Calcium in PDB 1kuh: Zinc Protease From Streptomyces Caespitosus

The structure of Zinc Protease From Streptomyces Caespitosus, PDB code: 1kuh was solved by G.Kurisu, T.Kinoshita, A.Sugimoto, A.Nagara, Y.Kai, N.Kasai, S.Harada, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	10.00 / 1.60
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	55.210, 55.270, 37.600, 90.00, 90.00, 90.00
R / Rfree (%)	n/a / n/a

The structure of Zinc Protease From Streptomyces Caespitosus also contains other interesting chemical elements:

Zinc

(Zn)

1 atom

The binding sites of Calcium atom in the Zinc Protease From Streptomyces Caespitosus (pdb code 1kuh). 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 Zinc Protease From Streptomyces Caespitosus, PDB code: 1kuh:

Calcium binding site 1 out of 1 in the Zinc Protease From Streptomyces Caespitosus


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Zinc Protease From Streptomyces Caespitosus within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca134 b:8.5 occ:1.00 OG1 A:THR78 2.8 1.7 1.0 OD1 A:ASP76 2.8 5.9 1.0 OD2 A:ASP76 2.8 1.6 1.0 O A:HOH151 2.8 10.2 1.0 O A:HOH141 2.8 8.2 1.0 O A:HOH160 2.9 21.0 1.0 O A:HOH155 2.9 20.2 1.0 CG A:ASP76 3.2 6.2 1.0 CB A:THR78 3.5 1.6 1.0 N A:THR78 4.1 2.4 1.0 CA A:THR78 4.4 1.6 1.0 OE2 A:GLU17 4.5 13.5 1.0 CG2 A:THR78 4.6 1.6 1.0 OE1 A:GLU17 4.6 13.3 1.0 CB A:ASP76 4.7 5.2 1.0

G.Kurisu, T.Kinoshita, A.Sugimoto, A.Nagara, Y.Kai, N.Kasai, S.Harada. Structure of the Zinc Endoprotease From Streptomyces Caespitosus. J.Biochem.(Tokyo) V. 121 304 1997.
ISSN: ISSN 0021-924X
PubMed: 9089404