Calcium in PDB 1s1a: Pterocarpus Angolensis Seed Lectin (Pal) with One Binding Site Free and One Binding Site Containing the Disaccharide Man(A1-3)Manme

The structure of Pterocarpus Angolensis Seed Lectin (Pal) with One Binding Site Free and One Binding Site Containing the Disaccharide Man(A1-3)Manme, PDB code: 1s1a was solved by L.Buts, A.Imberty, L.Wyns, S.Beeckmans, R.Loris, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	25.00 / 1.80
Space group	P 21 21 21
Cell size a, b, c (Å), α, β, γ (°)	56.868, 83.212, 123.230, 90.00, 90.00, 90.00
R / Rfree (%)	18.5 / 20.5

The structure of Pterocarpus Angolensis Seed Lectin (Pal) with One Binding Site Free and One Binding Site Containing the Disaccharide Man(A1-3)Manme also contains other interesting chemical elements:

Manganese

(Mn)

2 atoms

The binding sites of Calcium atom in the Pterocarpus Angolensis Seed Lectin (Pal) with One Binding Site Free and One Binding Site Containing the Disaccharide Man(A1-3)Manme (pdb code 1s1a). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the Pterocarpus Angolensis Seed Lectin (Pal) with One Binding Site Free and One Binding Site Containing the Disaccharide Man(A1-3)Manme, PDB code: 1s1a:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the Pterocarpus Angolensis Seed Lectin (Pal) with One Binding Site Free and One Binding Site Containing the Disaccharide Man(A1-3)Manme


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Pterocarpus Angolensis Seed Lectin (Pal) with One Binding Site Free and One Binding Site Containing the Disaccharide Man(A1-3)Manme within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca272 b:17.3 occ:1.00 OD2 A:ASP141 2.3 20.5 1.0 O A:PHE132 2.4 17.7 1.0 OD1 A:ASN138 2.4 19.6 1.0 O A:HOH304 2.4 18.7 1.0 OD2 A:ASP130 2.4 16.8 1.0 O A:HOH303 2.5 17.6 1.0 OD1 A:ASP130 2.5 17.2 1.0 CG A:ASP130 2.8 14.3 1.0 CG A:ASP141 3.4 16.5 1.0 CG A:ASN138 3.4 29.8 1.0 C A:PHE132 3.6 19.4 1.0 OD1 A:ASP141 3.9 15.6 1.0 CB A:ASN138 4.0 20.0 1.0 MN A:MN271 4.2 17.0 1.0 CB A:ASP130 4.3 13.1 1.0 CA A:PHE132 4.5 22.6 1.0 NE1 A:TRP140 4.5 19.8 1.0 N A:PHE132 4.5 18.5 1.0 N A:TYR133 4.5 17.1 1.0 CA A:TYR133 4.6 15.0 1.0 ND2 A:ASN138 4.6 24.0 1.0 O A:HOH302 4.6 17.3 1.0 O A:GLY106 4.6 22.0 1.0 CA A:GLY106 4.6 22.0 1.0 CB A:ASP141 4.6 17.2 1.0 CB A:PHE132 4.6 20.7 1.0 O A:ASP86 4.7 17.5 1.0 OD1 A:ASP86 4.8 21.3 1.0 CE1 A:HIS146 4.9 19.8 1.0

Calcium binding site 2 out of 2 in the Pterocarpus Angolensis Seed Lectin (Pal) with One Binding Site Free and One Binding Site Containing the Disaccharide Man(A1-3)Manme


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Pterocarpus Angolensis Seed Lectin (Pal) with One Binding Site Free and One Binding Site Containing the Disaccharide Man(A1-3)Manme within 5.0Å range: probe atom residue distance (Å) B Occ B:Ca274 b:17.5 occ:1.00 OD2 B:ASP141 2.3 19.9 1.0 O B:PHE132 2.3 17.8 1.0 O B:HOH308 2.4 16.4 1.0 O B:HOH307 2.4 16.5 1.0 OD1 B:ASN138 2.4 23.0 1.0 OD1 B:ASP130 2.4 15.7 1.0 OD2 B:ASP130 2.4 13.8 1.0 CG B:ASP130 2.8 16.8 1.0 CG B:ASP141 3.4 19.0 1.0 CG B:ASN138 3.5 30.2 1.0 C B:PHE132 3.6 23.4 1.0 OD1 B:ASP141 3.9 15.8 1.0 CB B:ASN138 4.0 25.3 1.0 MN B:MN273 4.2 16.2 1.0 CB B:ASP130 4.3 17.2 1.0 CA B:PHE132 4.4 16.7 1.0 N B:PHE132 4.4 19.2 1.0 NE1 B:TRP140 4.5 18.4 1.0 N B:TYR133 4.5 21.6 1.0 CB B:PHE132 4.6 16.0 1.0 CA B:TYR133 4.6 19.8 1.0 O B:HOH306 4.6 16.5 1.0 ND2 B:ASN138 4.6 21.7 1.0 CB B:ASP141 4.6 15.7 1.0 CA B:GLY106 4.7 17.7 1.0 O B:ASP86 4.7 16.0 1.0 O B:GLY106 4.7 19.5 1.0 OD1 B:ASP86 4.8 18.0 1.0 CE1 B:HIS146 4.9 16.4 1.0

L.Buts, A.Imberty, L.Wyns, S.Beeckmans, R.Loris. N/A N/A.