9RPU | pdb_00009rpu

PIN1 WW Domain Binding Mode with SPY-tide

• PDB DOI: https://doi.org/10.2210/pdb9RPU/pdb

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


• Deposited: 2025-06-25 Released: 2026-09-09 
• Deposition Author(s): Jiang, M., Sun, M., Mott, H., Creixell, P.
• Funding Organization(s): Cancer Research UK, Human Frontier Science Program (HFSP)

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Experimental Data Snapshot

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 25 
• Selection Criteria: structures with the lowest energy 

Literature

Identifying molecular determinants of epistasis and engineering protein superbinders with combinatorial deep mutational scanning libraries

Jiang, M., Sun, M., Nuo, C., Ord, M., Augustin, T.L., Li, A., Shah, N.H., Rinehart, J., Mott, H., Creixell, P.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: NMR Distance Restraints

Macromolecule Content 

• Total Structure Weight: 5.5 kDa 
• Atom Count: 389 
• Modeled Residue Count: 49 
• Deposited Residue Count: 49 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Peptidyl-prolyl cis-trans isomerase NIMA-interacting 1	A	37	Homo sapiens	Mutation(s): 0  Gene Names: PIN1 EC: 5.2.1.8
UniProt & NIH Common Fund Data Resources
Find proteins for Q13526 (Homo sapiens) Explore Q13526  Go to UniProtKB:  Q13526
PHAROS:  Q13526 GTEx:  ENSG00000127445

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
SPY-tide SPYpSPFPE	B	12	synthetic construct	Mutation(s): 0

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
SEP	B	L-PEPTIDE LINKING	C3 H8 N O6 P		SER

Experimental Data & Validation

Experimental Data

• Method: SOLUTION NMR
• Conformers Calculated: 100 
• Conformers Submitted: 25 
• Selection Criteria: structures with the lowest energy 

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-09-09 
Deposition Author(s): Jiang, M., Sun, M., Mott, H., Creixell, P.

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Funding Organization	Location	Grant Number
Cancer Research UK	United Kingdom	CRUK C9545/A29580
Cancer Research UK	United Kingdom	C9685/A26398
Human Frontier Science Program (HFSP)	France	HFSP: RGEC27/2024

Revision History  

• Version 1.0: 2026-09-09
  Type: Initial release