Calcium in PDB 7pi0: Unstacked Compact Dunaliella Psii

All present enzymatic activity of Unstacked Compact Dunaliella Psii:
1.10.3.9;

The structure of Unstacked Compact Dunaliella Psii also contains other interesting chemical elements:

Iron	(Fe)	4 atoms
Magnesium	(Mg)	202 atoms
Manganese	(Mn)	8 atoms
Sodium	(Na)	2 atoms
Chlorine	(Cl)	4 atoms

The binding sites of Calcium atom in the Unstacked Compact Dunaliella Psii (pdb code 7pi0). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the Unstacked Compact Dunaliella Psii, PDB code: 7pi0:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the Unstacked Compact Dunaliella Psii


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Unstacked Compact Dunaliella Psii within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca401 b:73.7 occ:1.00 CA1 A:OEX401 0.0 73.7 1.0 O1 A:OEX401 2.4 73.7 1.0 O2 A:OEX401 2.5 73.7 1.0 O5 A:OEX401 2.8 73.7 1.0 OD1 A:ASP170 3.2 38.4 1.0 OE1 A:GLU189 3.2 37.9 1.0 MN2 A:OEX401 3.3 73.7 1.0 MN3 A:OEX401 3.4 73.7 1.0 MN1 A:OEX401 3.5 73.7 1.0 CG A:ASP170 3.7 38.4 1.0 MN4 A:OEX401 3.8 73.7 1.0 OE2 A:GLU189 3.8 37.9 1.0 OXT A:ALA344 3.9 54.8 1.0 OD2 A:ASP170 3.9 38.4 1.0 O3 A:OEX401 3.9 73.7 1.0 CD A:GLU189 3.9 37.9 1.0 OE1 A:GLN165 4.0 31.2 1.0 O A:ALA344 4.0 54.8 1.0 O4 A:OEX401 4.1 73.7 1.0 NH1 C:ARG345 4.2 39.3 1.0 C A:ALA344 4.4 54.8 1.0 NH2 C:ARG345 4.5 39.3 1.0 O A:HOH1024 4.6 36.4 1.0 OH A:TYR161 4.7 29.3 1.0 CZ C:ARG345 4.8 39.3 1.0 CD A:GLN165 4.8 31.2 1.0 CB A:ASP170 4.8 38.4 1.0 CB A:GLN165 4.8 31.2 1.0 CG A:GLN165 4.9 31.2 1.0

Calcium binding site 2 out of 2 in the Unstacked Compact Dunaliella Psii


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Unstacked Compact Dunaliella Psii within 5.0Å range: probe atom residue distance (Å) B Occ a:Ca401 b:69.8 occ:1.00 CA1 a:OEX401 0.0 69.8 1.0 O1 a:OEX401 2.4 69.8 1.0 O2 a:OEX401 2.5 69.8 1.0 O5 a:OEX401 2.8 69.8 1.0 OD1 a:ASP170 3.2 30.5 1.0 OE1 a:GLU189 3.2 32.9 1.0 O a:HOH1082 3.2 42.6 1.0 MN2 a:OEX401 3.3 69.8 1.0 O a:HOH1070 3.3 37.9 1.0 OD2 a:ASP170 3.3 30.5 1.0 MN3 a:OEX401 3.4 69.8 1.0 MN1 a:OEX401 3.5 69.8 1.0 CG a:ASP170 3.5 30.5 1.0 MN4 a:OEX401 3.8 69.8 1.0 OE1 a:GLN165 3.8 27.2 1.0 O3 a:OEX401 3.9 69.8 1.0 CD a:GLU189 4.0 32.9 1.0 O a:ALA344 4.1 53.8 1.0 O4 a:OEX401 4.1 69.8 1.0 OE2 a:GLU189 4.1 32.9 1.0 OXT a:ALA344 4.3 53.8 1.0 O a:HOH1027 4.5 35.9 1.0 OH a:TYR161 4.5 21.9 1.0 NH2 c:ARG345 4.5 37.9 1.0 NH1 c:ARG345 4.5 37.9 1.0 C a:ALA344 4.7 53.8 1.0 CB a:ASP170 4.7 30.5 1.0 CD a:GLN165 4.7 27.2 1.0 CG a:GLN165 4.9 27.2 1.0 CZ c:ARG345 4.9 37.9 1.0

I.Caspy, M.Fadeeva, Y.Mazor, M.Nelson. Structure of Dunaliella Photosystem II Reveals Conformational Flexibility of Stacked and Unstacked Supercomplexes To Be Published.