Potassium in PDB 8ipp: Crystal Structure of the Complex Between An Ankyrin and A Parallel G- Quadruplex

The structure of Crystal Structure of the Complex Between An Ankyrin and A Parallel G- Quadruplex, PDB code: 8ipp was solved by K.H.Ngo, C.W.Liew, B.Heddi, A.T.Phan, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	38.38 / 2.01
Space group	P 21 21 2
Cell size a, b, c (Å), α, β, γ (°)	76.759, 83.587, 31.858, 90, 90, 90
R / Rfree (%)	21.1 / 22.4

The structure of Crystal Structure of the Complex Between An Ankyrin and A Parallel G- Quadruplex also contains other interesting chemical elements:

Magnesium

(Mg)

2 atoms

The binding sites of Potassium atom in the Crystal Structure of the Complex Between An Ankyrin and A Parallel G- Quadruplex (pdb code 8ipp). 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 the Complex Between An Ankyrin and A Parallel G- Quadruplex, PDB code: 8ipp:
Jump to Potassium binding site number: 1; 2; 3;

Potassium binding site 1 out of 3 in the Crystal Structure of the Complex Between An Ankyrin and A Parallel G- Quadruplex


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 the Complex Between An Ankyrin and A Parallel G- Quadruplex within 5.0Å range: probe atom residue distance (Å) B Occ A:K101 b:39.3 occ:1.00 O6 A:DG8 2.8 45.3 1.0 O6 A:DG3 2.8 41.1 1.0 O6 A:DG4 2.8 38.1 1.0 O6 A:DG14 2.8 39.0 1.0 O6 A:DG10 2.8 45.0 1.0 O6 A:DG11 2.9 34.7 1.0 O6 A:DG15 2.9 46.1 1.0 O6 A:DG7 2.9 47.4 1.0 K A:K102 3.4 36.3 1.0 C6 A:DG14 3.6 41.3 1.0 C6 A:DG8 3.6 42.7 1.0 C6 A:DG3 3.6 39.0 1.0 C6 A:DG4 3.7 37.2 1.0 C6 A:DG10 3.7 45.6 1.0 C6 A:DG7 3.8 43.1 1.0 C6 A:DG15 3.8 43.2 1.0 C6 A:DG11 3.8 34.8 1.0 N1 A:DG14 3.8 38.8 1.0 N1 A:DG3 3.9 40.7 1.0 N1 A:DG8 3.9 39.8 1.0 N1 A:DG4 3.9 39.4 1.0 N1 A:DG10 4.0 41.7 1.0 N1 A:DG11 4.0 42.1 1.0 N1 A:DG7 4.0 41.8 1.0 N1 A:DG15 4.0 48.0 1.0 CD B:ARG23 4.7 39.2 1.0 C5 A:DG14 4.8 39.8 1.0 C5 A:DG3 4.8 40.4 1.0 C5 A:DG8 4.8 44.4 1.0 C5 A:DG10 5.0 46.1 1.0 C5 A:DG4 5.0 39.6 1.0 C5 A:DG7 5.0 41.7 1.0

Potassium binding site 2 out of 3 in the Crystal Structure of the Complex Between An Ankyrin and A Parallel G- Quadruplex


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 the Complex Between An Ankyrin and A Parallel G- Quadruplex within 5.0Å range: probe atom residue distance (Å) B Occ A:K102 b:36.3 occ:1.00 O6 A:DG7 2.7 47.4 1.0 O6 A:DG10 2.8 45.0 1.0 O6 A:DG13 2.8 39.1 1.0 O6 A:DG14 2.9 39.0 1.0 O6 A:DG2 2.9 42.6 1.0 O6 A:DG6 2.9 38.9 1.0 O6 A:DG3 2.9 41.1 1.0 K A:K103 3.3 36.0 0.5 K A:K101 3.4 39.3 1.0 C6 A:DG7 3.6 43.1 1.0 C6 A:DG13 3.6 40.9 1.0 C6 A:DG2 3.7 39.2 1.0 C6 A:DG10 3.7 45.6 1.0 C6 A:DG6 3.8 42.0 1.0 C6 A:DG3 3.8 39.0 1.0 C6 A:DG14 3.8 41.3 1.0 N1 A:DG7 3.8 41.8 1.0 N1 A:DG2 3.9 44.1 1.0 N1 A:DG13 3.9 44.5 1.0 N1 A:DG6 4.0 41.1 1.0 N1 A:DG3 4.0 40.7 1.0 N1 A:DG10 4.1 41.7 1.0 N1 A:DG14 4.1 38.8 1.0 C5 A:DG7 4.8 41.7 1.0 C5 A:DG10 4.9 46.1 1.0 C5 A:DG13 4.9 42.3 1.0 C5 A:DG2 4.9 44.7 1.0 C5 A:DG6 5.0 46.0 1.0

Potassium binding site 3 out of 3 in the Crystal Structure of the Complex Between An Ankyrin and A Parallel G- Quadruplex


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 the Complex Between An Ankyrin and A Parallel G- Quadruplex within 5.0Å range: probe atom residue distance (Å) B Occ A:K103 b:36.0 occ:0.50 O6 A:DG6 2.9 38.9 1.0 O6 A:DG1 2.9 43.2 1.0 O6 A:DG13 2.9 39.1 1.0 O6 A:DG2 2.9 42.6 1.0 K A:K102 3.3 36.3 1.0 C6 A:DG1 3.7 43.8 1.0 C6 A:DG13 3.7 40.9 1.0 C6 A:DG6 3.8 42.0 1.0 C6 A:DG2 3.8 39.2 1.0 N1 A:DG2 4.0 44.1 1.0 N1 A:DG13 4.0 44.5 1.0 N1 A:DG1 4.0 43.9 1.0 N1 A:DG6 4.0 41.1 1.0 C5 A:DG1 4.9 43.9 1.0 C5 A:DG13 4.9 42.3 1.0 C5 A:DG6 5.0 46.0 1.0

K.H.Ngo, C.W.Liew, B.Heddi, A.T.Phan. Structural Basis For Parallel G-Quadruplex Recognition By An Ankyrin Protein. J.Am.Chem.Soc. V. 146 13709 2024.
ISSN: ESSN 1520-5126
PubMed: 38738955
DOI: 10.1021/JACS.4C01971