9Y92 | pdb_00009y92

Nanorana parkeri saxiphilin:STX-C13-OBz (co-crystal)

• PDB DOI: https://doi.org/10.2210/pdb9Y92/pdb

• Classification: ANTITOXIN
• Organism(s): Nanorana parkeri
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2025-09-12 Released: 2026-05-27 
• Deposition Author(s): Zakrzewska, S., Minor, D.L.
• Funding Organization(s): Department of Defense (DOD, United States)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free: 
  0.226 (Depositor), 0.226 (DCC) 
• R-Value Work: 
  0.198 (Depositor), 0.198 (DCC) 
• R-Value Observed: 
  0.199 (Depositor) 

Starting Model: experimental

Literature

Nanorana parkeri saxiphilin:STX-C13-OBz (co-crystal)

Zakrzewska, S., Minor, D.L.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 95.3 kDa 
• Atom Count: 6,819 
• Modeled Residue Count: 821 
• Deposited Residue Count: 854 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Saxiphilin	A	854	Nanorana parkeri	Mutation(s): 0  Gene Names: XM_018555331.1
UniProt
Find proteins for A0A9X9ZA84 (Nanorana parkeri) Explore A0A9X9ZA84  Go to UniProtKB:  A0A9X9ZA84

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A1CTG (Subject of Investigation/LOI)	C [auth A]	[(2Z,3aS,4R,6Z,7R,10aS)-10,10-dihydroxy-2,6-diiminooctahydro-1H,8H-pyrrolo[1,2-c]purin-4-yl]methyl benzoate C16 H20 N6 O4 DNKMSIYVQXSQTQ-MMPTUQATSA-N
1PE	B [auth A]	PENTAETHYLENE GLYCOL C10 H22 O6 JLFNLZLINWHATN-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.90 Å
• R-Value Free:  0.226 (Depositor), 0.226 (DCC) 
• R-Value Work:  0.198 (Depositor), 0.198 (DCC) 
• R-Value Observed: 0.199 (Depositor) 

Space Group: H 3

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 228.643	α = 90
b = 228.643	β = 90
c = 67.18	γ = 120

Software Package:

Software Name	Purpose
PHENIX	refinement
PDB_EXTRACT	data extraction
XDS	data reduction
Aimless	data scaling
PHASER	phasing

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-05-27 
Deposition Author(s): Zakrzewska, S., Minor, D.L.

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Funding Organization	Location	Grant Number
Department of Defense (DOD, United States)	United States	HDTRA-1-19-1-0040
Department of Defense (DOD, United States)	United States	HDTRA-1-21-1-10011
Department of Defense (DOD, United States)	United States	HDTRA-1-23-1-0026

Revision History  

• Version 1.0: 2026-05-27
  Type: Initial release