Sodium in PDB 7sq3: Designed Trefoil Knot Protein, Variant 1

The structure of Designed Trefoil Knot Protein, Variant 1, PDB code: 7sq3 was solved by B.Takushi, L.Doyle, B.L.Stoddard, P.Bradley, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	40.45 / 2.45
Space group	P 43
Cell size a, b, c (Å), α, β, γ (°)	57.202, 57.202, 56.027, 90, 90, 90
R / Rfree (%)	22.7 / 26.7

The structure of Designed Trefoil Knot Protein, Variant 1 also contains other interesting chemical elements:

Chlorine

(Cl)

1 atom

The binding sites of Sodium atom in the Designed Trefoil Knot Protein, Variant 1 (pdb code 7sq3). 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 Designed Trefoil Knot Protein, Variant 1, PDB code: 7sq3:

Sodium binding site 1 out of 1 in the Designed Trefoil Knot Protein, Variant 1


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 1 of Designed Trefoil Knot Protein, Variant 1 within 5.0Å range: probe atom residue distance (Å) B Occ A:Na202 b:82.4 occ:1.00 OE2 A:GLU126 2.3 87.2 1.0 N A:SER123 2.7 73.6 1.0 OG A:SER123 2.8 76.9 1.0 CB A:GLU126 3.1 74.2 1.0 CB A:SER123 3.3 71.3 1.0 CD A:GLU126 3.3 84.0 1.0 CA A:SER123 3.5 74.5 1.0 C A:LYS122 3.7 73.4 1.0 CA A:LYS122 3.7 71.7 1.0 CG A:GLU126 3.8 80.5 1.0 CB A:LYS122 3.8 73.2 1.0 CD A:LYS122 4.0 77.0 1.0 O A:SER123 4.3 74.1 1.0 OE1 A:GLU126 4.3 83.0 1.0 C A:SER123 4.3 73.4 1.0 CG A:LYS122 4.4 74.8 1.0 CA A:GLU126 4.5 72.8 1.0 N A:GLU126 4.7 75.1 1.0 CE A:LYS122 4.7 79.1 1.0 O A:LYS122 4.8 74.4 1.0

L.A.Doyle, B.Takushi, L.Doyle, B.L.Stoddard, P.Bradley. N/A N/A.