Samarium in PDB 2x6c: Potassium Channel From Magnetospirillum Magnetotacticum

The structure of Potassium Channel From Magnetospirillum Magnetotacticum, PDB code: 2x6c was solved by O.B.Clarke, A.T.Caputo, A.P.Hill, J.I.Vandenberg, B.J.Smith, J.M.Gulbis, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	41.983 / 2.70
Space group	P 4 21 2
Cell size a, b, c (Å), α, β, γ (°)	106.518, 106.518, 88.854, 90.00, 90.00, 90.00
R / Rfree (%)	21.87 / 26.09

The structure of Potassium Channel From Magnetospirillum Magnetotacticum also contains other interesting chemical elements:

Potassium	(K)	10 atoms
Chlorine	(Cl)	1 atom

The binding sites of Samarium atom in the Potassium Channel From Magnetospirillum Magnetotacticum (pdb code 2x6c). This binding sites where shown within 5.0 Angstroms radius around Samarium atom.
In total 4 binding sites of Samarium where determined in the Potassium Channel From Magnetospirillum Magnetotacticum, PDB code: 2x6c:
Jump to Samarium binding site number: 1; 2; 3; 4;

Samarium binding site 1 out of 4 in the Potassium Channel From Magnetospirillum Magnetotacticum


Mono view


Stereo pair view

A full contact list of Samarium with other atoms in the Sm binding site number 1 of Potassium Channel From Magnetospirillum Magnetotacticum within 5.0Å range: probe atom residue distance (Å) B Occ A:Sm1301 b:0.5 occ:0.92 OE2 A:GLU173 3.1 92.4 1.0 OE1 A:GLU173 3.4 0.2 1.0 CD A:GLU173 3.7 94.1 1.0

Samarium binding site 2 out of 4 in the Potassium Channel From Magnetospirillum Magnetotacticum


Mono view


Stereo pair view

A full contact list of Samarium with other atoms in the Sm binding site number 2 of Potassium Channel From Magnetospirillum Magnetotacticum within 5.0Å range: probe atom residue distance (Å) B Occ A:Sm1302 b:0.4 occ:0.44 O A:HOH2020 2.9 83.9 1.0 OD2 A:ASP175 3.3 85.0 1.0 OG1 A:THR244 3.5 55.8 1.0 CG A:ASP175 3.9 75.2 1.0 NH2 A:ARG204 4.1 0.8 1.0 OD1 A:ASP175 4.2 76.8 1.0 CB A:THR244 4.5 48.7 1.0 NH1 A:ARG204 4.7 0.7 1.0 CZ A:ARG204 4.8 0.2 1.0 CB A:ASP175 4.9 65.7 1.0

Samarium binding site 3 out of 4 in the Potassium Channel From Magnetospirillum Magnetotacticum


Mono view


Stereo pair view

A full contact list of Samarium with other atoms in the Sm binding site number 3 of Potassium Channel From Magnetospirillum Magnetotacticum within 5.0Å range: probe atom residue distance (Å) B Occ A:Sm1303 b:0.4 occ:1.00 O A:HOH2007 3.0 69.5 1.0 O A:HOH2008 3.1 71.9 1.0 O A:HOH2005 3.1 83.0 1.0 CB A:ASP40 3.9 0.9 1.0 CB A:HIS37 4.7 0.1 1.0

Samarium binding site 4 out of 4 in the Potassium Channel From Magnetospirillum Magnetotacticum


Mono view


Stereo pair view

A full contact list of Samarium with other atoms in the Sm binding site number 4 of Potassium Channel From Magnetospirillum Magnetotacticum within 5.0Å range: probe atom residue distance (Å) B Occ A:Sm1304 b:0.7 occ:1.00 CB A:ASP229 3.8 80.3 1.0 N A:GLU230 4.2 78.6 1.0 CG A:ASP229 4.3 94.7 1.0 OD2 A:ASP229 4.4 99.6 1.0 CB A:GLU230 4.5 82.7 1.0 CA A:ASP229 4.8 72.5 1.0 CA A:GLU230 4.8 81.3 1.0 C A:ASP229 4.8 73.8 1.0

O.B.Clarke, A.T.Caputo, A.P.Hill, J.I.Vandenberg, B.J.Smith, J.M.Gulbis. Domain Reorientation and Rotation of An Intracellular Assembly Regulate Conduction in Kir Potassium Channels. Cell(Cambridge,Mass.) V. 141 1018 2010.
ISSN: ISSN 0092-8674
PubMed: 20564790
DOI: 10.1016/J.CELL.2010.05.003