Sodium in PDB 1hvx: Bacillus Stearothermophilus Alpha-Amylase

All present enzymatic activity of Bacillus Stearothermophilus Alpha-Amylase:
3.2.1.1;

The structure of Bacillus Stearothermophilus Alpha-Amylase, PDB code: 1hvx was solved by D.Suvd, Z.Fujimoto, K.Takase, M.Matsumura, H.Mizuno, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	8.00 / 2.00
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	53.550, 93.119, 53.275, 90.00, 109.31, 90.00
R / Rfree (%)	15.4 / 19.7

The structure of Bacillus Stearothermophilus Alpha-Amylase also contains other interesting chemical elements:

Calcium

(Ca)

3 atoms

The binding sites of Sodium atom in the Bacillus Stearothermophilus Alpha-Amylase (pdb code 1hvx). This binding sites where shown within 5.0 Angstroms radius around Sodium atom.
In total only one binding site of Sodium was determined in the Bacillus Stearothermophilus Alpha-Amylase, PDB code: 1hvx:

Sodium binding site 1 out of 1 in the Bacillus Stearothermophilus Alpha-Amylase


Mono view


Stereo pair view

A full contact list of Sodium with other atoms in the Na binding site number 1 of Bacillus Stearothermophilus Alpha-Amylase within 5.0Å range: probe atom residue distance (Å) B Occ A:Na519 b:2.0 occ:1.00 O A:LEU204 2.3 4.7 1.0 OD2 A:ASP203 2.5 5.6 1.0 OD2 A:ASP186 2.5 5.3 1.0 OD2 A:ASP162 2.5 4.4 1.0 OD2 A:ASP197 2.5 3.1 1.0 OD1 A:ASP197 2.9 3.9 1.0 CG A:ASP197 3.1 6.0 1.0 CG A:ASP186 3.4 6.3 1.0 C A:LEU204 3.4 5.9 1.0 CG A:ASP203 3.4 5.1 1.0 CG A:ASP162 3.5 7.7 1.0 O A:HOH746 3.5 3.7 1.0 O A:HOH609 3.6 7.1 1.0 OD1 A:ASP203 3.8 3.4 1.0 CB A:ASP162 3.8 4.2 1.0 CA A:ASP205 3.9 6.8 1.0 N A:ASP205 4.0 6.8 1.0 OD1 A:ASP186 4.1 7.8 1.0 CB A:ASP186 4.1 4.2 1.0 CA A:CA517 4.1 7.4 1.0 N A:MET206 4.3 6.9 1.0 N A:ASP186 4.4 6.0 1.0 N A:LEU204 4.5 4.3 1.0 CA A:LEU204 4.5 4.8 1.0 OD1 A:ASP162 4.5 7.9 1.0 O A:ASP203 4.5 5.5 1.0 C A:ASP203 4.5 6.3 1.0 CB A:ASP197 4.6 5.0 1.0 CB A:ASP203 4.6 3.6 1.0 CA A:CA516 4.7 4.2 1.0 C A:ASP205 4.7 6.0 1.0 CA A:ASP186 4.9 6.8 1.0 CB A:ASP205 5.0 6.1 1.0

D.Suvd, Z.Fujimoto, K.Takase, M.Matsumura, H.Mizuno. Crystal Structure of Bacillus Stearothermophilus Alpha-Amylase: Possible Factors Determining the Thermostability. J.Biochem. V. 129 461 2001.
ISSN: ISSN 0021-924X
PubMed: 11226887
DOI: 10.1093/OXFORDJOURNALS.JBCHEM.A002878