Calcium in PDB 1o3w: Structure of the Inhibitor Free Triple Mutant (K53,56,120M) of Phospholipase A2

All present enzymatic activity of Structure of the Inhibitor Free Triple Mutant (K53,56,120M) of Phospholipase A2:
3.1.1.4;

The structure of Structure of the Inhibitor Free Triple Mutant (K53,56,120M) of Phospholipase A2, PDB code: 1o3w was solved by K.Sekar, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	19.90 / 1.85
Space group	P 31 2 1
Cell size a, b, c (Å), α, β, γ (°)	46.760, 46.760, 102.710, 90.00, 90.00, 120.00
R / Rfree (%)	19.3 / 23.2

The binding sites of Calcium atom in the Structure of the Inhibitor Free Triple Mutant (K53,56,120M) of Phospholipase A2 (pdb code 1o3w). 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 Structure of the Inhibitor Free Triple Mutant (K53,56,120M) of Phospholipase A2, PDB code: 1o3w:

Calcium binding site 1 out of 1 in the Structure of the Inhibitor Free Triple Mutant (K53,56,120M) of Phospholipase A2


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Structure of the Inhibitor Free Triple Mutant (K53,56,120M) of Phospholipase A2 within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca700 b:23.0 occ:1.00 O A:TYR28 2.2 21.9 1.0 O A:HOH203 2.3 34.9 1.0 O A:GLY30 2.4 27.8 1.0 OD2 A:ASP49 2.4 18.5 1.0 O A:HOH202 2.4 24.5 1.0 O A:GLY32 2.5 31.9 1.0 OD1 A:ASP49 2.6 20.2 1.0 CG A:ASP49 2.9 20.9 1.0 C A:TYR28 3.4 21.4 1.0 C A:GLY30 3.6 29.0 1.0 C A:GLY32 3.6 33.9 1.0 N A:GLY30 3.7 26.2 1.0 CA A:TYR28 4.1 21.4 1.0 N A:GLY32 4.1 34.1 1.0 O A:HOH205 4.1 22.8 1.0 CA A:GLY30 4.3 27.4 1.0 C A:LEU31 4.4 33.6 1.0 CB A:ASP49 4.4 18.9 1.0 O A:HOH224 4.4 32.2 1.0 CA A:GLY32 4.4 33.9 1.0 N A:CYS29 4.4 22.3 1.0 CB A:TYR28 4.5 21.9 1.0 C A:CYS29 4.6 25.1 1.0 N A:LEU31 4.6 30.1 1.0 CA A:CYS29 4.6 23.3 1.0 N A:GLY33 4.6 34.2 1.0 CA A:GLY33 4.7 34.3 1.0 CA A:LEU31 4.7 33.2 1.0 O A:LEU31 4.8 35.5 1.0 O A:HOH240 4.8 49.0 1.0 O A:CYS45 4.9 16.8 1.0

K.Sekar, S.Vaijayanthi Mala, M.Yogavel, D.Velmurugan, M.J.Poi, B.S.Vishwanath, T.V.Gowda, A.A.Jeyaprakash, M.D.Tsai. Crystal Structures of the Free and Anisic Acid Bound Triple Mutant of Phospholipase A2. J.Mol.Biol. V. 333 367 2003.
ISSN: ISSN 0022-2836
PubMed: 14529623
DOI: 10.1016/J.JMB.2003.08.032