Atomistry » Calcium » PDB 4niv-4o4h » 4nup
Atomistry »
  Calcium »
    PDB 4niv-4o4h »
      4nup »

Calcium in PDB 4nup: Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3

Protein crystallography data

The structure of Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3, PDB code: 4nup was solved by X.Jin, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 19.96 / 2.70
Space group P 21 21 2
Cell size a, b, c (Å), α, β, γ (°) 175.504, 65.791, 102.505, 90.00, 90.00, 90.00
R / Rfree (%) 17.2 / 22.9

Calcium Binding Sites:

The binding sites of Calcium atom in the Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3 (pdb code 4nup). This binding sites where shown within 5.0 Angstroms radius around Calcium atom.
In total 10 binding sites of Calcium where determined in the Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3, PDB code: 4nup:
Jump to Calcium binding site number: 1; 2; 3; 4; 5; 6; 7; 8; 9; 10;

Calcium binding site 1 out of 10 in 4nup

Go back to Calcium Binding Sites List in 4nup
Calcium binding site 1 out of 10 in the Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3


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 Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3 within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca301

b:23.2
occ:1.00
OD2 A:ASP103 2.2 15.2 1.0
OD1 A:ASP67 2.2 15.1 1.0
OE1 A:GLU69 2.3 13.5 1.0
O A:HOH437 2.4 11.6 1.0
OE1 A:GLU11 2.4 13.1 1.0
CG A:ASP103 3.1 13.8 1.0
CG A:ASP67 3.1 18.0 1.0
OD1 A:ASP103 3.4 10.6 1.0
CD A:GLU11 3.4 12.7 1.0
CD A:GLU69 3.4 12.7 1.0
OD2 A:ASP67 3.7 16.4 1.0
OE2 A:GLU11 3.8 9.2 1.0
O A:HOH512 3.9 14.9 1.0
CB A:GLU69 4.0 11.3 1.0
CG A:GLU69 4.0 15.7 1.0
CA A:CA302 4.1 9.3 1.0
O A:HOH469 4.1 13.3 1.0
ND2 A:ASN104 4.2 14.6 1.0
CB A:ASP67 4.2 14.9 1.0
N A:GLU69 4.3 13.1 1.0
CA A:ASP67 4.4 11.4 1.0
ND2 A:ASN12 4.4 15.0 1.0
O A:HOH523 4.4 18.6 1.0
N A:ARG68 4.4 14.8 1.0
OD1 A:ASN12 4.4 14.7 1.0
CB A:ASP103 4.5 8.7 1.0
OE2 A:GLU69 4.5 10.5 1.0
C A:ASP67 4.6 14.8 1.0
CG A:GLU11 4.7 10.7 1.0
CA A:GLU69 4.8 15.2 1.0
CG A:ASN12 4.8 12.9 1.0

Calcium binding site 2 out of 10 in 4nup

Go back to Calcium Binding Sites List in 4nup
Calcium binding site 2 out of 10 in the Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3


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 Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3 within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca302

b:9.3
occ:1.00
OD1 A:ASP136 2.2 15.1 1.0
OD1 A:ASP100 2.3 15.5 1.0
OD1 A:ASP103 2.3 10.6 1.0
OE2 A:GLU11 2.4 9.2 1.0
O A:MET101 2.5 9.2 1.0
OE1 A:GLU69 2.5 13.5 1.0
OE2 A:GLU69 2.6 10.5 1.0
CD A:GLU69 2.8 12.7 1.0
CG A:ASP136 3.3 11.0 1.0
CG A:ASP103 3.4 13.8 1.0
CD A:GLU11 3.4 12.7 1.0
CG A:ASP100 3.4 16.0 1.0
C A:MET101 3.7 9.2 1.0
N A:MET101 3.7 9.9 1.0
ND2 A:ASN104 3.8 14.6 1.0
OE1 A:GLU11 3.8 13.1 1.0
OD2 A:ASP103 3.8 15.2 1.0
CB A:ASP136 3.9 11.6 1.0
OD2 A:ASP100 4.1 17.1 1.0
CA A:CA301 4.1 23.2 1.0
N A:ASP103 4.1 9.0 1.0
OD2 A:ASP136 4.1 13.2 1.0
CA A:ASP136 4.2 11.9 1.0
CG A:GLU69 4.3 15.7 1.0
CA A:MET101 4.3 9.0 1.0
NE A:ARG68 4.5 14.7 1.0
C A:ASP100 4.5 11.9 1.0
CA A:ASP100 4.5 10.4 1.0
CB A:ASP100 4.6 9.6 1.0
CB A:ASP103 4.6 8.7 1.0
N A:ASN102 4.7 10.5 1.0
CG A:GLU11 4.8 10.7 1.0
CA A:ASP103 4.8 8.1 1.0
CB A:ARG68 4.9 11.1 1.0
CA A:ASN102 4.9 9.2 1.0
CB A:MET101 4.9 8.8 1.0
CG A:ASN104 5.0 14.1 1.0
N A:ASP136 5.0 15.1 1.0
N A:ASN104 5.0 10.4 1.0
C A:ASP103 5.0 9.6 1.0

Calcium binding site 3 out of 10 in 4nup

Go back to Calcium Binding Sites List in 4nup
Calcium binding site 3 out of 10 in the Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3


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 Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3 within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Ca303

b:13.0
occ:1.00
O A:ASN142 2.3 15.2 1.0
OD1 A:ASN102 2.3 12.4 1.0
O A:ASN104 2.3 12.8 1.0
OD2 A:ASP194 2.4 15.1 1.0
OD2 A:ASP136 2.4 13.2 1.0
OD2 A:ASP134 2.5 15.7 1.0
OD1 A:ASP134 2.6 14.0 1.0
CG A:ASP134 2.9 14.4 1.0
CG A:ASP194 3.4 13.1 1.0
C A:ASN142 3.4 14.5 1.0
CG A:ASN102 3.4 11.5 1.0
CG A:ASP136 3.5 11.0 1.0
C A:ASN104 3.5 11.4 1.0
CB A:ASP194 3.8 9.7 1.0
CB A:ASP136 3.9 11.6 1.0
ND2 A:ASN102 4.0 11.6 1.0
CA A:ASN142 4.2 12.4 1.0
CA A:ASN104 4.2 11.0 1.0
N A:ASN104 4.2 10.4 1.0
CB A:ASP134 4.3 11.4 1.0
CB A:ASN104 4.4 15.3 1.0
CB A:ASN142 4.4 12.4 1.0
N A:GLY143 4.4 10.9 1.0
OD1 A:ASP194 4.4 12.8 1.0
OD1 A:ASP136 4.6 15.1 1.0
N A:ARG105 4.6 10.0 1.0
CA A:GLY143 4.6 10.9 1.0
CB A:ASN102 4.7 7.2 1.0
CD1 A:LEU203 4.7 11.6 1.0
CA A:ASN102 4.7 9.2 1.0
CA A:ARG105 4.9 11.8 1.0
CD A:PRO106 4.9 17.0 1.0
C A:ARG105 5.0 15.4 1.0
N A:ASP136 5.0 15.1 1.0

Calcium binding site 4 out of 10 in 4nup

Go back to Calcium Binding Sites List in 4nup
Calcium binding site 4 out of 10 in the Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3


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 Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3 within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Ca301

b:18.0
occ:1.00
OE1 B:GLU69 2.2 10.6 1.0
O B:HOH415 2.3 12.2 1.0
OD2 B:ASP103 2.4 13.7 1.0
OE1 B:GLU11 2.4 12.5 1.0
OD1 B:ASP67 2.4 17.1 1.0
O B:HOH408 2.4 10.2 1.0
CD B:GLU11 3.2 11.6 1.0
CG B:ASP103 3.2 11.1 1.0
CG B:ASP67 3.3 18.1 1.0
OD1 B:ASP103 3.3 8.6 1.0
CD B:GLU69 3.5 12.5 1.0
OE2 B:GLU11 3.5 7.9 1.0
CA B:CA302 3.8 9.7 1.0
OD2 B:ASP67 3.9 25.5 1.0
N B:ARG68 4.2 9.9 1.0
CA B:ASP67 4.2 7.8 1.0
OD1 B:ASN12 4.2 13.6 1.0
ND2 B:ASN12 4.2 10.1 1.0
CB B:ASP67 4.3 7.4 1.0
CG B:GLU69 4.3 8.7 1.0
N B:GLU69 4.3 15.5 1.0
CB B:GLU69 4.3 11.8 1.0
CG B:GLU11 4.4 8.4 1.0
OE2 B:GLU69 4.4 13.8 1.0
OD1 B:ASN104 4.5 10.1 1.0
O B:HOH418 4.5 8.8 1.0
O B:HOH577 4.5 19.6 1.0
C B:ASP67 4.5 11.7 1.0
CB B:ASP103 4.6 9.2 1.0
CG B:ASN12 4.7 10.5 1.0
CB B:GLU11 4.9 8.9 1.0
CA B:GLU69 5.0 15.5 1.0

Calcium binding site 5 out of 10 in 4nup

Go back to Calcium Binding Sites List in 4nup
Calcium binding site 5 out of 10 in the Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 5 of Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3 within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Ca302

b:9.7
occ:1.00
OD1 B:ASP100 2.3 13.2 1.0
OD1 B:ASP103 2.4 8.6 1.0
OE2 B:GLU11 2.4 7.9 1.0
OD1 B:ASP136 2.4 10.7 1.0
O B:MET101 2.4 10.6 1.0
OE1 B:GLU69 2.7 10.6 1.0
OE2 B:GLU69 2.7 13.8 1.0
CD B:GLU69 3.0 12.5 1.0
CG B:ASP100 3.4 12.4 1.0
CD B:GLU11 3.4 11.6 1.0
CG B:ASP103 3.4 11.1 1.0
CG B:ASP136 3.5 12.5 1.0
C B:MET101 3.6 9.7 1.0
N B:MET101 3.7 8.3 1.0
OE1 B:GLU11 3.8 12.5 1.0
CA B:CA301 3.8 18.0 1.0
OD2 B:ASP103 3.9 13.7 1.0
OD2 B:ASP100 4.0 12.8 1.0
OD1 B:ASN104 4.1 10.1 1.0
CB B:ASP136 4.1 9.5 1.0
N B:ASP103 4.2 7.9 1.0
CA B:MET101 4.2 7.2 1.0
CA B:ASP136 4.3 8.8 1.0
NE B:ARG68 4.4 12.8 1.0
CG B:GLU69 4.4 8.7 1.0
OD2 B:ASP136 4.4 9.9 1.0
CA B:ASP100 4.5 9.8 1.0
C B:ASP100 4.5 8.7 1.0
CB B:ASP100 4.5 10.2 1.0
N B:ASN102 4.7 10.0 1.0
CB B:ASP103 4.7 9.2 1.0
CG B:GLU11 4.8 8.4 1.0
CB B:MET101 4.8 7.0 1.0
O B:HOH408 4.8 10.2 1.0
CB B:ARG68 4.8 10.8 1.0
CA B:ASP103 4.9 9.6 1.0
CA B:ASN102 4.9 8.3 1.0

Calcium binding site 6 out of 10 in 4nup

Go back to Calcium Binding Sites List in 4nup
Calcium binding site 6 out of 10 in the Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 6 of Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3 within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Ca303

b:8.3
occ:1.00
OD1 B:ASN102 2.3 8.7 1.0
OD2 B:ASP136 2.3 9.9 1.0
O B:ASN104 2.3 14.4 1.0
O B:ASN142 2.4 9.7 1.0
OD2 B:ASP134 2.4 12.1 1.0
OD2 B:ASP194 2.5 10.0 1.0
OD1 B:ASP134 2.5 9.8 1.0
CG B:ASP134 2.7 12.0 1.0
CG B:ASP136 3.3 12.5 1.0
CG B:ASN102 3.5 9.9 1.0
CG B:ASP194 3.5 10.1 1.0
C B:ASN142 3.5 10.8 1.0
C B:ASN104 3.5 9.6 1.0
CB B:ASP136 3.7 9.5 1.0
CB B:ASP194 3.9 8.8 1.0
ND2 B:ASN102 4.1 7.6 1.0
CA B:ASN104 4.2 7.2 1.0
N B:ASN104 4.2 8.9 1.0
CB B:ASP134 4.2 9.9 1.0
CA B:ASN142 4.3 10.9 1.0
CB B:ASN104 4.4 8.6 1.0
OD1 B:ASP136 4.5 10.7 1.0
N B:GLY143 4.5 8.5 1.0
OD1 B:ASP194 4.5 9.0 1.0
N B:ARG105 4.5 11.1 1.0
CB B:ASN142 4.5 9.1 1.0
CA B:GLY143 4.6 7.8 1.0
CB B:ASN102 4.7 6.7 1.0
CA B:ASN102 4.7 8.3 1.0
CA B:ARG105 4.8 10.7 1.0
CD1 B:LEU203 4.8 7.5 1.0
N B:ASP136 4.8 7.4 1.0
CA B:ASP136 4.9 8.8 1.0
CD B:PRO106 4.9 14.5 1.0
C B:ARG105 4.9 16.2 1.0
C B:ASN102 5.0 8.2 1.0

Calcium binding site 7 out of 10 in 4nup

Go back to Calcium Binding Sites List in 4nup
Calcium binding site 7 out of 10 in the Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 7 of Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3 within 5.0Å range:
probe atom residue distance (Å) B Occ
C:Ca301

b:32.9
occ:1.00
OD1 C:ASP67 2.2 23.6 1.0
OD2 C:ASP103 2.2 17.4 1.0
OE1 C:GLU69 2.4 20.3 1.0
OE1 C:GLU11 2.4 16.9 1.0
CG C:ASP67 3.1 29.4 1.0
CG C:ASP103 3.2 16.6 1.0
O C:HOH482 3.3 22.8 1.0
CD C:GLU11 3.3 18.0 1.0
OD1 C:ASP103 3.6 16.6 1.0
CD C:GLU69 3.6 17.3 1.0
OD2 C:ASP67 3.7 33.2 1.0
OE2 C:GLU11 3.7 14.6 1.0
OD1 C:ASN12 4.0 19.6 1.0
O C:HOH559 4.0 34.9 1.0
CB C:ASP67 4.1 26.4 1.0
CA C:ASP67 4.2 17.2 1.0
CA C:CA302 4.2 13.8 1.0
N C:ARG68 4.3 19.4 1.0
CG C:GLU69 4.3 15.3 1.0
CB C:GLU69 4.3 20.8 1.0
ND2 C:ASN104 4.4 17.2 1.0
ND2 C:ASN12 4.4 12.4 1.0
N C:GLU69 4.4 21.6 1.0
CG C:GLU11 4.4 11.7 1.0
CB C:ASP103 4.5 19.6 1.0
C C:ASP67 4.5 21.3 1.0
OE2 C:GLU69 4.5 13.2 1.0
CG C:ASN12 4.6 14.7 1.0
CB C:GLU11 4.9 12.6 1.0

Calcium binding site 8 out of 10 in 4nup

Go back to Calcium Binding Sites List in 4nup
Calcium binding site 8 out of 10 in the Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 8 of Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3 within 5.0Å range:
probe atom residue distance (Å) B Occ
C:Ca302

b:13.8
occ:1.00
OD1 C:ASP103 2.3 16.6 1.0
OD1 C:ASP100 2.3 19.5 1.0
O C:MET101 2.3 18.4 1.0
OE2 C:GLU11 2.4 14.6 1.0
OE2 C:GLU69 2.5 13.2 1.0
OD1 C:ASP136 2.6 20.8 1.0
OE1 C:GLU69 2.7 20.3 1.0
CD C:GLU69 2.9 17.3 1.0
CG C:ASP103 3.3 16.6 1.0
CG C:ASP100 3.4 16.4 1.0
CD C:GLU11 3.4 18.0 1.0
CG C:ASP136 3.5 19.2 1.0
C C:MET101 3.5 19.7 1.0
N C:MET101 3.7 19.1 1.0
OD2 C:ASP103 3.7 17.4 1.0
OE1 C:GLU11 3.8 16.9 1.0
OD2 C:ASP100 3.9 18.5 1.0
ND2 C:ASN104 4.0 17.2 1.0
CB C:ASP136 4.0 17.6 1.0
N C:ASP103 4.1 16.5 1.0
CA C:MET101 4.1 18.6 1.0
CA C:CA301 4.2 32.9 1.0
CG C:GLU69 4.3 15.3 1.0
OD2 C:ASP136 4.3 19.9 1.0
CA C:ASP136 4.3 18.3 1.0
NE C:ARG68 4.4 23.7 1.0
C C:ASP100 4.5 21.2 1.0
CB C:ASP103 4.5 19.6 1.0
CA C:ASP100 4.6 15.5 1.0
CB C:ASP100 4.6 15.4 1.0
N C:ASN102 4.6 21.6 1.0
CB C:ARG68 4.7 15.0 1.0
CB C:MET101 4.7 18.3 1.0
CG C:GLU11 4.8 11.7 1.0
CA C:ASP103 4.8 19.7 1.0
CA C:ASN102 4.8 15.1 1.0
C C:ASN102 5.0 18.7 1.0

Calcium binding site 9 out of 10 in 4nup

Go back to Calcium Binding Sites List in 4nup
Calcium binding site 9 out of 10 in the Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 9 of Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3 within 5.0Å range:
probe atom residue distance (Å) B Occ
C:Ca303

b:14.4
occ:1.00
O C:ASN104 2.3 15.2 1.0
OD2 C:ASP136 2.3 19.9 1.0
OD2 C:ASP134 2.4 20.4 1.0
O C:ASN142 2.4 21.1 1.0
OD1 C:ASN102 2.4 19.4 1.0
OD1 C:ASP134 2.5 18.5 1.0
OD2 C:ASP194 2.5 14.3 1.0
CG C:ASP134 2.8 18.6 1.0
CG C:ASP136 3.4 19.2 1.0
CG C:ASP194 3.5 15.0 1.0
C C:ASN104 3.5 17.5 1.0
C C:ASN142 3.5 22.6 1.0
CG C:ASN102 3.5 20.9 1.0
CB C:ASP194 3.8 15.1 1.0
CB C:ASP136 3.8 17.6 1.0
ND2 C:ASN102 4.2 19.0 1.0
CA C:ASN104 4.2 18.9 1.0
CA C:ASN142 4.3 21.3 1.0
N C:ASN104 4.3 19.5 1.0
CB C:ASP134 4.3 16.9 1.0
CB C:ASN104 4.4 17.6 1.0
OD1 C:ASP136 4.5 20.8 1.0
OD1 C:ASP194 4.5 14.6 1.0
N C:ARG105 4.5 22.0 1.0
CB C:ASN142 4.5 20.8 1.0
N C:GLY143 4.6 16.8 1.0
CD1 C:LEU203 4.7 12.8 1.0
CA C:GLY143 4.7 22.3 1.0
CB C:ASN102 4.7 16.4 1.0
CA C:ASN102 4.8 15.1 1.0
CA C:ARG105 4.8 18.6 1.0
CD C:PRO106 4.9 16.1 1.0
N C:ASP136 4.9 15.2 1.0
C C:ARG105 4.9 15.4 1.0

Calcium binding site 10 out of 10 in 4nup

Go back to Calcium Binding Sites List in 4nup
Calcium binding site 10 out of 10 in the Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3


Mono view


Stereo pair view

A full contact list of Calcium with other atoms in the Ca binding site number 10 of Crystal Structure of Mouse N-Cadherin EC1-2 with Aa Insertion Between Residues 2 and 3 within 5.0Å range:
probe atom residue distance (Å) B Occ
C:Ca304

b:34.1
occ:1.00
OE1 C:GLU119 2.3 15.5 1.0
O C:HOH506 2.3 25.7 1.0
OD1 C:ASP215 2.5 25.0 1.0
O C:HOH459 2.5 26.1 1.0
CD C:GLU119 3.3 18.0 1.0
O C:HOH537 3.5 14.9 1.0
CG C:ASP215 3.5 24.8 1.0
OE2 C:GLU119 3.7 19.2 1.0
OD2 C:ASP215 3.9 29.7 1.0
O C:HOH512 4.2 14.2 1.0
O C:HOH457 4.4 22.6 1.0
CG C:GLU119 4.7 18.2 1.0
CB C:ASP215 4.9 14.7 1.0
O C:ASP215 4.9 16.3 1.0

Reference:

J.Vendome, K.Felsovalyi, H.Song, Z.Yang, X.Jin, J.Brasch, O.J.Harrison, G.Ahlsen, F.Bahna, A.Kaczynska, P.S.Katsamba, D.Edmond, W.L.Hubbell, L.Shapiro, B.Honig. Structural and Energetic Determinants of Adhesive Binding Specificity in Type I Cadherins. Proc.Natl.Acad.Sci.Usa V. 111 E4175 2014.
ISSN: ISSN 0027-8424
PubMed: 25253890
DOI: 10.1073/PNAS.1416737111
Page generated: Sun Jul 14 11:10:02 2024

Last articles

Zn in 9JPJ
Zn in 9JP7
Zn in 9JPK
Zn in 9JPL
Zn in 9GN6
Zn in 9GN7
Zn in 9GKU
Zn in 9GKW
Zn in 9GKX
Zn in 9GL0
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy