Potassium in PDB 2h5f: Denmotoxin: A the Three-Finger Toxin From Colubrid Snake Boiga Dendrophila with Bird-Specific Activity

The structure of Denmotoxin: A the Three-Finger Toxin From Colubrid Snake Boiga Dendrophila with Bird-Specific Activity, PDB code: 2h5f was solved by J.Pawlak, R.M.Kini, E.A.Stura, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	47.67 / 1.90
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	98.910, 34.038, 54.377, 90.00, 118.36, 90.00
R / Rfree (%)	20.2 / 23.8

The structure of Denmotoxin: A the Three-Finger Toxin From Colubrid Snake Boiga Dendrophila with Bird-Specific Activity also contains other interesting chemical elements:

Sodium

(Na)

2 atoms

The binding sites of Potassium atom in the Denmotoxin: A the Three-Finger Toxin From Colubrid Snake Boiga Dendrophila with Bird-Specific Activity (pdb code 2h5f). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Denmotoxin: A the Three-Finger Toxin From Colubrid Snake Boiga Dendrophila with Bird-Specific Activity, PDB code: 2h5f:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Denmotoxin: A the Three-Finger Toxin From Colubrid Snake Boiga Dendrophila with Bird-Specific Activity


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Denmotoxin: A the Three-Finger Toxin From Colubrid Snake Boiga Dendrophila with Bird-Specific Activity within 5.0Å range: probe atom residue distance (Å) B Occ A:K305 b:13.6 occ:1.00 O A:ASN14 2.7 12.1 1.0 O A:SER19 2.8 9.1 1.0 OG1 A:THR17 3.0 10.0 1.0 OG A:SER19 3.0 10.2 1.0 O A:HOH379 3.0 33.5 1.0 O A:THR17 3.0 12.1 1.0 O A:ARG15 3.1 13.4 1.0 SG A:CYS21 3.3 12.9 1.0 C A:THR17 3.5 10.9 1.0 N A:SER19 3.5 10.6 1.0 C A:SER19 3.7 12.1 1.0 C A:ARG15 3.7 16.1 1.0 C A:ASN14 3.9 11.4 1.0 N A:THR17 3.9 13.2 1.0 CA A:SER19 3.9 12.4 1.0 CB A:SER19 4.0 10.9 1.0 CA A:THR17 4.1 11.6 1.0 CB A:THR17 4.2 10.1 1.0 N A:TRP18 4.2 11.7 1.0 CA A:ARG15 4.2 13.6 1.0 C A:TRP18 4.2 11.5 1.0 N A:LYS16 4.4 19.4 1.0 CA A:TRP18 4.5 11.9 1.0 CB A:CYS13 4.5 10.9 1.0 N A:ARG15 4.5 12.2 1.0 SG A:CYS13 4.6 10.9 1.0 C A:LYS16 4.6 18.8 1.0 CB A:CYS21 4.7 11.9 1.0 N A:CYS21 4.7 10.6 1.0 O A:HOH322 4.8 17.6 1.0 N A:ASN20 4.8 11.8 1.0 N A:ASN14 4.9 9.8 1.0 CA A:LYS16 4.9 21.6 1.0

Potassium binding site 2 out of 2 in the Denmotoxin: A the Three-Finger Toxin From Colubrid Snake Boiga Dendrophila with Bird-Specific Activity


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Denmotoxin: A the Three-Finger Toxin From Colubrid Snake Boiga Dendrophila with Bird-Specific Activity within 5.0Å range: probe atom residue distance (Å) B Occ B:K306 b:10.4 occ:1.00 O B:ASN14 2.7 9.9 1.0 O B:SER19 2.9 9.4 1.0 O B:THR17 2.9 11.6 1.0 OG B:SER19 2.9 8.5 1.0 O B:HOH339 3.2 31.8 1.0 SG B:CYS21 3.3 12.2 1.0 O B:ARG15 3.3 13.6 1.0 C B:THR17 3.5 10.9 1.0 N B:SER19 3.5 11.1 1.0 C B:SER19 3.7 9.5 1.0 C B:ARG15 3.8 14.8 1.0 C B:ASN14 3.9 10.9 1.0 N B:THR17 3.9 12.9 1.0 CA B:SER19 3.9 11.1 1.0 CB B:SER19 4.0 11.1 1.0 CA B:THR17 4.1 12.3 1.0 C B:TRP18 4.1 12.0 1.0 CA B:ARG15 4.2 11.3 1.0 CB B:THR17 4.2 10.9 1.0 N B:TRP18 4.2 10.6 1.0 N B:ARG15 4.5 11.1 1.0 CA B:TRP18 4.5 12.1 1.0 N B:LYS16 4.5 13.6 1.0 C B:LYS16 4.6 16.1 1.0 CB B:CYS21 4.6 11.6 1.0 CB B:CYS13 4.6 9.0 1.0 SG B:CYS13 4.6 11.5 1.0 N B:CYS21 4.7 10.8 1.0 N B:ASN20 4.7 11.1 1.0 O B:HOH367 4.7 15.2 1.0 N B:ASN14 4.9 9.2 1.0 O B:TRP18 4.9 12.7 1.0

J.Pawlak, S.P.Mackessy, B.G.Fry, M.Bhatia, G.Mourier, C.Fruchart-Gaillard, D.Servent, R.Menez, E.Stura, A.Menez, R.M.Kini. Denmotoxin, A Three-Finger Toxin From the Colubrid Snake Boiga Dendrophila (Mangrove Catsnake) with Bird-Specific Activity. J.Biol.Chem. V. 281 29030 2006.
ISSN: ISSN 0021-9258
PubMed: 16864572
DOI: 10.1074/JBC.M605850200