1CKK	Calmodulin-Peptide Complex	date	Nov 20, 1998
title	Calmodulinrat Ca2+Calmodulin Dependent Protein Kinase Frag
authors	M.Osawa, H.Tokumitsu, M.B.Swindells, H.Kurihara, M.Orita, T.Shiba T.Furuya, M.Ikura
compound		source
Molecule: Calmodulin-1 Chain: A Engineered: Yes		Organism_scientific: Xenopus Laevis Organism_common: African Clawed Frog Organism_taxid: 8355 Gene: Calm1 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_plasmid: Pas Expression_system_gene: Xenopus Laevis
Molecule: Calciumcalmodulin-Dependent Protein Kinase Kinas Chain: B Fragment: Calmodulin Binding Domain Synonym: Camkk 1,Cam-Kinase Iv Kinase,Calciumcalmodulin-De Protein Kinase Kinase Alpha,Camkk Alpha; Ec: 2.7.11.17 Engineered: Yes Other_details: 26-Residue Synthetic Peptide		Organism_scientific: Rattus Norvegicus Organism_common: Rat Organism_taxid: 10116 Gene: Camkk1
method	Solution NMR
ligand	CA	enzyme	Transferase E.C.2.7.11.17 BRENDA
note	1CKK is a representative structure
related structures	by homologous chain: 1CFF, 1NPQ
Gene Ontology	Chain Function Process Component A
Primary reference	A novel target recognition revealed by calmodulin in complex with Ca2+-calmodulin-dependent kinase kinase., Osawa M, Tokumitsu H, Swindells MB, Kurihara H, Orita M, Shibanuma T, Furuya T, Ikura M, Nat Struct Biol 1999 Sep;6(9):819-24. PMID:10467092

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (1347 Kb) [Save to disk] Biological Unit Coordinates (1ckk.pdb1.gz) 46 Kb LPC: Ligand-Protein Contacts for 1CKK CSU: Contacts of Structural Units for 1CKK Original NMR restraints for 1CKK from PDB Experimental data, such as chemical shifts, at BioMagResBank (BMRB) NMR Restraints Grid from BioMagResBank (BMRB) Retrieve 1CKK in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1CKK from S2C, [Save to disk]

View 1CKK 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 1CKK

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1CKK, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1ckka_, 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: [1ckk_B] [1ckk_A] [1ckk] SWISS-PROT database: [P62155] [P97756] Domain organization of [CALM_XENLA] [KKCC1_RAT] by SWISSPFAM Domain found in 1CKK: [EFh ] by SMART

Other resources with information on 1CKK

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

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