Potassium in PDB 3tix: Crystal Structure of the CHP1-TAS3 Complex Core

The structure of Crystal Structure of the CHP1-TAS3 Complex Core, PDB code: 3tix was solved by T.Schalch, L.Joshua-Tor, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	65.06 / 2.90
Space group	C 2 2 21
Cell size a, b, c (Å), α, β, γ (°)	104.880, 172.200, 198.680, 90.00, 90.00, 90.00
R / Rfree (%)	21.1 / 24.3

The structure of Crystal Structure of the CHP1-TAS3 Complex Core also contains other interesting chemical elements:

Chlorine

(Cl)

8 atoms

The binding sites of Potassium atom in the Crystal Structure of the CHP1-TAS3 Complex Core (pdb code 3tix). This binding sites where shown within 5.0 Angstroms radius around Potassium atom.
In total 3 binding sites of Potassium where determined in the Crystal Structure of the CHP1-TAS3 Complex Core, PDB code: 3tix:
Jump to Potassium binding site number: 1; 2; 3;

Potassium binding site 1 out of 3 in the Crystal Structure of the CHP1-TAS3 Complex Core


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 1 of Crystal Structure of the CHP1-TAS3 Complex Core within 5.0Å range: probe atom residue distance (Å) B Occ B:K1001 b:63.6 occ:1.00 O B:LYS763 2.6 57.0 1.0 O B:PHE734 2.7 60.2 1.0 O B:SER736 2.7 52.9 1.0 O B:HOH5 2.8 47.0 1.0 C B:LYS763 3.7 58.3 1.0 C B:PHE734 3.8 60.5 1.0 C B:SER736 3.9 52.9 1.0 C B:LEU735 4.0 55.6 1.0 CB B:LYS763 4.1 61.6 1.0 CG2 B:VAL739 4.1 47.7 1.0 O B:LEU735 4.1 57.1 1.0 O B:GLN737 4.2 52.0 1.0 N B:SER736 4.3 53.7 1.0 CA B:LEU735 4.3 56.5 1.0 CA B:LYS763 4.4 60.3 1.0 N B:LEU735 4.5 54.7 1.0 CB B:VAL739 4.6 46.3 1.0 C B:GLN737 4.6 51.7 1.0 CA B:SER736 4.7 53.1 1.0 CB B:SER764 4.7 65.4 1.0 SG B:CYS765 4.8 64.9 1.0 C B:SER764 4.8 60.1 1.0 N B:SER764 4.8 63.8 1.0 N B:GLN737 4.9 53.3 1.0 O B:SER764 4.9 59.4 1.0 CA B:GLN737 4.9 53.7 1.0 CA B:PHE734 4.9 59.4 1.0 N B:VAL739 5.0 50.0 1.0

Potassium binding site 2 out of 3 in the Crystal Structure of the CHP1-TAS3 Complex Core


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 2 of Crystal Structure of the CHP1-TAS3 Complex Core within 5.0Å range: probe atom residue distance (Å) B Occ C:K1001 b:0.5 occ:1.00 OG C:SER35 2.8 61.4 1.0 CB C:SER35 3.8 59.0 1.0 O C:ILE18 3.8 67.5 1.0 O C:ALA16 3.9 62.3 1.0 O C:SER31 4.0 83.3 1.0 O C:ARG30 4.1 0.0 1.0 CB C:SER19 4.2 69.9 1.0 O C:CYS17 4.5 64.2 1.0 CA C:ALA32 4.5 69.0 1.0 O D:ASN662 4.6 57.9 1.0 C C:SER31 4.7 85.0 1.0 CA C:SER19 4.7 67.7 1.0 C C:ILE18 4.7 68.6 1.0 ND2 D:ASN662 4.8 54.5 1.0 N C:ALA32 4.9 72.4 1.0 OD1 D:ASN662 4.9 56.8 1.0 CG D:ASN662 5.0 55.2 1.0

Potassium binding site 3 out of 3 in the Crystal Structure of the CHP1-TAS3 Complex Core


Mono view


Stereo pair view

A full contact list of Potassium with other atoms in the K binding site number 3 of Crystal Structure of the CHP1-TAS3 Complex Core within 5.0Å range: probe atom residue distance (Å) B Occ D:K1001 b:0.6 occ:1.00 O D:LYS763 2.5 71.6 1.0 O D:SER736 2.8 85.2 1.0 O D:PHE734 3.6 77.6 1.0 C D:LYS763 3.7 72.3 1.0 O D:GLN737 3.8 83.8 1.0 O D:SER764 3.9 80.9 1.0 C D:SER736 4.0 86.1 1.0 C D:GLN737 4.2 83.8 1.0 C D:SER764 4.3 80.9 1.0 CB D:SER764 4.4 80.2 1.0 CB D:LYS763 4.4 88.3 1.0 CG2 D:VAL739 4.4 66.6 1.0 CA D:GLN737 4.5 87.1 1.0 CA D:LYS763 4.5 74.3 1.0 N D:SER764 4.6 85.0 1.0 CA D:SER764 4.7 83.9 1.0 N D:GLN737 4.7 86.3 1.0 N D:VAL739 4.8 66.6 1.0 C D:LEU735 4.8 78.4 1.0 C D:PHE734 4.8 77.7 1.0 N D:ASN738 4.8 83.8 1.0 O D:LEU735 4.8 81.0 1.0 N D:SER736 4.9 86.1 1.0 CB D:VAL739 4.9 63.9 1.0

T.Schalch, G.Job, S.Shanker, J.F.Partridge, L.Joshua-Tor. The CHP1-TAS3 Core Is A Multifunctional Platform Critical For Gene Silencing By Rits. Nat.Struct.Mol.Biol. V. 18 1351 2011.
ISSN: ISSN 1545-9993
PubMed: 22081013
DOI: 10.1038/NSMB.2151