Calcium in PDB 1uow: Calcium Binding Domain C2B

The structure of Calcium Binding Domain C2B, PDB code: 1uow was solved by Y.Cheng, S.M.Sequeira, T.H.Sollner, D.J.Patel, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	20 / 1.04
Space group	P 32 2 1
Cell size a, b, c (Å), α, β, γ (°)	54.550, 54.550, 103.590, 90.00, 90.00, 120.00
R / Rfree (%)	16.57 / 18.352

The binding sites of Calcium atom in the Calcium Binding Domain C2B (pdb code 1uow). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the Calcium Binding Domain C2B, PDB code: 1uow:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the Calcium Binding Domain C2B


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Calcium Binding Domain C2B within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca1419 b:19.7 occ:1.00 O A:HOH2036 2.3 27.8 1.0 O A:HOH2107 2.4 20.2 1.0 OD1 A:ASP363 2.4 16.1 1.0 OD1 A:ASP303 2.5 20.3 1.0 O A:MET302 2.5 19.1 1.0 O A:HOH2038 2.5 27.9 1.0 OD2 A:ASP365 2.6 21.5 1.0 OD1 A:ASP365 2.8 19.6 1.0 CG A:ASP365 3.1 18.1 1.0 C A:MET302 3.5 18.3 1.0 CG A:ASP363 3.6 13.3 1.0 CG A:ASP303 3.7 20.7 1.0 CA A:CA1420 3.7 17.7 1.0 O A:HOH2121 3.8 17.3 1.0 CA A:ASP303 4.2 19.8 1.0 N A:ASP303 4.2 18.6 1.0 CB A:MET302 4.2 16.5 1.0 OD2 A:ASP363 4.3 15.9 1.0 OD2 A:ASP303 4.5 22.1 1.0 CB A:ASP303 4.5 20.2 1.0 CA A:MET302 4.5 16.9 1.0 CB A:ASP363 4.6 12.2 1.0 CB A:ASP365 4.6 15.3 1.0 O A:HOH2109 4.8 23.4 1.0 OD2 A:ASP371 4.9 27.8 1.0

Calcium binding site 2 out of 2 in the Calcium Binding Domain C2B


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Calcium Binding Domain C2B within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca1420 b:17.7 occ:1.00 O A:HOH2109 2.4 23.4 1.0 O A:TYR364 2.4 12.0 1.0 OD1 A:ASP365 2.5 19.6 1.0 OD1 A:ASP309 2.5 19.0 1.0 OD1 A:ASP303 2.5 20.3 1.0 OD2 A:ASP363 2.5 15.9 1.0 OD2 A:ASP303 2.6 22.1 1.0 OD1 A:ASP363 2.7 16.1 1.0 CG A:ASP303 2.9 20.7 1.0 CG A:ASP363 3.0 13.3 1.0 C A:TYR364 3.5 10.9 1.0 CG A:ASP309 3.5 15.2 1.0 CG A:ASP365 3.6 18.1 1.0 CA A:CA1419 3.7 19.7 1.0 CB A:ASP309 3.9 14.1 1.0 N A:ASP309 4.2 14.3 1.0 N A:ASP365 4.2 11.8 1.0 CA A:ASP365 4.3 13.6 1.0 OD2 A:ASP365 4.4 21.5 1.0 CB A:ASP363 4.4 12.2 1.0 N A:TYR364 4.4 10.0 1.0 CB A:ASP303 4.4 20.2 1.0 O A:HOH2037 4.6 39.5 1.0 CB A:ASP365 4.6 15.3 1.0 CA A:TYR364 4.6 10.3 1.0 C A:ASP363 4.6 10.2 1.0 O A:HOH2038 4.6 27.9 1.0 OD2 A:ASP309 4.7 17.5 1.0 CA A:ASP309 4.7 12.7 1.0 O A:HOH2112 4.7 27.9 1.0 C A:SER308 4.9 13.8 1.0 O A:ASP363 4.9 11.5 1.0 CA A:ASP363 5.0 10.6 1.0

Y.Cheng, S.M.Sequeira, L.Malinina, V.Tereshko, T.H.Sollner, D.J.Patel. Crystallographic Identification of CA2+ and SR2+ Coordination Sites in Synaptotagmin I C2B Domain Protein Sci. V. 13 2665 2004.
ISSN: ISSN 0961-8368
PubMed: 15340165
DOI: 10.1110/PS.04832604