Potassium in PDB 4fxm: Crystal Structure of the Complex of A Human Telomeric Repeat G- Quadruplex and N-Methyl Mesoporphyrin IX (P21212)

The structure of Crystal Structure of the Complex of A Human Telomeric Repeat G- Quadruplex and N-Methyl Mesoporphyrin IX (P21212), PDB code: 4fxm was solved by J.M.Nicoludis, S.T.Miller, P.Jeffrey, T.J.Lawton, A.C.Rosenzweig, L.A.Yatsunyk, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	42.38 / 1.65
Space group	P 21 21 2
Cell size a, b, c (Å), α, β, γ (°)	50.755, 41.980, 42.384, 90.00, 90.00, 90.00
R / Rfree (%)	22.2 / 26.2

The binding sites of Potassium atom in the Crystal Structure of the Complex of A Human Telomeric Repeat G- Quadruplex and N-Methyl Mesoporphyrin IX (P21212) (pdb code 4fxm). 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 of A Human Telomeric Repeat G- Quadruplex and N-Methyl Mesoporphyrin IX (P21212), PDB code: 4fxm:
Jump to Potassium binding site number: 1; 2; 3;

Potassium binding site 1 out of 3 in the Crystal Structure of the Complex of A Human Telomeric Repeat G- Quadruplex and N-Methyl Mesoporphyrin IX (P21212)


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 of A Human Telomeric Repeat G- Quadruplex and N-Methyl Mesoporphyrin IX (P21212) within 5.0Å range: probe atom residue distance (Å) B Occ A:K101 b:17.5 occ:1.00 O6 A:DG15 2.7 15.9 1.0 O6 A:DG9 2.7 18.1 1.0 O6 A:DG21 2.7 17.3 1.0 O6 A:DG3 2.7 17.7 1.0 O6 A:DG8 2.8 16.9 1.0 O6 A:DG20 2.8 15.5 1.0 O6 A:DG2 2.8 17.2 1.0 O6 A:DG14 2.8 15.7 1.0 K A:K103 3.0 19.3 0.8 K A:K102 3.4 18.9 1.0 C6 A:DG8 3.6 20.7 1.0 C6 A:DG20 3.6 17.2 1.0 C6 A:DG15 3.6 20.6 1.0 C6 A:DG9 3.7 17.3 1.0 C6 A:DG21 3.7 16.8 1.0 C6 A:DG3 3.7 18.4 1.0 C6 A:DG2 3.7 19.9 1.0 C6 A:DG14 3.7 17.4 1.0 N1 A:DG8 3.9 16.3 1.0 N1 A:DG20 3.9 17.2 1.0 N1 A:DG9 4.0 17.9 1.0 N1 A:DG14 4.0 15.4 1.0 N1 A:DG2 4.0 16.3 1.0 N1 A:DG15 4.0 18.8 1.0 N1 A:DG21 4.0 18.0 1.0 N1 A:DG3 4.0 17.6 1.0 C5 A:DG8 4.8 18.4 1.0 C5 A:DG15 4.9 17.6 1.0 C5 A:DG20 4.9 18.7 1.0 C5 A:DG14 4.9 17.6 1.0 C5 A:DG2 4.9 17.4 1.0 C5 A:DG21 4.9 16.9 1.0 C5 A:DG9 4.9 15.7 1.0 C5 A:DG3 4.9 18.3 1.0

Potassium binding site 2 out of 3 in the Crystal Structure of the Complex of A Human Telomeric Repeat G- Quadruplex and N-Methyl Mesoporphyrin IX (P21212)


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 of A Human Telomeric Repeat G- Quadruplex and N-Methyl Mesoporphyrin IX (P21212) within 5.0Å range: probe atom residue distance (Å) B Occ A:K102 b:18.9 occ:1.00 O6 A:DG4 2.7 20.6 1.0 O6 A:DG10 2.7 20.7 1.0 O6 A:DG16 2.7 20.3 1.0 O6 A:DG22 2.8 19.7 1.0 O6 A:DG21 2.9 17.3 1.0 O6 A:DG15 2.9 15.9 1.0 O6 A:DG9 2.9 18.1 1.0 O6 A:DG3 2.9 17.7 1.0 K A:K101 3.4 17.5 1.0 C6 A:DG10 3.7 20.5 1.0 C6 A:DG4 3.7 21.3 1.0 C1 A:MMP104 3.7 31.4 1.0 C6 A:DG16 3.7 19.2 1.0 C6 A:DG22 3.7 21.0 1.0 C6 A:DG21 3.7 16.8 1.0 C6 A:DG9 3.7 17.3 1.0 C6 A:DG15 3.7 20.6 1.0 C6 A:DG3 3.8 18.4 1.0 N1 A:DG10 3.9 19.3 1.0 N1 A:DG22 3.9 19.9 1.0 N1 A:DG16 4.0 20.2 1.0 N1 A:DG4 4.0 22.5 1.0 N1 A:DG9 4.0 17.9 1.0 N1 A:DG15 4.0 18.8 1.0 N1 A:DG3 4.1 17.6 1.0 N1 A:DG21 4.1 18.0 1.0 C5 A:DG15 4.8 17.6 1.0 N1 A:MMP104 4.8 36.4 1.0 C5 A:DG9 4.9 15.7 1.0 C5 A:DG21 4.9 16.9 1.0 C5 A:DG3 4.9 18.3 1.0 C5 A:DG10 5.0 19.1 1.0 C5 A:DG16 5.0 19.7 1.0 C5 A:DG22 5.0 20.7 1.0 C5 A:DG4 5.0 22.6 1.0

Potassium binding site 3 out of 3 in the Crystal Structure of the Complex of A Human Telomeric Repeat G- Quadruplex and N-Methyl Mesoporphyrin IX (P21212)


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 of A Human Telomeric Repeat G- Quadruplex and N-Methyl Mesoporphyrin IX (P21212) within 5.0Å range: probe atom residue distance (Å) B Occ A:K103 b:19.3 occ:0.76 O6 A:DG2 2.5 17.2 1.0 O6 A:DG20 2.5 15.5 1.0 O6 A:DG8 2.7 16.9 1.0 O6 A:DG14 2.7 15.7 1.0 K A:K101 3.0 17.5 1.0 C6 A:DG2 3.4 19.9 1.0 C6 A:DG20 3.4 17.2 1.0 C6 A:DG14 3.6 17.4 1.0 C6 A:DG8 3.6 20.7 1.0 N1 A:DG20 3.7 17.2 1.0 N1 A:DG2 3.8 16.3 1.0 N1 A:DG14 3.9 15.4 1.0 N1 A:DG8 3.9 16.3 1.0 C5 A:DG2 4.7 17.4 1.0 C5 A:DG20 4.7 18.7 1.0 C5 A:DG14 4.9 17.6 1.0 C5 A:DG8 4.9 18.4 1.0 O6 A:DG21 5.0 17.3 1.0

J.M.Nicoludis, S.T.Miller, P.D.Jeffrey, S.P.Barrett, P.R.Rablen, T.J.Lawton, L.A.Yatsunyk. Optimized End-Stacking Provides Specificity of N-Methyl Mesoporphyrin IX For Human Telomeric G-Quadruplex Dna. J.Am.Chem.Soc. V. 134 20446 2012.
ISSN: ISSN 0002-7863
PubMed: 23181361
DOI: 10.1021/JA3088746