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Calcium in PDB 1enc: Crystal Structures of the Binary CA2+ and Pdtp Complexes and the Ternary Complex of the Asp 21->Glu Mutant of Staphylococcal Nuclease. Implications For Catalysis and Ligand Binding

Enzymatic activity of Crystal Structures of the Binary CA2+ and Pdtp Complexes and the Ternary Complex of the Asp 21->Glu Mutant of Staphylococcal Nuclease. Implications For Catalysis and Ligand Binding

All present enzymatic activity of Crystal Structures of the Binary CA2+ and Pdtp Complexes and the Ternary Complex of the Asp 21->Glu Mutant of Staphylococcal Nuclease. Implications For Catalysis and Ligand Binding:
3.1.31.1;

Protein crystallography data

The structure of Crystal Structures of the Binary CA2+ and Pdtp Complexes and the Ternary Complex of the Asp 21->Glu Mutant of Staphylococcal Nuclease. Implications For Catalysis and Ligand Binding, PDB code: 1enc was solved by A.Libson, A.Gittis, E.E.Lattman, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) N/A / 1.95
Space group P 41
Cell size a, b, c (Å), α, β, γ (°) 48.050, 48.050, 63.000, 90.00, 90.00, 90.00
R / Rfree (%) n/a / n/a

Calcium Binding Sites:

The binding sites of Calcium atom in the Crystal Structures of the Binary CA2+ and Pdtp Complexes and the Ternary Complex of the Asp 21->Glu Mutant of Staphylococcal Nuclease. Implications For Catalysis and Ligand Binding (pdb code 1enc). 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 Crystal Structures of the Binary CA2+ and Pdtp Complexes and the Ternary Complex of the Asp 21->Glu Mutant of Staphylococcal Nuclease. Implications For Catalysis and Ligand Binding, PDB code: 1enc:

Calcium binding site 1 out of 1 in 1enc

Go back to Calcium Binding Sites List in 1enc
Calcium binding site 1 out of 1 in the Crystal Structures of the Binary CA2+ and Pdtp Complexes and the Ternary Complex of the Asp 21->Glu Mutant of Staphylococcal Nuclease. Implications For Catalysis and Ligand Binding


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Crystal Structures of the Binary CA2+ and Pdtp Complexes and the Ternary Complex of the Asp 21->Glu Mutant of Staphylococcal Nuclease. Implications For Catalysis and Ligand Binding within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca150

b:48.3
occ:1.00
 OE2 A:GLU43 1.9 59.7 1.0
OD1 A:ASP40 2.2 33.8 1.0
OE2 A:GLU21 2.7 31.3 1.0
OE1 A:GLU21 2.7 31.4 1.0
O4P A:THP151 2.7 39.5 1.0
CD A:GLU43 2.8 60.1 1.0
CD A:GLU21 3.1 26.8 1.0
O A:THR41 3.3 36.5 1.0
OE1 A:GLU43 3.4 60.4 1.0
CG A:ASP40 3.4 31.8 1.0
CG A:GLU43 3.9 57.6 1.0
P2 A:THP151 3.9 34.9 1.0
OD2 A:ASP40 4.0 38.2 1.0
NH2 A:ARG35 4.0 19.7 1.0
N A:THR41 4.2 26.3 1.0
O6P A:THP151 4.2 38.6 1.0
C A:THR41 4.4 35.5 1.0
O5P A:THP151 4.4 31.1 1.0
CG A:GLU21 4.5 22.6 1.0
CA A:ASP40 4.6 24.3 1.0
CB A:ASP40 4.6 27.2 1.0
OH A:TYR113 4.6 39.0 1.0
CE2 A:TYR113 4.8 34.4 1.0
C A:ASP40 4.8 25.9 1.0
OG1 A:THR41 4.8 32.0 1.0
CZ A:ARG35 4.9 21.7 1.0
CA A:THR41 4.9 32.7 1.0

Reference:

A.M.Libson, A.G.Gittis, E.E.Lattman. Crystal Structures of the Binary CA2+ and Pdtp Complexes and the Ternary Complex of the ASP21-->Glu Mutant of Staphylococcal Nuclease. Implications For Catalysis and Ligand Binding. Biochemistry V. 33 8007 1994.
ISSN: ISSN 0006-2960
PubMed: 8025105
DOI: 10.1021/BI00192A004
Page generated: Mon Jul 7 14:40:54 2025

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