Arsenic in PDB 2boc: Potassium Channel Kcsa-Fab Complex in Thallium with Tetraethylarsonium (Teas)

The structure of Potassium Channel Kcsa-Fab Complex in Thallium with Tetraethylarsonium (Teas), PDB code: 2boc was solved by M.J.Lenaeus, M.Vamvouka, P.J.Focia, A.Gross, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	25.00 / 3.01
Space group	I 4
Cell size a, b, c (Å), α, β, γ (°)	154.680, 154.680, 76.190, 90.00, 90.00, 90.00
R / Rfree (%)	22.2 / 25

The structure of Potassium Channel Kcsa-Fab Complex in Thallium with Tetraethylarsonium (Teas) also contains other interesting chemical elements:

Cobalt	(Co)	1 atom
Thallium	(Tl)	4 atoms

The binding sites of Arsenic atom in the Potassium Channel Kcsa-Fab Complex in Thallium with Tetraethylarsonium (Teas) (pdb code 2boc). This binding sites where shown within 5.0 Angstroms radius around Arsenic atom.
In total 2 binding sites of Arsenic where determined in the Potassium Channel Kcsa-Fab Complex in Thallium with Tetraethylarsonium (Teas), PDB code: 2boc:
Jump to Arsenic binding site number: 1; 2;

Arsenic binding site 1 out of 2 in the Potassium Channel Kcsa-Fab Complex in Thallium with Tetraethylarsonium (Teas)


Mono view


Stereo pair view

A full contact list of Arsenic with other atoms in the As binding site number 1 of Potassium Channel Kcsa-Fab Complex in Thallium with Tetraethylarsonium (Teas) within 5.0Å range: probe atom residue distance (Å) B Occ C:As206 b:39.5 occ:0.09 AS C:T1A206 0.0 39.5 0.1 AS C:T1A206 0.1 40.0 0.1 C7 C:T1A206 1.8 39.9 0.1 C3 C:T1A206 1.9 39.9 0.1 C1 C:T1A206 1.9 39.4 0.1 C3 C:T1A206 1.9 39.4 0.1 C7 C:T1A206 1.9 39.4 0.1 C5 C:T1A206 1.9 39.4 0.1 C5 C:T1A206 1.9 39.9 0.1 C1 C:T1A206 1.9 39.9 0.1 C8 C:T1A206 2.8 39.9 0.1 C4 C:T1A206 2.8 39.9 0.1 C2 C:T1A206 2.8 39.4 0.1 C8 C:T1A206 2.8 39.4 0.1 C6 C:T1A206 2.8 39.4 0.1 C4 C:T1A206 2.8 39.4 0.1 C2 C:T1A206 2.8 39.9 0.1 C6 C:T1A206 2.9 39.9 0.1 O C:TYR78 4.8 19.9 1.0

Arsenic binding site 2 out of 2 in the Potassium Channel Kcsa-Fab Complex in Thallium with Tetraethylarsonium (Teas)


Mono view


Stereo pair view

A full contact list of Arsenic with other atoms in the As binding site number 2 of Potassium Channel Kcsa-Fab Complex in Thallium with Tetraethylarsonium (Teas) within 5.0Å range: probe atom residue distance (Å) B Occ C:As206 b:40.0 occ:0.09 AS C:T1A206 0.0 40.0 0.1 AS C:T1A206 0.1 39.5 0.1 C1 C:T1A206 1.8 39.4 0.1 C7 C:T1A206 1.9 39.4 0.1 C1 C:T1A206 1.9 39.9 0.1 C3 C:T1A206 1.9 39.9 0.1 C5 C:T1A206 1.9 39.9 0.1 C7 C:T1A206 1.9 39.9 0.1 C3 C:T1A206 1.9 39.4 0.1 C5 C:T1A206 1.9 39.4 0.1 C2 C:T1A206 2.7 39.4 0.1 C8 C:T1A206 2.8 39.4 0.1 C6 C:T1A206 2.8 39.9 0.1 C2 C:T1A206 2.8 39.9 0.1 C4 C:T1A206 2.8 39.9 0.1 C8 C:T1A206 2.8 39.9 0.1 C6 C:T1A206 2.8 39.4 0.1 C4 C:T1A206 2.9 39.4 0.1 O C:TYR78 4.7 19.9 1.0 O C:GLY79 5.0 19.4 1.0

M.J.Lenaeus, M.Vamvouka, P.J.Focia, A.Gross. Structural Basis of Tea Blockade in A Model Potassium Channel Nat.Struct.Mol.Biol. V. 12 454 2005.
ISSN: ISSN 1545-9993
PubMed: 15852022
DOI: 10.1038/NSMB929