Calcium in PDB 6e0a: Crystal Structure of Helicobacter Pylori Tlpa Chemoreceptor Ligand Binding Domain

The structure of Crystal Structure of Helicobacter Pylori Tlpa Chemoreceptor Ligand Binding Domain, PDB code: 6e0a was solved by S.J.Remington, K.Guillemin, E.Sweeney, A.Perkins, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	33.22 / 2.43
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	72.779, 59.468, 77.723, 90.00, 114.09, 90.00
R / Rfree (%)	19.7 / 25.7

The structure of Crystal Structure of Helicobacter Pylori Tlpa Chemoreceptor Ligand Binding Domain also contains other interesting chemical elements:

Chlorine	(Cl)	1 atom
Zinc	(Zn)	9 atoms

The binding sites of Calcium atom in the Crystal Structure of Helicobacter Pylori Tlpa Chemoreceptor Ligand Binding Domain (pdb code 6e0a). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total only one binding site of Calcium was determined in the Crystal Structure of Helicobacter Pylori Tlpa Chemoreceptor Ligand Binding Domain, PDB code: 6e0a:

Calcium binding site 1 out of 1 in the Crystal Structure of Helicobacter Pylori Tlpa Chemoreceptor Ligand Binding Domain


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Crystal Structure of Helicobacter Pylori Tlpa Chemoreceptor Ligand Binding Domain within 5.0Å range: probe atom residue distance (Å) B Occ B:Ca306 b:80.0 occ:1.00 O B:HOH409 2.4 32.1 1.0 OD1 B:ASP21 2.9 30.5 1.0 NH1 A:ARG172 3.0 31.9 1.0 O A:HOH416 3.0 32.3 1.0 CG B:ASP21 3.2 28.6 1.0 O A:HOH462 3.3 43.4 1.0 OD2 B:ASP21 3.3 37.2 1.0 OG A:SER22 3.4 49.5 1.0 NH2 A:ARG172 3.6 39.1 1.0 O A:HOH445 3.6 36.6 1.0 CZ A:ARG172 3.7 38.1 1.0 CB B:ASP21 4.3 25.3 1.0 CB A:SER22 4.6 30.0 1.0 CE A:LYS26 4.7 28.0 1.0 O A:SER22 4.9 28.9 1.0 NE A:ARG172 5.0 39.0 1.0

E.G.Sweeney, A.Perkins, K.Kallio, S.James Remington, K.Guillemin. Structures of the Ligand-Binding Domain of Helicobacter Pylori Chemoreceptor Tlpa. Protein Sci. V. 27 1961 2018.
ISSN: ESSN 1469-896X
PubMed: 30171638
DOI: 10.1002/PRO.3503