Calcium in PDB 2qw1: Glucose/Galactose Binding Protein Bound to 3-O-Methyl D-Glucose

The structure of Glucose/Galactose Binding Protein Bound to 3-O-Methyl D-Glucose, PDB code: 2qw1 was solved by M.J.Borrok, L.L.Kiessling, K.T.Forest, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	40.00 / 1.70
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	56.930, 74.660, 110.070, 90.00, 90.00, 90.00
R / Rfree (%)	18 / 20.4

The structure of Glucose/Galactose Binding Protein Bound to 3-O-Methyl D-Glucose also contains other interesting chemical elements:

Sodium

(Na)

2 atoms

The binding sites of Calcium atom in the Glucose/Galactose Binding Protein Bound to 3-O-Methyl D-Glucose (pdb code 2qw1). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total only one binding site of Calcium was determined in the Glucose/Galactose Binding Protein Bound to 3-O-Methyl D-Glucose, PDB code: 2qw1:

Calcium binding site 1 out of 1 in the Glucose/Galactose Binding Protein Bound to 3-O-Methyl D-Glucose


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Glucose/Galactose Binding Protein Bound to 3-O-Methyl D-Glucose within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca311 b:8.4 occ:1.00 OD1 A:ASP134 2.2 9.5 1.0 O A:GLN140 2.3 8.2 1.0 OE1 A:GLN142 2.3 8.7 1.0 OD1 A:ASN136 2.4 10.0 1.0 OD2 A:ASP138 2.4 9.1 1.0 OE2 A:GLU205 2.5 7.7 1.0 OE1 A:GLU205 2.5 8.2 1.0 CD A:GLU205 2.8 10.5 1.0 CG A:ASP138 3.4 10.5 1.0 CG A:ASN136 3.5 11.2 1.0 CG A:ASP134 3.5 11.3 1.0 C A:GLN140 3.5 8.0 1.0 CD A:GLN142 3.5 8.2 1.0 OD1 A:ASP138 3.9 10.5 1.0 N A:GLN140 4.0 8.7 1.0 ND2 A:ASN136 4.0 11.4 1.0 NE2 A:GLN142 4.1 7.7 1.0 N A:ASP138 4.1 11.4 1.0 OD2 A:ASP134 4.2 12.8 1.0 CA A:GLN140 4.2 8.6 1.0 N A:GLN142 4.3 6.2 1.0 CG A:GLU205 4.3 8.1 1.0 CH2 A:TRP127 4.3 9.1 1.0 N A:ASN136 4.4 10.7 1.0 CA A:ASP134 4.4 8.9 1.0 CB A:ASP138 4.5 10.8 1.0 CB A:ASP134 4.5 8.8 1.0 N A:ILE141 4.5 7.4 1.0 O A:HOH390 4.5 14.9 1.0 C A:ASP134 4.6 9.9 1.0 N A:LYS137 4.6 11.1 1.0 N A:GLY139 4.6 9.4 1.0 CB A:GLN140 4.6 9.4 1.0 CA A:ILE141 4.6 6.7 1.0 CB A:ASN136 4.6 10.9 1.0 CA A:ASP138 4.7 11.1 1.0 N A:LEU135 4.7 9.2 1.0 CG A:GLN142 4.7 6.8 1.0 CA A:ASN136 4.8 11.2 1.0 C A:ASN136 4.8 11.5 1.0 C A:ILE141 4.8 6.3 1.0 CZ2 A:TRP127 4.8 9.2 1.0 CB A:GLN142 4.9 6.5 1.0 C A:ASP138 4.9 10.5 1.0

M.J.Borrok, Y.Zhu, K.T.Forest, L.L.Kiessling. Structure-Based Design of A Periplasmic Binding Protein Antagonist That Prevents Domain Closure. Acs Chem.Biol. V. 4 447 2009.
ISSN: ISSN 1554-8929
PubMed: 19348466
DOI: 10.1021/CB900021Q