2QLG

mPlum

• PDB DOI: https://doi.org/10.2210/pdb2QLG/pdb

• Classification: FLUORESCENT PROTEIN
• Organism(s): Discosoma sp. LW-2004
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2007-07-12 Released: 2008-07-22 
• Deposition Author(s): Shu, X., Remington, S.J.

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.243 
• R-Value Work: 0.173 
• R-Value Observed: 0.173 

Starting Model: experimental

Literature

Structural Studies of Far-Red Emission in mPlum, a Monomeric Red Fluorescent Protein

Shu, X., Wang, L., Colip, L., Kallio, K., Remington, S.J.

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 2  

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

Biological assembly 2 assigned by authors and generated by PISA (software)

Macromolecule Content

• Total Structure Weight: 51.21 kDa 
• Atom Count: 3,945 
• Modelled Residue Count: 432 
• Deposited Residue Count: 448 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Fluorescent protein plum	A	224	Discosoma sp. LW-2004	Mutation(s): 1
UniProt
Find proteins for Q5S3G7 (Discosoma sp. LW-2004) Explore Q5S3G7  Go to UniProtKB:  Q5S3G7

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Fluorescent protein plum	B	224	Discosoma sp. LW-2004	Mutation(s): 1
UniProt
Find proteins for Q5S3G7 (Discosoma sp. LW-2004) Explore Q5S3G7  Go to UniProtKB:  Q5S3G7

Small Molecules

Modified Residues  2 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CH6	A	L-PEPTIDE LINKING	C16 H19 N3 O4 S		MET, TYR, GLY
NRQ	B	L-PEPTIDE LINKING	C16 H17 N3 O4 S		MET, TYR, GLY

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.80 Å
• R-Value Free: 0.243 
• R-Value Work: 0.173 
• R-Value Observed: 0.173 
• Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 61.192	α = 90
b = 78.276	β = 90
c = 96.551	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
TNT	refinement
HKL-2000	data reduction
HKL-2000	data scaling
TNT	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 2008-07-22 
Deposition Author(s): Shu, X., Remington, S.J.

Revision History  

• Version 1.0: 2008-07-22
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2023-08-30
  Changes: Data collection, Database references, Derived calculations, Refinement description
• Version 1.3: 2023-11-15
  Changes: Data collection