Chlorine in PDB 7e2u: Synechocystis GUN4 in Complex with Phytochrome

The structure of Synechocystis GUN4 in Complex with Phytochrome, PDB code: 7e2u was solved by L.Liu, J.Hu, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	41.18 / 1.70
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	32.522, 64.601, 106.892, 90, 90, 90
R / Rfree (%)	15.8 / 19.4

The binding sites of Chlorine atom in the Synechocystis GUN4 in Complex with Phytochrome (pdb code 7e2u). This binding sites where shown within 5.0 Angstroms radius around Chlorine atom.
In total only one binding site of Chlorine was determined in the Synechocystis GUN4 in Complex with Phytochrome, PDB code: 7e2u:

Chlorine binding site 1 out of 1 in the Synechocystis GUN4 in Complex with Phytochrome


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 1 of Synechocystis GUN4 in Complex with Phytochrome within 5.0Å range: probe atom residue distance (Å) B Occ A:Cl304 b:14.3 occ:1.00 O A:HOH626 3.2 11.9 1.0 NE A:ARG217 3.2 13.0 1.0 N A:PHE132 3.2 13.9 1.0 NH2 A:ARG217 3.3 12.4 1.0 CZ A:ARG217 3.7 14.7 1.0 CD2 A:PHE132 3.7 11.9 1.0 CB A:PHE132 3.9 12.2 1.0 CA A:TYR131 3.9 13.1 1.0 CG2 A:VAL218 4.0 12.1 1.0 CB A:ARG217 4.0 11.8 1.0 C A:TYR131 4.0 13.3 1.0 O A:LEU130 4.1 12.7 1.0 CA A:PHE132 4.1 11.4 1.0 CG A:PHE132 4.3 12.8 1.0 CD A:ARG217 4.3 13.5 1.0 N A:VAL218 4.6 10.2 1.0 O A:HOH458 4.7 25.6 1.0 CG A:ARG217 4.7 13.2 1.0 CE2 A:PHE132 4.8 13.3 1.0 CB A:TYR131 4.8 13.8 1.0 O A:ARG214 4.9 11.8 1.0 C A:LEU130 4.9 12.0 1.0 N A:TYR131 4.9 13.4 1.0 O A:HOH689 5.0 17.5 1.0

J.H.Hu, J.W.Chang, T.Xu, J.Wang, X.Wang, R.Lin, D.Duanmu, L.Liu. Structural Basis of Bilin Binding By the Chlorophyll Biosynthesis Regulator GUN4. Protein Sci. 2021.
ISSN: ESSN 1469-896X
PubMed: 34382282
DOI: 10.1002/PRO.4164