1IG5	Metal Binding Protein	date	Apr 17, 2001
title	Bovine Calbindin D9k Binding Mg2+
authors	E.M.Andersson, L.A.Svensson
compound		source
Molecule: Vitamin D-Dependent Calcium-Binding Protein, Inte Chain: A Synonym: Calbindin D9k Engineered: Yes		Organism_scientific: Bos Taurus Organism_common: Cattle Organism_taxid: 9913 Gene: Synthetic Gene Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: Mm294 Expression_system_vector_type: Plasmid Expression_system_plasmid: Picb1
symmetry	Space Group: P 43 21 2	R_factor 0.196 R_Free 0.285
crystal cell	length a length b length c angle alpha angle beta angle gamma 33.730 33.730 129.470 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	1.50 Å
ligand	MG	enzyme
note	1IG5 supersedes 5ICB
related structures	by homologous chain: 1QX2, 4ICB
Gene Ontology	Chain Function Process Component A
Primary reference	Structural basis for the negative allostery between Ca(2+)- and Mg(2+)-binding in the intracellular Ca(2+)-receptor calbindin D9k., Andersson M, Malmendal A, Linse S, Ivarsson I, Forsen S, Svensson LA, Protein Sci 1997 Jun;6(6):1139-47. PMID:9194174

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (17 Kb) [Save to disk] Biological Unit Coordinates (1ig5.pdb1.gz) 13 Kb LPC: Ligand-Protein Contacts for 1IG5 CSU: Contacts of Structural Units for 1IG5 Likely Quarternary Molecular Structure file(s) for 1IG5 Structure Factors (71 Kb) Retrieve 1IG5 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1IG5 from S2C, [Save to disk] Re-refined 1ig5 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1IG5 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 1IG5

Ramachandran plot from PDBSum

Structure-derived information

Conformational Epitope Prediction for 1IG5 from the CEP Server. Electron Density related parameters from EDS Electron Density Server, at Upsala Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1IG5, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ig5a_, 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: [1ig5_A] [1ig5] SWISS-PROT database: [P02633] Domain organization of [S100G_BOVIN] by SWISSPFAM Domain found in 1IG5: [S_100 ] by SMART

Other resources with information on 1IG5

Community annotation for 1IG5 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Domain movements in 1IG5 from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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