Sodium in PDB 7sq5: Designed Trefoil Knot Protein, Variant 3

The structure of Designed Trefoil Knot Protein, Variant 3, PDB code: 7sq5 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)	47.63 / 2.21
Space group	I 2 2 2
Cell size a, b, c (Å), α, β, γ (°)	47.233, 88.18, 95.257, 90, 90, 90
R / Rfree (%)	21.4 / 26

The binding sites of Sodium atom in the Designed Trefoil Knot Protein, Variant 3 (pdb code 7sq5). This binding sites where shown within 5.0 Angstroms radius around Sodium atom.
In total 2 binding sites of Sodium where determined in the Designed Trefoil Knot Protein, Variant 3, PDB code: 7sq5:
Jump to Sodium binding site number: 1; 2;

Sodium binding site 1 out of 2 in the Designed Trefoil Knot Protein, Variant 3


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 3 within 5.0Å range: probe atom residue distance (Å) B Occ A:Na201 b:60.1 occ:1.00 N A:GLU26 3.3 51.0 1.0 CA A:SER25 3.8 49.6 1.0 CB A:GLU26 4.0 48.3 1.0 CB A:SER25 4.0 45.7 1.0 C A:SER25 4.1 51.7 1.0 CA A:GLU26 4.3 48.3 1.0 NH1 A:ARG29 4.6 55.3 1.0

Sodium binding site 2 out of 2 in the Designed Trefoil Knot Protein, Variant 3


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 2 of Designed Trefoil Knot Protein, Variant 3 within 5.0Å range: probe atom residue distance (Å) B Occ A:Na202 b:35.0 occ:1.00 OE1 A:GLU143 2.7 31.9 1.0 NZ A:LYS66 3.6 22.6 1.0 CD A:GLU143 3.8 35.1 1.0 CB A:GLU143 4.2 28.1 1.0 O A:LEU139 4.2 20.8 1.0 CG A:GLU143 4.4 37.4 1.0 CB A:LEU139 4.4 18.9 1.0 CE A:LYS66 4.4 26.9 1.0 CD2 A:LEU139 4.5 16.3 1.0 C A:LEU139 4.7 21.8 1.0 CA A:LEU139 4.9 19.9 1.0 OE2 A:GLU143 4.9 35.2 1.0 CG A:LEU139 4.9 23.5 1.0

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