Cadmium in PDB 3auw: Cytoplasmic Domain of Inward Rectifier Potassium Channel KIR3.2 in Complex with Cadmium

The structure of Cytoplasmic Domain of Inward Rectifier Potassium Channel KIR3.2 in Complex with Cadmium, PDB code: 3auw was solved by A.Inanobe, Y.Kurachi, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	30.00 / 3.56
Space group	P 4 21 2
Cell size a, b, c (Å), α, β, γ (°)	100.808, 100.808, 105.812, 90.00, 90.00, 90.00
R / Rfree (%)	28.1 / 33.1

The structure of Cytoplasmic Domain of Inward Rectifier Potassium Channel KIR3.2 in Complex with Cadmium also contains other interesting chemical elements:

Magnesium

(Mg)

2 atoms

The binding sites of Cadmium atom in the Cytoplasmic Domain of Inward Rectifier Potassium Channel KIR3.2 in Complex with Cadmium (pdb code 3auw). This binding sites where shown within 5.0 Angstroms radius around Cadmium atom.
In total 2 binding sites of Cadmium where determined in the Cytoplasmic Domain of Inward Rectifier Potassium Channel KIR3.2 in Complex with Cadmium, PDB code: 3auw:
Jump to Cadmium binding site number: 1; 2;

Cadmium binding site 1 out of 2 in the Cytoplasmic Domain of Inward Rectifier Potassium Channel KIR3.2 in Complex with Cadmium


Mono view


Stereo pair view

A full contact list of Cadmium with other atoms in the Cd binding site number 1 of Cytoplasmic Domain of Inward Rectifier Potassium Channel KIR3.2 in Complex with Cadmium within 5.0Å range: probe atom residue distance (Å) B Occ A:Cd1 b:39.9 occ:1.00 SG A:CYS65 1.9 36.5 1.0 NE2 A:HIS68 2.3 38.9 1.0 CE1 A:HIS68 3.0 37.9 1.0 O A:HOH2 3.1 37.4 1.0 O B:HOH383 3.2 29.6 1.0 CD2 A:HIS68 3.5 41.6 1.0 O B:VAL276 3.5 32.6 1.0 CB A:CYS65 3.5 35.2 1.0 ND1 A:HIS68 4.1 39.8 1.0 O A:ASN66 4.2 38.1 1.0 N A:ASN66 4.4 36.6 1.0 CG A:HIS68 4.4 42.6 1.0 C A:ASN66 4.4 39.1 1.0 C B:VAL276 4.5 31.8 1.0 CA A:CYS65 4.6 35.5 1.0 C A:CYS65 4.6 36.5 1.0 CA A:VAL67 4.6 43.6 1.0 CB B:VAL276 4.7 32.2 1.0 N A:VAL67 4.9 41.6 1.0 CA B:VAL276 5.0 31.6 1.0 CA A:ASN66 5.0 37.9 1.0

Cadmium binding site 2 out of 2 in the Cytoplasmic Domain of Inward Rectifier Potassium Channel KIR3.2 in Complex with Cadmium


Mono view


Stereo pair view

A full contact list of Cadmium with other atoms in the Cd binding site number 2 of Cytoplasmic Domain of Inward Rectifier Potassium Channel KIR3.2 in Complex with Cadmium within 5.0Å range: probe atom residue distance (Å) B Occ C:Cd2 b:46.7 occ:1.00 SG C:CYS65 1.9 40.2 1.0 NE2 C:HIS68 2.4 44.6 1.0 O C:HOH3 2.9 36.8 1.0 O D:HOH4 3.1 31.5 1.0 CD2 C:HIS68 3.1 46.4 1.0 CB C:CYS65 3.3 38.6 1.0 CE1 C:HIS68 3.6 44.2 1.0 O C:ASN66 3.6 43.3 1.0 O D:VAL276 3.7 34.5 1.0 N C:ASN66 4.3 41.4 1.0 C C:ASN66 4.3 43.9 1.0 CB D:VAL276 4.3 33.6 1.0 CG C:HIS68 4.4 47.0 1.0 CA C:CYS65 4.5 39.2 1.0 C C:CYS65 4.5 40.6 1.0 ND1 C:HIS68 4.6 45.6 1.0 C D:VAL276 4.6 33.4 1.0 CA D:VAL276 4.8 32.9 1.0 CA C:ASN66 4.9 43.0 1.0

A.Inanobe, T.Matsuura, A.Nakagawa, Y.Kurachi. Inverse Agonist-Like Action of Cadmium on G-Protein-Gated Inward-Rectifier K(+) Channels Biochem.Biophys.Res.Commun. V. 407 366 2011.
ISSN: ISSN 0006-291X
PubMed: 21396912
DOI: 10.1016/J.BBRC.2011.03.025