Sodium in PDB 2x21: Structure of Peridinin-Chlorophyll-Protein Reconstituted with Bchl-A

The structure of Structure of Peridinin-Chlorophyll-Protein Reconstituted with Bchl-A, PDB code: 2x21 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)	43.01 / 1.75
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	68.490, 81.810, 74.980, 90.00, 90.00, 90.00
R / Rfree (%)	14.6 / 18.6

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

Magnesium	(Mg)	1 atom
Potassium	(K)	4 atoms
Cadmium	(Cd)	8 atoms
Chlorine	(Cl)	7 atoms

The binding sites of Sodium atom in the Structure of Peridinin-Chlorophyll-Protein Reconstituted with Bchl-A (pdb code 2x21). This binding sites where shown within 5.0 Angstroms radius around Sodium atom.
In total only one binding site of Sodium was determined in the Structure of Peridinin-Chlorophyll-Protein Reconstituted with Bchl-A, PDB code: 2x21:

Sodium binding site 1 out of 1 in the Structure of Peridinin-Chlorophyll-Protein Reconstituted with Bchl-A


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 1 of Structure of Peridinin-Chlorophyll-Protein Reconstituted with Bchl-A within 5.0Å range: probe atom residue distance (Å) B Occ M:Na1169 b:26.2 occ:1.00 CL M:CL1164 1.7 44.1 1.0 O M:HOH2114 2.0 28.7 1.0 OD2 M:ASP55 2.2 27.8 1.0 OD1 M:ASP55 2.8 17.1 1.0 CG M:ASP55 2.8 17.0 1.0 O M:HOH2116 3.6 37.2 1.0 CD M:LYS57 4.0 36.1 1.0 CB M:LYS57 4.2 14.5 1.0 CB M:ASP55 4.3 10.8 1.0 CG M:LYS57 4.4 23.9 1.0 O M:HOH2055 4.4 33.4 1.0 O M:HOH2115 4.7 39.2 1.0 CE M:LYS57 4.8 40.8 1.0 NZ M:LYS57 4.9 49.9 1.0 N M:LYS57 4.9 10.9 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