Calcium in PDB 1ann: Annexin IV

The structure of Annexin IV, PDB code: 1ann was solved by R.B.Sutton, S.R.Sprang, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å)	8.00 / 2.30
Space group	P 1 21 1
Cell size a, b, c (Å), α, β, γ (°)	33.312, 124.709, 49.439, 90.00, 110.28, 90.00
R / Rfree (%)	24.9 / 18.6

The binding sites of Calcium atom in the Annexin IV (pdb code 1ann). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 2 binding sites of Calcium where determined in the Annexin IV, PDB code: 1ann:
Jump to Calcium binding site number: 1; 2;

Calcium binding site 1 out of 2 in the Annexin IV


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Annexin IV within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca319 b:17.5 occ:1.00 O A:GLY261 2.4 16.4 1.0 O A:MET257 2.4 11.8 1.0 O A:GLY259 2.4 18.8 1.0 OD1 A:ASP301 2.5 19.8 1.0 O A:HOH379B 2.6 24.6 1.0 OD2 A:ASP301 2.6 12.5 1.0 CG A:ASP301 2.9 13.1 1.0 C A:MET257 3.5 10.9 1.0 C A:GLY261 3.5 14.3 1.0 C A:GLY259 3.6 16.7 1.0 N A:GLY261 3.9 10.3 1.0 CA A:MET257 4.1 8.6 1.0 N A:GLY259 4.2 15.1 1.0 CA A:GLY261 4.2 10.8 1.0 C A:LEU260 4.2 12.6 1.0 OG1 A:THR262 4.3 9.8 1.0 C A:LYS258 4.3 13.0 1.0 CB A:ASP301 4.4 15.8 1.0 CA A:GLY259 4.5 15.2 1.0 N A:LEU260 4.5 17.0 1.0 N A:LYS258 4.5 14.5 1.0 N A:THR262 4.6 13.0 1.0 CA A:LEU260 4.6 17.0 1.0 O A:LYS258 4.7 14.1 1.0 CB A:MET257 4.7 11.2 1.0 O A:HOH417B 4.8 44.1 1.0 CA A:LYS258 4.8 16.8 1.0 CA A:THR262 4.8 10.0 1.0 O A:HOH418A 4.8 49.0 1.0 O A:LEU260 4.9 10.0 1.0 O A:HOH356A 4.9 17.6 1.0

Calcium binding site 2 out of 2 in the Annexin IV


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Annexin IV within 5.0Å range: probe atom residue distance (Å) B Occ A:Ca320 b:26.5 occ:1.00 O A:GLY30 2.3 23.5 1.0 O A:GLY28 2.3 24.6 1.0 O A:MET26 2.4 24.4 1.0 OE2 A:GLU70 2.6 27.9 1.0 O A:HOH366A 2.6 33.9 1.0 OE1 A:GLU70 2.7 22.4 1.0 O A:HOH324B 2.7 34.2 1.0 CD A:GLU70 3.0 21.3 1.0 C A:GLY30 3.5 26.7 1.0 C A:GLY28 3.5 24.1 1.0 C A:MET26 3.5 26.2 1.0 N A:GLY30 3.7 31.7 1.0 N A:GLY28 4.1 28.1 1.0 CA A:GLY30 4.1 29.1 1.0 C A:LEU29 4.2 27.7 1.0 C A:LYS27 4.2 29.1 1.0 OG1 A:THR31 4.2 24.2 1.0 CA A:MET26 4.3 24.0 1.0 CA A:GLY28 4.4 23.8 1.0 N A:LEU29 4.4 24.2 1.0 CA A:LEU29 4.5 27.1 1.0 CG A:GLU70 4.5 19.8 1.0 O A:LYS27 4.5 30.7 1.0 N A:THR31 4.5 25.7 1.0 N A:LYS27 4.5 28.0 1.0 O A:HOH368A 4.6 36.3 1.0 O A:HOH387A 4.6 45.9 1.0 CA A:LYS27 4.7 30.1 1.0 O A:HOH391A 4.7 36.2 1.0 CA A:THR31 4.8 21.9 1.0 CB A:MET26 4.8 18.7 1.0 O A:LEU29 5.0 24.8 1.0

R.B.Sutton, S.R.Sprang. Three Dimensional Structure of Annexin IV Annexins: Molecular 1996STRUCTURE to Cellularfunction.