Calcium in PDB 1h1a: Thermophilic Beta-1,4-Xylanase From Chaetomium Thermophilum

All present enzymatic activity of Thermophilic Beta-1,4-Xylanase From Chaetomium Thermophilum:
3.2.1.8;

The structure of Thermophilic Beta-1,4-Xylanase From Chaetomium Thermophilum, PDB code: 1h1a was solved by N.Hakulinen, J.Rouvinen, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	99.00 / 1.75
Space group	P 21 21 2
Cell size a, b, c (Å), α, β, γ (°)	108.240, 57.150, 65.680, 90.00, 90.00, 90.00
R / Rfree (%)	17.9 / 21.6

The binding sites of Calcium atom in the Thermophilic Beta-1,4-Xylanase From Chaetomium Thermophilum (pdb code 1h1a). 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 Thermophilic Beta-1,4-Xylanase From Chaetomium Thermophilum, PDB code: 1h1a:

Calcium binding site 1 out of 1 in the Thermophilic Beta-1,4-Xylanase From Chaetomium Thermophilum


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Thermophilic Beta-1,4-Xylanase From Chaetomium Thermophilum within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca1195 b:18.8 occ:1.00 OG1 B:THR10 3.1 1.6 0.5 OG1 A:THR10 3.2 4.2 0.5 CG2 A:THR10 3.2 12.6 0.5 N A:GLY13 3.3 11.9 1.0 CG2 B:THR10 3.3 11.5 0.5 N B:GLY13 3.3 12.4 1.0 N A:ASN12 3.6 11.0 1.0 O A:THR10 3.6 9.0 0.5 O B:THR10 3.7 8.5 0.5 N B:ASN12 3.7 11.4 1.0 C A:THR10 3.7 9.3 0.5 O A:THR10 3.7 7.0 0.5 C B:THR10 3.7 8.0 0.5 C A:THR10 3.7 8.7 0.5 CB B:THR10 3.8 8.4 0.5 O B:THR10 3.8 7.4 0.5 C B:THR10 3.8 7.6 0.5 CB A:THR10 3.8 8.2 0.5 CB B:THR10 3.8 5.8 0.5 CB A:THR10 3.8 10.5 0.5 N A:HIS11 3.9 10.5 1.0 N B:HIS11 3.9 9.7 1.0 CA A:GLY13 4.0 14.4 1.0 CA B:GLY13 4.0 14.0 1.0 C A:HIS11 4.0 12.0 1.0 CA A:HIS11 4.0 10.4 1.0 C B:HIS11 4.1 11.5 1.0 CA B:HIS11 4.1 10.4 1.0 C A:ASN12 4.2 12.5 1.0 CA A:ASN12 4.2 11.4 1.0 C B:ASN12 4.3 11.7 1.0 CA B:ASN12 4.3 12.4 1.0 CA A:THR10 4.4 8.9 0.5 CA B:THR10 4.4 7.5 0.5 CA A:THR10 4.4 9.5 0.5 CA B:THR10 4.4 8.7 0.5 C A:GLY13 4.8 15.3 1.0 C B:GLY13 4.8 13.8 1.0 O A:HIS11 4.8 12.5 1.0 O B:HIS11 4.8 11.3 1.0 O A:HOH2024 4.9 26.1 1.0 N A:TYR14 5.0 13.7 1.0 OG1 B:THR10 5.0 10.6 0.5

N.Hakulinen, O.Turunen, J.Janis, M.Leisola, J.Rouvinen. Three-Dimensional Structures of Thermophilic Beta-1,4-Xylanases From Chaetomium Thermophilum and Nonomuraea Flexuosa. Comparison of Twelve Xylanases in Relation to Their Thermal Stability. Eur.J.Biochem. V. 270 1399 2003.
ISSN: ISSN 0014-2956
PubMed: 12653995
DOI: 10.1046/J.1432-1033.2003.03496.X