› 6nqn

X-ray diffraction
2.1Å resolution

Crystal structure of fast switching M159T mutant of fluorescent protein Dronpa (Dronpa2), Y63(3-BrY)

Released:
DOI: 10.2210/pdb6nqn/pdb
PDB entry 6nqn coloured by chain, front view.
PDB entry 6nqn coloured by chain, side view.
PDB entry 6nqn coloured by chain, top view.
Source organism: Echinophyllia sp. SC22
Primary publication:
Electrostatic control of photoisomerization pathways in proteins.
Romei MG, Lin CY, Mathews II, Boxer SG
Science 367 76-79 (2020)
PMID: 31896714

Function and Biology Details

Biochemical function:
Biological process:
Cellular component:
  • not assigned
Sequence domains:

Structure analysis Details

Assembly composition:
homo tetramer (preferred)
Assembly name:
PDBe Complex ID:
PDB-CPX-178341 (preferred)
Entry contents:
1 distinct polypeptide molecule
Macromolecule:
Fluorescent protein Dronpa Chains: A, B, C, D, E, F, G, H
Molecule details ›
Chains: A, B, C, D, E, F, G, H
Length: 255 amino acids
Theoretical weight: 29.04 KDa
Source organism: Echinophyllia sp. SC22
Expression system: Escherichia coli BL21(DE3)
UniProt:
  • Canonical: Q5TLG6 (Residues: 3-223; Coverage: 99%)
Gene name: Dronpa
Sequence domains: Green fluorescent protein

Ligands and Environments

No bound ligands
1 modified residue:
Ligand KZ4 8 x KZ4

Experiments and Validation Details

Entry percentile scores
X-ray source: SSRL BEAMLINE BL12-2
Spacegroup: P1
Unit cell:
a: 71.39Å b: 79.49Å c: 85.65Å
α: 89.92° β: 92.4° γ: 94.89°
R-values:
R R work R free
0.173 0.172 0.204
Expression system: Escherichia coli BL21(DE3)

Quick links

Citations

4 review citations

Photoswitchable Fluorescent Proteins: Mechanisms on Ultrafast Timescales.
Tang et al. (2022)
3 more

1 mention without citation

Electrostatic control of photoisomerization pathways in proteins.
Romei et al. (2020)