3IQO	Metal Binding Protein	date	Aug 20, 2009
title	1.5 Angstrom X-Ray Structure Of Bovine Ca(2+)-S100b
authors	T.H.Charpentier, D.J.Weber, E.A.Toth
compound		source
Molecule: Protein S100-B Chain: A, B Synonym: S100 Calcium-Binding Protein B, S-100 Protein Subu S-100 Protein Beta Chain; Engineered: Yes		Organism_scientific: Bos Taurus Organism_common: Bovine,Cow,Domestic Cattle,Domestic Cow Organism_taxid: 9913 Gene: S100b Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet11b
symmetry	Space Group: C 1 2 1	R_factor 0.200 R_Free 0.242
crystal cell	length a length b length c angle alpha angle beta angle gamma 89.637 35.044 58.113 90.00 92.62 90.00
method	X-Ray Diffraction	resolution	1.50 Å
ligand	CA	enzyme
Gene Ontology	Chain Function Process Component A, B kinase inhibitor activity
Primary reference	The Effects of CapZ Peptide (TRTK-12) Binding to S100B-Ca(2+) as Examined by NMR and X-ray Crystallography., Charpentier TH, Thompson LE, Liriano MA, Varney KM, Wilder PT, Pozharski E, Toth EA, Weber DJ, J Mol Biol. 2010 Jan 4. PMID:20053360

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (39 Kb) [Save to disk] Biological Unit Coordinates (3iqo.pdb1.gz) 31 Kb Biological Unit Coordinates (3iqo.pdb2.gz) 32 Kb LPC: Ligand-Protein Contacts for 3IQO CSU: Contacts of Structural Units for 3IQO Structure Factors (378 Kb) Retrieve 3IQO in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3IQO from S2C, [Save to disk] Re-refined 3iqo structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3IQO 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 3IQO

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 3IQO, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3iqo_B] [3iqo_A] [3iqo] SWISS-PROT database: Domain organization of by SWISSPFAM Domain found in 3IQO: [S_100 ] by SMART

Other resources with information on 3IQO

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

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