Chlorine in PDB 8pkx: Kelch Domain of KEAP1 in Complex with A Ortho-Dimethylbenzene Linked Cyclic Peptide 11 (Ortho-Wrcdeetgec)

The structure of Kelch Domain of KEAP1 in Complex with A Ortho-Dimethylbenzene Linked Cyclic Peptide 11 (Ortho-Wrcdeetgec), PDB code: 8pkx was solved by M.B.Braun, L.Bischof, M.D.Hartmann, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	42.24 / 1.79
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	162.43, 68.877, 78.252, 90, 117.68, 90
R / Rfree (%)	17.5 / 21

The structure of Kelch Domain of KEAP1 in Complex with A Ortho-Dimethylbenzene Linked Cyclic Peptide 11 (Ortho-Wrcdeetgec) also contains other interesting chemical elements:

Sodium

(Na)

4 atoms

The binding sites of Chlorine atom in the Kelch Domain of KEAP1 in Complex with A Ortho-Dimethylbenzene Linked Cyclic Peptide 11 (Ortho-Wrcdeetgec) (pdb code 8pkx). This binding sites where shown within 5.0 Angstroms radius around Chlorine atom.
In total 2 binding sites of Chlorine where determined in the Kelch Domain of KEAP1 in Complex with A Ortho-Dimethylbenzene Linked Cyclic Peptide 11 (Ortho-Wrcdeetgec), PDB code: 8pkx:
Jump to Chlorine binding site number: 1; 2;

Chlorine binding site 1 out of 2 in the Kelch Domain of KEAP1 in Complex with A Ortho-Dimethylbenzene Linked Cyclic Peptide 11 (Ortho-Wrcdeetgec)


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 1 of Kelch Domain of KEAP1 in Complex with A Ortho-Dimethylbenzene Linked Cyclic Peptide 11 (Ortho-Wrcdeetgec) within 5.0Å range: probe atom residue distance (Å) B Occ A:Cl701 b:80.4 occ:1.00 NH2 A:ARG354 3.6 42.7 1.0 NH1 A:ARG354 3.9 43.4 1.0 O A:HOH845 4.0 56.9 1.0 O2 A:EDO703 4.2 75.2 1.0 CZ A:ARG354 4.2 44.1 1.0 CE1 A:TYR341 4.5 55.9 1.0

Chlorine binding site 2 out of 2 in the Kelch Domain of KEAP1 in Complex with A Ortho-Dimethylbenzene Linked Cyclic Peptide 11 (Ortho-Wrcdeetgec)


Mono view


Stereo pair view

A full contact list of Chlorine with other atoms in the Cl binding site number 2 of Kelch Domain of KEAP1 in Complex with A Ortho-Dimethylbenzene Linked Cyclic Peptide 11 (Ortho-Wrcdeetgec) within 5.0Å range: probe atom residue distance (Å) B Occ A:Cl702 b:64.2 occ:1.00 O A:HOH897 2.6 50.2 1.0 O A:HOH958 2.8 32.9 1.0 N A:GLY367 2.9 27.6 1.0 NA A:NA711 3.0 61.2 1.0 N A:VAL606 3.1 29.6 0.7 N A:VAL606 3.1 29.9 0.3 O A:VAL606 3.4 31.7 0.7 O A:VAL606 3.5 25.1 0.3 CA A:GLY605 3.5 29.9 1.0 O A:GLY367 3.6 31.0 1.0 O A:HOH974 3.6 54.2 1.0 CA A:ALA366 3.6 27.8 1.0 C A:ALA366 3.8 28.1 1.0 C A:GLY605 3.8 30.9 1.0 CA A:GLY367 3.9 28.9 1.0 CG2 A:VAL606 4.0 27.3 0.3 CB A:ALA366 4.0 28.7 1.0 CA A:VAL606 4.1 30.5 0.7 CA A:VAL606 4.2 28.9 0.3 C A:VAL606 4.2 30.2 0.7 C A:GLY367 4.2 32.1 1.0 C A:VAL606 4.2 28.0 0.3 O A:HOH956 4.3 30.2 1.0 O A:HOH930 4.4 44.2 1.0 O A:VAL604 4.4 30.5 1.0 CB A:VAL606 4.5 25.4 0.7 CB A:VAL606 4.7 28.9 0.3 N A:GLY605 4.7 29.1 1.0 O A:LEU365 4.7 31.8 1.0 N A:ALA366 4.9 27.6 1.0 O A:ILE559 4.9 30.4 1.0 O A:ALA366 5.0 28.4 1.0 CG2 A:VAL606 5.0 30.4 0.7 C A:VAL604 5.0 32.1 1.0

F.Fonseca Lopez, J.Miao, J.Damjanovic, L.Bischof, M.B.Braun, Y.Ling, M.D.Hartmann, Y.S.Lin, J.A.Kritzer. Computational Prediction of Cyclic Peptide Structural Ensembles and Application to the Design of KEAP1 Binders. J.Chem.Inf.Model. 2023.
ISSN: ESSN 1549-960X
PubMed: 37917529
DOI: 10.1021/ACS.JCIM.3C01337