Calcium in PDB 7xqy: Crystal Structure of T2R-Ttl-15 Complex

The structure of Crystal Structure of T2R-Ttl-15 Complex, PDB code: 7xqy was solved by T.Lun, W.Chengyong, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	41.58 / 2.35
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	105.42, 158.33, 180.98, 90, 90, 90
R / Rfree (%)	19.9 / 23.6

The structure of Crystal Structure of T2R-Ttl-15 Complex also contains other interesting chemical elements:

Chlorine	(Cl)	3 atoms
Magnesium	(Mg)	3 atoms

The binding sites of Calcium atom in the Crystal Structure of T2R-Ttl-15 Complex (pdb code 7xqy). 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-15 Complex, PDB code: 7xqy:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the Crystal Structure of T2R-Ttl-15 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-15 Complex within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca503 b:75.4 occ:1.00 O A:THR41 2.1 88.8 1.0 OD1 A:ASP39 2.3 77.0 1.0 OD2 A:ASP39 2.3 75.7 1.0 O A:GLY44 2.4 69.3 1.0 OE1 A:GLU55 2.4 80.5 1.0 OE2 A:GLU55 2.5 72.1 1.0 CG A:ASP39 2.6 74.0 1.0 CD A:GLU55 2.8 79.9 1.0 OG1 A:THR41 2.9 84.0 1.0 C A:THR41 3.2 86.7 1.0 CB A:THR41 3.5 88.9 1.0 C A:GLY44 3.5 75.2 1.0 CA A:THR41 3.8 82.6 1.0 CB A:ASP39 4.1 71.5 1.0 N A:THR41 4.2 84.4 1.0 N A:GLY44 4.3 77.7 1.0 CG A:GLU55 4.3 78.7 1.0 CZ A:PHE49 4.3 69.0 1.0 N A:ILE42 4.4 83.2 1.0 N A:GLY45 4.4 79.8 1.0 CA A:GLY44 4.4 79.9 1.0 CA A:GLY45 4.5 77.6 1.0 NE2 A:HIS61 4.5 75.1 1.0 CA A:ILE42 4.7 86.3 1.0 OD1 A:ASN50 4.7 73.4 1.0 ND2 A:ASN50 4.8 83.3 1.0 OD1 A:ASP47 4.8 85.6 1.0 CE1 A:PHE49 4.9 70.3 1.0 CA A:ASP39 4.9 82.1 1.0 CG2 A:THR41 4.9 87.0 1.0 C A:ASP39 5.0 84.1 1.0 C A:ILE42 5.0 79.1 1.0

Calcium binding site 2 out of 2 in the Crystal Structure of T2R-Ttl-15 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-15 Complex within 5.0Å range: probe atom residue distance (Å) B Occ C:Ca503 b:52.7 occ:1.00 O C:THR41 2.3 63.2 1.0 OD2 C:ASP39 2.4 48.4 1.0 O C:GLY44 2.5 50.0 1.0 OE1 C:GLU55 2.5 51.4 1.0 OG1 C:THR41 2.5 56.6 1.0 OE2 C:GLU55 2.5 49.8 1.0 OD1 C:ASP39 2.7 58.4 1.0 O C:HOH604 2.8 46.1 1.0 CD C:GLU55 2.8 52.7 1.0 CG C:ASP39 2.9 50.1 1.0 C C:THR41 3.4 59.4 1.0 CB C:THR41 3.4 63.5 1.0 C C:GLY44 3.5 57.7 1.0 CA C:THR41 3.8 52.6 1.0 N C:THR41 4.1 59.2 1.0 O C:HOH607 4.2 51.3 1.0 CA C:GLY45 4.2 60.5 1.0 N C:GLY45 4.2 64.0 1.0 OD2 C:ASP47 4.3 60.3 1.0 CB C:ASP39 4.4 52.8 1.0 CG C:GLU55 4.4 47.0 1.0 N C:GLY44 4.4 55.9 1.0 CA C:GLY44 4.5 60.4 1.0 N C:ILE42 4.5 62.9 1.0 NE2 C:HIS61 4.6 51.4 1.0 OD1 C:ASN50 4.6 46.5 1.0 CZ C:PHE49 4.7 45.2 1.0 CG2 C:THR41 4.8 46.7 1.0 CE1 C:PHE49 4.9 52.3 1.0 ND2 C:ASN50 4.9 44.6 1.0 CA C:ILE42 5.0 54.2 1.0

T.Lun, W.Chengyong. Crystal Structure of T2R-Ttl-15 Complex To Be Published.