Calcium in PDB 1ax1: Erythrina Corallodendron Lectin in Complex with Lactose

The structure of Erythrina Corallodendron Lectin in Complex with Lactose, PDB code: 1ax1 was solved by B.Shaanan, S.Elgavish, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	6.00 / 1.95
Space group	C 1 2 1
Cell size a, b, c (Å), α, β, γ (°)	84.060, 72.970, 71.240, 90.00, 113.39, 90.00
R / Rfree (%)	17.3 / 20

The structure of Erythrina Corallodendron Lectin in Complex with Lactose also contains other interesting chemical elements:

Manganese

(Mn)

1 atom

The binding sites of Calcium atom in the Erythrina Corallodendron Lectin in Complex with Lactose (pdb code 1ax1). 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 Erythrina Corallodendron Lectin in Complex with Lactose, PDB code: 1ax1:

Calcium binding site 1 out of 1 in the Erythrina Corallodendron Lectin in Complex with Lactose


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Erythrina Corallodendron Lectin in Complex with Lactose within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca290 b:24.7 occ:1.00 O A:HOH529 2.2 20.1 1.0 O A:PHE131 2.3 23.6 1.0 O A:HOH530 2.3 22.9 1.0 OD1 A:ASN133 2.4 26.5 1.0 OD2 A:ASP136 2.4 22.1 1.0 OD1 A:ASP129 2.4 20.6 1.0 OD2 A:ASP129 2.5 21.8 1.0 CG A:ASP129 2.8 20.1 1.0 CG A:ASP136 3.5 20.4 1.0 CG A:ASN133 3.5 24.7 1.0 C A:PHE131 3.5 22.7 1.0 OD1 A:ASP136 4.0 23.2 1.0 N A:ASN133 4.1 26.4 1.0 CB A:ASN133 4.2 24.2 1.0 MN A:MN289 4.2 25.2 1.0 CB A:ASP129 4.3 20.6 1.0 N A:PHE131 4.3 20.4 1.0 CA A:PHE131 4.3 22.4 1.0 O A:HOH531 4.4 21.0 1.0 NE1 A:TRP135 4.5 24.9 1.0 N A:SER132 4.5 25.2 1.0 CB A:PHE131 4.6 21.4 1.0 ND2 A:ASN133 4.6 27.4 1.0 O A:GLY107 4.6 26.4 1.0 O A:ASP89 4.6 21.1 1.0 CA A:SER132 4.7 25.5 1.0 CA A:GLY107 4.7 25.4 1.0 CB A:ASP136 4.7 23.7 1.0 OD1 A:ASP89 4.7 23.1 1.0 CA A:ASN133 4.8 25.7 1.0 C A:SER132 4.8 26.9 1.0 CD1 A:PHE131 4.8 21.9 1.0

S.Elgavish, B.Shaanan. Structures of the Erythrina Corallodendron Lectin and of Its Complexes with Mono- and Disaccharides. J.Mol.Biol. V. 277 917 1998.
ISSN: ISSN 0022-2836
PubMed: 9545381
DOI: 10.1006/JMBI.1998.1664