Potassium in PDB 9b8u: Crystal Structure of Crx-RET4 Oligonucleotide Complex

The structure of Crystal Structure of Crx-RET4 Oligonucleotide Complex, PDB code: 9b8u was solved by D.Srivastava, N.O.Artemyev, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	54.67 / 2.90
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	109.597, 75.494, 97.229, 90, 120.25, 90
R / Rfree (%)	24.9 / 24.9

The structure of Crystal Structure of Crx-RET4 Oligonucleotide Complex also contains other interesting chemical elements:

Sodium	(Na)	2 atoms
Arsenic	(As)	2 atoms

The binding sites of Potassium atom in the Crystal Structure of Crx-RET4 Oligonucleotide Complex (pdb code 9b8u). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 3 binding sites of Potassium where determined in the Crystal Structure of Crx-RET4 Oligonucleotide Complex, PDB code: 9b8u:
Jump to Potassium binding site number: 1; 2; 3;

Potassium binding site 1 out of 3 in the Crystal Structure of Crx-RET4 Oligonucleotide 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 Crx-RET4 Oligonucleotide Complex within 5.0Å range: probe atom residue distance (Å) B Occ E:K102 b:117.9 occ:1.00 OP2 E:DA20 2.9 90.0 1.0 P E:DA20 3.8 97.4 1.0 OP1 E:DA20 3.9 114.3 1.0 O3' E:DC19 4.8 75.8 1.0

Potassium binding site 2 out of 3 in the Crystal Structure of Crx-RET4 Oligonucleotide 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 Crx-RET4 Oligonucleotide Complex within 5.0Å range: probe atom residue distance (Å) B Occ F:K102 b:106.0 occ:1.00 O2 F:DC6 2.8 61.0 1.0 O1 E:CAC101 3.4 128.4 1.0 N2 E:DG33 3.7 54.6 1.0 N3 E:DG34 3.9 70.6 1.0 C2 F:DC6 4.0 60.0 1.0 C2' F:DC6 4.0 55.0 1.0 C1' F:DC6 4.1 59.9 1.0 N2 E:DG34 4.2 62.0 1.0 C1 E:CAC101 4.3 164.4 1.0 C2 E:DG34 4.4 61.5 1.0 O4' F:DC7 4.4 67.2 1.0 AS E:CAC101 4.5 198.8 1.0 N1 F:DC6 4.6 60.1 1.0 C4 E:DG34 4.9 69.6 1.0 C1' E:DG34 4.9 88.2 1.0 C1' F:DC7 4.9 54.9 1.0 C2 E:DG33 4.9 45.7 1.0

Potassium binding site 3 out of 3 in the Crystal Structure of Crx-RET4 Oligonucleotide 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 Crx-RET4 Oligonucleotide Complex within 5.0Å range: probe atom residue distance (Å) B Occ H:K103 b:98.2 occ:1.00 OP2 H:DC18 2.7 92.1 1.0 C5' H:DC18 3.8 94.8 1.0 P H:DC18 4.0 124.2 1.0 C7 H:DT19 4.0 85.6 1.0 C6 H:DC18 4.1 77.9 1.0 C5 H:DC18 4.2 75.4 1.0 O5' H:DC18 4.4 93.2 1.0 C3' H:DC17 4.4 85.3 1.0 OP2 H:DT19 4.7 90.0 1.0 O3' H:DC17 4.7 113.7 1.0 C4' H:DC18 4.9 96.8 1.0

D.Srivastava, N.O.Artemyev. Molecular Basis of Crx Homeodomain/Dna Binding and Stoichiometry at the RET4 Cis-Regulatory Element in Rhodopsin Promoter To Be Published.