Calcium in PDB 1r13: Carbohydrate Recognition and Neck Domains of Surfactant Protein A (Sp- A)

The structure of Carbohydrate Recognition and Neck Domains of Surfactant Protein A (Sp- A), PDB code: 1r13 was solved by J.F.Head, T.R.Mealy, F.X.Mccormack, B.A.Seaton, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	50.00 / 2.10
Space group	P 63
Cell size a, b, c (Å), α, β, γ (°)	97.680, 97.680, 44.540, 90.00, 90.00, 120.00
R / Rfree (%)	22.1 / 24.9

The binding sites of Calcium atom in the Carbohydrate Recognition and Neck Domains of Surfactant Protein A (Sp- A) (pdb code 1r13). 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 Carbohydrate Recognition and Neck Domains of Surfactant Protein A (Sp- A), PDB code: 1r13:

Calcium binding site 1 out of 1 in the Carbohydrate Recognition and Neck Domains of Surfactant Protein A (Sp- A)


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Carbohydrate Recognition and Neck Domains of Surfactant Protein A (Sp- A) within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca300 b:29.9 occ:0.92 OD1 A:ASP215 2.3 32.2 1.0 O A:HOH412 2.3 37.1 1.0 O A:ASP215 2.3 35.9 1.0 OE1 A:GLU195 2.4 26.7 1.0 OD1 A:ASN214 2.5 31.4 1.0 O A:HOH411 2.6 62.4 1.0 O A:ARG197 2.9 60.2 1.0 CG A:ASP215 3.3 34.6 1.0 CD A:GLU195 3.4 27.1 1.0 C A:ASP215 3.4 35.4 1.0 N A:ASP215 3.6 32.0 1.0 CG A:ASN214 3.6 30.7 1.0 C A:ARG197 3.7 61.5 1.0 OE2 A:GLU195 3.7 27.1 1.0 N A:ARG197 3.8 49.8 1.0 CA A:ASP215 3.9 33.9 1.0 CG A:GLU202 4.0 90.7 1.0 OD2 A:ASP215 4.0 32.2 1.0 CA A:ARG197 4.1 56.3 1.0 CB A:ARG197 4.1 54.6 1.0 O A:HOH405 4.2 85.5 1.0 CB A:ASP215 4.2 32.8 1.0 OE2 A:GLU202 4.3 95.9 1.0 ND2 A:ASN214 4.3 25.1 1.0 C A:ASN214 4.4 30.9 1.0 N A:ARG216 4.6 37.0 1.0 CB A:GLU202 4.6 85.6 1.0 CG A:GLU195 4.6 28.5 1.0 N A:GLY198 4.7 67.8 1.0 CD A:GLU202 4.7 93.6 1.0 CA A:ASN214 4.7 29.0 1.0 CB A:ASN214 4.7 27.7 1.0 C A:PRO196 4.9 44.2 1.0

J.F.Head, T.R.Mealy, F.X.Mccormack, B.A.Seaton. Crystal Structure of Trimeric Carbohydrate Recognition and Neck Domains of Surfactant Protein A J.Biol.Chem. V. 278 43254 2003.
ISSN: ISSN 0021-9258
PubMed: 12913002
DOI: 10.1074/JBC.M305628200