Calcium in PDB 2r5n: Crystal Structure of Transketolase From Escherichia Coli in Noncovalent Complex with Acceptor Aldose Ribose 5-Phosphate

All present enzymatic activity of Crystal Structure of Transketolase From Escherichia Coli in Noncovalent Complex with Acceptor Aldose Ribose 5-Phosphate:
2.2.1.1;

The structure of Crystal Structure of Transketolase From Escherichia Coli in Noncovalent Complex with Acceptor Aldose Ribose 5-Phosphate, PDB code: 2r5n was solved by C.Parthier, P.Asztalos, G.Wille, K.Tittmann, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	35.00 / 1.60
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	89.969, 101.738, 132.859, 90.00, 90.00, 90.00
R / Rfree (%)	16.3 / 19.6

The binding sites of Calcium atom in the Crystal Structure of Transketolase From Escherichia Coli in Noncovalent Complex with Acceptor Aldose Ribose 5-Phosphate (pdb code 2r5n). 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 Transketolase From Escherichia Coli in Noncovalent Complex with Acceptor Aldose Ribose 5-Phosphate, PDB code: 2r5n:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the Crystal Structure of Transketolase From Escherichia Coli in Noncovalent Complex with Acceptor Aldose Ribose 5-Phosphate


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 Transketolase From Escherichia Coli in Noncovalent Complex with Acceptor Aldose Ribose 5-Phosphate within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca2000 b:9.0 occ:1.00 O1A A:TPP672 2.2 11.7 1.0 O A:ILE187 2.3 8.8 1.0 OD2 A:ASP155 2.3 9.0 1.0 O1B A:TPP672 2.3 12.1 1.0 OD1 A:ASN185 2.4 8.3 1.0 O A:HOH706 2.4 8.7 1.0 CG A:ASN185 3.3 8.2 1.0 CG A:ASP155 3.4 10.0 1.0 ND2 A:ASN185 3.4 8.0 1.0 PA A:TPP672 3.5 14.6 1.0 C A:ILE187 3.5 8.9 1.0 PB A:TPP672 3.5 12.9 1.0 O3A A:TPP672 3.7 14.4 1.0 CB A:ASP155 3.8 8.1 1.0 N A:ASP155 4.1 7.7 1.0 N A:ILE187 4.1 8.4 1.0 CA A:ILE187 4.3 9.2 1.0 O2A A:TPP672 4.3 18.5 1.0 O A:HOH726 4.5 9.5 1.0 OD1 A:ASP155 4.5 9.0 1.0 N A:SER188 4.5 8.2 1.0 O2B A:TPP672 4.6 14.5 1.0 CA A:ASP155 4.6 8.1 1.0 O A:ASP183 4.6 8.6 1.0 O7 A:TPP672 4.6 18.4 1.0 CA A:SER188 4.6 8.4 1.0 CB A:ASN185 4.7 8.2 1.0 O3B A:TPP672 4.7 15.6 1.0 CB A:ILE187 4.7 9.1 1.0 N A:GLY186 4.9 8.9 1.0 N A:ASN185 4.9 8.2 1.0

Calcium binding site 2 out of 2 in the Crystal Structure of Transketolase From Escherichia Coli in Noncovalent Complex with Acceptor Aldose Ribose 5-Phosphate


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 Transketolase From Escherichia Coli in Noncovalent Complex with Acceptor Aldose Ribose 5-Phosphate within 5.0Å range: probe atom residue distance (Å) B Occ B:Ca2000 b:7.9 occ:1.00 O1A B:TPP672 2.2 11.4 1.0 O B:ILE187 2.3 8.3 1.0 O1B B:TPP672 2.3 9.5 1.0 OD2 B:ASP155 2.3 8.5 1.0 OD1 B:ASN185 2.4 8.2 1.0 O B:HOH1032 2.5 7.4 1.0 CG B:ASN185 3.3 7.8 1.0 CG B:ASP155 3.4 8.5 1.0 ND2 B:ASN185 3.5 8.8 1.0 PA B:TPP672 3.5 14.6 1.0 C B:ILE187 3.5 8.8 1.0 PB B:TPP672 3.5 12.2 1.0 O3A B:TPP672 3.8 13.8 1.0 CB B:ASP155 3.8 7.1 1.0 N B:ILE187 4.0 8.2 1.0 N B:ASP155 4.1 6.8 1.0 CA B:ILE187 4.3 9.2 1.0 O2A B:TPP672 4.3 17.9 1.0 O B:HOH1066 4.4 9.1 1.0 OD1 B:ASP155 4.4 8.6 1.0 N B:SER188 4.5 8.2 1.0 O2B B:TPP672 4.5 14.7 1.0 CA B:ASP155 4.6 7.0 1.0 O B:ASP183 4.6 7.3 1.0 O7 B:TPP672 4.6 19.1 1.0 CB B:ASN185 4.7 7.8 1.0 CA B:SER188 4.7 8.2 1.0 O3B B:TPP672 4.7 15.6 1.0 CB B:ILE187 4.7 9.7 1.0 N B:GLY186 4.8 8.3 1.0 N B:ASN185 4.9 8.0 1.0 C7 B:TPP672 5.0 16.9 1.0 C B:ASN185 5.0 8.2 1.0

P.Asztalos, C.Parthier, R.Golbik, M.Kleinschmidt, G.Hubner, M.S.Weiss, R.Friedemann, G.Wille, K.Tittmann. Strain and Near Attack Conformers in Enzymic Thiamin Catalysis: X-Ray Crystallographic Snapshots of Bacterial Transketolase in Covalent Complex with Donor Ketoses Xylulose 5-Phosphate and Fructose 6-Phosphate, and in Noncovalent Complex with Acceptor Aldose Ribose 5-Phosphate. Biochemistry V. 46 12037 2007.
ISSN: ISSN 0006-2960
PubMed: 17914867
DOI: 10.1021/BI700844M