MgRNA: Classification of Mg2+ binding sites in RNA crystal structures

	MgRNA: Classification of Mg²⁺ binding sites in RNA crystal structures
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List of Mg²⁺ binding sites in structure 3oi5

3OI5 (3.1Å) -- RIBOSOME/ANTIBIOTIC : Structure of the thermus thermophilus 70s ribosome complexed with telithromycin. this file contains the 50s subunit of one 70s ribosome. the entire crystal structure contains two 70s ribosomes.
List of all 328 Mg²⁺ binding sites in the PDB structure 3oi5 in the full dataset (switch to benchmark dataset)
Sites in the table can be ordered by the following fields by clicking the column header: "benchmark dataset", "Coordination Number", "Qv ^#", "Qs ^#", "Qe ^#", "Site type" or "Mg²⁺ ID"
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Mg²⁺ ion		Site type	Validation parameters
PDB ID	Mg²⁺ ID	Site type	Coordination Number	Qv ^#	Qs ^#	Qe ^#	benchmark dataset
3oi5	A2946	Mg²⁺ not bound by RNA	0	0	0	0.94	no
3oi5	A3039	Mg²⁺ not bound by RNA	0	0	0	0.91	no
3oi5	A2923	Mg²⁺ not bound by RNA	0	0	0	0.89	no
3oi5	A2943	Mg²⁺ not bound by RNA	0	0	0	0.84	no
3oi5	A2985	Mg²⁺ not bound by RNA	0	0	0	0.56	no
3oi5	A3018	Mg²⁺ not bound by RNA	0	0	0	0.97	no
3oi5	A3118	Mg²⁺ not bound by RNA	0	0	0	0.89	no
3oi5	A2910	Mg²⁺ not bound by RNA	0	0	0	0.98	no
3oi5	A2926	Mg²⁺ not bound by RNA	0	0	0	0.68	no
3oi5	A2932	Mg²⁺ not bound by RNA	0	0	0	0.90	no
3oi5	A2952	Mg²⁺ not bound by RNA	0	0	0	0.64	no
3oi5	A2960	Mg²⁺ not bound by RNA	0	0	0	0.87	no
3oi5	A2987	Mg²⁺ not bound by RNA	0	0	0	0.63	no
3oi5	A3006	Mg²⁺ not bound by RNA	0	0	0	1.00	no
3oi5	A3107	Mg²⁺ not bound by RNA	0	0	0	0.94	no
3oi5	A3099	Mg²⁺ not bound by RNA	0	0	0	0.96	no
3oi5	A3010	Mg²⁺ not bound by RNA	0	0	0	0.73	no
3oi5	A2909	Mg²⁺ not bound by RNA	0	0	0	0.79	no
3oi5	A2925	Mg²⁺ not bound by RNA	0	0	0	0.66	no
3oi5	A162	Mg²⁺ not bound by RNA	0	0	0	0.84	no

^# Validation parameters Q_v, Q_s, Q_e are defined in the range of 0 to 1, with 0 indicating poorest reliability and higher value indicating a more reliable site
Q_v measures the agreement of the inner-sphere bond valence summation with the oxidation state of Mg²⁺ (+2)
Q_s measures the geometrical symmetry of the ligands distribution around the Mg²⁺ required for octahedral geometry
Q_e measures the agreement of the isotropic atomic displacement (B) factor and occupancy of the Mg²⁺ compared to those of all atoms in its environment

Abbreviations used for Mg²⁺ "Site type"	Mg²⁺ inner-sphere ligands	Geometry for inner-sphere O_P	Mg²⁺ outer-sphere moieties
Site type used in the classification is a string abbreviation of ligand composition in Mg²⁺ coordination sphere
Abbreviations used for Mg²⁺ "Site type"	O_ph phosphate oxygen (OP1/OP2) O_r ribose oxygen (O2'/O4') or oxygen bridging phosphate and ribose (O3'/O5') O_b nucleobase oxygen N_b nucleobase nitrogen	*cis-* two O_P ligands adopt cis- isoform *trans-* two O_P ligands adopt trans- isoform *fac-* three O_P ligands adopt fac- isoform *mer-* three O_P ligands adopt mer- isoform	P_out phosphate moiety R_out ribose moiety B_out nucleobase moiety
Reference:	Zheng H, Shabalin IG, Handing KB, Bujnicki JM, Minor W. (2015) Magnesium binding architectures in RNA crystal structures: validation, binding preferences, classification, and motif detection. Nucleic Acid Research 43(7):3789-801 [Pubmed].

MgRNA: Classification of Mg2+ binding sites in RNA crystal structures

List of Mg2+ binding sites in structure 3oi5

MgRNA: Classification of Mg²⁺ binding sites in RNA crystal structures

List of Mg²⁺ binding sites in structure 3oi5