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Magnesium in PDB 7tdc: Crystal Structure of the E. Coli Thim Riboswitch in Complex with Thiamine Bisphosphonate, Calcium Ions

Protein crystallography data

The structure of Crystal Structure of the E. Coli Thim Riboswitch in Complex with Thiamine Bisphosphonate, Calcium Ions, PDB code: 7tdc was solved by A.Nuthanakanti, A.Serganov, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 56.30 / 2.46
Space group P 32 1 2
Cell size a, b, c (Å), α, β, γ (°) 65.006, 65.006, 101.274, 90, 90, 120
R / Rfree (%) 21.1 / 24.7

Other elements in 7tdc:

The structure of Crystal Structure of the E. Coli Thim Riboswitch in Complex with Thiamine Bisphosphonate, Calcium Ions also contains other interesting chemical elements:

Calcium (Ca) 1 atom

Magnesium Binding Sites:

The binding sites of Magnesium atom in the Crystal Structure of the E. Coli Thim Riboswitch in Complex with Thiamine Bisphosphonate, Calcium Ions (pdb code 7tdc). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 4 binding sites of Magnesium where determined in the Crystal Structure of the E. Coli Thim Riboswitch in Complex with Thiamine Bisphosphonate, Calcium Ions, PDB code: 7tdc:
Jump to Magnesium binding site number: 1; 2; 3; 4;

Magnesium binding site 1 out of 4 in 7tdc

Go back to Magnesium Binding Sites List in 7tdc
Magnesium binding site 1 out of 4 in the Crystal Structure of the E. Coli Thim Riboswitch in Complex with Thiamine Bisphosphonate, Calcium Ions


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 the E. Coli Thim Riboswitch in Complex with Thiamine Bisphosphonate, Calcium Ions within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Mg102

b:101.6
occ:1.00
O A:HOH314 2.1 104.9 1.0
OP1 A:A69 2.7 85.7 1.0
P A:A69 4.1 88.8 1.0
OP2 A:A69 4.8 96.4 1.0
O3' A:U68 4.8 86.3 1.0

Magnesium binding site 2 out of 4 in 7tdc

Go back to Magnesium Binding Sites List in 7tdc
Magnesium binding site 2 out of 4 in the Crystal Structure of the E. Coli Thim Riboswitch in Complex with Thiamine Bisphosphonate, Calcium Ions


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 the E. Coli Thim Riboswitch in Complex with Thiamine Bisphosphonate, Calcium Ions within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Mg104

b:83.9
occ:1.00
O A:HOH311 2.1 88.5 1.0
O A:HOH307 2.1 90.4 1.0
O A:HOH310 2.1 93.5 1.0
O A:HOH303 2.1 89.8 1.0
O1A A:GMI101 2.3 81.7 1.0
O2B A:GMI101 2.4 87.2 1.0
PA A:GMI101 3.6 82.5 1.0
O2' A:G72 3.7 86.2 1.0
PB A:GMI101 3.8 81.8 1.0
N7 A:A75 4.1 92.1 1.0
N4 A:C77 4.2 88.7 1.0
O2A A:GMI101 4.3 85.5 1.0
C3A A:GMI101 4.3 77.8 1.0
O3B A:GMI101 4.4 90.0 1.0
N7 A:G76 4.4 95.6 1.0
O6 A:G76 4.6 101.1 1.0
O A:HOH306 4.6 87.9 1.0
O7 A:GMI101 4.7 81.6 1.0
OP2 A:A75 4.8 95.3 1.0
C8 A:A75 4.8 91.3 1.0
N6 A:A75 4.8 88.4 1.0
C5 A:A75 4.9 94.0 1.0
O1B A:GMI101 4.9 90.3 1.0
C2' A:G72 5.0 90.8 1.0

Magnesium binding site 3 out of 4 in 7tdc

Go back to Magnesium Binding Sites List in 7tdc
Magnesium binding site 3 out of 4 in the Crystal Structure of the E. Coli Thim Riboswitch in Complex with Thiamine Bisphosphonate, Calcium Ions


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 3 of Crystal Structure of the E. Coli Thim Riboswitch in Complex with Thiamine Bisphosphonate, Calcium Ions within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Mg105

b:77.6
occ:1.00
O A:HOH305 2.1 81.4 1.0
O A:HOH304 2.1 86.2 1.0
OP1 A:C63 2.5 82.8 1.0
OP2 A:U64 2.7 83.6 1.0
P A:U64 3.7 87.4 1.0
OP1 A:U64 3.7 84.8 1.0
P A:C63 3.7 82.9 1.0
OP2 A:C63 4.1 87.3 1.0
O3' A:U62 4.6 84.7 1.0
O3' A:C63 4.7 85.8 1.0
O5' A:U64 4.8 84.3 1.0
O5' A:C63 4.9 88.7 1.0

Magnesium binding site 4 out of 4 in 7tdc

Go back to Magnesium Binding Sites List in 7tdc
Magnesium binding site 4 out of 4 in the Crystal Structure of the E. Coli Thim Riboswitch in Complex with Thiamine Bisphosphonate, Calcium Ions


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 4 of Crystal Structure of the E. Coli Thim Riboswitch in Complex with Thiamine Bisphosphonate, Calcium Ions within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Mg106

b:115.5
occ:1.00
OP2 A:A35 2.2 116.9 1.0
OP2 A:A34 2.9 129.9 1.0
P A:A35 3.6 125.1 1.0
N7 A:G36 3.9 98.2 1.0
P A:A34 3.9 134.0 1.0
O5' A:A35 3.9 115.4 1.0
O6 A:G36 4.1 96.9 1.0
N7 A:A35 4.1 108.9 1.0
OP1 A:A34 4.2 115.9 1.0
C8 A:A35 4.2 111.3 1.0
O5' A:A34 4.5 126.9 1.0
C3' A:A34 4.5 123.2 1.0
O3' A:A34 4.6 121.1 1.0
OP1 A:A35 4.6 124.3 1.0
C5 A:G36 4.7 96.2 1.0
C5' A:A34 4.7 122.8 1.0
C6 A:G36 4.7 95.4 1.0
C8 A:G36 4.9 97.5 1.0

Reference:

M.J.Zeller, A.Nuthanakanti, K.Li, J.Aube, A.Serganov, K.M.Weeks. Subsite Ligand Recognition and Cooperativity in the Tpp Riboswitch: Implications For Fragment-Linking in Rna Ligand Discovery. Acs Chem.Biol. V. 17 438 2022.
ISSN: ESSN 1554-8937
PubMed: 35060698
DOI: 10.1021/ACSCHEMBIO.1C00880
Page generated: Thu Oct 3 09:05:55 2024

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