3NSI	Metal Binding Protein	date	Jul 01, 2010
title	Crystal Structure Of The Post-Refolded S100a3 Protein Expres Insect Cell
authors	M.Unno, H.Takahara, K.Kizawa
compound		source
Molecule: Protein S100-A3 Chain: A, B Synonym: S100 Calcium-Binding Protein A3, Protein S-100e Engineered: Yes		Organism_scientific: Homo Sapiens Organism_common: Human Organism_taxid: 9606 Gene: S100a3, S100e Expression_system: Spodoptera Frugiperda Expression_system_taxid: 7108 Expression_system_cell_line: Iplb-Sf21 Expression_system_vector_type: Baculovirus
symmetry	Space Group: P 31	R_factor 0.203 R_Free 0.236
crystal cell	length a length b length c angle alpha angle beta angle gamma 58.680 58.680 45.763 90.00 90.00 120.00
method	X-Ray Diffraction	resolution	2.15 Å
Gene Ontology	Chain Function Process Component A, B
Primary reference	Refined crystal structures of human Ca(2+)/Zn(2+)-binding S100A3 protein characterized by two disulfide bridges., Unno M, Kawasaki T, Takahara H, Heizmann CW, Kizawa K, J Mol Biol. 2011 May 6;408(3):477-90. Epub 2011 Mar 4. PMID:21377473

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (69 Kb) [Save to disk] Biological Unit Coordinates (3nsi.pdb1.gz) 62 Kb CSU: Contacts of Structural Units for 3NSI Structure Factors (151 Kb) Retrieve 3NSI in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3NSI from S2C, [Save to disk] Re-refined 3nsi structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 3NSI 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 3NSI

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 3NSI, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3nsi] [3nsi_B] [3nsi_A] SWISS-PROT database: Domain organization of by SWISSPFAM Domain found in 3NSI: [S_100 ] by SMART

Other resources with information on 3NSI

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

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