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- PDB-1qlc: Solution structure of the second PDZ domain of Postsynaptic Density-95 -

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Entry
Database: PDB / ID: 1qlc
TitleSolution structure of the second PDZ domain of Postsynaptic Density-95
ComponentsPOSTSYNAPTIC DENSITY PROTEIN 95
KeywordsPEPTIDE RECOGNITION / PDZ DOMAIN / NEURONAL NITRIC OXIDE SYNTHASE / NMDA RECEPTOR BINDING
Function / homology
Function and homology information


RHO GTPases activate CIT / positive regulation of AMPA glutamate receptor clustering / neuronal ion channel clustering / P2Y1 nucleotide receptor binding / beta-1 adrenergic receptor binding / Neurexins and neuroligins / neuroligin family protein binding / structural constituent of postsynaptic density / synaptic vesicle maturation / positive regulation of neuron projection arborization ...RHO GTPases activate CIT / positive regulation of AMPA glutamate receptor clustering / neuronal ion channel clustering / P2Y1 nucleotide receptor binding / beta-1 adrenergic receptor binding / Neurexins and neuroligins / neuroligin family protein binding / structural constituent of postsynaptic density / synaptic vesicle maturation / positive regulation of neuron projection arborization / regulation of grooming behavior / receptor localization to synapse / vocalization behavior / cerebellar mossy fiber / LGI-ADAM interactions / proximal dendrite / neuron spine / Trafficking of AMPA receptors / protein localization to synapse / AMPA glutamate receptor clustering / cellular response to potassium ion / Activation of Ca-permeable Kainate Receptor / dendritic branch / positive regulation of dendrite morphogenesis / dendritic spine morphogenesis / negative regulation of receptor internalization / juxtaparanode region of axon / frizzled binding / acetylcholine receptor binding / neuron projection terminus / dendritic spine organization / regulation of NMDA receptor activity / positive regulation of synapse assembly / Synaptic adhesion-like molecules / NMDA selective glutamate receptor signaling pathway / RAF/MAP kinase cascade / beta-2 adrenergic receptor binding / neurotransmitter receptor localization to postsynaptic specialization membrane / cortical cytoskeleton / social behavior / locomotory exploration behavior / AMPA glutamate receptor complex / regulation of neuronal synaptic plasticity / neuromuscular process controlling balance / kinesin binding / excitatory synapse / positive regulation of excitatory postsynaptic potential / Unblocking of NMDA receptors, glutamate binding and activation / positive regulation of synaptic transmission / glutamate receptor binding / D1 dopamine receptor binding / regulation of postsynaptic membrane neurotransmitter receptor levels / ionotropic glutamate receptor binding / dendrite cytoplasm / cell periphery / PDZ domain binding / establishment of protein localization / regulation of long-term neuronal synaptic plasticity / synaptic membrane / postsynaptic density membrane / neuromuscular junction / cerebral cortex development / cell-cell adhesion / kinase binding / cell junction / synaptic vesicle / cell-cell junction / nervous system development / positive regulation of cytosolic calcium ion concentration / protein-containing complex assembly / scaffold protein binding / protein phosphatase binding / chemical synaptic transmission / dendritic spine / postsynaptic membrane / postsynapse / neuron projection / postsynaptic density / signaling receptor binding / synapse / dendrite / protein-containing complex binding / protein kinase binding / glutamatergic synapse / endoplasmic reticulum / membrane / plasma membrane / cytosol / cytoplasm
Similarity search - Function
Polyubiquitination (PEST) N-terminal domain of MAGUK / Disks large homologue 1, N-terminal PEST domain / Polyubiquitination (PEST) N-terminal domain of MAGUK / PDZ-associated domain of NMDA receptors / PDZ-associated domain of NMDA receptors / Disks large 1-like / : / Guanylate kinase, conserved site / Guanylate kinase-like signature. / Guanylate kinase-like domain profile. ...Polyubiquitination (PEST) N-terminal domain of MAGUK / Disks large homologue 1, N-terminal PEST domain / Polyubiquitination (PEST) N-terminal domain of MAGUK / PDZ-associated domain of NMDA receptors / PDZ-associated domain of NMDA receptors / Disks large 1-like / : / Guanylate kinase, conserved site / Guanylate kinase-like signature. / Guanylate kinase-like domain profile. / Guanylate kinase-like domain / Guanylate kinase/L-type calcium channel beta subunit / Guanylate kinase / Guanylate kinase homologues. / PDZ domain / Pdz3 Domain / PDZ domain / SH3 domain / PDZ domain profile. / Domain present in PSD-95, Dlg, and ZO-1/2. / PDZ domain / PDZ superfamily / Src homology 3 domains / SH3-like domain superfamily / Src homology 3 (SH3) domain profile. / SH3 domain / Roll / P-loop containing nucleoside triphosphate hydrolase / Mainly Beta
Similarity search - Domain/homology
Disks large homolog 4
Similarity search - Component
Biological speciesRATTUS NORVEGICUS (Norway rat)
MethodSOLUTION NMR
AuthorsTochio, H. / Hung, F. / Li, M. / Zhang, M.
CitationJournal: J Mol Biol / Year: 2000
Title: Solution structure and backbone dynamics of the second PDZ domain of postsynaptic density-95.
Authors: H Tochio / F Hung / M Li / D S Bredt / M Zhang /
Abstract: The second PDZ domain of postsynaptic density-95 (PSD-95 PDZ2) plays a critical role in coupling N-methyl-D-aspartate receptors to neuronal nitric oxide synthase (nNOS). In this work, the solution ...The second PDZ domain of postsynaptic density-95 (PSD-95 PDZ2) plays a critical role in coupling N-methyl-D-aspartate receptors to neuronal nitric oxide synthase (nNOS). In this work, the solution structure of PSD-95 PDZ2 was determined to high resolution by NMR spectroscopy. The structure of PSD-95 PDZ2 was compared in detail with that of alpha1-syntrophin PDZ domain, as the PDZ domains share similar target interaction properties. The interaction of the PSD-95 PDZ2 with a carboxyl-terminal peptide derived from a cytoplasmic protein CAPON was studied by NMR titration experiments. Complex formation between PSD-95 PDZ2 and the nNOS PDZ was modelled on the basis of the crystal structure of the alpha1-syntrophin PDZ/nNOS PDZ dimer. We found that the prolonged loop connecting the betaB and betaC strands of PSD-95 PDZ2 is likely to play a role in both the binding of the carboxyl-terminal peptide and the nNOS beta-finger. Finally, the backbone dynamics of the PSD-95 PDZ2 in the absence of bound peptide were studied using a model-free approach. The "GLGF"-loop and the loop connecting alphaB and betaF of the protein display some degree of flexibility in solution. The rest of the protein is rigid and lacks detectable slow time-scale (microseconds to milliseconds) motions. In particular, the loop connecting betaB and betaC loop adopts a well-defined, rigid structure in solution. It appears that the loop adopts a pre-aligned conformation for the PDZ domain to interact with its targets.
History
DepositionAug 25, 1999Deposition site: PDBE / Processing site: PDBE
Revision 1.0Feb 6, 2000Provider: repository / Type: Initial release
Revision 1.1May 8, 2011Group: Version format compliance
Revision 1.2Jul 13, 2011Group: Version format compliance
Revision 1.3May 15, 2024Group: Data collection / Database references / Other
Category: chem_comp_atom / chem_comp_bond ...chem_comp_atom / chem_comp_bond / database_2 / pdbx_database_status
Item: _database_2.pdbx_DOI / _database_2.pdbx_database_accession / _pdbx_database_status.status_code_mr

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Assembly

Deposited unit
A: POSTSYNAPTIC DENSITY PROTEIN 95


Theoretical massNumber of molelcules
Total (without water)9,9821
Polymers9,9821
Non-polymers00
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 / -
Representative

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Components

#1: Protein POSTSYNAPTIC DENSITY PROTEIN 95 / PSD-95


Mass: 9982.496 Da / Num. of mol.: 1 / Fragment: THE SECOND PDZ DOMAIN
Source method: isolated from a genetically manipulated source
Source: (gene. exp.) RATTUS NORVEGICUS (Norway rat) / Production host: ESCHERICHIA COLI (E. coli) / References: UniProt: P31016

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Experimental details

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Experiment

ExperimentMethod: SOLUTION NMR

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Sample preparation

Sample conditionsIonic strength: 100 mM / pH: 6 / Pressure: 1 atm / Temperature: 303 K
Crystal grow
*PLUS
Method: other / Details: NMR

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NMR measurement

NMR spectrometerType: Varian UNITY / Manufacturer: Varian / Model: UNITY / Field strength: 500 MHz

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Processing

NMR softwareName: X-PLOR / Version: 3.8 / Developer: BRUNGER / Classification: refinement
RefinementSoftware ordinal: 1
Details: TORSION ANGLE DYNAMICS SIMULATED ANNEALING REFINEMENT
NMR ensembleConformers submitted total number: 20

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