Calcium in PDB 2xn6: Crystal Structure of Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein
Protein crystallography data
The structure of Crystal Structure of Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein, PDB code: 2xn6
was solved by
X.Qi,
Y.Yan,
Z.Wei,
A.Zhou,
with X-Ray Crystallography technique. A brief refinement statistics is given in the table below:
Resolution Low / High (Å)
|
86.34 /
1.29
|
Space group
|
P 21 21 2
|
Cell size a, b, c (Å), α, β, γ (°)
|
172.690,
42.140,
56.100,
90.00,
90.00,
90.00
|
R / Rfree (%)
|
20.725 /
23.453
|
Other elements in 2xn6:
The structure of Crystal Structure of Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein also contains other interesting chemical elements:
Calcium Binding Sites:
The binding sites of Calcium atom in the Crystal Structure of Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein
(pdb code 2xn6). This binding sites where shown within
5.0 Angstroms radius around Calcium atom.
In total 7 binding sites of Calcium where determined in the
Crystal Structure of Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein, PDB code: 2xn6:
Jump to Calcium binding site number:
1;
2;
3;
4;
5;
6;
7;
Calcium binding site 1 out
of 7 in 2xn6
Go back to
Calcium Binding Sites List in 2xn6
Calcium binding site 1 out
of 7 in the Crystal Structure of Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein
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 Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:Ca1356
b:38.8
occ:1.00
|
O
|
A:HOH2033
|
2.4
|
33.1
|
1.0
|
ND1
|
A:HIS185
|
2.8
|
12.9
|
1.0
|
CB
|
A:GLN109
|
3.5
|
15.8
|
1.0
|
CG
|
A:GLN109
|
3.5
|
18.7
|
1.0
|
N
|
A:GLN109
|
3.6
|
13.6
|
1.0
|
CG
|
A:HIS185
|
3.6
|
11.2
|
1.0
|
CB
|
A:HIS185
|
3.7
|
10.6
|
1.0
|
O
|
A:HIS185
|
3.7
|
9.8
|
1.0
|
CE1
|
A:HIS185
|
3.8
|
12.9
|
1.0
|
CE
|
A:LYS162
|
4.1
|
22.3
|
1.0
|
CA
|
A:GLN109
|
4.1
|
14.3
|
1.0
|
C
|
A:LEU108
|
4.2
|
13.8
|
1.0
|
C
|
A:HIS185
|
4.2
|
9.4
|
1.0
|
N
|
A:LEU108
|
4.2
|
13.9
|
1.0
|
CB
|
A:GLU107
|
4.3
|
17.3
|
1.0
|
C
|
A:GLU107
|
4.4
|
14.8
|
1.0
|
CA
|
A:LEU108
|
4.5
|
13.5
|
1.0
|
CA
|
A:HIS185
|
4.5
|
9.4
|
1.0
|
O
|
A:HOH2084
|
4.7
|
24.9
|
1.0
|
OE1
|
A:GLU107
|
4.8
|
23.6
|
1.0
|
CG
|
A:LYS162
|
4.8
|
17.9
|
1.0
|
CA
|
A:GLU107
|
4.8
|
16.9
|
1.0
|
O
|
A:GLU107
|
4.8
|
12.7
|
1.0
|
CD2
|
A:HIS185
|
4.8
|
12.3
|
1.0
|
NE2
|
A:HIS185
|
4.9
|
12.2
|
1.0
|
O
|
A:LEU108
|
4.9
|
14.4
|
1.0
|
O
|
A:GLN109
|
5.0
|
13.2
|
1.0
|
|
Calcium binding site 2 out
of 7 in 2xn6
Go back to
Calcium Binding Sites List in 2xn6
Calcium binding site 2 out
of 7 in the Crystal Structure of Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein
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 Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:Ca1359
b:19.3
occ:0.60
|
OD1
|
A:ASP222
|
3.2
|
17.6
|
0.5
|
CG
|
A:ASP222
|
3.7
|
16.0
|
0.5
|
OD2
|
A:ASP222
|
3.7
|
17.7
|
0.5
|
OD2
|
A:ASP222
|
4.0
|
18.0
|
0.5
|
O
|
A:HOH2184
|
4.1
|
17.3
|
1.0
|
O
|
A:MET221
|
4.5
|
16.7
|
1.0
|
CG
|
A:ASP222
|
4.6
|
15.5
|
0.5
|
CZ3
|
A:TRP280
|
4.8
|
16.7
|
1.0
|
CB
|
A:ASP222
|
4.9
|
15.2
|
0.5
|
OD1
|
A:ASP222
|
5.0
|
19.4
|
0.5
|
|
Calcium binding site 3 out
of 7 in 2xn6
Go back to
Calcium Binding Sites List in 2xn6
Calcium binding site 3 out
of 7 in the Crystal Structure of Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein
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 Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:Ca1362
b:28.6
occ:1.00
|
O
|
A:HOH2116
|
2.8
|
27.6
|
1.0
|
O
|
A:HOH2096
|
3.0
|
8.8
|
1.0
|
N
|
A:PHE143
|
3.3
|
19.5
|
1.0
|
N
|
A:LYS118
|
3.7
|
17.4
|
1.0
|
O
|
A:THR141
|
3.8
|
19.2
|
1.0
|
CB
|
A:PHE143
|
3.8
|
18.9
|
1.0
|
CA
|
A:GLY117
|
3.9
|
16.6
|
1.0
|
CA
|
A:PHE143
|
4.0
|
19.6
|
1.0
|
CG
|
A:LYS118
|
4.0
|
20.5
|
1.0
|
CD2
|
A:HIS119
|
4.1
|
18.8
|
1.0
|
N
|
A:SER144
|
4.2
|
21.0
|
1.0
|
C
|
A:GLY117
|
4.2
|
16.9
|
1.0
|
C
|
A:ASP142
|
4.3
|
19.8
|
1.0
|
C
|
A:PHE143
|
4.3
|
20.6
|
1.0
|
CA
|
A:ASP142
|
4.3
|
20.2
|
1.0
|
OD1
|
A:ASP142
|
4.4
|
23.0
|
1.0
|
CD2
|
A:PHE143
|
4.4
|
16.9
|
1.0
|
N
|
A:HIS119
|
4.6
|
17.4
|
1.0
|
CG
|
A:PHE143
|
4.6
|
17.9
|
1.0
|
CA
|
A:LYS118
|
4.7
|
18.1
|
1.0
|
CD
|
A:LYS118
|
4.7
|
22.7
|
1.0
|
C
|
A:THR141
|
4.8
|
19.0
|
1.0
|
CB
|
A:LYS118
|
4.8
|
19.3
|
1.0
|
NE2
|
A:HIS119
|
4.8
|
19.9
|
1.0
|
CG
|
A:HIS119
|
5.0
|
17.7
|
1.0
|
|
Calcium binding site 4 out
of 7 in 2xn6
Go back to
Calcium Binding Sites List in 2xn6
Calcium binding site 4 out
of 7 in the Crystal Structure of Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein
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 Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:Ca1365
b:86.9
occ:1.00
|
O
|
A:GLU320
|
3.6
|
22.8
|
1.0
|
C
|
A:ASP321
|
3.6
|
20.6
|
1.0
|
O
|
A:ASP321
|
3.7
|
20.8
|
1.0
|
CA
|
A:ASP321
|
3.9
|
21.9
|
1.0
|
CB
|
A:ASN322
|
4.0
|
18.8
|
1.0
|
N
|
A:ASN322
|
4.0
|
19.6
|
1.0
|
O
|
A:HOH2258
|
4.1
|
14.7
|
1.0
|
C
|
A:GLU320
|
4.5
|
21.7
|
1.0
|
N
|
A:ASP321
|
4.6
|
21.3
|
1.0
|
CA
|
A:ASN322
|
4.6
|
18.8
|
1.0
|
|
Calcium binding site 5 out
of 7 in 2xn6
Go back to
Calcium Binding Sites List in 2xn6
Calcium binding site 5 out
of 7 in the Crystal Structure of Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein
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 Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:Ca1366
b:67.2
occ:1.00
|
OE2
|
A:GLU320
|
3.8
|
29.1
|
1.0
|
N
|
A:ALA124
|
3.8
|
24.6
|
1.0
|
O
|
A:PRO122
|
4.0
|
21.1
|
1.0
|
CD2
|
A:LEU123
|
4.1
|
24.4
|
1.0
|
CA
|
A:LEU123
|
4.1
|
22.2
|
1.0
|
CG
|
A:GLU320
|
4.4
|
24.1
|
1.0
|
C
|
A:LEU123
|
4.5
|
22.8
|
1.0
|
CD
|
A:GLU320
|
4.5
|
25.6
|
1.0
|
CB
|
A:ALA124
|
4.6
|
26.5
|
1.0
|
CA
|
A:ALA124
|
4.8
|
25.7
|
1.0
|
CB
|
A:LEU123
|
4.8
|
22.3
|
1.0
|
C
|
A:PRO122
|
4.9
|
20.8
|
1.0
|
N
|
A:LEU123
|
4.9
|
21.0
|
1.0
|
|
Calcium binding site 6 out
of 7 in 2xn6
Go back to
Calcium Binding Sites List in 2xn6
Calcium binding site 6 out
of 7 in the Crystal Structure of Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein
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 Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:Ca1367
b:60.0
occ:1.00
|
CE1
|
A:PHE139
|
3.9
|
20.4
|
1.0
|
OE2
|
A:GLU152
|
4.0
|
24.3
|
1.0
|
CD1
|
A:PHE139
|
4.1
|
19.8
|
1.0
|
O
|
A:HOH2125
|
4.3
|
18.2
|
1.0
|
CZ
|
A:PHE139
|
4.5
|
19.9
|
1.0
|
CG
|
A:GLU152
|
4.8
|
19.4
|
1.0
|
CG
|
A:PHE139
|
4.8
|
18.2
|
1.0
|
CD
|
A:GLU152
|
4.8
|
22.2
|
1.0
|
|
Calcium binding site 7 out
of 7 in 2xn6
Go back to
Calcium Binding Sites List in 2xn6
Calcium binding site 7 out
of 7 in the Crystal Structure of Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein
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 Thyroxine-Binding Globulin Complexed with Thyroxine-Fluoresein within 5.0Å range:
probe
|
atom
|
residue
|
distance (Å)
|
B
|
Occ
|
A:Ca1368
b:73.7
occ:1.00
|
CB
|
A:SER204
|
4.2
|
18.7
|
1.0
|
CG2
|
A:THR212
|
4.4
|
20.5
|
1.0
|
OD2
|
B:ASP368
|
4.5
|
20.2
|
1.0
|
O
|
A:SER204
|
4.6
|
16.6
|
1.0
|
CB
|
A:LEU206
|
4.7
|
16.2
|
1.0
|
C
|
A:SER204
|
4.8
|
16.3
|
1.0
|
O
|
B:ASP368
|
4.8
|
13.1
|
1.0
|
N
|
A:LEU206
|
4.8
|
14.6
|
1.0
|
CD1
|
A:LEU206
|
4.9
|
18.1
|
1.0
|
CG
|
B:ASP368
|
4.9
|
15.5
|
1.0
|
|
Reference:
X.Qi,
F.Loiseau,
W.L.Chan,
Y.Yan,
Z.Wei,
L.G.Milroy,
R.M.Myers,
S.V.Ley,
R.J.Read,
R.W.Carrell,
A.Zhou.
Allosteric Modulation of Hormone Release From Thyroxine and Corticosteroid Binding-Globulins. J.Biol.Chem. V. 286 16163 2011.
ISSN: ISSN 0021-9258
PubMed: 21325280
DOI: 10.1074/JBC.M110.171082
Page generated: Fri Jul 12 19:10:41 2024
|