Potassium in PDB 1zqa: Dna Polymerase Beta (Pol B) (E.C.2.7.7.7) Complexed with Seven Base Pairs of Dna; Soaked in the Presence of Kcl (150 Millimolar) at pH 7.5

The structure of Dna Polymerase Beta (Pol B) (E.C.2.7.7.7) Complexed with Seven Base Pairs of Dna; Soaked in the Presence of Kcl (150 Millimolar) at pH 7.5, PDB code: 1zqa was solved by H.Pelletier, M.R.Sawaya, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	20.00 / 3.20
Space group	P 21 21 2
Cell size a, b, c (Å), α, β, γ (°)	178.376, 57.899, 48.433, 90.00, 90.00, 90.00
R / Rfree (%)	14.6 / n/a

The binding sites of Potassium atom in the Dna Polymerase Beta (Pol B) (E.C.2.7.7.7) Complexed with Seven Base Pairs of Dna; Soaked in the Presence of Kcl (150 Millimolar) at pH 7.5 (pdb code 1zqa). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 2 binding sites of Potassium where determined in the Dna Polymerase Beta (Pol B) (E.C.2.7.7.7) Complexed with Seven Base Pairs of Dna; Soaked in the Presence of Kcl (150 Millimolar) at pH 7.5, PDB code: 1zqa:
Jump to Potassium binding site number: 1; 2;

Potassium binding site 1 out of 2 in the Dna Polymerase Beta (Pol B) (E.C.2.7.7.7) Complexed with Seven Base Pairs of Dna; Soaked in the Presence of Kcl (150 Millimolar) at pH 7.5


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Dna Polymerase Beta (Pol B) (E.C.2.7.7.7) Complexed with Seven Base Pairs of Dna; Soaked in the Presence of Kcl (150 Millimolar) at pH 7.5 within 5.0Å range: probe atom residue distance (Å) B Occ A:K341 b:15.4 occ:1.00 OP1 P:DT6 2.1 13.1 1.0 O A:THR101 2.4 24.7 1.0 O A:VAL103 2.6 13.8 1.0 O A:ILE106 2.7 6.3 1.0 O A:HOH601 2.8 0.0 1.0 O P:HOH665 2.9 56.9 1.0 P P:DT6 3.4 10.2 1.0 C A:THR101 3.5 17.1 1.0 C A:VAL103 3.6 13.5 1.0 C A:ILE106 3.7 8.4 1.0 OP2 P:DT6 3.8 5.3 1.0 N A:ILE106 3.9 4.0 1.0 N A:GLY105 3.9 19.1 1.0 CA A:SER104 4.0 10.1 1.0 N A:SER104 4.1 8.9 1.0 C A:ARG102 4.2 29.4 1.0 N A:VAL103 4.2 24.3 1.0 CA A:ILE106 4.3 5.2 1.0 CA A:THR101 4.3 14.6 1.0 C A:SER104 4.4 18.8 1.0 O3' P:DA5 4.4 10.4 1.0 N A:ARG102 4.5 11.8 1.0 O A:ARG102 4.5 42.1 1.0 CA A:ARG102 4.6 19.0 1.0 CA A:VAL103 4.6 15.2 1.0 O5' P:DT6 4.6 2.9 1.0 CB A:ILE106 4.7 2.8 1.0 N A:GLY107 4.8 10.2 1.0 C A:GLY105 4.9 8.7 1.0 CA A:GLY105 4.9 10.9 1.0

Potassium binding site 2 out of 2 in the Dna Polymerase Beta (Pol B) (E.C.2.7.7.7) Complexed with Seven Base Pairs of Dna; Soaked in the Presence of Kcl (150 Millimolar) at pH 7.5


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Dna Polymerase Beta (Pol B) (E.C.2.7.7.7) Complexed with Seven Base Pairs of Dna; Soaked in the Presence of Kcl (150 Millimolar) at pH 7.5 within 5.0Å range: probe atom residue distance (Å) B Occ A:K342 b:60.1 occ:1.00 O A:LEU62 2.3 56.5 1.0 O A:LYS60 2.9 38.1 1.0 O A:VAL65 3.3 24.9 1.0 C A:LEU62 3.4 42.2 1.0 C A:LYS61 4.0 30.5 1.0 C A:LYS60 4.0 29.4 1.0 N A:LEU62 4.1 29.5 1.0 O A:LYS61 4.2 35.1 1.0 N A:PRO63 4.2 33.4 1.0 C A:VAL65 4.3 19.2 1.0 CA A:PRO63 4.3 29.5 1.0 CA A:LEU62 4.4 33.8 1.0 N A:VAL65 4.4 20.1 1.0 CA A:LYS61 4.4 29.4 1.0 N A:GLY64 4.6 42.2 1.0 N A:LYS61 4.7 23.8 1.0 CA A:VAL65 4.7 19.4 1.0 C A:PRO63 4.8 41.3 1.0

H.Pelletier, M.R.Sawaya. Characterization of the Metal Ion Binding Helix-Hairpin-Helix Motifs in Human Dna Polymerase Beta By X-Ray Structural Analysis. Biochemistry V. 35 12778 1996.
ISSN: ISSN 0006-2960
PubMed: 8841120
DOI: 10.1021/BI960790I