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Calcium in PDB 2sns: Staphylococcal Nuclease. Proposed Mechanism of Action Based on Structure of Enzyme-Thymidine 3(Prime),5(Prime)-Biphosphate-Calcium Ion Complex at 1.5-Angstroms Resolution

Enzymatic activity of Staphylococcal Nuclease. Proposed Mechanism of Action Based on Structure of Enzyme-Thymidine 3(Prime),5(Prime)-Biphosphate-Calcium Ion Complex at 1.5-Angstroms Resolution

All present enzymatic activity of Staphylococcal Nuclease. Proposed Mechanism of Action Based on Structure of Enzyme-Thymidine 3(Prime),5(Prime)-Biphosphate-Calcium Ion Complex at 1.5-Angstroms Resolution:
3.1.31.1;

Protein crystallography data

The structure of Staphylococcal Nuclease. Proposed Mechanism of Action Based on Structure of Enzyme-Thymidine 3(Prime),5(Prime)-Biphosphate-Calcium Ion Complex at 1.5-Angstroms Resolution, PDB code: 2sns was solved by M.J.Legg, F.A.Cotton, E.E.Hazen Jr., with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) N/A / 1.50
Space group P 41
Cell size a, b, c (Å), α, β, γ (°) 48.190, 48.190, 63.400, 90.00, 90.00, 90.00
R / Rfree (%) n/a / n/a

Calcium Binding Sites:

The binding sites of Calcium atom in the Staphylococcal Nuclease. Proposed Mechanism of Action Based on Structure of Enzyme-Thymidine 3(Prime),5(Prime)-Biphosphate-Calcium Ion Complex at 1.5-Angstroms Resolution (pdb code 2sns). 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 Staphylococcal Nuclease. Proposed Mechanism of Action Based on Structure of Enzyme-Thymidine 3(Prime),5(Prime)-Biphosphate-Calcium Ion Complex at 1.5-Angstroms Resolution, PDB code: 2sns:

Calcium binding site 1 out of 1 in 2sns

Go back to Calcium Binding Sites List in 2sns
Calcium binding site 1 out of 1 in the Staphylococcal Nuclease. Proposed Mechanism of Action Based on Structure of Enzyme-Thymidine 3(Prime),5(Prime)-Biphosphate-Calcium Ion Complex at 1.5-Angstroms Resolution


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Staphylococcal Nuclease. Proposed Mechanism of Action Based on Structure of Enzyme-Thymidine 3(Prime),5(Prime)-Biphosphate-Calcium Ion Complex at 1.5-Angstroms Resolution within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca150

b:0.0
occ:1.00
 OD1 A:ASP21 2.4 1.0 1.0
OD1 A:ASP40 2.6 1.0 1.0
O6P A:THP151 2.6 0.0 1.0
O A:THR41 2.9 1.0 1.0
NH2 A:ARG35 3.4 1.0 1.0
CG A:ASP21 3.5 1.0 1.0
N A:THR41 3.6 1.0 1.0
OG1 A:THR41 3.6 1.0 1.0
CG A:ASP40 3.8 1.0 1.0
C A:THR41 3.9 1.0 1.0
P2 A:THP151 3.9 0.0 1.0
CA A:THR41 4.2 1.0 1.0
O4P A:THP151 4.2 0.0 1.0
OD2 A:ASP21 4.3 1.0 1.0
CZ A:ARG35 4.3 1.0 1.0
CB A:ASP21 4.3 1.0 1.0
CB A:THR41 4.4 1.0 1.0
C A:ASP40 4.5 1.0 1.0
CA A:ASP40 4.5 1.0 1.0
OE1 A:GLU43 4.5 1.0 1.0
O5P A:THP151 4.5 0.0 1.0
OD2 A:ASP40 4.6 1.0 1.0
OD1 A:ASP19 4.7 1.0 1.0
CB A:ASP40 4.7 1.0 1.0
NE A:ARG35 4.8 1.0 1.0
N A:GLU43 4.8 1.0 1.0
CA A:GLU43 4.9 1.0 1.0
C A:PRO42 5.0 1.0 1.0

Reference:

F.A.Cotton, E.E.Hazen Jr., M.J.Legg. Thesis, Texas Agricultural 1977AND Mechanical University.
ISSN: ISSN 0531-5131
Page generated: Tue Jul 8 08:22:33 2025

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