Chlorine in PDB 7e2t: Synechocystis GUN4 in Complex with Phycocyanobilin

The structure of Synechocystis GUN4 in Complex with Phycocyanobilin, PDB code: 7e2t 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)	30.95 / 1.10
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	32.465, 64.695, 106.521, 90, 90, 90
R / Rfree (%)	12.5 / 15.6

The binding sites of Chlorine atom in the Synechocystis GUN4 in Complex with Phycocyanobilin (pdb code 7e2t). 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 Phycocyanobilin, PDB code: 7e2t:

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


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 Phycocyanobilin within 5.0Å range: probe atom residue distance (Å) B Occ A:Cl301 b:17.4 occ:1.00 HE A:ARG217 2.5 20.5 1.0 HH21 A:ARG217 2.5 19.7 1.0 H A:PHE132 2.6 20.3 1.0 HD2 A:PHE132 2.8 22.4 1.0 HB3 A:PHE132 3.0 20.3 1.0 HG23 A:VAL218 3.1 19.9 1.0 HB2 A:ARG217 3.1 19.8 1.0 HA A:TYR131 3.2 23.2 1.0 O A:HOH616 3.2 18.1 1.0 NE A:ARG217 3.2 17.0 1.0 N A:PHE132 3.2 16.8 1.0 NH2 A:ARG217 3.3 16.3 1.0 CD2 A:PHE132 3.7 18.6 1.0 CZ A:ARG217 3.7 16.9 1.0 CB A:PHE132 3.8 16.9 1.0 CB A:ARG217 3.9 16.4 1.0 CA A:TYR131 3.9 19.2 1.0 HB3 A:ARG217 3.9 19.8 1.0 HH22 A:ARG217 3.9 19.7 1.0 CG2 A:VAL218 4.0 16.5 1.0 C A:TYR131 4.0 16.9 1.0 CA A:PHE132 4.1 17.4 1.0 O A:LEU130 4.2 20.6 1.0 H A:VAL218 4.2 18.5 1.0 HD1 A:TYR131 4.2 25.2 1.0 CG A:PHE132 4.2 18.2 1.0 HG22 A:VAL218 4.3 19.9 1.0 CD A:ARG217 4.3 18.2 1.0 HG21 A:VAL218 4.3 19.9 1.0 HA A:PHE132 4.4 20.9 1.0 HD2 A:ARG217 4.4 21.9 1.0 HB3 A:TYR131 4.5 22.9 1.0 N A:VAL218 4.5 15.3 1.0 O A:HOH444 4.6 43.0 1.0 HB2 A:PHE132 4.6 20.3 1.0 CG A:ARG217 4.7 18.1 1.0 CE2 A:PHE132 4.8 19.4 1.0 CB A:TYR131 4.8 19.0 1.0 HE2 A:PHE132 4.8 23.4 1.0 O A:ARG214 4.9 16.9 1.0 HB3 A:ARG214 4.9 21.6 1.0 C A:ARG217 4.9 15.7 1.0 C A:LEU130 5.0 17.8 1.0 N A:TYR131 5.0 17.9 1.0 NH1 A:ARG217 5.0 16.3 1.0 CA A:ARG217 5.0 16.1 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