.L.Lunn, A.Hogner, T.B.Stensbol, E.Gouaux, J.Egebjerg, J.S.Kast
compound		source
Molecule: Glutamate Receptor 2 Chain: A Fragment: Glur2-Flop Ligand-Binding Core (S1s2j) Synonym: Glur-2, Glur-B, Glutamate Receptor Ionotropic Ampa Engineered: Yes		Organism_scientific: Rattus Norvegicus Organism_common: Norway Rat Organism_taxid: 10116 Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet30b
symmetry	Space Group: P 21 21 2	R_factor 0.207 R_Free 0.245
crystal cell	length a length b length c angle alpha angle beta angle gamma 54.258 111.229 46.643 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.85 Å
ligand	CE2, CL, ZN BindingDB	enzyme
related structures	by homologous chain: 1M5B, 1NNP
Gene Ontology	Chain Function Process Component A
Primary reference	Three-dimensional structure of the ligand-binding core of GluR2 in complex with the agonist (S)-ATPA: implications for receptor subunit selectivity., Lunn ML, Hogner A, Stensbol TB, Gouaux E, Egebjerg J, Kastrup JS, J Med Chem 2003 Feb 27;46(5):872-5. PMID:12593667

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (52 Kb) [Save to disk] Biological Unit Coordinates (1nnk.pdb1.gz) 91 Kb LPC: Ligand-Protein Contacts for 1NNK CSU: Contacts of Structural Units for 1NNK Likely Quarternary Molecular Structure file(s) for 1NNK Structure Factors (186 Kb) Retrieve 1NNK in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1NNK from S2C, [Save to disk] Re-refined 1nnk structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1NNK 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 1NNK

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 1NNK, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1nnka_, 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: [1nnk] [1nnk_A] SWISS-PROT database: [P19491] Domain organization of [GRIA2_RAT] by SWISSPFAM Domains found in 1NNK: [Lig_chan-Glu_bd] [PBPb] [PBPe ] by SMART

Other resources with information on 1NNK

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

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