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Yorodumi- PDB-1kkd: Solution structure of the calmodulin binding domain (CaMBD) of sm... -
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-Basic information
Entry | Database: PDB / ID: 1kkd | ||||||
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Title | Solution structure of the calmodulin binding domain (CaMBD) of small conductance Ca2+-activated potassium channels (SK2) | ||||||
Components | Small conductance calcium-activated potassium channel protein 2 | ||||||
Keywords | SIGNALING PROTEIN / SMALL-CONDUCTANCE CALCIUM-ACTIVATED POTASSIUM CHANNEL / CALMODULIN BINDING DOMAIN (CAMBD) / CHANNEL GATING | ||||||
Function / homology | Function and homology information Ca2+ activated K+ channels / small conductance calcium-activated potassium channel activity / membrane repolarization during atrial cardiac muscle cell action potential / calcium-activated potassium channel activity / positive regulation of potassium ion transport / inward rectifier potassium channel activity / regulation of potassium ion transmembrane transport / alpha-actinin binding / regulation of neuronal synaptic plasticity / smooth endoplasmic reticulum ...Ca2+ activated K+ channels / small conductance calcium-activated potassium channel activity / membrane repolarization during atrial cardiac muscle cell action potential / calcium-activated potassium channel activity / positive regulation of potassium ion transport / inward rectifier potassium channel activity / regulation of potassium ion transmembrane transport / alpha-actinin binding / regulation of neuronal synaptic plasticity / smooth endoplasmic reticulum / potassium ion transmembrane transport / T-tubule / potassium ion transport / modulation of chemical synaptic transmission / sarcolemma / Z disc / postsynaptic membrane / dendritic spine / calmodulin binding / protein domain specific binding / neuronal cell body / glutamatergic synapse / cell surface / protein homodimerization activity / membrane / plasma membrane Similarity search - Function | ||||||
Biological species | Rattus norvegicus (Norway rat) | ||||||
Method | SOLUTION NMR / SIMULATED ANNEALING, TORSION ANGLE DYNAMICS | ||||||
Authors | Wissmann, R. / Bildl, W. / Neumann, H. / Rivard, A.F. / Kloecker, N. / Weitz, D. / Schulte, U. / Adelman, J.P. / Bentrop, D. / Fakler, B. | ||||||
Citation | Journal: J.Biol.Chem. / Year: 2002 Title: A helical region in the C terminus of small-conductance Ca2+-activated K+ channels controls assembly with apo-calmodulin. Authors: Wissmann, R. / Bildl, W. / Neumann, H. / Rivard, A.F. / Klocker, N. / Weitz, D. / Schulte, U. / Adelman, J.P. / Bentrop, D. / Fakler, B. #1: Journal: J.Neurosci. / Year: 1999 Title: Domains responsible for constitutive and Ca2+-dependent interactions between calmodulin and small conductance Ca2+- activated potassium channels Authors: Keen, J.E. / Khawaled, R. / Farrens, D.L. / Neelands, T. / Rivard, A. / Bond, C.T. / Janowsky, A. / Fakler, B. / Adelman, J.P. / Maylie, J. #2: Journal: Nature / Year: 1998 Title: Mechanism of calcium gating in small-conductance calcium-activated potassium channels Authors: Xia, X.-M. / Fakler, B. / Rivard, A. / Wayman, G. / Johnson-Pais, T. / Keen, J.E. / Ishii, T. / Hirschberg, B. / Bond, C.T. / Lutsenko, S. / Maylie, J. / Adelman, J.P. #3: Journal: Nature / Year: 2001 Title: Structure of the gating domain of a Ca2+-activated K+ channel complexed with Ca2+/calmodulin Authors: Schumacher, M.A. / Rivard, A.F. / Baechinger, H.P. / Adelman, J.P. | ||||||
History |
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-Structure visualization
Structure viewer | Molecule: MolmilJmol/JSmol |
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-Downloads & links
-Download
PDBx/mmCIF format | 1kkd.cif.gz | 720 KB | Display | PDBx/mmCIF format |
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PDB format | pdb1kkd.ent.gz | 598.8 KB | Display | PDB format |
PDBx/mmJSON format | 1kkd.json.gz | Tree view | PDBx/mmJSON format | |
Others | Other downloads |
-Validation report
Summary document | 1kkd_validation.pdf.gz | 342.8 KB | Display | wwPDB validaton report |
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Full document | 1kkd_full_validation.pdf.gz | 504.6 KB | Display | |
Data in XML | 1kkd_validation.xml.gz | 43 KB | Display | |
Data in CIF | 1kkd_validation.cif.gz | 63.4 KB | Display | |
Arichive directory | https://data.pdbj.org/pub/pdb/validation_reports/kk/1kkd ftp://data.pdbj.org/pub/pdb/validation_reports/kk/1kkd | HTTPS FTP |
-Related structure data
Related structure data | |
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Similar structure data |
-Links
-Assembly
Deposited unit |
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NMR ensembles |
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-Components
#1: Protein | Mass: 12243.395 Da / Num. of mol.: 1 / Fragment: CYTOPLASMIC CALMODULIN BINDING DOMAIN (CAMBD) Source method: isolated from a genetically manipulated source Source: (gene. exp.) Rattus norvegicus (Norway rat) / Gene: SK2 (KCNN2) / Plasmid: PET23B / Species (production host): Escherichia coli / Production host: Escherichia coli BL21(DE3) (bacteria) / Strain (production host): BL21(DE3) / References: UniProt: P70604 |
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-Experimental details
-Experiment
Experiment | Method: SOLUTION NMR | ||||||||||||||||||||
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NMR experiment |
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-Sample preparation
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Crystal grow | *PLUS Method: other / Details: NMR |
-NMR measurement
NMR spectrometer |
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-Processing
NMR software |
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Refinement | Method: SIMULATED ANNEALING, TORSION ANGLE DYNAMICS / Software ordinal: 1 Details: see Table 1 in the primary citation for structural statistics | ||||||||||||||||||||||||
NMR representative | Selection criteria: closest to the average | ||||||||||||||||||||||||
NMR ensemble | Conformer selection criteria: structures with the least restraint violations,target function Conformers calculated total number: 300 / Conformers submitted total number: 23 |