9X8B | pdb_00009x8b

Photo-Induced Distance-Dependent Electron Transfer of Fluorescent Proteins- PsmO-Cd (PSmOrange-cadmium)

PDB DOI: https://doi.org/10.2210/pdb9X8B/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)

Experimental Data Snapshot

Method: X-RAY DIFFRACTION
Resolution: 1.35 Å
R-Value Free:
0.209 (Depositor), 0.214 (DCC)
R-Value Work:
0.189 (Depositor), 0.196 (DCC)
R-Value Observed:
0.190 (Depositor)

Starting Model: experimental
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This is version 1.0 of the entry. See complete history.

Literature

Photo-Induced Distance-Dependent Electron Transfer of Fluorescent Proteins

Dong, J.S.

To be published.

Macromolecule Content

Total Structure Weight: 26.54 kDa
Atom Count: 2,054
Modeled Residue Count: 229
Deposited Residue Count: 229
Unique protein chains: 1

Macromolecules

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Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PSmOrange	A [auth B]	229	Discosoma sp.	Mutation(s): 0
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
CD (Subject of Investigation/LOI) Query on CD Download:Ideal Coordinates CCD File SDF format, chain D [auth B] SDF format, chain C [auth B] SDF format, chain B MOL2 format, chain D [auth B] MOL2 format, chain C [auth B] MOL2 format, chain B mmCIF format, chain D [auth B] mmCIF format, chain C [auth B] mmCIF format, chain B	B, C [auth B], D [auth B]	CADMIUM ION Cd WLZRMCYVCSSEQC-UHFFFAOYSA-N		Interactions Focus chain B Focus chain C [auth B] Focus chain D [auth B] Interactions & Density Focus chain B Focus chain C [auth B] Focus chain D [auth B]

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

Experimental Data & Validation

Experimental Data

Method: X-RAY DIFFRACTION
Resolution: 1.35 Å
R-Value Free: 0.209 (Depositor), 0.214 (DCC)
R-Value Work: 0.189 (Depositor), 0.196 (DCC)
R-Value Observed: 0.190 (Depositor)

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 36.116	α = 90
b = 82.838	β = 115.72
c = 37.126	γ = 90

Software Package:

Software Name	Purpose
REFMAC	refinement
xia2	data scaling
MOLREP	phasing
PDB_EXTRACT	data extraction
DIALS	data reduction

Structure Validation

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Entry History

& Funding Information

Deposition Data

Released Date: 2026-10-28

Deposition Author(s):

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

Revision History (Full details and data files)

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