1TP3

PDZ3 domain of PSD-95 protein complexed with KKETPV peptide ligand

• PDB DOI: https://doi.org/10.2210/pdb1TP3/pdb

• Classification: PROTEIN BINDING
• Organism(s): Rattus norvegicus, synthetic construct
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2004-06-15 Released: 2005-09-20 
• Deposition Author(s): Saro, D., Martin, P., Vickrey, J.F., Griffin, A., Kovari, L.C., Spaller, M.R.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.99 Å
• R-Value Free: 0.296 
• R-Value Work: 0.225 
• R-Value Observed: 0.228 

Literature

Structure of the third PDZ domain of PSD-95 protein complexed with KKETPV peptide ligand

Saro, D., Martin, P., Vickrey, J.F., Griffin, A., Kovari, L.C., Spaller, M.R.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 2-mer - A1B1 

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 13.44 kDa 
• Atom Count: 974 
• Modelled Residue Count: 121 
• Deposited Residue Count: 125 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Presynaptic density protein 95	A	119	Rattus norvegicus	Mutation(s): 0  Gene Names: DLG4, DLGH4, PSD95
UniProt
Find proteins for P31016 (Rattus norvegicus) Explore P31016  Go to UniProtKB:  P31016

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
KKETPV peptide ligand	B	6	synthetic construct	Mutation(s): 0

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.99 Å
• R-Value Free: 0.296 
• R-Value Work: 0.225 
• R-Value Observed: 0.228 
• Space Group: P 4₁ 3 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 89.663	α = 90
b = 89.663	β = 90
c = 89.663	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
d*TREK	data scaling
XTALVIEW	refinement

Structure Validation

Entry History 

Deposition Data

• Released Date: 2005-09-20 
Deposition Author(s): Saro, D., Martin, P., Vickrey, J.F., Griffin, A., Kovari, L.C., Spaller, M.R.

Revision History  

• Version 1.0: 2005-09-20
  Type: Initial release
  
• Version 1.1: 2008-04-30
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2015-07-01
  Changes: Database references, Structure summary
• Version 1.4: 2017-10-11
  Changes: Refinement description
• Version 1.5: 2023-08-23
  Changes: Data collection, Database references, Refinement description