Potassium in PDB 2h8d: Crystal Structure of Deoxy Hemoglobin From Trematomus Bernacchii at pH 8.4

The structure of Crystal Structure of Deoxy Hemoglobin From Trematomus Bernacchii at pH 8.4, PDB code: 2h8d was solved by L.Mazzarella, A.Vergara, L.Vitagliano, A.Merlino, G.Bonomi, S.Scala, C.Verde, G.Di Prisco, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	20.00 / 1.78
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	61.800, 94.630, 61.860, 90.00, 90.19, 90.00
R / Rfree (%)	18 / 22.4

The structure of Crystal Structure of Deoxy Hemoglobin From Trematomus Bernacchii at pH 8.4 also contains other interesting chemical elements:

Iron

(Fe)

4 atoms

The binding sites of Potassium atom in the Crystal Structure of Deoxy Hemoglobin From Trematomus Bernacchii at pH 8.4 (pdb code 2h8d). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Crystal Structure of Deoxy Hemoglobin From Trematomus Bernacchii at pH 8.4, PDB code: 2h8d:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Crystal Structure of Deoxy Hemoglobin From Trematomus Bernacchii at pH 8.4


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 Deoxy Hemoglobin From Trematomus Bernacchii at pH 8.4 within 5.0Å range: probe atom residue distance (Å) B Occ A:K1002 b:29.9 occ:1.00 O A:HOH1378 2.1 39.1 1.0 OD2 A:ASP75 2.1 20.2 1.0 O A:HOH1379 2.2 30.2 1.0 O A:HOH1323 3.1 32.3 1.0 CG A:ASP75 3.1 19.3 1.0 OD1 A:ASP75 3.5 20.4 1.0 O A:HOH1019 3.8 22.6 1.0 NH2 A:ARG11 3.8 20.7 1.0 CB A:ASP75 4.4 18.0 1.0 O A:HOH1082 4.7 23.4 1.0 CZ A:ARG11 4.9 19.4 1.0

Potassium binding site 2 out of 2 in the Crystal Structure of Deoxy Hemoglobin From Trematomus Bernacchii at pH 8.4


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 Deoxy Hemoglobin From Trematomus Bernacchii at pH 8.4 within 5.0Å range: probe atom residue distance (Å) B Occ C:K1001 b:31.2 occ:1.00 OD2 C:ASP75 1.9 18.1 1.0 O C:HOH1376 2.2 24.5 1.0 O C:HOH1380 2.3 29.1 1.0 O C:HOH1375 2.6 26.5 1.0 CG C:ASP75 2.9 17.5 1.0 OD1 C:ASP75 3.2 18.8 1.0 NH2 C:ARG11 3.9 21.5 1.0 O C:HOH1018 4.1 17.1 1.0 CB C:ASP75 4.2 16.7 1.0 NH1 C:ARG11 4.5 21.9 1.0 CZ C:ARG11 4.6 20.7 1.0 O C:HOH1184 4.8 21.1 1.0

L.Mazzarella, A.Vergara, L.Vitagliano, A.Merlino, G.Bonomi, S.Scala, C.Verde, G.Di Prisco. High Resolution Crystal Structure of Deoxy Hemoglobin From Trematomus Bernacchii at Different pH Values: the Role of Histidine Residues in Modulating the Strength of the Root Effect. Proteins V. 65 490 2006.
ISSN: ISSN 0887-3585
PubMed: 16909420
DOI: 10.1002/PROT.21114