9X8E | pdb_00009x8e

Photo-Induced Distance-Dependent Electron Transfer of Fluorescent Proteins- PsmO-Cr (PSmOrange-chromium)

• PDB DOI: https://doi.org/10.2210/pdb9X8E/pdb

• Classification: FLUORESCENT PROTEIN
• Organism(s): Discosoma sp.
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2025-10-19 Released: 2026-10-28 
• Deposition Author(s): Dong, J.S.
• Funding Organization(s): National Natural Science Foundation of China (NSFC)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.32 Å
• R-Value Free: 
  0.200 (Depositor), 0.212 (DCC) 
• R-Value Work: 
  0.179 (Depositor), 0.192 (DCC) 
• R-Value Observed: 
  0.180 (Depositor) 

Starting Model: experimental

Literature

Photo-Induced Distance-Dependent Electron Transfer of Fluorescent Proteins

Dong, J.S.

To be published.

Biological Assembly 1  

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

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

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 26.34 kDa 
• Atom Count: 2,024 
• Modeled Residue Count: 229 
• Deposited Residue Count: 229 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PSmOrange	A [auth D]	229	Discosoma sp.	Mutation(s): 0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
1GP	B [auth D]	SN-GLYCEROL-1-PHOSPHATE C3 H9 O6 P AWUCVROLDVIAJX-VKHMYHEASA-N
CR (Subject of Investigation/LOI)	C [auth D], D, E [auth D]	CHROMIUM ION Cr BFGKITSFLPAWGI-UHFFFAOYSA-N

Non-standard Monomers  1 Unique
ID	Chains	Type	Formula	2D Diagram
OFM	A [auth D]	L-PEPTIDE LINKING	C24 H24 N4 O6

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.32 Å
• R-Value Free:  0.200 (Depositor), 0.212 (DCC) 
• R-Value Work:  0.179 (Depositor), 0.192 (DCC) 
• R-Value Observed: 0.180 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 36.85	α = 90
b = 83.217	β = 111.4
c = 38.862	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
Aimless	data scaling
DIALS	data reduction
MOLREP	phasing
PDB_EXTRACT	data extraction

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-10-28 
Deposition Author(s): Dong, J.S.

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Funding Organization	Location	Grant Number
National Natural Science Foundation of China (NSFC)	China	31900913

Revision History  

• Version 1.0: 2026-10-28
  Type: Initial release