The 2.0 ångströms crystal structure of a pocilloporin at pH 3.5: the structural basis for the linkage between color transition and halide binding

Structure

x-ray diffraction · 1 distinct chain · 5% helix, 57% strand (DSSP).

Ligands and binding sites

• CRQ · [2-(3-carbamoyl-1-imino-propyl)-4-(4-hydroxy-benzylidene)-5-oxo-4,5-dihydro-imidazol-1-yl]-acetic acid · ligand · chains A
• IOD · Iodide ion · ion · 4 copies · chains A
• CL · Chloride ion · ion · 2 copies · chains A
• ACY · Acetic acid · additive · 5 copies · chains A

Binding sites are the residues within 4.5 Å of a ligand's heavy atoms.

Pockets

2 pockets found on a 1 Å grid, 1 with a druggability of 0.5 or more.

Modifications

Observed in the structure: 2 cofactor (chromophore).

Compared structures

• 2ARL · The 2.0 angstroms crystal structure of a pocilloporin at pH 3.5: the structural basis for… · the same entry in another collection · chain A against A, TM-score 1.00
• P83690 · AlphaFold monomer V2.0 prediction for GFP-like non-fluorescent chromoprotein (P83690) · a predicted model of the same protein · chain A against A, TM-score 1.00

Analyse

• Open in the research workbench: secondary structure, accessibility, pockets, interfaces, conservation, variants, modifications, peptides and crosslinks on the 3D structure
• Every structure of UniProt P83690
• Elsewhere: RCSB PDB 2ARL · PDBe 2ARL · UniProt P83690