1A03	Calcium-Binding Protein	date	Dec 08, 1997
title	The Three-Dimensional Structure Of Ca2+-Bound Calcyclin: Imp For Ca2+-Signal Transduction By S100 Proteins, Nmr, 20 Stru
authors	M.Sastry, R.R.Ketchem, O.Crescenzi, C.Weber, M.J.Lubienski, H.Hid W.J.Chazin
compound		source
Molecule: Calcyclin (Rabbit, Ca2+) Chain: A, B Synonym: 2a9, Cacy, S100a6, Pra Engineered: Yes Other_details: Rabbit, Ca2+		Organism_scientific: Oryctolagus Cuniculus Organism_common: Rabbit Organism_taxid: 9986 Cell_line: Bl21 Organ: Lung Gene: R-S100a6 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: De3 Expression_system_cell_line: Bl21 Expression_system_cellular_location: Cytoplasm Expression_system_vector_type: Pet Expression_system_plasmid: Pet1120 Expression_system_gene: R-S100a6
method	Solution NMR
Gene Ontology	Chain Function Process Component A, B
Primary reference	The three-dimensional structure of Ca(2+)-bound calcyclin: implications for Ca(2+)-signal transduction by S100 proteins., Sastry M, Ketchem RR, Crescenzi O, Weber C, Lubienski MJ, Hidaka H, Chazin WJ, Structure 1998 Feb 15;6(2):223-31. PMID:9519412

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (962 Kb) [Save to disk] Biological Unit Coordinates (1a03.pdb1.gz) 48 Kb CSU: Contacts of Structural Units for 1A03 Original NMR restraints for 1A03 from PDB Experimental data, such as chemical shifts, at BioMagResBank (BMRB) NMR Restraints Grid from BioMagResBank (BMRB) Retrieve 1A03 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1A03 from S2C, [Save to disk]

View 1A03 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 1A03

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1A03, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1a03a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1a03b_, region B [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: [1a03_A] [1a03_B] [1a03] SWISS-PROT database: [P30801] Domain organization of [S10A6_RABIT] by SWISSPFAM Domain found in 1A03: [S_100 ] by SMART

Other resources with information on 1A03

Community annotation for 1A03 at PDBWiki (http://pdbwiki.org) NMR Ensemble (OLDERADO: core, domain and representative structure database) MMDB (Entrez's Structure Database)

Movements, Movies and Images

Domain movements in 1A03 from the Database of Macromolecular Movements. Images from IMB Jena Image Library of Biological Macromolecules.

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