Potassium in PDB 4e6k: 2.0 A Resolution Structure of Pseudomonas Aeruginosa Bacterioferritin (Bfrb) in Complex with Bacterioferritin Associated Ferredoxin (Bfd)

The structure of 2.0 A Resolution Structure of Pseudomonas Aeruginosa Bacterioferritin (Bfrb) in Complex with Bacterioferritin Associated Ferredoxin (Bfd), PDB code: 4e6k was solved by S.Lovell, K.P.Battaile, H.Yao, Y.Wang, R.Kumar, A.Ruvinsky, I.Vasker, M.Rivera, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	47.73 / 2.00
Space group	P 4 21 2
Cell size a, b, c (Å), α, β, γ (°)	135.005, 135.005, 200.890, 90.00, 90.00, 90.00
R / Rfree (%)	15.2 / 18.3

The structure of 2.0 A Resolution Structure of Pseudomonas Aeruginosa Bacterioferritin (Bfrb) in Complex with Bacterioferritin Associated Ferredoxin (Bfd) also contains other interesting chemical elements:

Iron	(Fe)	12 atoms
Sodium	(Na)	6 atoms

The binding sites of Potassium atom in the 2.0 A Resolution Structure of Pseudomonas Aeruginosa Bacterioferritin (Bfrb) in Complex with Bacterioferritin Associated Ferredoxin (Bfd) (pdb code 4e6k). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 3 binding sites of Potassium where determined in the 2.0 A Resolution Structure of Pseudomonas Aeruginosa Bacterioferritin (Bfrb) in Complex with Bacterioferritin Associated Ferredoxin (Bfd), PDB code: 4e6k:
Jump to Potassium binding site number: 1; 2; 3;

Potassium binding site 1 out of 3 in the 2.0 A Resolution Structure of Pseudomonas Aeruginosa Bacterioferritin (Bfrb) in Complex with Bacterioferritin Associated Ferredoxin (Bfd)


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of 2.0 A Resolution Structure of Pseudomonas Aeruginosa Bacterioferritin (Bfrb) in Complex with Bacterioferritin Associated Ferredoxin (Bfd) within 5.0Å range: probe atom residue distance (Å) B Occ A:K201 b:14.9 occ:0.25 OE1 A:GLN151 2.8 14.1 1.0 OD1 A:ASN148 3.0 14.6 1.0 O A:HOH311 3.4 8.7 0.2 CD A:GLN151 3.8 13.9 1.0 CG A:ASN148 3.8 15.6 1.0 NE2 A:GLN151 4.0 16.1 1.0 ND2 A:ASN148 4.1 15.2 1.0 CB A:ASN148 4.9 13.5 1.0

Potassium binding site 2 out of 3 in the 2.0 A Resolution Structure of Pseudomonas Aeruginosa Bacterioferritin (Bfrb) in Complex with Bacterioferritin Associated Ferredoxin (Bfd)


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of 2.0 A Resolution Structure of Pseudomonas Aeruginosa Bacterioferritin (Bfrb) in Complex with Bacterioferritin Associated Ferredoxin (Bfd) within 5.0Å range: probe atom residue distance (Å) B Occ B:K201 b:17.4 occ:1.00 OE1 B:GLN151 2.8 13.7 1.0 OE1 E:GLN151 2.8 14.8 1.0 OE1 C:GLN151 2.9 16.8 1.0 OD1 E:ASN148 3.0 17.1 1.0 OD1 B:ASN148 3.0 15.4 1.0 OD1 C:ASN148 3.0 17.9 1.0 O C:HOH301 3.4 12.6 1.0 CD E:GLN151 3.7 18.5 1.0 CG E:ASN148 3.7 16.5 1.0 CD B:GLN151 3.8 15.0 1.0 CG C:ASN148 3.8 19.9 1.0 CG B:ASN148 3.8 16.9 1.0 CD C:GLN151 3.9 16.8 1.0 NE2 E:GLN151 3.9 15.7 1.0 NE2 B:GLN151 4.0 17.0 1.0 NE2 C:GLN151 4.1 18.8 1.0 ND2 E:ASN148 4.1 18.9 1.0 ND2 C:ASN148 4.2 20.9 1.0 ND2 B:ASN148 4.3 18.6 1.0 CB E:ASN148 4.8 13.7 1.0 CB C:ASN148 4.9 15.3 1.0 CB B:ASN148 4.9 16.8 1.0

Potassium binding site 3 out of 3 in the 2.0 A Resolution Structure of Pseudomonas Aeruginosa Bacterioferritin (Bfrb) in Complex with Bacterioferritin Associated Ferredoxin (Bfd)


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of 2.0 A Resolution Structure of Pseudomonas Aeruginosa Bacterioferritin (Bfrb) in Complex with Bacterioferritin Associated Ferredoxin (Bfd) within 5.0Å range: probe atom residue distance (Å) B Occ F:K201 b:13.7 occ:0.25 OE1 F:GLN151 2.9 12.9 1.0 OD1 F:ASN148 3.0 12.0 1.0 O F:HOH313 3.4 13.6 0.2 CG F:ASN148 3.8 17.9 1.0 CD F:GLN151 3.8 17.3 1.0 NE2 F:GLN151 4.0 13.1 1.0 ND2 F:ASN148 4.2 16.2 1.0 CB F:ASN148 4.9 12.0 1.0

H.Yao, Y.Wang, S.Lovell, R.Kumar, A.M.Ruvinsky, K.P.Battaile, I.A.Vakser, M.Rivera. The Structure of the Bfrb-Bfd Complex Reveals Protein-Protein Interactions Enabling Iron Release From Bacterioferritin. J.Am.Chem.Soc. V. 134 13470 2012.
ISSN: ISSN 0002-7863
PubMed: 22812654
DOI: 10.1021/JA305180N