Copper in PDB 6d42: Crystal Structure of the KCA3.1 C-Terminal Four-Helix Bundle (with Copper)

The structure of Crystal Structure of the KCA3.1 C-Terminal Four-Helix Bundle (with Copper), PDB code: 6d42 was solved by S.R.Hubbard, T.Ji, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	27.06 / 1.75
Space group	P 4 21 2
Cell size a, b, c (Å), α, β, γ (°)	37.590, 37.590, 116.946, 90.00, 90.00, 90.00
R / Rfree (%)	25.2 / 32.3

The binding sites of Copper atom in the Crystal Structure of the KCA3.1 C-Terminal Four-Helix Bundle (with Copper) (pdb code 6d42). This binding sites where shown within 5.0 Angstroms radius around Copper atom.
In total 2 binding sites of Copper where determined in the Crystal Structure of the KCA3.1 C-Terminal Four-Helix Bundle (with Copper), PDB code: 6d42:
Jump to Copper binding site number: 1; 2;

Copper binding site 1 out of 2 in the Crystal Structure of the KCA3.1 C-Terminal Four-Helix Bundle (with Copper)


Mono view


Stereo pair view

A full contact list of Copper with other atoms in the Cu binding site number 1 of Crystal Structure of the KCA3.1 C-Terminal Four-Helix Bundle (with Copper) within 5.0Å range: probe atom residue distance (Å) B Occ A:Cu501 b:29.1 occ:0.25 NE2 A:HIS389 2.1 35.2 1.0 O A:HOH623 2.4 15.5 0.2 CD2 A:HIS389 3.1 29.9 1.0 CE1 A:HIS389 3.1 33.4 1.0 ND1 A:HIS389 4.2 31.3 1.0 CG A:HIS389 4.2 38.2 1.0

Copper binding site 2 out of 2 in the Crystal Structure of the KCA3.1 C-Terminal Four-Helix Bundle (with Copper)


Mono view


Stereo pair view

A full contact list of Copper with other atoms in the Cu binding site number 2 of Crystal Structure of the KCA3.1 C-Terminal Four-Helix Bundle (with Copper) within 5.0Å range: probe atom residue distance (Å) B Occ B:Cu501 b:29.9 occ:0.25 NE2 B:HIS389 2.0 31.6 1.0 O B:HOH610 2.4 16.4 0.2 CE1 B:HIS389 3.0 36.3 1.0 CD2 B:HIS389 3.0 33.4 1.0 ND1 B:HIS389 4.1 33.2 1.0 CG B:HIS389 4.1 32.9 1.0

T.Ji, S.Corbalan-Garcia, S.R.Hubbard. Crystal Structure of the C-Terminal Four-Helix Bundle of the Potassium Channel KCA3.1. Plos One V. 13 99942 2018.
ISSN: ESSN 1932-6203
PubMed: 29953543
DOI: 10.1371/JOURNAL.PONE.0199942