32CR | pdb_000032cr

SHANK3 PDZ (570-664) in complex with an internal PDZ binding motif (843-864) in Densin-180

PDB DOI: https://doi.org/10.2210/pdb32CR/pdb

Classification: PROTEIN BINDING
Organism(s): Mus musculus, Rattus norvegicus
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2026-07-05 Released: 2026-07-22
Deposition Author(s): Kallem, T., Goult, B.T.
Funding Organization(s): British Heart Foundation

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.98 Å
R-Value Free:
0.257 (Depositor), 0.207 (DCC)
R-Value Work:
0.201 (Depositor), 0.204 (DCC)

Starting Model: in silico
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wwPDB Validation 3D Report Full Report

Validation slider image for 32CR

This is version 1.0 of the entry. See complete history.

Literature

An internal PDZ-binding motif in Densin-180 promotes activity-dependent SHANK scaffold remodelling

Otani, Y., Srinivasan, V., Toller, J., Kallem, T., Ball, N., Barsukov, I., Saarikangas, J., Kreienkamp, H.J., Goult, B.T.

(2026) bioRxiv

DOI: https://doi.org/10.64898/2026.07.07.736929

Macromolecule Content

Total Structure Weight: 54.75 kDa
Atom Count: 3,955
Modeled Residue Count: 457
Deposited Residue Count: 496
Unique protein chains: 2

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
SH3 and multiple ankyrin repeat domains protein 3	A, C, E, G	101	Mus musculus	Mutation(s): 0 Gene Names: Shank3, Kiaa1650, Prosap2
UniProt & NIH Common Fund Data Resources
Find proteins for Q4ACU6 (Mus musculus) Explore Q4ACU6 Go to UniProtKB: Q4ACU6
IMPC: MGI:1930016
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q4ACU6
Sequence Annotations Expand
Reference Sequence

Find similar proteins by: Sequence | 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Leucine-rich repeat-containing protein 7	B, D, F, H	23	Rattus norvegicus	Mutation(s): 0
UniProt
Find proteins for P70587 (Rattus norvegicus) Explore P70587 Go to UniProtKB: P70587
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P70587
Sequence Annotations Expand
Reference Sequence

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.98 Å
R-Value Free: 0.257 (Depositor), 0.207 (DCC)
R-Value Work: 0.201 (Depositor), 0.204 (DCC)

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 63.89	α = 90
b = 71.34	β = 90
c = 114.92	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
xia2	data reduction
xia2	data scaling
MOLREP	phasing

Structure Validation

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View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-07-22

Deposition Author(s):

Funding Organization	Location	Grant Number
British Heart Foundation	United Kingdom	SP/F/23/150045

Revision History (Full details and data files)

Version 1.0: 2026-07-22
Type: Initial release

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.