SMTL ID : 2xn6.1

Crystal structure of thyroxine-binding globulin complexed with thyroxine-fluoresein

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.29 Å

Oligo State

hetero-1-1-mer

Ligands

7 x CA: CALCIUM ION(Non-covalent)(Non-functional Binders)

CA.1: 2 residues within 4Å: Chain A: Q.98, H.174 2 PLIP interactions: 1 interactions with chain A, 1 Ligand-Water interactions Metal complexes: A:H.174, H2O.2 CA.4: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP) CA.7: 4 residues within 4Å: Chain A: G.106, K.107, T.130, F.132 No protein-ligand interaction detected (PLIP) CA.10: 3 residues within 4Å: Chain A: E.309, D.310, N.311 No protein-ligand interaction detected (PLIP) CA.11: 2 residues within 4Å: Chain A: A.113, E.309 No protein-ligand interaction detected (PLIP) CA.12: 1 residues within 4Å: Chain A: F.128 No protein-ligand interaction detected (PLIP) CA.13: 0 residues within 4Å: (No contacts) No protein-ligand interaction detected (PLIP)

7 x EDO: 1,2-ETHANEDIOL(Non-functional Binders)

EDO.2: 5 residues within 4Å: Chain A: N.301, A.302, D.303, N.311, R.344 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:N.301, A:D.303, A:N.311 EDO.3: 6 residues within 4Å: Chain A: D.17, F.18, N.21, T.64, G.66, M.292 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:N.21 Water bridges: A:L.65, A:M.292 EDO.5: 7 residues within 4Å: Chain A: K.276, H.325, G.327, E.328, K.329, G.330 Ligands: EDO.9 7 PLIP interactions: 7 interactions with chain A Hydrogen bonds: A:K.276, A:K.276, A:G.327, A:E.328, A:K.329, A:G.330, A:G.330 EDO.6: 5 residues within 4Å: Chain A: I.135, S.136, K.139, D.160, L.161 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:K.139, A:D.160, A:L.161 EDO.8: 4 residues within 4Å: Chain A: T.30, A.281, T.282, Y.283 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:T.282 Water bridges: A:T.30, A:T.30 EDO.9: 8 residues within 4Å: Chain A: K.176, A.177, Q.178, H.325, G.330, T.331, E.332 Ligands: EDO.5 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:Q.178, A:T.331 Water bridges: A:E.332 EDO.16: 5 residues within 4Å: Chain A: D.32, M.246 Chain B: S.10, K.28, V.30 5 PLIP interactions: 1 interactions with chain A, 4 interactions with chain B Hydrogen bonds: A:D.32, B:S.10, B:S.10 Water bridges: B:K.28, B:K.28

1 x F6Y: 3',6'-DIHYDROXY-3-OXO-3H-SPIRO[2-BENZOFURAN-1,9'-XANTHENE]-6-CARBOXYLIC ACID(Non-covalent)

F6Y.14: 4 residues within 4Å: Chain A: Y.214, N.262 Chain B: R.18 Ligands: T44.15 2 PLIP interactions: 1 interactions with chain B, 1 interactions with chain A pi-Cation interactions: B:R.18 Hydrophobic interactions: A:Y.214

1 x T44: 3,5,3',5'-TETRAIODO-L-THYRONINE(Non-covalent)

T44.15: 13 residues within 4Å: Chain A: S.12, A.16, Q.227, L.235, L.237, L.258, K.259, N.262 Chain B: L.16, E.17, R.18, R.21 Ligands: F6Y.14 7 PLIP interactions: 2 interactions with chain B, 5 interactions with chain A Salt bridges: B:R.18 Halogen bonds: B:E.17, A:S.12 Hydrophobic interactions: A:L.235, A:L.258 Hydrogen bonds: A:N.262 Water bridges: A:N.262

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Qi, X. et al., Allosteric Modulation of Hormone Release from Thyroxine and Corticosteroid Binding-Globulins. J.Biol.Chem. (2011)

Release Date

2011-02-16

Peptides

THYROXINE-BINDING GLOBULIN: A
THYROXINE-BINDING GLOBULIN: B

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

THYROXINE-BINDING GLOBULIN

THYROXINE-BINDING GLOBULIN

Related Entries With Identical Sequence