Calcium in PDB 1wl7: Structure of the Thermostable Arabinanase

All present enzymatic activity of Structure of the Thermostable Arabinanase:
3.2.1.99;

The structure of Structure of the Thermostable Arabinanase, PDB code: 1wl7 was solved by A.Yamaguchi, T.Tada, T.Nakaniwa, T.Kitatani, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	30.00 / 1.90
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	40.270, 77.810, 89.680, 90.00, 90.00, 90.00
R / Rfree (%)	18.3 / 22.5

The binding sites of Calcium atom in the Structure of the Thermostable Arabinanase (pdb code 1wl7). 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 Structure of the Thermostable Arabinanase, PDB code: 1wl7:

Calcium binding site 1 out of 1 in the Structure of the Thermostable Arabinanase


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Structure of the Thermostable Arabinanase within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca314 b:20.0 occ:1.00 O A:HOH321 2.6 11.7 1.0 O A:HOH374 2.7 16.5 1.0 O A:HOH338 2.7 14.8 1.0 O A:HOH317 2.7 15.1 1.0 O A:HOH412 2.8 25.3 1.0 O A:HOH343 2.8 17.5 1.0 NE2 A:HIS271 2.8 17.4 1.0 CD2 A:HIS271 3.2 17.6 1.0 O A:PRO148 3.9 15.8 1.0 CE1 A:HIS271 4.0 14.8 1.0 O A:PRO86 4.3 13.6 1.0 O A:CYS272 4.4 12.2 1.0 CG A:HIS271 4.5 16.8 1.0 O A:PRO203 4.5 13.8 1.0 CB A:ALA85 4.5 14.2 1.0 CG1 A:VAL29 4.5 19.0 1.0 O A:ALA85 4.7 14.1 1.0 ND1 A:HIS271 4.9 15.6 1.0 CD2 A:PHE204 4.9 15.3 1.0 CB A:ALA202 4.9 12.2 1.0 O A:ASP147 4.9 17.3 1.0 CA A:ALA202 5.0 14.0 1.0 C A:ALA85 5.0 13.5 1.0 O A:ALA202 5.0 13.1 1.0 O A:PRO28 5.0 17.5 1.0 C A:ASP147 5.0 15.9 1.0

A.Yamaguchi, T.Tada, K.Wada, T.Nakaniwa, T.Kitatani, Y.Sogabe, M.Takao, T.Sakai, K.Nishimura. Structural Basis For Thermostability of Endo-1,5-Alpha-L-Arabinanase From Bacillus Thermodenitrificans Ts-3. J.Biochem.(Tokyo) V. 137 587 2005.
ISSN: ISSN 0021-924X
PubMed: 15944411
DOI: 10.1093/JB/MVI078