Calcium in PDB 5kai: NH3-Bound Rt Xfel Structure of Photosystem II 500 Ms After the 2ND Illumination (2F) at 2.8 A Resolution

All present enzymatic activity of NH3-Bound Rt Xfel Structure of Photosystem II 500 Ms After the 2ND Illumination (2F) at 2.8 A Resolution:
1.10.3.9;

The structure of NH3-Bound Rt Xfel Structure of Photosystem II 500 Ms After the 2ND Illumination (2F) at 2.8 A Resolution, PDB code: 5kai was solved by I.D.Young, M.Ibrahim, R.Chatterjee, S.Gul, S.Koroidov, A.S.Brewster, R.Tran, R.Alonso-Mori, F.Fuller, T.Kroll, T.Michels-Clark, H.Laksmono, R.G.Sierra, C.A.Stan, C.Saracini, M.A.Bean, I.Seuffert, D.Sokaras, T.-C.Weng, M.S.Hunter, A.Aquila, J.E.Koglin, J.Robinson, M.Liang, S.Boutet, A.Y.Lyubimov, M.Uervirojnangkoorn, N.W.Moriarty, D.Liebschner, P.V.Afonine, D.G.Waterman, G.Evans, H.Dobbek, W.I.Weis, A.T.Brunger, P.H.Zwart, P.D.Adams, A.Zouni, J.Messinger, U.Bergmann, N.K.Sauter, J.Kern, V.K.Yachandra, J.Yano, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	43.57 / 2.80
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	117.911, 224.268, 330.996, 90.00, 90.00, 90.00
R / Rfree (%)	25 / 30

The structure of NH3-Bound Rt Xfel Structure of Photosystem II 500 Ms After the 2ND Illumination (2F) at 2.8 A Resolution also contains other interesting chemical elements:

Magnesium	(Mg)	70 atoms
Manganese	(Mn)	8 atoms
Iron	(Fe)	6 atoms
Chlorine	(Cl)	4 atoms

The binding sites of Calcium atom in the NH3-Bound Rt Xfel Structure of Photosystem II 500 Ms After the 2ND Illumination (2F) at 2.8 A Resolution (pdb code 5kai). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the NH3-Bound Rt Xfel Structure of Photosystem II 500 Ms After the 2ND Illumination (2F) at 2.8 A Resolution, PDB code: 5kai:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the NH3-Bound Rt Xfel Structure of Photosystem II 500 Ms After the 2ND Illumination (2F) at 2.8 A Resolution


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of NH3-Bound Rt Xfel Structure of Photosystem II 500 Ms After the 2ND Illumination (2F) at 2.8 A Resolution within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca601 b:42.4 occ:1.00 CA1 A:OEX601 0.0 42.4 1.0 OD1 A:ASP170 2.3 54.0 1.0 O A:ALA344 2.4 55.8 1.0 O5 A:OEX601 2.5 56.4 1.0 O A:HOH703 2.6 41.1 1.0 O1 A:OEX601 2.6 56.5 1.0 O2 A:OEX601 2.7 48.5 1.0 OE1 A:GLU189 3.1 47.5 1.0 MN2 A:OEX601 3.3 51.3 1.0 C A:ALA344 3.3 47.6 1.0 OE2 A:GLU189 3.4 49.8 1.0 CG A:ASP170 3.4 50.0 1.0 MN3 A:OEX601 3.4 59.5 1.0 MN1 A:OEX601 3.5 54.3 1.0 OXT A:ALA344 3.5 48.8 1.0 CD A:GLU189 3.6 47.3 1.0 MN4 A:OEX601 3.8 60.4 1.0 O4 A:OEX601 3.8 52.8 1.0 OD2 A:ASP170 3.9 52.0 1.0 O3 A:OEX601 4.0 56.4 1.0 O A:HOH707 4.2 47.7 1.0 OE1 A:GLN165 4.4 44.4 1.0 NH1 C:ARG357 4.5 40.7 1.0 CB A:ASP170 4.5 44.1 1.0 OH A:TYR161 4.6 39.4 1.0 CA A:ALA344 4.7 45.6 1.0 O A:HOH705 4.9 40.4 1.0 OE2 C:GLU354 4.9 55.9 1.0 OD2 A:ASP342 4.9 50.2 1.0 O A:HOH710 4.9 47.8 1.0 OE1 C:GLU354 5.0 51.0 1.0

Calcium binding site 2 out of 2 in the NH3-Bound Rt Xfel Structure of Photosystem II 500 Ms After the 2ND Illumination (2F) at 2.8 A Resolution


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of NH3-Bound Rt Xfel Structure of Photosystem II 500 Ms After the 2ND Illumination (2F) at 2.8 A Resolution within 5.0Å range: probe atom residue distance (Å) B Occ a:Ca702 b:47.9 occ:1.00 CA1 a:OEX702 0.0 47.9 1.0 OD1 a:ASP170 2.3 56.5 1.0 O a:ALA344 2.4 58.6 1.0 O5 a:OEX702 2.5 52.6 1.0 O1 a:OEX702 2.6 60.2 1.0 O2 a:OEX702 2.7 53.0 1.0 O a:HOH808 2.9 49.7 1.0 OE1 a:GLU189 3.1 55.3 1.0 CG a:ASP170 3.2 49.1 1.0 MN2 a:OEX702 3.3 59.4 1.0 OD2 a:ASP170 3.3 54.2 1.0 C a:ALA344 3.3 51.8 1.0 MN3 a:OEX702 3.4 51.0 1.0 OXT a:ALA344 3.5 50.5 1.0 MN1 a:OEX702 3.5 48.3 1.0 MN4 a:OEX702 3.8 56.0 1.0 O4 a:OEX702 3.8 44.7 1.0 O3 a:OEX702 4.0 58.2 1.0 CD a:GLU189 4.0 46.9 1.0 OE2 a:GLU189 4.3 53.5 1.0 CB a:ASP170 4.5 44.2 1.0 NH1 c:ARG357 4.5 35.4 1.0 OH a:TYR161 4.7 41.7 1.0 OE1 a:GLN165 4.7 54.9 1.0 CA a:ALA344 4.8 46.9 1.0 NH2 c:ARG357 4.8 45.0 1.0 OE2 c:GLU354 5.0 52.5 1.0

I.D.Young, M.Ibrahim, R.Chatterjee, S.Gul, F.D.Fuller, S.Koroidov, A.S.Brewster, R.Tran, R.Alonso-Mori, T.Kroll, T.Michels-Clark, H.Laksmono, R.G.Sierra, C.A.Stan, R.Hussein, M.Zhang, L.Douthit, M.Kubin, C.De Lichtenberg, L.Vo Pham, H.Nilsson, M.H.Cheah, D.Shevela, C.Saracini, M.A.Bean, I.Seuffert, D.Sokaras, T.C.Weng, E.Pastor, C.Weninger, T.Fransson, L.Lassalle, P.Brauer, P.Aller, P.T.Docker, B.Andi, A.M.Orville, J.M.Glownia, S.Nelson, M.Sikorski, D.Zhu, M.S.Hunter, T.J.Lane, A.Aquila, J.E.Koglin, J.Robinson, M.Liang, S.Boutet, A.Y.Lyubimov, M.Uervirojnangkoorn, N.W.Moriarty, D.Liebschner, P.V.Afonine, D.G.Waterman, G.Evans, P.Wernet, H.Dobbek, W.I.Weis, A.T.Brunger, P.H.Zwart, P.D.Adams, A.Zouni, J.Messinger, U.Bergmann, N.K.Sauter, J.Kern, V.K.Yachandra, J.Yano. Structure of Photosystem II and Substrate Binding at Room Temperature. Nature V. 540 453 2016.
ISSN: ESSN 1476-4687
PubMed: 27871088
DOI: 10.1038/NATURE20161