Potassium in PDB 2a0l: Crystal Structure of Kvap-33H1 Fv Complex

The structure of Crystal Structure of Kvap-33H1 Fv Complex, PDB code: 2a0l was solved by S.Y.Lee, A.Lee, J.Chen, R.Mackinnon, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	57.89 / 3.90
Space group	P 42 2 2
Cell size a, b, c (Å), α, β, γ (°)	136.362, 136.362, 191.812, 90.00, 90.00, 90.00
R / Rfree (%)	35.8 / 39.2

The binding sites of Potassium atom in the Crystal Structure of Kvap-33H1 Fv Complex (pdb code 2a0l). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 4 binding sites of Potassium where determined in the Crystal Structure of Kvap-33H1 Fv Complex, PDB code: 2a0l:
Jump to Potassium binding site number: 1; 2; 3; 4;

Potassium binding site 1 out of 4 in the Crystal Structure of Kvap-33H1 Fv Complex


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Crystal Structure of Kvap-33H1 Fv Complex within 5.0Å range: probe atom residue distance (Å) B Occ B:K1 b:0.5 occ:0.50 K A:K2 3.4 0.5 0.5 O B:TYR199 3.5 0.9 1.0 O A:TYR199 3.6 0.7 1.0 C B:TYR199 3.7 0.9 1.0 C A:TYR199 3.8 0.7 1.0 CA B:TYR199 4.0 0.9 1.0 O A:GLY198 4.0 0.2 1.0 O B:GLY198 4.0 0.4 1.0 CA A:TYR199 4.0 0.7 1.0 N B:GLY200 4.3 0.7 1.0 N A:GLY200 4.4 0.6 1.0 C B:GLY198 4.7 0.4 1.0 C A:GLY198 4.7 0.2 1.0 N B:TYR199 4.8 0.9 1.0 CA B:GLY200 4.8 0.7 1.0 N A:TYR199 4.8 0.7 1.0 CA A:GLY200 4.9 0.6 1.0

Potassium binding site 2 out of 4 in the Crystal Structure of Kvap-33H1 Fv Complex


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Crystal Structure of Kvap-33H1 Fv Complex within 5.0Å range: probe atom residue distance (Å) B Occ A:K2 b:0.5 occ:0.50 O B:GLY198 3.1 0.4 1.0 O A:GLY198 3.1 0.2 1.0 K A:K3 3.2 0.5 0.5 O B:VAL197 3.2 0.6 1.0 O A:VAL197 3.2 0.9 1.0 K B:K1 3.4 0.5 0.5 C B:GLY198 4.1 0.4 1.0 C A:GLY198 4.2 0.2 1.0 C B:VAL197 4.4 0.6 1.0 C A:VAL197 4.4 0.9 1.0 CA B:GLY198 4.7 0.4 1.0 CA A:GLY198 4.8 0.2 1.0

Potassium binding site 3 out of 4 in the Crystal Structure of Kvap-33H1 Fv Complex


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Crystal Structure of Kvap-33H1 Fv Complex within 5.0Å range: probe atom residue distance (Å) B Occ A:K3 b:0.5 occ:0.50 O B:THR196 3.1 0.5 1.0 O A:THR196 3.2 0.4 1.0 K A:K2 3.2 0.5 0.5 O B:VAL197 3.3 0.6 1.0 K B:K4 3.3 0.5 0.5 O A:VAL197 3.4 0.9 1.0 C B:VAL197 4.1 0.6 1.0 C A:VAL197 4.2 0.9 1.0 C B:THR196 4.3 0.5 1.0 C A:THR196 4.3 0.4 1.0 CA B:VAL197 4.4 0.6 1.0 CA A:VAL197 4.5 0.9 1.0 N B:VAL197 4.8 0.6 1.0 O B:GLY198 4.9 0.4 1.0 N A:VAL197 4.9 0.9 1.0

Potassium binding site 4 out of 4 in the Crystal Structure of Kvap-33H1 Fv Complex


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 4 of Crystal Structure of Kvap-33H1 Fv Complex within 5.0Å range: probe atom residue distance (Å) B Occ B:K4 b:0.5 occ:0.50 O B:THR196 3.1 0.5 1.0 O A:THR196 3.3 0.4 1.0 K A:K3 3.3 0.5 0.5 OG1 B:THR196 3.4 0.7 1.0 OG1 A:THR196 3.5 1.0 1.0 CB B:THR196 3.6 0.7 1.0 CB A:THR196 3.8 1.0 1.0 C B:THR196 4.0 0.5 1.0 C A:THR196 4.2 0.4 1.0 CA B:THR196 4.4 0.5 1.0 CA A:THR196 4.6 0.4 1.0 CG2 B:THR196 4.9 0.7 1.0 CG2 A:THR196 4.9 1.0 1.0

S.Y.Lee, A.Lee, J.Chen, R.Mackinnon. Structure of the Kvap Voltage-Dependent K+ Channel and Its Dependence on the Lipid Membrane. Proc.Natl.Acad.Sci.Usa V. 102 15441 2005.
ISSN: ISSN 0027-8424
PubMed: 16223877
DOI: 10.1073/PNAS.0507651102