Chlorine in PDB 2x20: Structure of Peridinin-Chlorophyll-Protein Reconstituted with Chl-B

The structure of Structure of Peridinin-Chlorophyll-Protein Reconstituted with Chl-B, PDB code: 2x20 was solved by T.Schulte, R.G.Hiller, E.Hofmann, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	43.15 / 1.95
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	68.570, 82.000, 75.410, 90.00, 90.00, 90.00
R / Rfree (%)	15.5 / 19.6

The structure of Structure of Peridinin-Chlorophyll-Protein Reconstituted with Chl-B also contains other interesting chemical elements:

Magnesium	(Mg)	1 atom
Potassium	(K)	1 atom
Cadmium	(Cd)	8 atoms
Sodium	(Na)	1 atom

The binding sites of Chlorine atom in the Structure of Peridinin-Chlorophyll-Protein Reconstituted with Chl-B (pdb code 2x20). This binding sites where shown within 5.0 Angstroms radius around Chlorine atom.
In total 3 binding sites of Chlorine where determined in the Structure of Peridinin-Chlorophyll-Protein Reconstituted with Chl-B, PDB code: 2x20:
Jump to Chlorine binding site number: 1; 2; 3;

Chlorine binding site 1 out of 3 in the Structure of Peridinin-Chlorophyll-Protein Reconstituted with Chl-B


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 1 of Structure of Peridinin-Chlorophyll-Protein Reconstituted with Chl-B within 5.0Å range: probe atom residue distance (Å) B Occ M:Cl1157 b:9.5 occ:0.90 CD M:CD1152 2.4 9.3 0.9 O M:HOH2008 3.6 11.2 1.0 CB M:ALA0 3.7 9.4 1.0 O M:HOH2021 3.7 29.6 1.0 O M:HOH2022 3.7 8.1 1.0 OD1 M:ASP5 3.8 4.8 1.0 CG M:ASP5 4.7 8.4 1.0 OD2 M:ASP5 4.8 9.8 1.0

Chlorine binding site 2 out of 3 in the Structure of Peridinin-Chlorophyll-Protein Reconstituted with Chl-B


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 2 of Structure of Peridinin-Chlorophyll-Protein Reconstituted with Chl-B within 5.0Å range: probe atom residue distance (Å) B Occ M:Cl1158 b:34.3 occ:1.00 CD M:CD1155 2.4 16.6 0.4 OE1 M:GLU39 3.1 28.2 1.0 N M:LEU38 3.3 8.2 1.0 N M:PRO37 3.5 9.9 1.0 C M:GLN36 3.5 11.2 1.0 O M:HOH2072 3.5 30.4 1.0 CG M:LEU38 3.6 15.1 1.0 CA M:GLN36 3.6 13.2 1.0 CB M:LEU38 3.7 12.1 1.0 CD M:PRO37 3.7 10.2 1.0 CD1 M:LEU38 3.9 20.2 1.0 CB M:GLN36 3.9 13.1 1.0 CA M:LEU38 4.0 10.5 1.0 O M:GLN36 4.0 12.1 1.0 O M:HOH2073 4.1 28.2 1.0 CG M:PRO37 4.2 12.6 1.0 CD M:GLU39 4.2 24.7 1.0 C M:PRO37 4.3 9.4 1.0 N M:GLU39 4.3 9.7 1.0 CA M:PRO37 4.4 9.3 1.0 OE2 M:GLU39 4.7 31.4 1.0 C M:LEU38 4.8 10.3 1.0 CG M:GLN36 4.9 15.8 1.0 CB M:PRO37 4.9 8.4 1.0 CD2 M:LEU38 5.0 17.5 1.0

Chlorine binding site 3 out of 3 in the Structure of Peridinin-Chlorophyll-Protein Reconstituted with Chl-B


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 3 of Structure of Peridinin-Chlorophyll-Protein Reconstituted with Chl-B within 5.0Å range: probe atom residue distance (Å) B Occ M:Cl1159 b:8.2 occ:0.50 CD M:CD1154 2.0 7.0 0.5 CD M:CD1154 2.8 10.3 0.5 OD2 M:ASP116 3.3 9.3 1.0 O M:HOH2149 3.4 37.2 1.0 OD1 M:ASP116 3.7 6.6 1.0 CG M:ASP116 3.7 9.3 1.0 CD M:LYS118 3.8 19.4 1.0 NZ M:LYS118 3.9 32.9 1.0 CM2 M:PID612 4.0 22.0 1.0 C4 M:PID612 4.1 27.9 1.0 CE M:LYS118 4.2 24.6 1.0 C3 M:PID612 4.6 32.3 1.0 CG M:LYS118 4.7 14.4 1.0 C5 M:PID612 4.7 26.5 1.0 O2 M:PID612 4.8 38.4 1.0 CB M:ASP116 4.9 8.2 1.0 CB M:LYS118 4.9 9.9 1.0

T.Schulte, R.G.Hiller, E.Hofmann. X-Ray Structures of the Peridinin-Chlorophyll-Protein Reconstituted with Different Chlorophylls. Febs Lett. V. 584 973 2010.
ISSN: ISSN 0014-5793
PubMed: 20102711
DOI: 10.1016/J.FEBSLET.2010.01.041