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

The structure of Crystal Structure of T2R-Ttl-27A Complex, PDB code: 7xqx 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)	72.19 / 3.36
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	105.386, 157.49, 180.668, 90, 90, 90
R / Rfree (%)	19.7 / 24.5

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 7xqx). 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: 7xqx:
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:100.1 occ:1.00 OE2 A:GLU55 2.3 88.5 1.0 OD1 A:ASP39 2.3 70.6 1.0 OD2 A:ASP39 2.3 73.6 1.0 OG1 A:THR41 2.4 92.1 1.0 O A:THR41 2.4 87.6 1.0 O A:GLY44 2.6 76.2 1.0 CG A:ASP39 2.6 71.2 1.0 OE1 A:GLU55 2.6 77.2 1.0 CD A:GLU55 2.8 83.4 1.0 C A:THR41 3.5 86.2 1.0 C A:GLY44 3.7 69.7 1.0 CB A:THR41 3.7 83.9 1.0 CZ A:PHE49 4.0 81.9 1.0 CA A:THR41 4.1 83.8 1.0 CB A:ASP39 4.1 67.1 1.0 CG A:GLU55 4.3 77.3 1.0 CE1 A:PHE49 4.4 76.2 1.0 N A:THR41 4.4 90.8 1.0 N A:GLY45 4.4 71.2 1.0 CA A:GLY45 4.4 83.4 1.0 OD1 A:ASP47 4.5 88.9 1.0 OD1 A:ASN50 4.5 69.8 1.0 N A:GLY44 4.6 90.4 1.0 NE2 A:HIS61 4.7 85.0 1.0 N A:ILE42 4.7 85.5 1.0 CA A:GLY44 4.7 78.6 1.0 ND2 A:ASN50 4.7 93.7 1.0 CG2 A:THR41 4.7 80.3 1.0 CG A:ASP47 4.8 75.8 1.0 CA A:ASP39 4.9 78.0 1.0 OD2 A:ASP47 4.9 73.5 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:47.4 occ:1.00 OE2 C:GLU55 2.3 49.0 1.0 OG1 C:THR41 2.3 53.9 1.0 OD1 C:ASP39 2.5 55.4 1.0 OD2 C:ASP39 2.6 57.2 1.0 O C:GLY44 2.7 59.6 1.0 O C:THR41 2.7 64.5 1.0 OE1 C:GLU55 2.9 52.8 1.0 CG C:ASP39 2.9 51.0 1.0 CD C:GLU55 2.9 58.5 1.0 CB C:THR41 3.5 55.9 1.0 C C:GLY44 3.6 62.9 1.0 C C:THR41 3.7 66.0 1.0 OD2 C:ASP47 3.8 51.3 1.0 CA C:THR41 4.0 53.8 1.0 CA C:GLY45 4.1 65.2 1.0 N C:THR41 4.1 63.2 1.0 N C:GLY45 4.2 64.7 1.0 OD1 C:ASN50 4.3 55.1 1.0 CB C:ASP39 4.4 50.5 1.0 CG C:GLU55 4.4 45.4 1.0 CZ C:PHE49 4.5 50.6 1.0 CE1 C:PHE49 4.6 57.5 1.0 NE2 C:HIS61 4.6 48.9 1.0 CA C:GLY44 4.7 65.0 1.0 CG2 C:THR41 4.7 56.5 1.0 N C:GLY44 4.7 67.9 1.0 N C:ILE42 4.9 72.8 1.0 ND2 C:ASN50 5.0 57.2 1.0 CG C:ASP47 5.0 52.9 1.0

T.Lun, W.Yuxi. Crystal Structure of T2R-Tt Complex To Be Published.