Sodium in PDB 5lu5: A Quantum Half-Site Enzyme

All present enzymatic activity of A Quantum Half-Site Enzyme:
5.3.1.28;

The structure of A Quantum Half-Site Enzyme, PDB code: 5lu5 was solved by M.Vivoli, N.J.Harmer, J.Pang, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	63.39 / 1.55
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	73.200, 83.810, 126.780, 90.00, 90.00, 90.00
R / Rfree (%)	16.1 / 18.7

The structure of A Quantum Half-Site Enzyme also contains other interesting chemical elements:

Magnesium

(Mg)

1 atom

The binding sites of Sodium atom in the A Quantum Half-Site Enzyme (pdb code 5lu5). This binding sites where shown within 5.0 Angstroms radius around Sodium atom.
In total only one binding site of Sodium was determined in the A Quantum Half-Site Enzyme, PDB code: 5lu5:

Sodium binding site 1 out of 1 in the A Quantum Half-Site Enzyme


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 1 of A Quantum Half-Site Enzyme within 5.0Å range: probe atom residue distance (Å) B Occ C:Na205 b:11.6 occ:1.00 O D:ACT206 1.9 30.2 1.0 O3 D:PG4203 2.7 35.1 0.8 C7 D:PG4203 2.8 28.8 0.8 O5 D:PG4203 2.8 36.2 0.8 O D:HOH453 2.9 36.9 1.0 O2 D:PG4203 3.0 33.4 0.8 C D:ACT206 3.1 11.5 1.0 O C:HOH348 3.1 23.0 1.0 O4 D:PG4203 3.2 35.2 0.8 C8 D:PG4203 3.3 27.6 0.8 C3 D:PG4203 3.6 26.3 0.8 C5 D:PG4203 3.6 24.8 0.8 C4 D:PG4203 3.7 30.7 0.8 C2 D:PG4203 3.7 33.0 0.8 OXT D:ACT206 3.8 11.1 1.0 C1 D:PG4203 3.9 30.1 0.8 C6 D:PG4203 4.0 28.1 0.8 CH3 D:ACT206 4.1 8.1 1.0 O1 D:PG4203 4.6 41.2 0.8 CB C:SER125 4.9 14.3 1.0

M.Vivoli, J.Pang, N.J.Harmer. A Half-Site Multimeric Enzyme Achieves Its Cooperativity Without Conformational Changes. Sci Rep V. 7 16529 2017.
ISSN: ESSN 2045-2322
PubMed: 29184087
DOI: 10.1038/S41598-017-16421-2