The binding sites of Magnesium atom in the structure of Structural Determinants For Activation Of the Alpha-Subunit of A Heterotrimeric G Protein (pdb code 1tag). This binding sites where shown with 5.0 Angstroms radius around Magnesium atom. The 1tag structure was solved by D.G.LAMBRIGHT, J.P.NOEL, H.E.HAMM, P.B.SIGLER, with X-Ray Crystallography technique, brief refinement statistics is given in the table below:
Resolution (A) | 8.0-1.8 | Space group | I222 | a (A) | 71.900 | b (A) | 87.800 | c (A) | 143.100 | alpha (°) | 90.00 | beta (°) | 90.00 | gamma (°) | 90.00 | Rfactor (%) | 18.7 | Rfree (%) | 21.1 |
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Magnesium binding site 1 out of 1 in 1tag
|  Click to enlarge |  Click to enlarge | Mono- and Stereo- picture of 5.0 Angstrom coordination sphere 1 of Magnesium in the PDB 1tag. Coordination sphere was calculated for all residues within 5.0 Angstroms distance from the central Magnesium atom, shown by VdW sphere Residues shown as a stick model or VDW spheres: A: Lys42, A: Ser43, A: Arg174, A: Asp196, A: Gdp351, A: Hoh353, A: Hoh354, A: Hoh355, A: Hoh356, A: Hoh427, A: Hoh434, A: Hoh475, A: Hoh526, A: Hoh560, A: Hoh619, A: Hoh728, A: Hoh730, | conact list:
Atom | Atom | Distance (A) | Mg | CB A:Lys42 | 4.89 | Mg | C A:Lys42 | 4.87 | Mg | N A:Ser43 | 3.76 | Mg | CB A:Ser43 | 3.07 | Mg | OG A:Ser43 | 2.18 | Mg | CA A:Ser43 | 3.95 | Mg | CZ A:Arg174 | 4.96 | Mg | NH1 A:Arg174 | 4.01 | Mg | OD2 A:Asp196 | 4.21 | Mg | O3B A:Gdp351 | 4.35 | Mg | PA A:Gdp351 | 4.50 | Mg | O2A A:Gdp351 | 4.69 | Mg | O1B A:Gdp351 | 3.49 | Mg | PB A:Gdp351 | 3.27 | Mg | O2B A:Gdp351 | 2.18 | Mg | O3A A:Gdp351 | 4.22 | Mg | O1A A:Gdp351 | 4.06 | Mg | O A:Hoh353 | 2.20 | Mg | O A:Hoh354 | 2.21 | Mg | O A:Hoh355 | 2.14 | Mg | O A:Hoh356 | 2.14 | Mg | O A:Hoh427 | 4.74 | Mg | O A:Hoh434 | 4.41 | Mg | O A:Hoh475 | 4.20 | Mg | O A:Hoh526 | 4.26 | Mg | O A:Hoh560 | 4.12 | Mg | O A:Hoh619 | 4.91 | Mg | O A:Hoh728 | 4.44 | Mg | O A:Hoh730 | 4.67 |
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