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Magnesium in PDB 8d2a: Crystal Structure of Theophylline Aptamer in Complex with TAL3

Protein crystallography data

The structure of Crystal Structure of Theophylline Aptamer in Complex with TAL3, PDB code: 8d2a was solved by E.Menichelli, G.Spraggon, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 27.91 / 2.17
Space group P 1
Cell size a, b, c (Å), α, β, γ (°) 23.075, 29.662, 80.291, 95.39, 89.99, 109.01
R / Rfree (%) 18.7 / 25.2

Other elements in 8d2a:

The structure of Crystal Structure of Theophylline Aptamer in Complex with TAL3 also contains other interesting chemical elements:

Sodium (Na) 4 atoms

Magnesium Binding Sites:

The binding sites of Magnesium atom in the Crystal Structure of Theophylline Aptamer in Complex with TAL3 (pdb code 8d2a). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 2 binding sites of Magnesium where determined in the Crystal Structure of Theophylline Aptamer in Complex with TAL3, PDB code: 8d2a:
Jump to Magnesium binding site number: 1; 2;

Magnesium binding site 1 out of 2 in 8d2a

Go back to Magnesium Binding Sites List in 8d2a
Magnesium binding site 1 out of 2 in the Crystal Structure of Theophylline Aptamer in Complex with TAL3


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Crystal Structure of Theophylline Aptamer in Complex with TAL3 within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Mg103

b:36.2
occ:1.00
O A:HOH235 2.2 21.1 1.0
O A:HOH209 2.3 27.5 1.0
O A:HOH236 2.3 29.9 1.0
N7 A:G25 2.4 32.6 1.0
HO2' A:U24 3.0 35.2 1.0
C8 A:G25 3.1 31.7 1.0
H8 A:G25 3.1 37.8 1.0
C5 A:G25 3.5 33.7 1.0
O A:HOH210 3.5 22.1 1.0
O2' A:U24 3.5 29.5 1.0
O6 A:G25 4.0 33.6 1.0
H2 A:A7 4.0 36.5 1.0
C6 A:G25 4.1 35.4 1.0
N9 A:G25 4.4 32.0 1.0
H1' A:U24 4.4 32.2 1.0
O2 A:U24 4.5 21.6 1.0
O6 A:G26 4.5 27.6 1.0
HO2' A:C21 4.5 43.9 1.0
C4 A:G25 4.6 33.9 1.0
N1 A:A7 4.6 32.2 1.0
O3' A:U24 4.6 32.4 1.0
H5' A:C22 4.6 33.0 1.0
H2' A:C21 4.6 41.8 1.0
N7 A:G26 4.7 30.0 1.0
C2 A:A7 4.7 30.6 1.0
H4' A:C22 4.7 29.0 1.0
O2' A:C21 4.7 36.8 1.0
C2' A:U24 4.7 29.8 1.0
O2 A:C21 4.8 36.8 1.0
OP1 A:G25 4.9 44.0 1.0
O4' A:C22 5.0 24.6 1.0
C1' A:U24 5.0 27.0 1.0
O5' A:G25 5.0 36.4 1.0

Magnesium binding site 2 out of 2 in 8d2a

Go back to Magnesium Binding Sites List in 8d2a
Magnesium binding site 2 out of 2 in the Crystal Structure of Theophylline Aptamer in Complex with TAL3


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of Crystal Structure of Theophylline Aptamer in Complex with TAL3 within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Mg103

b:35.1
occ:1.00
O B:HOH253 2.0 31.8 1.0
O B:HOH219 2.1 28.1 1.0
O B:HOH254 2.2 30.5 1.0
O B:HOH230 2.2 28.0 1.0
N7 B:G25 2.2 34.2 1.0
O B:HOH250 2.2 33.6 1.0
C8 B:G25 3.1 30.8 1.0
H8 B:G25 3.2 36.8 1.0
C5 B:G25 3.3 31.1 1.0
HO2' B:U24 3.4 36.0 1.0
H2 B:A7 3.6 38.2 1.0
O6 B:G25 3.7 31.2 1.0
O B:HOH211 3.7 36.1 1.0
C6 B:G25 3.8 33.2 1.0
O2' B:U24 3.9 30.2 1.0
O B:HOH233 4.0 24.8 1.0
N1 B:A7 4.1 31.6 1.0
C2 B:A7 4.2 32.0 1.0
H2' B:C21 4.3 37.9 1.0
N9 B:G25 4.3 32.9 1.0
HO2' B:C21 4.3 44.6 1.0
C4 B:G25 4.4 31.4 1.0
H5' B:C22 4.4 32.6 1.0
O B:HOH261 4.4 34.1 1.0
O2 B:C21 4.5 31.1 1.0
O2' B:C21 4.6 37.3 1.0
O6 B:G26 4.6 28.8 1.0
O2 B:U24 4.8 25.6 1.0
OP1 B:G25 4.8 34.8 1.0
N1 B:A10 4.8 36.4 1.0
H1' B:U24 4.9 39.9 1.0
C2' B:C21 4.9 31.7 1.0
H4' B:C22 4.9 33.7 1.0
O4' B:C22 4.9 26.0 1.0
N7 B:G26 5.0 32.0 1.0
H61 B:A10 5.0 42.1 1.0

Reference:

E.Menichelli, B.J.Lam, Y.Wang, V.S.Wang, J.Shaffer, K.F.Tjhung, B.Bursulaya, T.N.Nguyen, T.Vo, P.B.Alper, C.S.Mcallister, D.H.Jones, G.Spraggon, P.Y.Michellys, J.Joslin, G.F.Joyce, J.Rogers. Discovery of Small Molecules That Target A Tertiary-Structured Rna. Proc.Natl.Acad.Sci.Usa V. 119 17119 2022.
ISSN: ESSN 1091-6490
PubMed: 36413497
DOI: 10.1073/PNAS.2213117119
Page generated: Thu Oct 3 23:32:36 2024

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