Calcium in PDB 1xuk: Trypsin-Babim-Sulfate, pH 5.9

All present enzymatic activity of Trypsin-Babim-Sulfate, pH 5.9:
3.4.21.4;

The structure of Trypsin-Babim-Sulfate, pH 5.9, PDB code: 1xuk was solved by B.A.Katz, J.M.Clark, J.S.Finer-Moore, T.E.Jenkins, C.R.Johnson, M.J.Rose, C.Luong, W.R.Moore, R.M.Stroud, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	N/A / 1.80
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	54.800, 58.700, 67.600, 90.00, 90.00, 90.00
R / Rfree (%)	13 / 17.1

The binding sites of Calcium atom in the Trypsin-Babim-Sulfate, pH 5.9 (pdb code 1xuk). 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 Trypsin-Babim-Sulfate, pH 5.9, PDB code: 1xuk:

Calcium binding site 1 out of 1 in the Trypsin-Babim-Sulfate, pH 5.9


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Trypsin-Babim-Sulfate, pH 5.9 within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca247 b:31.4 occ:1.00 O A:VAL75 2.2 11.0 1.0 O A:ASN72 2.2 11.8 1.0 O A:HOH250 2.3 14.6 1.0 O A:HOH260 2.3 13.5 1.0 OE1 A:GLU70 2.4 14.8 1.0 OE2 A:GLU80 2.4 11.8 1.0 H2 A:HOH250 3.0 0.0 1.0 H2 A:HOH260 3.1 0.0 1.0 H1 A:HOH260 3.1 0.0 1.0 H1 A:HOH250 3.1 0.0 1.0 C A:VAL75 3.3 12.2 1.0 CD A:GLU70 3.4 14.1 1.0 C A:ASN72 3.4 11.3 1.0 CD A:GLU80 3.5 12.8 1.0 H A:VAL75 3.6 0.0 1.0 H A:GLU77 3.6 0.0 1.0 OE2 A:GLU70 3.7 15.3 1.0 H A:ASP71 3.7 0.0 1.0 CA A:VAL76 4.0 16.2 1.0 CG A:GLU80 4.0 13.3 1.0 N A:VAL76 4.0 13.2 1.0 N A:VAL75 4.0 15.8 1.0 N A:GLU77 4.0 16.6 1.0 OE1 A:GLU77 4.2 16.4 1.0 N A:ILE73 4.2 12.2 1.0 CA A:ILE73 4.2 13.8 1.0 CA A:VAL75 4.2 14.8 1.0 N A:ASN72 4.3 9.7 1.0 CA A:ASN72 4.3 12.0 1.0 CG A:GLU77 4.3 17.3 1.0 H A:ASN72 4.4 0.0 1.0 O A:HOH267 4.4 10.3 1.0 C A:ILE73 4.5 11.7 1.0 C A:VAL76 4.5 18.5 1.0 N A:ASP71 4.5 11.8 1.0 OE1 A:GLU80 4.6 14.8 1.0 CB A:ASN72 4.6 11.7 1.0 CD A:GLU77 4.7 19.0 1.0 CG A:GLU70 4.7 11.8 1.0 O A:HOH297 4.7 22.0 1.0 CB A:GLU77 4.7 18.7 1.0 N A:ASN74 4.8 10.4 1.0 O A:ILE73 4.9 12.7 1.0 CA A:GLU70 4.9 12.4 1.0 CB A:VAL75 4.9 14.9 1.0 H1 A:HOH267 4.9 0.0 1.0 H A:VAL76 4.9 0.0 1.0 H A:ASN74 4.9 0.0 1.0 CB A:GLU70 4.9 11.9 1.0 C A:ASP71 4.9 12.7 1.0

B.A.Katz, J.M.Clark, J.S.Finer-Moore, T.E.Jenkins, C.R.Johnson, M.J.Ross, C.Luong, W.R.Moore, R.M.Stroud. Design of Potent Selective Zinc-Mediated Serine Protease Inhibitors. Nature V. 391 608 1998.
ISSN: ISSN 0028-0836
PubMed: 9468142
DOI: 10.1038/35422