Calcium in PDB 7xr0: Crystal Structure of T2R-Ttl-27A Complex

The structure of Crystal Structure of T2R-Ttl-27A Complex, PDB code: 7xr0 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)	19.88 / 2.70
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	105.222, 157.666, 181.74, 90, 90, 90
R / Rfree (%)	20.5 / 24.7

The structure of Crystal Structure of T2R-Ttl-27A Complex also contains other interesting chemical elements:

Chlorine	(Cl)	3 atoms
Magnesium	(Mg)	3 atoms
Fluorine	(F)	2 atoms

The binding sites of Calcium atom in the Crystal Structure of T2R-Ttl-27A Complex (pdb code 7xr0). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the Crystal Structure of T2R-Ttl-27A Complex, PDB code: 7xr0:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the Crystal Structure of T2R-Ttl-27A Complex


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Crystal Structure of T2R-Ttl-27A Complex within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca503 b:76.6 occ:1.00 OD2 A:ASP39 2.2 65.7 1.0 OG1 A:THR41 2.3 89.4 1.0 O A:THR41 2.3 79.3 1.0 OE2 A:GLU55 2.3 75.8 1.0 OD1 A:ASP39 2.4 70.6 1.0 O A:GLY44 2.5 59.1 1.0 OE1 A:GLU55 2.6 72.3 1.0 CG A:ASP39 2.6 66.2 1.0 CD A:GLU55 2.8 76.7 1.0 C A:THR41 3.4 77.1 1.0 C A:GLY44 3.5 71.9 1.0 CB A:THR41 3.6 79.3 1.0 CA A:THR41 3.9 79.7 1.0 CB A:ASP39 4.1 66.6 1.0 CG A:GLU55 4.3 69.3 1.0 N A:THR41 4.3 72.2 1.0 CZ A:PHE49 4.3 66.0 1.0 N A:GLY45 4.3 69.7 1.0 N A:GLY44 4.3 68.8 1.0 CA A:GLY45 4.4 71.8 1.0 CA A:GLY44 4.4 76.8 1.0 CG2 A:THR41 4.5 74.5 1.0 N A:ILE42 4.5 70.6 1.0 NE2 A:HIS61 4.6 64.9 1.0 OD1 A:ASN50 4.6 67.0 1.0 ND2 A:ASN50 4.7 75.9 1.0 CE1 A:PHE49 4.8 62.3 1.0 OD1 A:ASP47 4.8 76.3 1.0 CA A:ASP39 4.9 71.3 1.0 CA A:ILE42 4.9 72.8 1.0

Calcium binding site 2 out of 2 in the Crystal Structure of T2R-Ttl-27A Complex


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Crystal Structure of T2R-Ttl-27A Complex within 5.0Å range: probe atom residue distance (Å) B Occ C:Ca503 b:49.5 occ:1.00 OE2 C:GLU55 2.3 54.0 1.0 O C:THR41 2.3 53.3 1.0 O C:GLY44 2.4 54.5 1.0 OD2 C:ASP39 2.4 42.5 1.0 OG1 C:THR41 2.6 61.5 1.0 OE1 C:GLU55 2.6 48.8 1.0 OD1 C:ASP39 2.7 59.7 1.0 CD C:GLU55 2.8 45.1 1.0 CG C:ASP39 2.9 42.9 1.0 C C:THR41 3.4 48.4 1.0 CB C:THR41 3.5 53.6 1.0 C C:GLY44 3.5 55.5 1.0 CA C:THR41 3.8 53.4 1.0 OD2 C:ASP47 4.1 66.4 1.0 N C:THR41 4.1 50.7 1.0 N C:GLY45 4.3 52.2 1.0 CA C:GLY45 4.3 51.3 1.0 CG C:GLU55 4.4 33.7 1.0 CB C:ASP39 4.4 46.7 1.0 OD1 C:ASN50 4.5 44.3 1.0 N C:GLY44 4.5 52.9 1.0 CA C:GLY44 4.5 53.9 1.0 N C:ILE42 4.6 52.2 1.0 CZ C:PHE49 4.7 43.6 1.0 NE2 C:HIS61 4.7 36.5 1.0 CG2 C:THR41 4.8 48.0 1.0 CE1 C:PHE49 4.8 44.5 1.0 ND2 C:ASN50 5.0 38.8 1.0

T.Lun, W.Chengyong. Crystal Structure of T2R-Ttl-27A Complex To Be Published.