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Calcium in PDB 2nxq: Crystal Structure of Calcium Binding Protein 1 From Entamoeba Histolytica: A Novel Arrangement of Ef Hand Motifs

Protein crystallography data

The structure of Crystal Structure of Calcium Binding Protein 1 From Entamoeba Histolytica: A Novel Arrangement of Ef Hand Motifs, PDB code: 2nxq was solved by S.Kumar, N.Padhan, N.Alam, S.Gourinath, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 50.00 / 2.40
Space group P 63
Cell size a, b, c (Å), α, β, γ (°) 95.250, 95.250, 64.996, 90.00, 90.00, 120.00
R / Rfree (%) 25.8 / 28.2

Calcium Binding Sites:

The binding sites of Calcium atom in the Crystal Structure of Calcium Binding Protein 1 From Entamoeba Histolytica: A Novel Arrangement of Ef Hand Motifs (pdb code 2nxq). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 4 binding sites of Calcium where determined in the Crystal Structure of Calcium Binding Protein 1 From Entamoeba Histolytica: A Novel Arrangement of Ef Hand Motifs, PDB code: 2nxq:
Jump to Calcium binding site number: 1; 2; 3; 4;

Calcium binding site 1 out of 4 in 2nxq

Go back to Calcium Binding Sites List in 2nxq
Calcium binding site 1 out of 4 in the Crystal Structure of Calcium Binding Protein 1 From Entamoeba Histolytica: A Novel Arrangement of Ef Hand Motifs


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 1 of Crystal Structure of Calcium Binding Protein 1 From Entamoeba Histolytica: A Novel Arrangement of Ef Hand Motifs within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca149

b:65.1
occ:1.00
O A:ALA16 2.4 55.2 1.0
OD1 A:ASN12 2.5 60.9 1.0
OD1 A:ASP10 2.5 54.6 1.0
OE1 A:GLU21 2.7 58.5 1.0
O A:HOH215 2.8 68.3 1.0
OD1 A:ASP14 2.9 61.5 1.0
OE2 A:GLU21 2.9 59.5 1.0
CD A:GLU21 3.2 58.9 1.0
CG A:ASP14 3.3 62.2 1.0
OD2 A:ASP14 3.5 62.2 1.0
CG A:ASN12 3.5 59.8 1.0
C A:ALA16 3.6 56.4 1.0
CG A:ASP10 3.7 55.8 1.0
ND2 A:ASN12 4.1 60.2 1.0
N A:ASP14 4.1 59.6 1.0
N A:ALA16 4.3 56.2 1.0
CA A:ASP10 4.4 56.6 1.0
N A:ASN12 4.4 60.6 1.0
CA A:ALA16 4.5 56.7 1.0
CB A:ASP10 4.5 55.7 1.0
OD2 A:ASP10 4.5 54.8 1.0
CB A:ASP14 4.5 58.4 1.0
N A:VAL17 4.6 54.7 1.0
CA A:VAL17 4.6 52.7 1.0
C A:ASP10 4.6 57.4 1.0
CG A:GLU21 4.6 58.2 1.0
N A:GLY13 4.6 60.0 1.0
N A:SER18 4.7 48.4 1.0
CB A:ASN12 4.7 58.2 1.0
CA A:ASP14 4.7 57.5 1.0
N A:VAL11 4.7 58.6 1.0
CA A:ASN12 4.9 59.2 1.0
C A:ASN12 4.9 59.4 1.0
CB A:ALA16 4.9 56.8 1.0
N A:GLY15 4.9 56.1 1.0
C A:ASP14 5.0 56.6 1.0

Calcium binding site 2 out of 4 in 2nxq

Go back to Calcium Binding Sites List in 2nxq
Calcium binding site 2 out of 4 in the Crystal Structure of Calcium Binding Protein 1 From Entamoeba Histolytica: A Novel Arrangement of Ef Hand Motifs


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 2 of Crystal Structure of Calcium Binding Protein 1 From Entamoeba Histolytica: A Novel Arrangement of Ef Hand Motifs within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca150

b:64.6
occ:1.00
OE2 A:GLU57 2.4 55.6 1.0
OD1 A:ASN50 2.5 70.6 1.0
O A:GLU52 2.6 67.8 1.0
OD1 A:ASP46 2.6 65.8 1.0
OE1 A:GLU57 2.7 57.7 1.0
OD1 A:ASP48 2.8 83.1 1.0
CD A:GLU57 2.9 58.7 1.0
O A:HOH216 3.0 79.5 1.0
CG A:ASN50 3.2 71.8 1.0
OD2 A:ASP48 3.2 82.4 1.0
CG A:ASP48 3.2 82.2 1.0
CG A:ASP46 3.4 65.2 1.0
ND2 A:ASN50 3.5 69.8 1.0
C A:GLU52 3.8 68.3 1.0
OD2 A:ASP46 4.0 63.2 1.0
N A:ASN50 4.1 71.6 1.0
CG A:GLU52 4.2 76.9 1.0
N A:ASP48 4.2 76.1 1.0
CA A:ASP46 4.3 65.9 1.0
N A:GLU52 4.3 70.0 1.0
CB A:ASP46 4.3 64.8 1.0
CB A:ASN50 4.3 71.3 1.0
OD2 A:ASP54 4.4 65.1 1.0
CG A:GLU57 4.4 57.9 1.0
C A:ASP46 4.5 68.4 1.0
CB A:ASP48 4.5 79.1 1.0
N A:GLY49 4.5 74.7 1.0
CA A:ILE53 4.6 65.0 1.0
N A:ILE53 4.6 66.1 1.0
CA A:GLU52 4.7 70.2 1.0
CA A:ASP48 4.7 76.9 1.0
CA A:ASN50 4.7 71.6 1.0
N A:GLY51 4.7 70.2 1.0
N A:ASP54 4.8 66.4 1.0
C A:ASP48 4.8 76.5 1.0
N A:ALA47 4.8 70.9 1.0
O A:ASP46 4.8 68.8 1.0

Calcium binding site 3 out of 4 in 2nxq

Go back to Calcium Binding Sites List in 2nxq
Calcium binding site 3 out of 4 in the Crystal Structure of Calcium Binding Protein 1 From Entamoeba Histolytica: A Novel Arrangement of Ef Hand Motifs


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 3 of Crystal Structure of Calcium Binding Protein 1 From Entamoeba Histolytica: A Novel Arrangement of Ef Hand Motifs within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Ca151

b:62.4
occ:1.00
O B:ALA16 2.4 55.1 1.0
OD1 B:ASN12 2.5 60.2 1.0
OD1 B:ASP10 2.6 53.7 1.0
OE2 B:GLU21 2.7 59.5 1.0
OE1 B:GLU21 2.7 58.5 1.0
O B:HOH222 2.7 65.4 1.0
OD1 B:ASP14 2.8 60.9 1.0
CD B:GLU21 3.1 58.5 1.0
CG B:ASP14 3.4 61.3 1.0
CG B:ASN12 3.5 58.8 1.0
OD2 B:ASP14 3.6 60.9 1.0
C B:ALA16 3.6 55.8 1.0
CG B:ASP10 3.7 55.9 1.0
ND2 B:ASN12 4.0 59.2 1.0
N B:ASP14 4.3 58.4 1.0
N B:ALA16 4.3 54.9 1.0
CA B:ASP10 4.4 56.4 1.0
N B:ASN12 4.4 59.4 1.0
CA B:ALA16 4.5 56.4 1.0
CB B:ASP10 4.5 55.8 1.0
N B:SER18 4.5 50.4 1.0
CA B:VAL17 4.5 53.2 1.0
N B:VAL17 4.5 54.7 1.0
CG B:GLU21 4.5 57.5 1.0
OD2 B:ASP10 4.5 54.8 1.0
C B:ASP10 4.6 56.9 1.0
CB B:ASP14 4.6 57.9 1.0
N B:GLY13 4.6 59.4 1.0
CB B:ASN12 4.7 57.7 1.0
N B:VAL11 4.8 57.7 1.0
CB B:ALA16 4.9 55.1 1.0
O B:HOH207 4.9 58.5 1.0
CA B:ASP14 4.9 56.7 1.0
CA B:ASN12 4.9 58.3 1.0
C B:ASN12 4.9 58.8 1.0
C B:VAL17 5.0 51.4 1.0

Calcium binding site 4 out of 4 in 2nxq

Go back to Calcium Binding Sites List in 2nxq
Calcium binding site 4 out of 4 in the Crystal Structure of Calcium Binding Protein 1 From Entamoeba Histolytica: A Novel Arrangement of Ef Hand Motifs


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 4 of Crystal Structure of Calcium Binding Protein 1 From Entamoeba Histolytica: A Novel Arrangement of Ef Hand Motifs within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Ca152

b:66.6
occ:1.00
OE2 B:GLU57 2.4 59.3 1.0
OD1 B:ASP46 2.5 69.3 1.0
O B:GLU52 2.5 68.1 1.0
OD1 B:ASN50 2.6 73.5 1.0
OE1 B:GLU57 2.7 62.8 1.0
OD1 B:ASP48 2.8 81.9 1.0
CD B:GLU57 2.9 60.9 1.0
O B:HOH223 3.0 71.2 1.0
OD2 B:ASP48 3.1 82.6 1.0
CG B:ASP48 3.1 82.2 1.0
CG B:ASN50 3.3 73.2 1.0
CG B:ASP46 3.5 68.8 1.0
C B:GLU52 3.7 68.4 1.0
ND2 B:ASN50 3.8 73.4 1.0
N B:ASN50 4.0 72.3 1.0
OD2 B:ASP46 4.1 68.6 1.0
CG B:GLU52 4.2 76.2 1.0
OD2 B:ASP54 4.2 64.5 1.0
CB B:ASN50 4.3 72.3 1.0
N B:GLU52 4.3 68.0 1.0
N B:ASP48 4.3 76.4 1.0
CB B:ASP48 4.3 79.5 1.0
CA B:ILE53 4.3 66.1 1.0
CA B:ASP46 4.4 67.8 1.0
CB B:ASP46 4.4 67.4 1.0
CG B:GLU57 4.4 58.2 1.0
N B:GLY49 4.4 75.0 1.0
C B:ASP46 4.5 70.0 1.0
N B:ILE53 4.5 67.2 1.0
CA B:ASN50 4.6 72.1 1.0
CA B:ASP48 4.6 77.5 1.0
C B:ASP48 4.6 77.2 1.0
CA B:GLU52 4.6 69.3 1.0
N B:GLY51 4.7 70.3 1.0
N B:ASP54 4.7 66.5 1.0
O B:ASP46 4.7 70.2 1.0
C B:ASN50 4.9 71.5 1.0
N B:ALA47 5.0 71.5 1.0
C B:GLY49 5.0 72.8 1.0

Reference:

S.Kumar, N.Padhan, N.Alam, S.Gourinath. Crystal Structure of Calcium Binding Protein-1 From Entamoeba Histolytica: A Novel Arrangement of Ef Hand Motifs. Proteins V. 68 990 2007.
ISSN: ISSN 0887-3585
PubMed: 17554780
DOI: 10.1002/PROT.21455
Page generated: Tue Jul 8 07:13:47 2025

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