Calcium in PDB 6ckm: N. Meningitidis Cmp-Sialic Acid Synthetase in the Presence of Cmp- Sialic Acid and CA2+

All present enzymatic activity of N. Meningitidis Cmp-Sialic Acid Synthetase in the Presence of Cmp- Sialic Acid and CA2+:
2.7.7.43;

The structure of N. Meningitidis Cmp-Sialic Acid Synthetase in the Presence of Cmp- Sialic Acid and CA2+, PDB code: 6ckm was solved by M.M.Matthews, A.J.Fisher, X.Chen, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	39.01 / 1.54
Space group	C 2 2 2
Cell size a, b, c (Å), α, β, γ (°)	93.372, 156.020, 38.714, 90.00, 90.00, 90.00
R / Rfree (%)	15.3 / 17.6

The binding sites of Calcium atom in the N. Meningitidis Cmp-Sialic Acid Synthetase in the Presence of Cmp- Sialic Acid and CA2+ (pdb code 6ckm). 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 N. Meningitidis Cmp-Sialic Acid Synthetase in the Presence of Cmp- Sialic Acid and CA2+, PDB code: 6ckm:

Calcium binding site 1 out of 1 in the N. Meningitidis Cmp-Sialic Acid Synthetase in the Presence of Cmp- Sialic Acid and CA2+


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of N. Meningitidis Cmp-Sialic Acid Synthetase in the Presence of Cmp- Sialic Acid and CA2+ within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca702 b:35.3 occ:0.75 O A:HOH807 2.3 37.7 1.0 O3P A:NCC701 2.3 27.1 1.0 O A:HOH880 2.4 32.8 1.0 O A:HOH832 2.4 38.2 1.0 O1A A:NCC701 2.5 40.1 1.0 O A:HOH824 2.5 49.3 1.0 O A:HOH1022 2.8 50.1 1.0 O2P A:NCC701 3.2 27.4 1.0 P A:NCC701 3.3 27.2 1.0 C9 A:NCC701 3.5 42.6 1.0 OD1 A:ASP211 3.6 54.0 1.0 C10 A:NCC701 3.9 37.0 1.0 OD1 A:ASP209 4.0 29.2 0.5 O1P A:NCC701 4.2 28.1 1.0 O A:HOH809 4.2 33.8 1.0 O A:HOH937 4.3 54.0 1.0 OD2 A:ASP211 4.3 62.8 1.0 O6 A:NCC701 4.3 33.6 1.0 CG A:ASP211 4.4 51.7 1.0 OD2 A:ASP209 4.4 28.5 0.5 O5' A:NCC701 4.5 22.5 1.0 CG A:ASP209 4.6 24.6 0.5 O8 A:NCC701 4.6 22.9 1.0 O1B A:NCC701 4.7 41.0 1.0 C5' A:NCC701 4.7 21.2 1.0 O A:HOH1038 4.8 53.0 1.0

M.M.Matthews, H.Yu, Y.Li, X.Chen, A.J.Fisher. Structural Insight Into the Mechanism of Cmp-Sialic Acid Synthetase To Be Published.