1G4Y	Signaling Protein	date	Jan 07, 2001
title	1.60 A Crystal Structure Of The Gating Domain From Small Con Potassium Channel Complexed With Calcium-Calmodulin
authors	M.A.Schumacher, A.Rivard, H.P.Bachinger, J.P.Adelman
compound		source
Molecule: Calcium-Activated Potassium Channel Rsk2 Chain: B Fragment: Calmodulin-Binding Domain Engineered: Yes		Organism_scientific: Rattus Norvegicus Organism_common: Norway Rat Organism_taxid: 10116 Gene: Rat Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet23b
Molecule: Calmodulin Chain: R Engineered: Yes		Organism_scientific: Rattus Norvegicus Organism_common: Norway Rat Organism_taxid: 10116 Gene: Rat Expression_system: Escherichia Coli Bl21(De3) Expression_system_taxid: 469008 Expression_system_strain: Bl21(De3) Expression_system_vector_type: Plasmid Expression_system_plasmid: Pet33b
symmetry	Space Group: C 1 2 1	R_factor 0.221 R_Free 0.251
crystal cell	length a length b length c angle alpha angle beta angle gamma 77.650 66.690 64.690 90.00 93.70 90.00
method	X-Ray Diffraction	resolution	1.60 Å
ligand	CA, SO4	enzyme
note	1G4Y is a representative structure
related structures	by homologous chain: 1GGZ, 1KKD, 1QTX
Gene Ontology	Chain Function Process Component B R ion channel binding establishment of protein loc...
Primary reference	Structure of the gating domain of a Ca2+-activated K+ channel complexed with Ca2+/calmodulin., Schumacher MA, Rivard AF, Bachinger HP, Adelman JP, Nature 2001 Apr 26;410(6832):1120-4. PMID:11323678

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (47 Kb) [Save to disk] Biological Unit Coordinates (1g4y.pdb1.gz) 81 Kb LPC: Ligand-Protein Contacts for 1G4Y CSU: Contacts of Structural Units for 1G4Y Likely Quarternary Molecular Structure file(s) for 1G4Y Retrieve 1G4Y in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1G4Y from S2C, [Save to disk]

View 1G4Y 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 1G4Y

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute 3D motif for 1G4Y, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1g4yb_, region B [Jmol] [rasmolscript] [script source]     - Domain d1g4yr_, region R [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: [1g4y_B] [1g4y_R] [1g4y] SWISS-PROT database: [P62161] [P70604] Domain organization of [CALM_RAT] [KCNN2_RAT] by SWISSPFAM Domains found in 1G4Y: [CaMBD] [EFh ] by SMART

Other resources with information on 1G4Y

Community annotation for 1G4Y at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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