1SY9	Calcium-Binding Protein	date	Apr 01, 2004
title	Structure Of Calmodulin Complexed With A Fragment Of The Olf Channel
authors	G.M.Contessa, M.Orsale, S.Melino, V.Torre, M.Paci, A.Desideri, D.O
compound		source
Molecule: Calmodulin Chain: A Engineered: Yes		Organism_scientific: Xenopus Laevis Organism_common: African Clawed Frog Organism_taxid: 8355 Expression_system: Escherichia Coli Expression_system_taxid: 562
Molecule: Cyclic-Nucleotide-Gated Olfactory Channel Chain: B Fragment: Residues 151-176 Synonym: Cyclic-Nucleotide-Gated Cation Channel 2, Cng Chan Cng-2, Cng2; Engineered: Yes		Synthetic: Yes Other_details: The Protein Was Chemically Synthesized. The Of The Protein Is Naturally Found In Bos Taurus (Bovine).
method	Solution NMR
ligand	CA	enzyme
related structures	by homologous chain: 1F71, 1R6P, 1SW8
Gene Ontology	Chain Function Process Component A
Primary reference	Structure of calmodulin complexed with an olfactory CNG channel fragment and role of the central linker: residual dipolar couplings to evaluate calmodulin binding modes outside the kinase family., Contessa GM, Orsale M, Melino S, Torre V, Paci M, Desideri A, Cicero DO, J Biomol NMR. 2005 Mar;31(3):185-99. PMID:15803393

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (872 Kb) [Save to disk] Biological Unit Coordinates (1sy9.pdb1.gz) 44 Kb LPC: Ligand-Protein Contacts for 1SY9 CSU: Contacts of Structural Units for 1SY9 Original NMR restraints for 1SY9 from PDB Experimental data, such as chemical shifts, at BioMagResBank (BMRB) NMR Restraints Grid from BioMagResBank (BMRB) Retrieve 1SY9 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1SY9 from S2C, [Save to disk]

View 1SY9 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 1SY9

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1SY9, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1sy9_B] [1sy9_A] [1sy9] SWISS-PROT database: [P62155] [Q03041] Domain organization of [CALM_XENLA] [CNGA2_BOVIN] by SWISSPFAM Domain found in 1SY9: [EFh ] by SMART

Other resources with information on 1SY9

Community annotation for 1SY9 at PDBWiki (http://pdbwiki.org) NMR Ensemble (OLDERADO: core, domain and representative structure database) MMDB (Entrez's Structure Database)

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