9R9B | pdb_00009r9b

Crystal structure of clathrin heavy chain in complex with a peptidomimetic inhibitor of the TACC3 interaction

• PDB DOI: https://doi.org/10.2210/pdb9R9B/pdb

• Classification: CELL CYCLE
• Organism(s): Rattus norvegicus, Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2025-05-19 Released: 2026-04-08 
• Deposition Author(s): Bayliss, R., Gunning, V.
• Funding Organization(s): Biotechnology and Biological Sciences Research Council (BBSRC), Cancer Research UK

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.15 Å
• R-Value Free: 
  0.268 (Depositor), 0.268 (DCC) 
• R-Value Work: 
  0.204 (Depositor), 0.204 (DCC) 

Starting Model: experimental

Literature

Development of a peptidomimetic inhibitor of the TACC3/clathrin interaction on the mitotic spindle

Gunning, V., Bayliss, 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: 66.91 kDa 
• Atom Count: 4,695 
• Modeled Residue Count: 589 
• Deposited Residue Count: 595 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Clathrin heavy chain 1	A	574	Rattus norvegicus	Mutation(s): 0  Gene Names: Cltc
UniProt
Find proteins for P11442 (Rattus norvegicus) Explore P11442  Go to UniProtKB:  P11442

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
SP-TACC3	B	21	Homo sapiens	Mutation(s): 0

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
MK8	B	L-PEPTIDE LINKING	C7 H15 N O2		LEU

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.15 Å
• R-Value Free:  0.268 (Depositor), 0.268 (DCC) 
• R-Value Work:  0.204 (Depositor), 0.204 (DCC) 

Space Group: P 6₁ 2 2

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 111.218	α = 90
b = 111.218	β = 90
c = 212.862	γ = 120

Software Package:

Software Name	Purpose
REFMAC	refinement
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-04-08 
Deposition Author(s): Bayliss, R., Gunning, V.

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Funding Organization	Location	Grant Number
Biotechnology and Biological Sciences Research Council (BBSRC)	United Kingdom	BB/V003577/1
Biotechnology and Biological Sciences Research Council (BBSRC)	United Kingdom	BB/V003577/2
Cancer Research UK	United Kingdom	C25425/A27718
Cancer Research UK	United Kingdom	C24461/A23302

Revision History  

• Version 1.0: 2026-04-08
  Type: Initial release