3EAM	Membrane Protein, Transport Protein	date	Aug 26, 2008
title	An Open-Pore Structure Of A Bacterial Pentameric Ligand-Gate Channel
authors	N.Bocquet, H.Nury, M.Baaden, C.Le Poupon, J.P.Changeux, M.Delarue P.J.Corringer
compound		source
Molecule: Glr4197 Protein Chain: A, B, C, D, E Fragment: Unp Residues 43-359 Engineered: Yes		Organism_scientific: Gloeobacter Violaceus Organism_taxid: 33072 Gene: Glr4197 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: C43 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet20
symmetry	Space Group: C 1 2 1	R_factor 0.199 R_Free 0.231
crystal cell	length a length b length c angle alpha angle beta angle gamma 183.320 133.640 160.180 90.00 102.94 90.00
method	X-Ray Diffraction	resolution	2.90 Å
ligand	LMT, PC1	enzyme
Gene Ontology	Chain Function Process Component A, D, C, E, B
Primary reference	X-ray structure of a pentameric ligand-gated ion channel in an apparently open conformation., Bocquet N, Nury H, Baaden M, Le Poupon C, Changeux JP, Delarue M, Corringer PJ, Nature. 2008 Nov 5. PMID:18987633

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (278 Kb) [Save to disk] Biological Unit Coordinates (3eam.pdb1.gz) 266 Kb LPC: Ligand-Protein Contacts for 3EAM CSU: Contacts of Structural Units for 3EAM Likely Quarternary Molecular Structure file(s) for 3EAM Structure Factors (1320 Kb) Retrieve 3EAM in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3EAM from S2C, [Save to disk] Re-refined 3eam structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3EAM 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 3EAM

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 3EAM, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3eam_E] [3eam] [3eam_D] [3eam_B] [3eam_A] [3eam_C] SWISS-PROT database: [Q7NDN8] Belongs to the neurotransmitter receptor, cys loop, ligand-gated ion channel (lic) family according to TCDB. Domain organization of [Q7NDN8_GLOVI] by SWISSPFAM

Other resources with information on 3EAM

Community annotation for 3EAM at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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