Calcium in PDB 1qgd: Transketolase From Escherichia Coli

All present enzymatic activity of Transketolase From Escherichia Coli:
2.2.1.1;

The structure of Transketolase From Escherichia Coli, PDB code: 1qgd was solved by M.N.Isupov, J.A.Littlechild, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	10.00 / 1.90
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	74.850, 126.000, 151.050, 90.00, 90.00, 90.00
R / Rfree (%)	13.2 / 17.6

The binding sites of Calcium atom in the Transketolase From Escherichia Coli (pdb code 1qgd). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the Transketolase From Escherichia Coli, PDB code: 1qgd:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the Transketolase From Escherichia Coli


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Transketolase From Escherichia Coli within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca675 b:13.0 occ:1.00 O1A A:TPP670 2.3 16.8 1.0 O2B A:TPP670 2.3 14.3 1.0 O A:ILE187 2.3 15.3 1.0 OD2 A:ASP155 2.3 12.2 1.0 OD1 A:ASN185 2.4 12.4 1.0 O A:HOH706 2.4 12.4 1.0 CG A:ASN185 3.3 15.9 1.0 CG A:ASP155 3.4 11.1 1.0 PA A:TPP670 3.5 19.0 1.0 C A:ILE187 3.5 14.9 1.0 PB A:TPP670 3.6 18.8 1.0 ND2 A:ASN185 3.6 14.2 1.0 O3A A:TPP670 3.8 18.4 1.0 CB A:ASP155 3.8 10.6 1.0 N A:ILE187 4.1 13.2 1.0 N A:ASP155 4.1 8.6 1.0 O1B A:TPP670 4.1 21.7 1.0 CA A:ILE187 4.3 15.9 1.0 O7 A:TPP670 4.4 31.3 1.0 OD1 A:ASP155 4.4 14.2 1.0 O A:ASP183 4.5 11.0 1.0 N A:SER188 4.5 12.8 1.0 O A:HOH726 4.6 15.3 1.0 O2A A:TPP670 4.6 26.4 1.0 CA A:ASP155 4.6 7.4 1.0 CA A:SER188 4.6 11.3 1.0 CB A:ILE187 4.7 22.7 1.0 CB A:ASN185 4.7 8.9 1.0 O3B A:TPP670 4.8 18.5 1.0 N A:ASN185 4.8 11.3 1.0 N A:GLY186 4.8 13.8 1.0 C A:ASN185 5.0 14.7 1.0

Calcium binding site 2 out of 2 in the Transketolase From Escherichia Coli


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Transketolase From Escherichia Coli within 5.0Å range: probe atom residue distance (Å) B Occ B:Ca675 b:14.5 occ:1.00 O2B B:TPP670 2.2 12.9 1.0 O1A B:TPP670 2.3 13.9 1.0 O B:ILE187 2.4 15.2 1.0 OD1 B:ASN185 2.4 12.9 1.0 OD2 B:ASP155 2.4 14.3 1.0 O B:HOH712 2.4 12.4 1.0 CG B:ASN185 3.3 16.5 1.0 CG B:ASP155 3.4 16.4 1.0 PB B:TPP670 3.4 18.9 1.0 PA B:TPP670 3.5 21.1 1.0 ND2 B:ASN185 3.5 13.8 1.0 C B:ILE187 3.6 17.4 1.0 O3A B:TPP670 3.6 18.4 1.0 CB B:ASP155 3.8 9.2 1.0 N B:ILE187 4.1 13.6 1.0 O1B B:TPP670 4.1 19.6 1.0 N B:ASP155 4.1 8.1 1.0 CA B:ILE187 4.3 15.1 1.0 O7 B:TPP670 4.4 26.8 1.0 O B:HOH746 4.4 17.0 1.0 OD1 B:ASP155 4.5 13.2 1.0 O B:ASP183 4.5 13.2 1.0 O2A B:TPP670 4.5 25.3 1.0 N B:SER188 4.6 14.9 1.0 CA B:ASP155 4.6 8.5 1.0 O3B B:TPP670 4.7 16.7 1.0 CA B:SER188 4.7 15.1 1.0 CB B:ASN185 4.7 9.3 1.0 CB B:ILE187 4.7 18.2 1.0 N B:ASN185 4.9 11.9 1.0 N B:GLY186 4.9 14.7 1.0 C B:ASN185 5.0 16.3 1.0

M.N.Isupov, M.P.Rupprecht, K.S.Wilson, Z.Dauter, J.A.Littlechild. Crystal Structure of Escherichia Coli Transketolase To Be Published.