Magnesium in PDB 6m8r: Crystal Structure of the KCTD16 Btb Domain in Complex with GABAB2 Peptide

The structure of Crystal Structure of the KCTD16 Btb Domain in Complex with GABAB2 Peptide, PDB code: 6m8r was solved by S.Zheng, A.C.Kruse, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	38.64 / 3.20
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	91.964, 64.945, 114.137, 90.00, 99.79, 90.00
R / Rfree (%)	21.7 / 26.5

The binding sites of Magnesium atom in the Crystal Structure of the KCTD16 Btb Domain in Complex with GABAB2 Peptide (pdb code 6m8r). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 2 binding sites of Magnesium where determined in the Crystal Structure of the KCTD16 Btb Domain in Complex with GABAB2 Peptide, PDB code: 6m8r:
Jump to Magnesium binding site number: 1; 2;

Magnesium binding site 1 out of 2 in the Crystal Structure of the KCTD16 Btb Domain in Complex with GABAB2 Peptide


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Crystal Structure of the KCTD16 Btb Domain in Complex with GABAB2 Peptide within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg201 b:85.7 occ:1.00 OD1 A:ASP87 1.9 96.3 1.0 O A:GLN93 2.1 71.7 1.0 OD1 A:ASP91 2.2 90.3 1.0 O A:ASP87 2.3 69.4 1.0 CG A:ASP87 2.7 0.3 1.0 CG A:ASP91 2.8 97.8 1.0 OD2 A:ASP91 2.8 98.4 1.0 C A:ASP87 3.1 66.1 1.0 OD2 A:ASP87 3.2 81.5 1.0 C A:GLN93 3.4 75.7 1.0 CB A:ASP87 3.7 90.5 1.0 CA A:ASP87 3.8 73.5 1.0 N A:TYR88 3.9 58.9 1.0 N A:GLN93 4.0 84.2 1.0 CA A:TYR88 4.1 60.4 1.0 CB A:ASP91 4.2 94.2 1.0 N A:ASP91 4.2 71.6 1.0 CA A:GLN93 4.3 82.1 1.0 N A:VAL94 4.3 66.4 1.0 CA A:VAL94 4.3 71.0 1.0 CG2 A:VAL94 4.4 73.7 1.0 CA A:ASP91 4.5 71.7 1.0 CG A:GLN93 4.5 94.6 1.0 C A:ASP91 4.7 66.4 1.0 CD L:ARG890 4.7 90.4 1.0 N A:ARG92 4.7 75.2 1.0 C A:TYR88 4.7 60.6 1.0 CB A:VAL94 4.8 67.5 1.0 O A:TYR88 4.9 64.5 1.0 CB A:GLN93 5.0 84.2 1.0

Magnesium binding site 2 out of 2 in the Crystal Structure of the KCTD16 Btb Domain in Complex with GABAB2 Peptide


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of Crystal Structure of the KCTD16 Btb Domain in Complex with GABAB2 Peptide within 5.0Å range: probe atom residue distance (Å) B Occ F:Mg201 b:59.0 occ:1.00 OD1 F:ASP87 2.2 77.1 1.0 O F:GLN93 2.4 64.2 1.0 O F:ASP87 2.6 68.6 1.0 CB F:ASP91 2.6 88.0 1.0 OD2 F:ASP91 2.9 98.4 1.0 CG F:ASP87 3.0 82.2 1.0 CG F:ASP91 3.1 99.2 1.0 OD2 F:ASP87 3.4 86.4 1.0 C F:ASP87 3.5 59.8 1.0 C F:GLN93 3.5 65.6 1.0 CA F:ASP91 3.7 72.5 1.0 CG F:GLN93 3.7 84.4 1.0 N F:ASP91 3.7 75.8 1.0 N F:GLN93 4.1 68.9 1.0 CB F:ASP87 4.1 67.9 1.0 CA F:ASP87 4.2 61.5 1.0 OD1 F:ASP91 4.2 90.2 1.0 C F:ASP91 4.3 66.2 1.0 CA F:GLN93 4.3 74.5 1.0 N F:TYR88 4.4 55.8 1.0 N F:VAL94 4.5 61.0 1.0 CA F:TYR88 4.6 61.1 1.0 CB F:GLN93 4.6 85.8 1.0 N F:ARG92 4.6 72.0 1.0 CG1 F:VAL94 4.7 69.3 1.0 CA F:VAL94 4.7 65.0 1.0 CD F:GLN93 4.8 0.3 1.0 NE K:ARG890 4.8 72.1 1.0 O F:ASP91 4.9 68.4 1.0 C F:ARG90 4.9 78.3 1.0

S.Zheng, N.Abreu, J.Levitz, A.C.Kruse. Structural Basis For Kctd-Mediated Rapid Desensitization of Gababsignalling. Nature V. 567 127 2019.
ISSN: ISSN 0028-0836
PubMed: 30814734
DOI: 10.1038/S41586-019-0990-0