Calcium in PDB 6a2w: Crystal Structure of Fucoxanthin Chlorophyll A/C Complex From Phaeodactylum Tricornutum

The structure of Crystal Structure of Fucoxanthin Chlorophyll A/C Complex From Phaeodactylum Tricornutum, PDB code: 6a2w was solved by W.Wang, L.J.Yu, T.Y.Kuang, J.R.Shen, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	19.98 / 1.80
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	47.749, 115.718, 141.261, 90.00, 90.00, 90.00
R / Rfree (%)	17.5 / 19.7

The structure of Crystal Structure of Fucoxanthin Chlorophyll A/C Complex From Phaeodactylum Tricornutum also contains other interesting chemical elements:

Magnesium

(Mg)

9 atoms

The binding sites of Calcium atom in the Crystal Structure of Fucoxanthin Chlorophyll A/C Complex From Phaeodactylum Tricornutum (pdb code 6a2w). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the Crystal Structure of Fucoxanthin Chlorophyll A/C Complex From Phaeodactylum Tricornutum, PDB code: 6a2w:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the Crystal Structure of Fucoxanthin Chlorophyll A/C Complex From Phaeodactylum Tricornutum


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Crystal Structure of Fucoxanthin Chlorophyll A/C Complex From Phaeodactylum Tricornutum within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca201 b:39.2 occ:1.00 O A:GLU72 2.3 38.5 1.0 O A:HOH554 2.3 39.8 1.0 O A:HOH562 2.4 41.8 1.0 O A:HOH540 2.4 40.5 1.0 OE2 A:GLU82 2.4 41.3 1.0 O A:HOH552 2.5 38.2 1.0 OE1 A:GLU82 2.5 43.8 1.0 CD A:GLU82 2.8 45.7 1.0 C A:GLU72 3.4 34.5 1.0 CB A:GLU72 4.0 41.4 1.0 CA A:GLU72 4.1 44.0 1.0 CG A:GLU82 4.3 39.9 1.0 CD A:PRO74 4.4 39.0 1.0 N A:ILE73 4.5 30.5 1.0 NZ A:LYS68 4.7 43.6 1.0 CG A:GLU72 4.7 48.9 1.0 CA A:ILE73 4.8 28.2 1.0 N A:PRO74 5.0 36.1 1.0

Calcium binding site 2 out of 2 in the Crystal Structure of Fucoxanthin Chlorophyll A/C Complex From Phaeodactylum Tricornutum


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Crystal Structure of Fucoxanthin Chlorophyll A/C Complex From Phaeodactylum Tricornutum within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca202 b:76.0 occ:1.00 O A:HOH531 2.3 55.6 1.0 O A:HOH503 2.3 47.2 1.0 O A:HOH572 2.5 70.9 1.0 OE2 A:GLU72 2.7 51.7 1.0 O A:HOH571 2.8 83.4 1.0 CD A:GLU72 3.5 49.8 1.0 OE1 A:GLU72 3.7 49.9 1.0 O A:HOH502 4.2 58.4 1.0 O A:GLY67 4.7 57.7 1.0 CG A:GLU72 4.8 48.9 1.0

W.Wang, L.J.Yu, C.Xu, T.Tomizaki, S.Zhao, Y.Umena, X.Chen, X.Qin, Y.Xin, M.Suga, G.Han, T.Kuang, J.R.Shen. Structural Basis For Blue-Green Light Harvesting and Energy Dissipation in Diatoms. Science V. 363 2019.
ISSN: ESSN 1095-9203
PubMed: 30733387
DOI: 10.1126/SCIENCE.AAV0365