Magnesium in PDB 1ibr: Complex of Ran with Importin Beta

The structure of Complex of Ran with Importin Beta, PDB code: 1ibr was solved by I.R.Vetter, A.Arndt, U.Kutay, D.Goerlich, A.Wittinghofer, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	28.70 / 2.30
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	65.700, 108.950, 114.050, 90.00, 100.66, 90.00
R / Rfree (%)	24.5 / 27.2

The binding sites of Magnesium atom in the Complex of Ran with Importin Beta (pdb code 1ibr). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 2 binding sites of Magnesium where determined in the Complex of Ran with Importin Beta, PDB code: 1ibr:
Jump to Magnesium binding site number: 1; 2;

Magnesium binding site 1 out of 2 in the Complex of Ran with Importin Beta


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Complex of Ran with Importin Beta within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg251 b:46.9 occ:1.00 O A:HOH597 2.3 16.8 1.0 OG1 A:THR24 2.8 20.4 1.0 O2B A:GNP250 2.9 19.8 1.0 O1G A:GNP250 2.9 20.9 1.0 OG1 A:THR42 2.9 15.1 1.0 O A:VAL40 3.0 24.5 1.0 O2A A:GNP250 3.0 26.7 1.0 CB A:THR24 3.2 19.2 1.0 N A:THR42 3.5 20.5 1.0 N3B A:GNP250 3.7 20.1 1.0 PB A:GNP250 3.7 22.0 1.0 O A:HOH596 3.7 26.8 1.0 PA A:GNP250 3.8 26.2 1.0 PG A:GNP250 3.8 20.0 1.0 C A:VAL40 3.9 23.7 1.0 CG2 A:THR24 3.9 16.4 1.0 C A:ALA41 4.0 22.4 1.0 CB A:THR42 4.0 18.2 1.0 O1A A:GNP250 4.0 26.6 1.0 CA A:ALA41 4.0 22.7 1.0 O3A A:GNP250 4.1 22.1 1.0 O A:HOH630 4.1 26.8 1.0 CA A:THR42 4.2 19.5 1.0 N A:ALA41 4.3 23.0 1.0 O3G A:GNP250 4.5 19.9 1.0 CE1 A:TYR39 4.5 25.4 1.0 CA A:THR24 4.6 19.6 1.0 N A:THR24 4.7 21.8 1.0 CD1 A:TYR39 4.7 26.1 1.0 N A:VAL40 4.8 24.9 1.0 O A:ALA41 4.8 21.9 1.0 CA A:VAL40 5.0 24.7 1.0

Magnesium binding site 2 out of 2 in the Complex of Ran with Importin Beta


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of Complex of Ran with Importin Beta within 5.0Å range: probe atom residue distance (Å) B Occ C:Mg253 b:68.2 occ:1.00 OG1 C:THR24 2.8 37.8 1.0 O2B C:GNP252 2.8 39.6 1.0 O1G C:GNP252 2.9 39.9 1.0 OG1 C:THR42 2.9 46.2 1.0 O2A C:GNP252 3.0 45.9 1.0 O C:VAL40 3.0 56.5 1.0 CB C:THR24 3.2 38.9 1.0 N C:THR42 3.5 50.6 1.0 N3B C:GNP252 3.7 40.8 1.0 PB C:GNP252 3.7 40.5 1.0 PG C:GNP252 3.8 41.4 1.0 PA C:GNP252 3.8 46.2 1.0 CG2 C:THR24 3.9 39.0 1.0 C C:VAL40 3.9 56.6 1.0 O C:HOH603 4.0 44.7 1.0 CB C:THR42 4.0 47.5 1.0 O1A C:GNP252 4.0 46.5 1.0 C C:ALA41 4.0 51.9 1.0 CA C:ALA41 4.1 53.0 1.0 O3A C:GNP252 4.1 44.7 1.0 CA C:THR42 4.2 48.9 1.0 N C:ALA41 4.4 54.9 1.0 O3G C:GNP252 4.5 40.2 1.0 CA C:THR24 4.5 38.1 1.0 CE1 C:TYR39 4.6 62.4 1.0 N C:THR24 4.7 38.3 1.0 CD1 C:TYR39 4.8 62.2 1.0 N C:VAL40 4.9 59.9 1.0 O C:ALA41 4.9 51.8 1.0

I.R.Vetter, A.Arndt, U.Kutay, D.Gorlich, A.Wittinghofer. Structural View of the Ran-Importin Beta Interaction at 2.3 A Resolution Cell(Cambridge,Mass.) V. 97 635 1999.
ISSN: ISSN 0092-8674
PubMed: 10367892
DOI: 10.1016/S0092-8674(00)80774-6