Calcium in PDB 2fw0: Apo Open Form of Glucose/Galactose Binding Protein

The structure of Apo Open Form of Glucose/Galactose Binding Protein, PDB code: 2fw0 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)	19.99 / 1.55
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	56.800, 70.300, 112.100, 90.00, 90.00, 90.00
R / Rfree (%)	16.5 / 17.8

The structure of Apo Open Form of Glucose/Galactose Binding Protein also contains other interesting chemical elements:

Sodium

(Na)

3 atoms

The binding sites of Calcium atom in the Apo Open Form of Glucose/Galactose Binding Protein (pdb code 2fw0). 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 Apo Open Form of Glucose/Galactose Binding Protein, PDB code: 2fw0:

Calcium binding site 1 out of 1 in the Apo Open Form of Glucose/Galactose Binding Protein


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Apo Open Form of Glucose/Galactose Binding Protein within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca310 b:7.2 occ:1.00 OD1 A:ASP134 2.3 8.8 1.0 OE1 A:GLN142 2.3 8.1 1.0 O A:GLN140 2.4 7.9 1.0 OD1 A:ASN136 2.4 8.7 1.0 OD2 A:ASP138 2.4 9.1 1.0 OE2 A:GLU205 2.5 7.3 1.0 OE1 A:GLU205 2.6 8.1 1.0 CD A:GLU205 2.9 6.2 1.0 CG A:ASP138 3.4 9.7 1.0 CG A:ASP134 3.5 7.9 1.0 CD A:GLN142 3.5 7.7 1.0 CG A:ASN136 3.5 9.2 1.0 C A:GLN140 3.5 7.0 1.0 OD1 A:ASP138 3.8 10.2 1.0 N A:GLN140 4.0 9.1 1.0 ND2 A:ASN136 4.1 9.0 1.0 NE2 A:GLN142 4.1 9.2 1.0 OD2 A:ASP134 4.2 10.7 1.0 N A:GLN142 4.2 5.7 1.0 N A:ASP138 4.2 9.7 1.0 CH2 A:TRP127 4.2 7.9 1.0 CA A:GLN140 4.3 8.2 1.0 CA A:ASP134 4.3 7.7 1.0 N A:ASN136 4.4 9.6 1.0 CG A:GLU205 4.4 6.9 1.0 O A:HOH539 4.5 10.8 1.0 CB A:ASP134 4.5 8.4 1.0 N A:ILE141 4.5 6.5 1.0 CB A:ASP138 4.5 9.2 1.0 CA A:ILE141 4.6 5.7 1.0 C A:ASP134 4.6 9.2 1.0 CB A:GLN140 4.6 9.6 1.0 N A:LEU135 4.7 8.9 1.0 N A:GLY139 4.7 9.6 1.0 CB A:ASN136 4.7 10.4 1.0 CG A:GLN142 4.7 7.8 1.0 N A:LYS137 4.7 10.2 1.0 CA A:ASP138 4.7 9.8 1.0 CB A:GLN142 4.8 5.8 1.0 C A:ILE141 4.8 6.2 1.0 CZ2 A:TRP127 4.8 8.2 1.0 CA A:ASN136 4.9 10.0 1.0 C A:ASN136 4.9 10.7 1.0 C A:ASP138 4.9 9.9 1.0

M.J.Borrok, L.L.Kiessling, K.T.Forest. Conformational Changes of Glucose/Galactose-Binding Protein Illuminated By Open, Unliganded, and Ultra-High-Resolution Ligand-Bound Structures. Protein Sci. V. 16 1032 2007.
ISSN: ISSN 0961-8368
PubMed: 17473016
DOI: 10.1110/PS.062707807