Sodium in PDB 7q75: Room Temperature Structure of Rnase A at Atmospheric Pressure

All present enzymatic activity of Room Temperature Structure of Rnase A at Atmospheric Pressure:
4.6.1.18;

The structure of Room Temperature Structure of Rnase A at Atmospheric Pressure, PDB code: 7q75 was solved by J.Lieske, S.Guenther, S.Saouane, A.Meents, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	28.14 / 1.64
Space group	P 32 2 1
Cell size a, b, c (Å), α, β, γ (°)	64.52, 64.52, 65.14, 90, 90, 120
R / Rfree (%)	15.5 / 18.9

The structure of Room Temperature Structure of Rnase A at Atmospheric Pressure also contains other interesting chemical elements:

Chlorine

(Cl)

3 atoms

The binding sites of Sodium atom in the Room Temperature Structure of Rnase A at Atmospheric Pressure (pdb code 7q75). 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 Room Temperature Structure of Rnase A at Atmospheric Pressure, PDB code: 7q75:

Sodium binding site 1 out of 1 in the Room Temperature Structure of Rnase A at Atmospheric Pressure


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 1 of Room Temperature Structure of Rnase A at Atmospheric Pressure within 5.0Å range: probe atom residue distance (Å) B Occ A:Na206 b:37.9 occ:1.00 H A:ALA5 2.2 23.5 1.0 O3 A:SO4202 2.6 90.9 1.0 O A:HOH354 2.9 33.6 1.0 HB A:THR3 2.9 26.4 1.0 HB2 A:ALA5 2.9 26.6 1.0 N A:ALA5 3.0 19.6 1.0 H A:ALA4 3.1 26.7 1.0 HB3 A:ALA4 3.1 33.3 1.0 HB3 A:ALA5 3.2 26.6 1.0 CB A:ALA5 3.4 22.3 1.0 N A:ALA4 3.5 22.3 1.0 O2 A:SO4202 3.5 70.1 1.0 S A:SO4202 3.6 93.5 1.0 CB A:THR3 3.8 22.1 1.0 CA A:ALA5 3.8 17.4 1.0 CB A:ALA4 3.9 27.8 1.0 C A:ALA4 3.9 19.9 1.0 CA A:ALA4 4.0 21.6 1.0 OG1 A:THR3 4.1 24.1 1.0 HG1 A:THR3 4.1 28.9 1.0 HG12 A:VAL118 4.1 29.1 1.0 O A:HOH332 4.2 36.5 1.0 C A:THR3 4.3 21.2 1.0 HA A:ALA5 4.3 20.8 1.0 HB1 A:ALA5 4.3 26.6 1.0 O4 A:SO4202 4.3 102.5 1.0 HB2 A:ALA4 4.4 33.3 1.0 HG11 A:VAL118 4.5 29.1 1.0 H A:ALA6 4.5 24.8 1.0 HB1 A:ALA4 4.5 33.3 1.0 CA A:THR3 4.6 23.9 1.0 HA A:THR3 4.7 28.6 1.0 O1 A:SO4202 4.7 92.0 1.0 CG1 A:VAL118 4.7 24.3 1.0 O A:HOH357 4.8 21.6 1.0 O A:HOH381 4.8 40.5 1.0 HG21 A:THR3 4.8 30.0 1.0 CG2 A:THR3 4.8 25.0 1.0 HA A:ALA4 4.9 25.9 1.0 HG22 A:THR3 4.9 30.0 1.0

J.Lieske, S.Saouane, S.Guenther, J.Meyer, T.Pakendorf, B.Reime, A.Burkhardt, E.Crosas, J.Hakanpaeae, K.Stachnik, J.Sieg, M.Rarey, M.H.Abdellatif, A.G.Gabdulkhakov, G.K.Selikhanov, H.N.Chapman, A.Meents. Fixed-Target High-Pressure Macromolecular Crystallography To Be Published.