1SQ3	Metal Binding Protein	date	Mar 17, 2004
title	Crystal Structures Of A Novel Open Pore Ferritin From The Hyperthermophilic Archaeon Archaeoglobus Fulgidus.
authors	E.Johnson, D.Cascio, S.Michael, I.Schroder
compound		source
Molecule: Ferritin Chain: A, B, C, D, E, F, G, H, I, J, K, L Engineered: Yes		Organism_scientific: Archaeoglobus Fulgidus Organism_taxid: 224325 Strain: Dsm 4304 Gene: Ftn Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21 De3 Codon Plus Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet11a
symmetry	Space Group: C 2 2 21	R_factor 0.177 R_Free 0.218
crystal cell	length a length b length c angle alpha angle beta angle gamma 184.502 190.243 179.407 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.70 Å
ligand	FE, MSE	enzyme
related structures	by homologous chain: 1S3Q
Gene Ontology	Chain Function Process Component F, A, J, K, E, B, H, C, D, I, G, L
Primary reference	Crystal structures of a tetrahedral open pore ferritin from the hyperthermophilic archaeon Archaeoglobus fulgidus., Johnson E, Cascio D, Sawaya MR, Gingery M, Schroder I, Structure. 2005 Apr;13(4):637-48. PMID:15837202

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (347 Kb) [Save to disk] Biological Unit Coordinates (1sq3.pdb1.gz) 651 Kb LPC: Ligand-Protein Contacts for 1SQ3 CSU: Contacts of Structural Units for 1SQ3 Likely Quarternary Molecular Structure file(s) for 1SQ3 Structure Factors (1054 Kb) Retrieve 1SQ3 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1SQ3 from S2C, [Save to disk] Re-refined 1sq3 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1SQ3 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 1SQ3

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 1SQ3, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1sq3_L] [1sq3_H] [1sq3_D] [1sq3_F] [1sq3_I] [1sq3_K] [1sq3] [1sq3_B] [1sq3_G] [1sq3_E] [1sq3_J] [1sq3_A] [1sq3_C] SWISS-PROT database: [O29424] Domain organization of [O29424_ARCFU] by SWISSPFAM

Other resources with information on 1SQ3

Community annotation for 1SQ3 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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