Calcium in PDB 6qph: Dunaliella Minimal Psi Complex

All present enzymatic activity of Dunaliella Minimal Psi Complex:
1.97.1.12;

The structure of Dunaliella Minimal Psi Complex, PDB code: 6qph was solved by D.Klaiman, I.Caspy, N.Nelson, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	48.95 / 3.40
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	158.881, 100.506, 191.040, 90.00, 91.73, 90.00
R / Rfree (%)	33.7 / 35.6

The structure of Dunaliella Minimal Psi Complex also contains other interesting chemical elements:

Magnesium	(Mg)	143 atoms
Arsenic	(As)	6 atoms
Iron	(Fe)	12 atoms

The binding sites of Calcium atom in the Dunaliella Minimal Psi Complex (pdb code 6qph). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total only one binding site of Calcium was determined in the Dunaliella Minimal Psi Complex, PDB code: 6qph:

Calcium binding site 1 out of 1 in the Dunaliella Minimal Psi Complex


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Dunaliella Minimal Psi Complex within 5.0Å range: probe atom residue distance (Å) B Occ B:Ca6000 b:97.7 occ:1.00 O B:ASN504 2.4 98.8 1.0 O B:LEU509 2.7 97.0 1.0 O B:ILE502 2.7 97.2 1.0 OD1 B:ASN507 3.1 0.6 1.0 C B:ILE502 3.5 98.0 1.0 C B:ASN504 3.6 99.3 1.0 C B:LEU509 3.8 97.1 1.0 O B:ALA501 3.8 0.7 1.0 O B:PHE510 3.9 94.4 1.0 O B:ASN507 4.0 99.5 1.0 N B:ASN504 4.1 99.6 1.0 CA B:ILE502 4.1 98.6 1.0 CG B:ASN507 4.3 0.9 1.0 CA B:ASN504 4.3 0.3 1.0 C B:PHE510 4.4 94.5 1.0 N B:LEU509 4.4 98.8 1.0 C B:ASN503 4.4 98.6 1.0 CA B:LEU509 4.4 98.4 1.0 CB B:LEU509 4.5 99.5 1.0 N B:ASN503 4.5 98.4 1.0 N B:ASN505 4.6 99.2 1.0 CE B:LYS470 4.6 94.1 1.0 CB B:ASN504 4.7 0.6 1.0 C B:ALA501 4.7 0.0 1.0 N B:PHE510 4.8 96.1 1.0 CA B:ASN503 4.8 98.0 1.0 CA B:ASN505 4.8 98.4 1.0 ND2 B:ASN507 4.8 0.5 1.0 CD2 B:LEU509 4.8 98.6 1.0 C B:ASN507 4.9 0.8 1.0 N B:ILE502 4.9 0.1 1.0 NZ B:LYS470 4.9 93.3 1.0 O B:ASN503 5.0 98.2 1.0 N B:LEU511 5.0 94.5 1.0 CA B:PHE510 5.0 94.8 1.0

A.Perez Boerema, D.Klaiman, I.Caspy, S.Netzer-El, A.Amunts, N.Nelson. Structure of A Minimal Photosystem I From A Green Alga To Be Published.