Magnesium in PDB 7xr1: Crystal Structure of T2R-Ttl-3A Complex

The structure of Crystal Structure of T2R-Ttl-3A Complex, PDB code: 7xr1 was solved by T.Lun, C.Y.Wu, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	56.35 / 2.81
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	105.096, 157.528, 181.017, 90, 90, 90
R / Rfree (%)	20.3 / 24.6

The structure of Crystal Structure of T2R-Ttl-3A Complex also contains other interesting chemical elements:

Chlorine	(Cl)	3 atoms
Calcium	(Ca)	2 atoms
Fluorine	(F)	2 atoms

The binding sites of Magnesium atom in the Crystal Structure of T2R-Ttl-3A Complex (pdb code 7xr1). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 3 binding sites of Magnesium where determined in the Crystal Structure of T2R-Ttl-3A Complex, PDB code: 7xr1:
Jump to Magnesium binding site number: 1; 2; 3;

Magnesium binding site 1 out of 3 in the Crystal Structure of T2R-Ttl-3A Complex


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 T2R-Ttl-3A Complex within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg502 b:34.9 occ:1.00 O1G A:GTP501 2.1 36.7 1.0 O1B A:GTP501 2.6 29.2 1.0 PG A:GTP501 3.3 41.8 1.0 OE2 A:GLU71 3.4 55.8 1.0 PB A:GTP501 3.6 31.5 1.0 O2G A:GTP501 3.7 43.0 1.0 O3B A:GTP501 3.8 40.0 1.0 OD2 A:ASP69 4.0 38.8 1.0 CG A:GLU71 4.1 32.5 1.0 O3A A:GTP501 4.1 32.3 1.0 OD1 A:ASP69 4.2 35.1 1.0 CB A:ASP98 4.2 37.7 1.0 OD2 A:ASP98 4.2 44.8 1.0 CD A:GLU71 4.2 43.3 1.0 CB A:GLN11 4.2 30.6 1.0 CG A:ASP69 4.5 34.9 1.0 N A:GLN11 4.5 31.4 1.0 CG A:ASP98 4.6 39.6 1.0 NE2 A:GLN11 4.6 34.1 1.0 O3G A:GTP501 4.6 28.5 1.0 NZ B:LYS252 4.8 54.8 1.0 O2B A:GTP501 4.9 36.3 1.0 O1A A:GTP501 5.0 31.3 1.0 CA A:GLN11 5.0 32.8 1.0

Magnesium binding site 2 out of 3 in the Crystal Structure of T2R-Ttl-3A Complex


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 T2R-Ttl-3A Complex within 5.0Å range: probe atom residue distance (Å) B Occ B:Mg502 b:33.4 occ:1.00 O1A B:GDP501 2.4 31.2 1.0 OE1 B:GLN11 2.5 44.8 1.0 OD2 B:ASP177 3.3 50.0 1.0 PA B:GDP501 3.6 26.0 1.0 CD B:GLN11 3.7 50.5 1.0 O3A B:GDP501 3.8 28.5 1.0 OD1 B:ASN99 3.9 30.5 1.0 C5' B:GDP501 4.2 24.5 1.0 O5' B:GDP501 4.3 22.5 1.0 OE1 C:GLU254 4.4 50.9 1.0 CB B:GLN11 4.4 30.7 1.0 CG B:ASP177 4.4 43.0 1.0 NE2 B:GLN11 4.6 49.8 1.0 CG B:GLN11 4.6 39.7 1.0 O2A B:GDP501 4.7 21.2 1.0 CG B:ASN99 4.9 21.9 1.0 O1B B:GDP501 4.9 25.8 1.0 CB B:ASP177 5.0 36.4 1.0 PB B:GDP501 5.0 25.8 1.0 C8 B:GDP501 5.0 26.3 1.0 ND2 B:ASN99 5.0 26.0 1.0

Magnesium binding site 3 out of 3 in the Crystal Structure of T2R-Ttl-3A Complex


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 T2R-Ttl-3A Complex within 5.0Å range: probe atom residue distance (Å) B Occ C:Mg502 b:36.8 occ:1.00 O1G C:GTP501 2.1 29.9 1.0 O1B C:GTP501 2.5 32.0 1.0 PG C:GTP501 3.5 26.9 1.0 OD2 C:ASP98 3.6 40.3 1.0 OE2 C:GLU71 3.6 47.0 1.0 PB C:GTP501 3.7 23.4 1.0 NZ D:LYS252 3.8 37.7 1.0 CG C:GLU71 4.0 26.8 1.0 O3B C:GTP501 4.1 31.3 1.0 O2G C:GTP501 4.1 34.5 1.0 OD2 C:ASP69 4.2 32.8 1.0 O3A C:GTP501 4.2 31.0 1.0 CB C:ASP98 4.2 30.4 1.0 CB C:GLN11 4.3 25.4 1.0 CD C:GLU71 4.3 39.2 1.0 CG C:ASP98 4.4 37.9 1.0 OD1 C:ASP69 4.5 34.0 1.0 OE1 C:GLN11 4.5 33.8 1.0 O3G C:GTP501 4.7 28.1 1.0 CG C:ASP69 4.8 31.0 1.0 N C:GLN11 4.8 20.2 1.0 CE D:LYS252 4.9 44.1 1.0 O2B C:GTP501 4.9 26.5 1.0

T.Lun, W.Chengyong. Crystal Structure of T2R-Ttl-3A Complex To Be Published.