Potassium in PDB 7akk: Structure of A Complement Factor-Receptor Complex

The structure of Structure of A Complement Factor-Receptor Complex, PDB code: 7akk was solved by F.J.Fernandez, J.Santos-Lopez, R.Martinez-Barricarte, J.Querol-Garcia, S.Navas-Yuste, M.Savko, W.E.Shepard, S.Rodriguez De Cordoba, M.C.Vega, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	53.78 / 3.40
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	111.29, 150.73, 111.3, 90, 92.8, 90
R / Rfree (%)	19.2 / 22.9

The structure of Structure of A Complement Factor-Receptor Complex also contains other interesting chemical elements:

Magnesium

(Mg)

2 atoms

The binding sites of Potassium atom in the Structure of A Complement Factor-Receptor Complex (pdb code 7akk). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Structure of A Complement Factor-Receptor Complex, PDB code: 7akk:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Structure of A Complement Factor-Receptor Complex


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Structure of A Complement Factor-Receptor Complex within 5.0Å range: probe atom residue distance (Å) B Occ A:K1601 b:71.1 occ:1.00 O A:ILE696 3.2 75.0 1.0 OG1 A:THR697 3.3 84.1 1.0 OD2 A:ASP729 3.7 77.7 1.0 O B:PRO208 3.9 79.8 1.0 CA B:SER209 4.2 77.3 1.0 OG A:SER695 4.4 90.5 1.0 C A:ILE696 4.4 72.3 1.0 O A:HOH1703 4.5 50.4 1.0 O B:SER209 4.5 80.7 1.0 CG A:ASP729 4.6 74.8 1.0 NH1 A:ARG731 4.6 77.8 1.0 CB B:SER209 4.6 75.0 1.0 CB A:THR697 4.7 77.1 1.0 OD1 A:ASP729 4.7 68.9 1.0 C B:SER209 4.8 80.1 1.0 C B:PRO208 4.9 81.1 1.0

Potassium binding site 2 out of 2 in the Structure of A Complement Factor-Receptor Complex


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Structure of A Complement Factor-Receptor Complex within 5.0Å range: probe atom residue distance (Å) B Occ C:K1602 b:71.8 occ:1.00 O C:PRO208 3.5 95.1 1.0 OG1 E:THR697 3.6 60.1 1.0 OD2 C:ASP577 3.7 85.1 1.0 O E:HOH1701 3.9 52.0 1.0 CD1 C:LEU238 4.1 78.5 1.0 OD2 E:ASP729 4.1 80.6 1.0 NH2 E:ARG731 4.4 85.9 1.0 CB C:LEU207 4.4 79.3 1.0 O E:ILE696 4.4 61.8 1.0 OG E:SER695 4.6 49.7 1.0 C C:PRO208 4.6 93.6 1.0 CD1 C:LEU207 4.7 71.5 1.0 CG C:ASP577 4.7 81.3 1.0 CB E:THR697 4.8 58.5 1.0 OD1 C:ASP577 4.8 85.1 1.0 O C:LEU207 4.9 91.1 1.0 CA C:SER209 4.9 89.4 1.0 CG E:ASP729 5.0 78.4 1.0

F.J.Fernandez, J.Santos-Lopez, R.Martinez-Barricarte, J.Querol-Garcia, H.Martin-Merinero, S.Navas-Yuste, M.Savko, W.E.Shepard, S.Rodriguez De Cordoba, M.C.Vega. The Crystal Structure of IC3B-CR3 Alpha I Reveals A Modular Recognition of the Main Opsonin IC3B By the CR3 Integrin Receptor Nat Commun V. 13 1955 2022.
ISSN: ESSN 2041-1723
DOI: 10.1038/S41467-022-29580-2