Calcium in PDB 4ktp: Crystal Structure of 2-O-Alpha-Glucosylglycerol Phosphorylase in Complex with Glucose

The structure of Crystal Structure of 2-O-Alpha-Glucosylglycerol Phosphorylase in Complex with Glucose, PDB code: 4ktp was solved by K.K.Touhara, T.Nihira, M.Kitaoka, H.Nakai, S.Fushinobu, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	19.94 / 1.90
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	206.076, 76.959, 145.766, 90.00, 128.39, 90.00
R / Rfree (%)	17 / 20.6

The binding sites of Calcium atom in the Crystal Structure of 2-O-Alpha-Glucosylglycerol Phosphorylase in Complex with Glucose (pdb code 4ktp). 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 2-O-Alpha-Glucosylglycerol Phosphorylase in Complex with Glucose, PDB code: 4ktp:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the Crystal Structure of 2-O-Alpha-Glucosylglycerol Phosphorylase in Complex with Glucose


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 2-O-Alpha-Glucosylglycerol Phosphorylase in Complex with Glucose within 5.0Å range: probe atom residue distance (Å) B Occ B:Ca803 b:29.4 occ:1.00 OE1 B:GLN264 2.3 34.7 1.0 O B:HOH1286 2.3 29.5 1.0 O B:HOH1302 2.4 18.6 1.0 OE2 B:GLU268 2.5 33.1 1.0 O B:HOH1307 2.6 34.8 1.0 OE1 B:GLU268 2.9 33.5 1.0 CD B:GLU268 2.9 23.6 1.0 CD B:GLN264 3.3 38.8 1.0 CG B:GLN264 3.9 30.3 1.0 NE2 B:GLN264 4.3 36.6 1.0 CB B:GLN264 4.5 26.9 1.0 CG B:GLU268 4.5 31.6 1.0

Calcium binding site 2 out of 2 in the Crystal Structure of 2-O-Alpha-Glucosylglycerol Phosphorylase in Complex with Glucose


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 2-O-Alpha-Glucosylglycerol Phosphorylase in Complex with Glucose within 5.0Å range: probe atom residue distance (Å) B Occ B:Ca804 b:45.9 occ:1.00 O B:HOH1309 2.3 39.6 1.0 O B:HOH1308 2.4 38.9 1.0 OE1 B:GLU608 2.4 39.8 1.0 OE2 B:GLU612 2.5 27.6 1.0 OE1 B:GLU612 2.7 36.7 1.0 CD B:GLU612 2.9 34.4 1.0 CD B:GLU608 3.5 34.7 1.0 CG B:GLU608 4.0 20.6 1.0 CG B:GLU612 4.5 24.0 1.0 OE2 B:GLU608 4.5 38.6 1.0 O B:HOH1195 4.6 27.8 1.0 NZ B:LYS605 4.6 37.5 1.0 NZ B:LYS638 4.7 25.8 1.0

K.K.Touhara, T.Nihira, M.Kitaoka, H.Nakai, S.Fushinobu. Structural Basis For Reversible Phosphorolysis and Hydrolysis Reactions of 2-O-Alpha-Glucosylglycerol Phosphorylase J.Biol.Chem. 2014.
ISSN: ESSN 1083-351X
PubMed: 24828502
DOI: 10.1074/JBC.M114.573212