Magnesium in PDB 3rkq: NKX2.5 Homeodomain Dimer Bound to Anf-242 Dna

The structure of NKX2.5 Homeodomain Dimer Bound to Anf-242 Dna, PDB code: 3rkq was solved by C.Genis, P.Scone, H.Kasahara, H.-J.Nam, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	30.94 / 1.70
Space group	P 65
Cell size a, b, c (Å), α, β, γ (°)	71.450, 71.450, 94.330, 90.00, 90.00, 120.00
R / Rfree (%)	21.1 / 25.7

The binding sites of Magnesium atom in the NKX2.5 Homeodomain Dimer Bound to Anf-242 Dna (pdb code 3rkq). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total only one binding site of Magnesium was determined in the NKX2.5 Homeodomain Dimer Bound to Anf-242 Dna, PDB code: 3rkq:

Magnesium binding site 1 out of 1 in the NKX2.5 Homeodomain Dimer Bound to Anf-242 Dna


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of NKX2.5 Homeodomain Dimer Bound to Anf-242 Dna within 5.0Å range: probe atom residue distance (Å) B Occ B:Mg1 b:10.3 occ:1.00 O C:HOH32 3.1 14.1 1.0 NE B:ARG142 3.2 12.6 1.0 NH2 B:ARG142 3.3 11.5 1.0 O C:HOH22 3.4 13.5 1.0 CZ B:ARG142 3.7 14.4 1.0 O B:ARG142 4.1 17.4 1.0 CD B:ARG142 4.3 12.6 1.0 CG B:LEU144 4.4 16.1 1.0 CD2 B:LEU144 4.5 16.5 1.0 N3 C:DA19 4.7 19.8 1.0 CD1 B:LEU144 4.7 18.3 1.0 C2 C:DA19 4.8 18.3 1.0 CB B:ARG142 4.9 14.9 1.0

L.Pradhan, C.Genis, P.Scone, E.O.Weinberg, H.Kasahara, H.J.Nam. Crystal Structure of the Human NKX2.5 Homeodomain in Complex with Dna Target. Biochemistry V. 51 6312 2012.
ISSN: ISSN 0006-2960
PubMed: 22849347
DOI: 10.1021/BI300849C