SMTL ID : 6ejz.2 (1 other biounit)

Tryptophan Repressor TrpR from E.coli variant S88Y with Indole-3-acetic acid as ligand

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.90 Å

Oligo State

homo-dimer

Ligands

3 x IAC: 1H-INDOL-3-YLACETIC ACID(Non-covalent)(Covalent)

IAC.1: 9 residues within 4Å: Chain A: R.54, I.57, T.81, R.84, G.85, Y.88 Chain B: L.41, M.42, T.44 10 PLIP interactions: 8 interactions with chain A, 2 interactions with chain B Hydrophobic interactions: A:R.54, A:I.57, A:T.81, A:Y.88, B:T.44 Hydrogen bonds: A:Y.88, B:L.41 Water bridges: A:R.54 Salt bridges: A:R.84 pi-Stacking: A:Y.88 IAC.5: 9 residues within 4Å: Chain A: L.41, M.42, T.44 Chain B: R.54, I.57, T.81, R.84, G.85, Y.88 13 PLIP interactions: 11 interactions with chain B, 2 interactions with chain A Hydrophobic interactions: B:R.54, B:R.54, B:I.57, B:I.57, B:T.81, B:Y.88, B:Y.88, A:T.44 Hydrogen bonds: B:Y.88, B:Y.88, A:L.41 Salt bridges: B:R.54, B:R.84 IAC.9: 7 residues within 4Å: Chain A: P.45, R.48, E.49 Chain B: R.15, H.16, W.19 Ligands: EDO.8 9 PLIP interactions: 4 interactions with chain A, 5 interactions with chain B Hydrophobic interactions: A:R.48, B:R.15, B:W.19 Hydrogen bonds: A:E.49, A:E.49 pi-Cation interactions: A:R.48, B:R.15 Salt bridges: B:R.15, B:H.16

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

EDO.2: 4 residues within 4Å: Chain A: G.78, A.80, T.81, R.84 6 PLIP interactions: 6 interactions with chain A Hydrogen bonds: A:G.78, A:A.80, A:T.81, A:T.81, A:R.84, A:R.84 EDO.3: 2 residues within 4Å: Chain A: Y.7, S.8 1 PLIP interactions: 1 interactions with chain A Water bridges: A:A.9 EDO.4: 2 residues within 4Å: Chain A: A.50, R.54 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:R.54, A:R.54 Water bridges: A:T.53 EDO.6: 4 residues within 4Å: Chain B: G.78, I.79, A.80, T.81 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:I.79, B:A.80, B:T.81, B:T.81 EDO.7: 3 residues within 4Å: Chain B: A.50, T.53, R.54 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:R.54, B:R.54 Water bridges: B:G.76 EDO.8: 2 residues within 4Å: Chain B: H.16 Ligands: IAC.9 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:H.16

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Herud-Sikimic, O. et al., A biosensor for the direct visualization of auxin. Nature (2021)

Release Date

2019-02-06

Peptides

Trp operon repressor: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
D

Trp operon repressor

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