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- PDB-2hf5: The structure and function of a novel two-site calcium-binding fr... -

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Basic information

Entry
Database: PDB / ID: 2hf5
TitleThe structure and function of a novel two-site calcium-binding fragment of calmodulin
ComponentsCalmodulin
KeywordsMETAL BINDING PROTEIN / calmodulin fragment / calcium-binding / EF-hand / calmodulin / HLH
Function / homology
Function and homology information


: / : / positive regulation of cyclic-nucleotide phosphodiesterase activity / : / establishment of protein localization to mitochondrial membrane / type 3 metabotropic glutamate receptor binding / CaM pathway / Cam-PDE 1 activation / Sodium/Calcium exchangers / Calmodulin induced events ...: / : / positive regulation of cyclic-nucleotide phosphodiesterase activity / : / establishment of protein localization to mitochondrial membrane / type 3 metabotropic glutamate receptor binding / CaM pathway / Cam-PDE 1 activation / Sodium/Calcium exchangers / Calmodulin induced events / Reduction of cytosolic Ca++ levels / Activation of Ca-permeable Kainate Receptor / CREB1 phosphorylation through the activation of CaMKII/CaMKK/CaMKIV cascasde / Loss of phosphorylation of MECP2 at T308 / CREB1 phosphorylation through the activation of Adenylate Cyclase / PKA activation / negative regulation of high voltage-gated calcium channel activity / CaMK IV-mediated phosphorylation of CREB / Glycogen breakdown (glycogenolysis) / nitric-oxide synthase binding / response to corticosterone / positive regulation of DNA binding / organelle localization by membrane tethering / negative regulation of calcium ion export across plasma membrane / CLEC7A (Dectin-1) induces NFAT activation / Activation of RAC1 downstream of NMDARs / regulation of synaptic vesicle exocytosis / mitochondrion-endoplasmic reticulum membrane tethering / autophagosome membrane docking / presynaptic endocytosis / regulation of cardiac muscle cell action potential / negative regulation of peptidyl-threonine phosphorylation / calcineurin-mediated signaling / positive regulation of ryanodine-sensitive calcium-release channel activity / regulation of cell communication by electrical coupling involved in cardiac conduction / Synthesis of IP3 and IP4 in the cytosol / negative regulation of ryanodine-sensitive calcium-release channel activity / Phase 0 - rapid depolarisation / Negative regulation of NMDA receptor-mediated neuronal transmission / Unblocking of NMDA receptors, glutamate binding and activation / regulation of synaptic vesicle endocytosis / RHO GTPases activate PAKs / Ion transport by P-type ATPases / Uptake and function of anthrax toxins / protein phosphatase activator activity / adenylate cyclase binding / Long-term potentiation / Regulation of MECP2 expression and activity / Calcineurin activates NFAT / regulation of ryanodine-sensitive calcium-release channel activity / DARPP-32 events / catalytic complex / Smooth Muscle Contraction / regulation of cardiac muscle contraction / detection of calcium ion / RHO GTPases activate IQGAPs / phosphatidylinositol 3-kinase binding / calcium channel inhibitor activity / regulation of cardiac muscle contraction by regulation of the release of sequestered calcium ion / presynaptic cytosol / cellular response to interferon-beta / Protein methylation / Activation of AMPK downstream of NMDARs / activation of adenylate cyclase activity / positive regulation of protein autophosphorylation / regulation of release of sequestered calcium ion into cytosol by sarcoplasmic reticulum / Ion homeostasis / eNOS activation / enzyme regulator activity / regulation of calcium-mediated signaling / titin binding / Tetrahydrobiopterin (BH4) synthesis, recycling, salvage and regulation / voltage-gated potassium channel complex / sperm midpiece / calcium channel complex / substantia nigra development / positive regulation of peptidyl-threonine phosphorylation / calyx of Held / nitric-oxide synthase regulator activity / response to amphetamine / FCERI mediated Ca+2 mobilization / adenylate cyclase activator activity / Ras activation upon Ca2+ influx through NMDA receptor / FCGR3A-mediated IL10 synthesis / regulation of heart rate / sarcomere / positive regulation of nitric-oxide synthase activity / protein serine/threonine kinase activator activity / Antigen activates B Cell Receptor (BCR) leading to generation of second messengers / regulation of cytokinesis / VEGFR2 mediated cell proliferation / VEGFR2 mediated vascular permeability / Translocation of SLC2A4 (GLUT4) to the plasma membrane / positive regulation of protein serine/threonine kinase activity / spindle microtubule / positive regulation of receptor signaling pathway via JAK-STAT / RAF activation / Transcriptional activation of mitochondrial biogenesis / mitochondrial membrane / Stimuli-sensing channels
Similarity search - Function
: / EF-hand / Recoverin; domain 1 / EF-hand domain pair / EF-hand, calcium binding motif / EF-Hand 1, calcium-binding site / EF-hand calcium-binding domain. / EF-hand calcium-binding domain profile. / EF-hand domain / EF-hand domain pair ...: / EF-hand / Recoverin; domain 1 / EF-hand domain pair / EF-hand, calcium binding motif / EF-Hand 1, calcium-binding site / EF-hand calcium-binding domain. / EF-hand calcium-binding domain profile. / EF-hand domain / EF-hand domain pair / Orthogonal Bundle / Mainly Alpha
Similarity search - Domain/homology
Calmodulin-1 / Calmodulin-3
Similarity search - Component
Biological speciesHomo sapiens (human)
MethodSOLUTION NMR / Restrained molecular dynamics, simulated annealing
AuthorsLakowski, T.M. / Lee, G.M. / Reid, R.E. / McIntosh, L.P.
CitationJournal: Protein Sci. / Year: 2007
Title: Calcium-induced folding of a fragment of calmodulin composed of EF-hands 2 and 3
Authors: Lakowski, T.M. / Lee, G.M. / Okon, M. / Reid, R.E. / McIntosh, L.P.
History
DepositionJun 23, 2006Deposition site: RCSB / Processing site: RCSB
Revision 1.0May 1, 2007Provider: repository / Type: Initial release
Revision 1.1May 1, 2008Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3Mar 9, 2022Group: Data collection / Database references / Derived calculations
Category: database_2 / pdbx_nmr_software ...database_2 / pdbx_nmr_software / pdbx_struct_assembly / pdbx_struct_conn_angle / pdbx_struct_oper_list / struct_conn / struct_site
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession ..._database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_nmr_software.name / _pdbx_struct_conn_angle.ptnr1_auth_comp_id / _pdbx_struct_conn_angle.ptnr1_auth_seq_id / _pdbx_struct_conn_angle.ptnr1_label_atom_id / _pdbx_struct_conn_angle.ptnr1_label_comp_id / _pdbx_struct_conn_angle.ptnr1_label_seq_id / _pdbx_struct_conn_angle.ptnr3_auth_comp_id / _pdbx_struct_conn_angle.ptnr3_auth_seq_id / _pdbx_struct_conn_angle.ptnr3_label_atom_id / _pdbx_struct_conn_angle.ptnr3_label_comp_id / _pdbx_struct_conn_angle.ptnr3_label_seq_id / _pdbx_struct_conn_angle.value / _struct_conn.pdbx_dist_value / _struct_conn.ptnr1_auth_comp_id / _struct_conn.ptnr1_auth_seq_id / _struct_conn.ptnr1_label_asym_id / _struct_conn.ptnr1_label_atom_id / _struct_conn.ptnr1_label_comp_id / _struct_conn.ptnr1_label_seq_id / _struct_conn.ptnr2_auth_comp_id / _struct_conn.ptnr2_auth_seq_id / _struct_conn.ptnr2_label_asym_id / _struct_conn.ptnr2_label_atom_id / _struct_conn.ptnr2_label_comp_id / _struct_conn.ptnr2_label_seq_id / _struct_site.pdbx_auth_asym_id / _struct_site.pdbx_auth_comp_id / _struct_site.pdbx_auth_seq_id
Revision 1.4May 29, 2024Group: Data collection / Category: chem_comp_atom / chem_comp_bond
Remark 650HELIX DETERMINATION METHOD: AUTHOR

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Structure visualization

Structure viewerMolecule:
MolmilJmol/JSmol

Downloads & links

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Assembly

Deposited unit
A: Calmodulin
hetero molecules


Theoretical massNumber of molelcules
Total (without water)7,7893
Polymers7,7091
Non-polymers802
Water00
1


  • Idetical with deposited unit
  • defined by author
TypeNameSymmetry operationNumber
identity operation1_555x,y,z1
NMR ensembles
DataCriteria
Number of conformers (submitted / calculated)20 / 50structures with the least restraint violations,structures with the lowest energy
RepresentativeModel #1lowest energy

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Components

#1: Protein Calmodulin / CaM


Mass: 7708.542 Da / Num. of mol.: 1 / Fragment: EF-hands 2 and 3 (residues 46-113)
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) Homo sapiens (human)
Gene: CALM1, CALM, CAM, CAM1, CALM2, CAM2, CAMB, CALM3, CAM3, CAMC, CAMIII
Plasmid: pET28a / Production host: Escherichia coli (E. coli) / Strain (production host): BL21 star DE3 / References: UniProt: P62158, UniProt: P0DP23*PLUS
#2: Chemical ChemComp-CA / CALCIUM ION


Mass: 40.078 Da / Num. of mol.: 2 / Source method: obtained synthetically / Formula: Ca

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Experimental details

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Experiment

ExperimentMethod: SOLUTION NMR
NMR experiment
Conditions-IDExperiment-IDSolution-IDType
1111H-15N-1H NOESY-HSQC
121simultaneous 1H-13C/15N-1H NOESY-HSQC
131aromatic 1H-13C-1H NOESY-HSQC
141methyl 1H-13C/15N-1H NOESY-HSQC

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Sample preparation

DetailsContents: 0.5mM CaM2/3 U-15N,13C; 20 mM Tris d11, 50 mM KCl, 10 mM CaCl2, 90% H2O, and 10% D2O
Solvent system: 90% H2O/10% D2O
Sample conditionsIonic strength: 50 mM / pH: 7.4 / Pressure: ambient / Temperature: 298 K

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NMR measurement

RadiationProtocol: SINGLE WAVELENGTH / Monochromatic (M) / Laue (L): M
Radiation wavelengthRelative weight: 1
NMR spectrometer
TypeManufacturerModelField strength (MHz)Spectrometer-ID
Varian UNITYVarianUNITY5001
Varian INOVAVarianINOVA6002

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Processing

NMR software
NameVersionDeveloperClassification
CNS1.1BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,READ,RICE,SIMONSON,WARRENstructure solution
ARIA1.2Linge, Habeck et al. 2003structure solution
Felix2000Accelrys, Inc.processing
NMRPipe2006Delaglio, Grzesiek et al. 1995processing
Sparky3.111Goddard and Kneeler 1999data analysis
ARIA1.2Linge, Habeck et al. 2003refinement
CNS1.1BRUNGER,ADAMS,CLORE,DELANO,GROS,GROSSE-KUNSTLEVE,JIANG,KUSZEWSKI,NILGES,PANNU,READ,RICE,SIMONSON,WARRENrefinement
RefinementMethod: Restrained molecular dynamics, simulated annealing / Software ordinal: 1
NMR representativeSelection criteria: lowest energy
NMR ensembleConformer selection criteria: structures with the least restraint violations,structures with the lowest energy
Conformers calculated total number: 50 / Conformers submitted total number: 20

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