2QRF | pdb_00002qrf

Green Fluorescent Protein: Cyclized-only Intermediate of Chromophore Maturation in the Q183E variant

• PDB DOI: https://doi.org/10.2210/pdb2QRF/pdb

• Classification: FLUORESCENT PROTEIN
• Organism(s): Aequorea victoria
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 2007-07-28 Released: 2009-04-21 
• Deposition Author(s): Wood, T.I., Barondeau, D.P., Hitomi, C., Tainer, J.A., Getzoff, E.D.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free: 
  0.229 (Depositor), 0.210 (DCC) 
• R-Value Work: 
  0.144 (Depositor), 0.140 (DCC) 
• R-Value Observed: 
  0.229 (Depositor) 

Literature

Green Fluorescent Protein Chromophore - Cyclized Intermediate

Wood, T.I., Barondeau, D.P., Hitomi, C., Tainer, J.A., Getzoff, E.D.

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)

Macromolecule Content 

• Total Structure Weight: 25.96 kDa 
• Atom Count: 2,151 
• Modeled Residue Count: 226 
• Deposited Residue Count: 228 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Green fluorescent protein	A	228	Aequorea victoria	Mutation(s): 6  Gene Names: GFP
UniProt
Find proteins for P42212 (Aequorea victoria) Explore P42212  Go to UniProtKB:  P42212

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
EDO	C [auth A], D [auth A]	1,2-ETHANEDIOL C2 H6 O2 LYCAIKOWRPUZTN-UHFFFAOYSA-N
MG	B [auth A]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
CZO	A	L-PEPTIDE LINKING	C15 H21 N3 O6		GLY, TYR, GLY

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.50 Å
• R-Value Free:  0.229 (Depositor), 0.210 (DCC) 
• R-Value Work:  0.144 (Depositor), 0.140 (DCC) 
• R-Value Observed: 0.229 (Depositor) 

Space Group: P 2₁ 2₁ 2₁

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 51.046	α = 90
b = 62.121	β = 90
c = 70.619	γ = 90

Software Package:

Software Name	Purpose
HKL-2000	data collection
AMoRE	phasing
SHELXL-97	refinement
HKL-2000	data reduction
HKL-2000	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2009-04-21 
Deposition Author(s): Wood, T.I., Barondeau, D.P., Hitomi, C., Tainer, J.A., Getzoff, E.D.

Revision History  

• Version 1.0: 2009-04-21
  Type: Initial release
  
• Version 1.1: 2011-07-13
  Changes: Version format compliance
• Version 1.2: 2021-10-20
  Changes: Advisory, Database references, Derived calculations
• Version 2.0: 2023-11-15
  Changes: Atomic model, Data collection
• Version 2.1: 2024-10-30
  Changes: Structure summary