Atomistry » Magnesium » PDB 6bcy-6br1 » 6bo7
Atomistry »
  Magnesium »
    PDB 6bcy-6br1 »
      6bo7 »

Magnesium in PDB 6bo7: Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine

Enzymatic activity of Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine

All present enzymatic activity of Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine:
2.4.2.8;

Protein crystallography data

The structure of Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine, PDB code: 6bo7 was solved by L.W.Guddat, D.T.Keough, D.Rejman, with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:

Resolution Low / High (Å) 39.17 / 2.86
Space group P 2 21 21
Cell size a, b, c (Å), α, β, γ (°) 55.784, 219.854, 254.139, 90.00, 90.00, 90.00
R / Rfree (%) 23 / 25.6

Magnesium Binding Sites:

Pages:

>>> Page 1 <<< Page 2, Binding sites: 11 - 20; Page 3, Binding sites: 21 - 27;

Binding sites:

The binding sites of Magnesium atom in the Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine (pdb code 6bo7). This binding sites where shown within 5.0 Angstroms radius around Magnesium atom.
In total 27 binding sites of Magnesium where determined in the Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine, PDB code: 6bo7:
Jump to Magnesium binding site number: 1; 2; 3; 4; 5; 6; 7; 8; 9; 10;

Magnesium binding site 1 out of 27 in 6bo7

Go back to Magnesium Binding Sites List in 6bo7
Magnesium binding site 1 out of 27 in the Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 1 of Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Mg301

b:59.0
occ:1.00
OE1 A:GLU144 2.8 63.3 1.0
OE2 A:GLU144 2.9 64.7 1.0
OD1 A:ASP145 2.9 50.1 1.0
CD A:GLU144 3.1 64.1 1.0
OAH A:YPG303 3.6 51.7 1.0
CG A:ASP145 3.8 48.4 1.0
OAT A:YPG303 4.0 46.1 1.0
OD2 A:ASP145 4.1 49.1 1.0
OAF A:YPG303 4.3 56.4 1.0
CG A:GLU144 4.4 62.0 1.0
CAO A:YPG303 4.5 49.4 1.0
CAL A:YPG303 4.7 44.1 1.0
O A:ILE146 4.8 44.3 1.0
CBA A:YPG303 4.8 47.4 1.0
O A:LEU75 4.9 43.6 1.0
N A:ASP145 5.0 46.6 1.0
OG A:SER79 5.0 45.3 1.0
CAN A:YPG303 5.0 49.1 1.0

Magnesium binding site 2 out of 27 in 6bo7

Go back to Magnesium Binding Sites List in 6bo7
Magnesium binding site 2 out of 27 in the Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 2 of Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine within 5.0Å range:
probe atom residue distance (Å) B Occ
A:Mg302

b:65.2
occ:1.00
OAB A:YPG303 1.9 49.9 1.0
OD1 A:ASP204 2.2 48.1 1.0
CG A:ASP204 3.0 47.0 1.0
OAD A:YPG303 3.0 49.4 1.0
CAU A:YPG303 3.0 48.2 1.0
OD2 A:ASP204 3.2 46.7 1.0
CAP A:YPG303 3.6 47.0 1.0
O A:ASP204 3.6 42.3 1.0
NBC A:YPG303 3.7 48.0 1.0
PBE A:YPG303 4.2 51.3 1.0
CAL A:YPG303 4.2 44.1 1.0
C A:ASP204 4.2 43.2 1.0
CAM A:YPG303 4.3 52.8 1.0
CB A:ASP204 4.3 43.4 1.0
N3 A:YPG303 4.5 39.6 1.0
N A:ASP204 4.6 44.3 1.0
CA A:ASP204 4.6 41.5 1.0
NH2 A:ARG210 4.6 48.6 1.0
CBB A:YPG303 4.8 44.6 1.0
N2 A:YPG303 4.9 38.8 1.0

Magnesium binding site 3 out of 27 in 6bo7

Go back to Magnesium Binding Sites List in 6bo7
Magnesium binding site 3 out of 27 in the Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 3 of Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Mg301

b:65.4
occ:1.00
OD1 B:ASP145 2.4 56.9 1.0
OE1 B:GLU144 2.7 64.4 1.0
OE2 B:GLU144 2.9 66.9 1.0
CD B:GLU144 3.0 64.4 1.0
CG B:ASP145 3.3 55.3 1.0
OD2 B:ASP145 3.6 59.1 1.0
OAH B:YPG303 3.9 48.7 1.0
OAT B:YPG303 4.0 50.8 1.0
CG B:GLU144 4.2 57.4 1.0
O B:ILE146 4.2 37.2 1.0
OAF B:YPG303 4.5 41.3 1.0
OG B:SER79 4.5 37.4 1.0
CG2 B:ILE146 4.5 36.1 1.0
N B:ASP145 4.6 43.9 1.0
N B:ILE146 4.6 31.8 1.0
CAO B:YPG303 4.7 48.5 1.0
CB B:ASP145 4.7 49.0 1.0
CBA B:YPG303 4.9 49.0 1.0
CAN B:YPG303 4.9 49.7 1.0

Magnesium binding site 4 out of 27 in 6bo7

Go back to Magnesium Binding Sites List in 6bo7
Magnesium binding site 4 out of 27 in the Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 4 of Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine within 5.0Å range:
probe atom residue distance (Å) B Occ
B:Mg302

b:51.5
occ:1.00
OD1 B:ASP204 2.0 54.1 1.0
OAB B:YPG303 2.0 48.5 1.0
OAD B:YPG303 2.2 49.5 1.0
CG B:ASP204 2.7 52.7 1.0
OD2 B:ASP204 2.8 55.6 1.0
CAU B:YPG303 3.1 42.4 1.0
PBE B:YPG303 3.4 50.6 1.0
CAM B:YPG303 3.6 45.1 1.0
NH2 B:ARG210 3.8 52.2 1.0
CAL B:YPG303 3.9 43.1 1.0
NBC B:YPG303 4.1 41.5 1.0
CB B:ASP204 4.2 47.8 1.0
OAG B:YPG303 4.2 49.9 1.0
CAP B:YPG303 4.3 40.9 1.0
O B:ASP204 4.4 50.4 1.0
OAH B:YPG303 4.5 48.7 1.0
N B:ASP204 4.7 45.0 1.0
CZ B:ARG210 4.7 49.0 1.0
C B:ASP204 4.8 49.6 1.0
CA B:ASP204 4.8 46.4 1.0
NH1 B:ARG210 4.9 45.1 1.0

Magnesium binding site 5 out of 27 in 6bo7

Go back to Magnesium Binding Sites List in 6bo7
Magnesium binding site 5 out of 27 in the Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 5 of Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine within 5.0Å range:
probe atom residue distance (Å) B Occ
C:Mg301

b:61.5
occ:1.00
OD1 C:ASP145 2.5 71.9 1.0
OE2 C:GLU144 3.0 67.1 1.0
OE1 C:GLU144 3.1 69.4 1.0
CD C:GLU144 3.2 68.8 1.0
CG C:ASP145 3.4 68.5 1.0
OAT C:YPG303 3.5 53.6 1.0
OD2 C:ASP145 3.6 66.5 1.0
OAH C:YPG303 3.8 51.4 1.0
OAF C:YPG303 4.1 50.2 1.0
O C:ILE146 4.3 51.2 1.0
CG C:GLU144 4.4 66.9 1.0
CAO C:YPG303 4.4 53.2 1.0
CG2 C:ILE146 4.5 47.7 1.0
CBA C:YPG303 4.5 51.9 1.0
CAN C:YPG303 4.5 56.1 1.0
N C:ILE146 4.6 45.6 1.0
CAZ C:YPG303 4.7 52.7 1.0
N C:ASP145 4.8 63.9 1.0
CBB C:YPG303 4.8 59.4 1.0
CB C:ASP145 4.8 64.7 1.0
OG C:SER79 4.9 40.9 1.0
NBC C:YPG303 4.9 50.6 1.0
CAL C:YPG303 5.0 50.4 1.0

Magnesium binding site 6 out of 27 in 6bo7

Go back to Magnesium Binding Sites List in 6bo7
Magnesium binding site 6 out of 27 in the Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 6 of Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine within 5.0Å range:
probe atom residue distance (Å) B Occ
C:Mg302

b:60.4
occ:1.00
OD1 C:ASP204 2.0 63.1 1.0
OAB C:YPG303 2.0 50.6 1.0
OAD C:YPG303 2.4 48.6 1.0
OD2 C:ASP204 2.7 61.6 1.0
CG C:ASP204 2.7 61.4 1.0
CAU C:YPG303 3.1 50.5 1.0
PBE C:YPG303 3.5 54.0 1.0
CAM C:YPG303 3.6 50.1 1.0
NH2 C:ARG210 3.8 54.0 1.0
CAL C:YPG303 4.0 50.4 1.0
CB C:ASP204 4.1 57.3 1.0
NBC C:YPG303 4.2 50.6 1.0
OAG C:YPG303 4.3 48.4 1.0
O C:ASP204 4.3 62.7 1.0
CAP C:YPG303 4.4 50.8 1.0
C C:ASP204 4.7 62.5 1.0
OAH C:YPG303 4.7 51.4 1.0
CZ C:ARG210 4.7 49.5 1.0
N C:ASP204 4.7 59.9 1.0
CA C:ASP204 4.7 59.6 1.0

Magnesium binding site 7 out of 27 in 6bo7

Go back to Magnesium Binding Sites List in 6bo7
Magnesium binding site 7 out of 27 in the Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 7 of Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine within 5.0Å range:
probe atom residue distance (Å) B Occ
D:Mg301

b:62.9
occ:1.00
OD1 D:ASP145 2.4 77.7 1.0
OE1 D:GLU144 2.8 51.4 1.0
OE2 D:GLU144 2.9 49.6 1.0
CD D:GLU144 3.0 48.3 1.0
CG D:ASP145 3.3 77.6 1.0
OD2 D:ASP145 3.5 80.7 1.0
OAH D:YPG303 3.7 59.1 1.0
OAT D:YPG303 3.8 52.7 1.0
CG D:GLU144 4.2 43.2 1.0
CAO D:YPG303 4.3 47.0 1.0
OAF D:YPG303 4.4 55.9 1.0
O D:ILE146 4.6 61.2 1.0
CBA D:YPG303 4.6 50.4 1.0
N D:ASP145 4.6 65.5 1.0
CB D:ASP145 4.7 72.3 1.0
OG D:SER79 4.7 46.8 1.0
CAN D:YPG303 4.8 51.7 1.0
CG2 D:ILE146 4.8 63.6 1.0
N D:ILE146 4.8 62.6 1.0
CAL D:YPG303 4.9 52.4 1.0
CAZ D:YPG303 5.0 53.8 1.0
CBB D:YPG303 5.0 54.4 1.0

Magnesium binding site 8 out of 27 in 6bo7

Go back to Magnesium Binding Sites List in 6bo7
Magnesium binding site 8 out of 27 in the Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 8 of Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine within 5.0Å range:
probe atom residue distance (Å) B Occ
D:Mg302

b:52.2
occ:1.00
OAB D:YPG303 2.0 67.6 1.0
OD1 D:ASP204 2.0 51.8 1.0
OAD D:YPG303 2.2 51.7 1.0
CG D:ASP204 2.7 49.1 1.0
OD2 D:ASP204 2.7 47.3 1.0
CAU D:YPG303 3.1 58.1 1.0
PBE D:YPG303 3.2 56.1 1.0
CAM D:YPG303 3.4 47.7 1.0
NH2 D:ARG210 3.4 46.5 1.0
CAL D:YPG303 3.8 52.4 1.0
OAG D:YPG303 3.9 56.4 1.0
CB D:ASP204 4.1 46.0 1.0
NBC D:YPG303 4.1 51.2 1.0
CZ D:ARG210 4.4 47.2 1.0
CAP D:YPG303 4.4 50.4 1.0
OAH D:YPG303 4.4 59.1 1.0
O D:ASP204 4.6 44.1 1.0
NH1 D:ARG210 4.8 44.0 1.0
N D:ASP204 4.8 39.7 1.0
CA D:ASP204 4.9 42.8 1.0
C D:ASP204 4.9 43.0 1.0

Magnesium binding site 9 out of 27 in 6bo7

Go back to Magnesium Binding Sites List in 6bo7
Magnesium binding site 9 out of 27 in the Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 9 of Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine within 5.0Å range:
probe atom residue distance (Å) B Occ
E:Mg301

b:55.0
occ:1.00
OD1 E:ASP145 2.5 48.3 1.0
OE2 E:GLU144 2.9 60.4 1.0
OE1 E:GLU144 2.9 56.7 1.0
CD E:GLU144 3.1 56.9 1.0
OAH E:YPG304 3.3 48.8 1.0
CG E:ASP145 3.3 47.2 1.0
OD2 E:ASP145 3.5 46.6 1.0
OAT E:YPG304 3.9 41.9 1.0
CG E:GLU144 4.4 51.7 1.0
CAO E:YPG304 4.4 42.4 1.0
O E:ILE146 4.4 40.5 1.0
CG2 E:ILE146 4.4 42.7 1.0
OAF E:YPG304 4.4 58.6 1.0
CBA E:YPG304 4.7 42.6 1.0
PBE E:YPG304 4.7 45.0 1.0
N E:ILE146 4.7 38.5 1.0
CAL E:YPG304 4.7 51.1 1.0
CB E:ASP145 4.8 44.0 1.0
N E:ASP145 4.8 43.8 1.0
OG E:SER79 4.8 48.6 1.0
NBC E:YPG304 4.9 47.5 1.0
CBB E:YPG304 4.9 50.3 1.0
CAN E:YPG304 5.0 50.9 1.0

Magnesium binding site 10 out of 27 in 6bo7

Go back to Magnesium Binding Sites List in 6bo7
Magnesium binding site 10 out of 27 in the Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine


Mono view


Stereo pair view

A full contact list of Magnesium with other atoms in the Mg binding site number 10 of Crystal Structure of Plasmodium Vivax Hypoxanthine Guanine Phosphoribosyltransferase in Complex with [3R,4R]-4-Guanin-9-Yl-3- ((S)-2-Hydroxy-2-Phosphonoethyl)Oxy-1-N-(Phosphonopropionyl) Pyrrolidine within 5.0Å range:
probe atom residue distance (Å) B Occ
E:Mg302

b:48.4
occ:1.00
OAB E:YPG304 2.0 51.2 1.0
OD1 E:ASP204 2.0 64.7 1.0
OAD E:YPG304 2.0 46.3 1.0
CG E:ASP204 2.9 61.0 1.0
OD2 E:ASP204 3.1 61.3 1.0
CAU E:YPG304 3.1 46.9 1.0
PBE E:YPG304 3.3 45.0 1.0
CAM E:YPG304 3.6 58.5 1.0
NH2 E:ARG210 3.8 57.1 1.0
CAL E:YPG304 3.9 51.1 1.0
NBC E:YPG304 4.0 47.5 1.0
OAG E:YPG304 4.2 42.5 1.0
CAP E:YPG304 4.2 48.1 1.0
CB E:ASP204 4.3 56.6 1.0
OAH E:YPG304 4.3 48.8 1.0
O E:ASP204 4.4 60.8 1.0
N E:ASP204 4.6 57.0 1.0
CZ E:ARG210 4.6 52.9 1.0
NH1 E:ARG210 4.8 49.9 1.0
CA E:ASP204 4.8 56.0 1.0
C E:ASP204 4.8 58.2 1.0

Reference:

D.T.Keough, D.Rejman, R.Pohl, E.Zbornikova, D.Hockova, T.Croll, M.D.Edstein, G.W.Birrell, M.Chavchich, L.M.J.Naesens, G.K.Pierens, I.M.Brereton, L.W.Guddat. Design of Plasmodium Vivax Hypoxanthine-Guanine Phosphoribosyltransferase Inhibitors As Potential Antimalarial Therapeutics. Acs Chem. Biol. V. 13 82 2018.
ISSN: ESSN 1554-8937
PubMed: 29161011
DOI: 10.1021/ACSCHEMBIO.7B00916
Page generated: Mon Sep 30 19:52:18 2024

Last articles

Zn in 9MJ5
Zn in 9HNW
Zn in 9G0L
Zn in 9FNE
Zn in 9DZN
Zn in 9E0I
Zn in 9D32
Zn in 9DAK
Zn in 8ZXC
Zn in 8ZUF
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy