SMTL ID : 2xn7.1

Crystal structure of thyroxine-binding globulin complexed with thyroxine-fluoresein (T405-CF)

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.43 Å

Oligo State

hetero-1-1-mer

Ligands

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

T44.1: 13 residues within 4Å: Chain A: S.13, A.16, Q.227, L.235, L.237, S.255, L.258, N.262 Chain B: L.16, E.17, R.18, R.21 Ligands: F6Z.2 6 PLIP interactions: 4 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:L.235, A:L.258 Hydrogen bonds: A:N.262 Halogen bonds: A:S.255, B:E.17 Salt bridges: B:R.18

1 x F6Z: 3',6'-DIHYDROXY-3-OXO-3H-SPIRO[2-BENZOFURAN-1,9'-XANTHENE]-5-CARBOXYLIC ACID(Non-covalent)

F6Z.2: 7 residues within 4Å: Chain A: Y.214, Q.227, D.229, N.233, K.267 Chain B: R.18 Ligands: T44.1 7 PLIP interactions: 5 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:Y.214 Hydrogen bonds: A:Q.227, A:N.233 Water bridges: A:A.234 Salt bridges: A:K.267, B:R.18 pi-Cation interactions: B:R.18

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

EDO.3: 3 residues within 4Å: Chain A: T.188, D.190 Ligands: CA.4 No protein-ligand interaction detected (PLIP) EDO.5: 2 residues within 4Å: Chain A: H.215 Chain B: P.3 No protein-ligand interaction detected (PLIP)

1 x CA: CALCIUM ION(Non-covalent)

CA.4: 3 residues within 4Å: Chain A: E.189, D.190 Ligands: EDO.3 No protein-ligand interaction detected (PLIP)

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

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