Magnesium in PDB 2z5i: Crystal Structure of the Head-to-Tail Junction of Tropomyosin

The structure of Crystal Structure of the Head-to-Tail Junction of Tropomyosin, PDB code: 2z5i was solved by K.Murakami, K.Nozawa, K.Tomii, N.Kudou, N.Igarashi, Y.Shirakihara, S.Wakatsuki, M.Stewart, T.Yasunaga, T.Wakabayashi, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	32.92 / 2.10
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	41.957, 114.498, 68.351, 90.00, 107.91, 90.00
R / Rfree (%)	21.7 / 24.6

The binding sites of Magnesium atom in the Crystal Structure of the Head-to-Tail Junction of Tropomyosin (pdb code 2z5i). 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 Head-to-Tail Junction of Tropomyosin, PDB code: 2z5i:
Jump to Magnesium binding site number: 1; 2;

Magnesium binding site 1 out of 2 in the Crystal Structure of the Head-to-Tail Junction of Tropomyosin


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 Head-to-Tail Junction of Tropomyosin within 5.0Å range: probe atom residue distance (Å) B Occ A:Mg1001 b:30.8 occ:1.00 O A:HOH1020 2.0 26.0 1.0 O A:HOH1019 2.0 28.3 1.0 O A:HOH1022 2.1 29.4 1.0 O C:HOH292 2.2 21.8 1.0 O A:HOH1023 2.4 29.3 1.0 O A:HOH1024 3.9 30.4 1.0 OD1 A:ASP254 4.0 23.8 1.0 OE2 A:GLU257 4.1 39.1 1.0 OD1 A:ASP258 4.2 25.4 1.0 O A:ASP254 4.3 20.0 1.0 O C:HOH304 4.3 43.3 1.0 CA A:ASP254 4.4 18.9 1.0 CB A:GLU257 4.5 13.4 1.0 CG A:ASP254 4.5 25.5 1.0 CB A:ASP254 4.6 17.9 1.0 OE1 C:GLU273 4.8 35.1 1.0 C A:ASP254 4.8 20.3 1.0 CG A:ASP258 5.0 22.0 1.0

Magnesium binding site 2 out of 2 in the Crystal Structure of the Head-to-Tail Junction of Tropomyosin


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 Head-to-Tail Junction of Tropomyosin within 5.0Å range: probe atom residue distance (Å) B Occ E:Mg1002 b:35.0 occ:1.00 O G:HOH296 2.0 29.3 1.0 O E:HOH1021 2.2 29.3 1.0 O E:HOH1023 2.2 31.4 1.0 O G:HOH298 2.3 26.7 1.0 O G:HOH297 2.3 27.9 1.0 O E:HOH1022 2.3 28.1 1.0 OD1 E:ASP254 4.0 22.1 1.0 O E:HOH1009 4.1 29.6 1.0 OE2 E:GLU257 4.1 35.1 1.0 OD1 E:ASP258 4.2 21.2 1.0 O E:ASP254 4.4 21.7 1.0 O G:HOH311 4.4 37.3 1.0 CB E:GLU257 4.5 16.4 1.0 CA E:ASP254 4.5 22.6 1.0 CG E:ASP254 4.5 27.9 1.0 CB E:ASP254 4.6 25.8 1.0 OE1 G:GLU273 4.8 34.7 1.0 C E:ASP254 4.9 22.2 1.0 CD E:GLU257 5.0 31.1 1.0

K.Murakami, M.Stewart, K.Nozawa, K.Tomii, N.Kudou, N.Igarashi, Y.Shirakihara, S.Wakatsuki, T.Yasunaga, T.Wakabayashi. Structural Basis For Tropomyosin Overlap in Thin (Actin) Filaments and the Generation of A Molecular Swivel By Troponin-T Proc.Natl.Acad.Sci.Usa V. 105 7200 2008.
ISSN: ISSN 0027-8424
PubMed: 18483193
DOI: 10.1073/PNAS.0801950105