SMTL ID : 3br2.2 (2 other biounits)

Crystal Structure of the Complex of Dequalinium Bound to QacR(E120Q), a Mutant of a Multidrug Binding Transcriptional Repressor

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.90 Å

Oligo State

homo-dimer

Ligands

13 x SO4: SULFATE ION(Non-functional Binders)

SO4.1: 4 residues within 4Å: Chain A: T.24, T.25, G.26, E.27 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:G.26, A:E.27 SO4.2: 4 residues within 4Å: Chain A: Y.20, K.46, E.105, Y.106 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:Y.20, A:E.105 Water bridges: A:E.47 Salt bridges: A:K.46 SO4.3: 2 residues within 4Å: Chain A: K.30, E.33 No protein-ligand interaction detected (PLIP) SO4.4: 3 residues within 4Å: Chain A: K.60, E.90, Y.91 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:E.90, A:Y.91 Salt bridges: A:K.12, A:K.60 SO4.5: 5 residues within 4Å: Chain A: L.8, K.12, I.53, I.56, E.57 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:I.53, A:E.57 Salt bridges: A:K.12 SO4.6: 6 residues within 4Å: Chain A: F.162, T.163, H.164, E.165, Q.166 Chain B: Y.103 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:F.162, A:H.164, A:E.165, A:E.165 SO4.7: 2 residues within 4Å: Chain A: R.76, Y.80 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:Y.80, A:Y.80 Salt bridges: A:R.76 SO4.8: 2 residues within 4Å: Chain A: H.128, K.132 2 PLIP interactions: 2 interactions with chain A Salt bridges: A:H.128, A:K.132 SO4.9: 5 residues within 4Å: Chain B: L.8, K.12, I.53, I.56, E.57 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:E.57, B:E.57 Salt bridges: B:K.12 SO4.10: 5 residues within 4Å: Chain B: T.24, T.25, G.26, E.27, K.36 5 PLIP interactions: 5 interactions with chain B Hydrogen bonds: B:T.24, B:T.25, B:G.26, B:E.27 Salt bridges: B:K.36 SO4.11: 2 residues within 4Å: Chain B: H.128, K.132 2 PLIP interactions: 2 interactions with chain B Salt bridges: B:H.128, B:K.132 SO4.12: 3 residues within 4Å: Chain B: Y.40, T.45, K.46 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:K.46 SO4.13: 3 residues within 4Å: Chain B: L.3, N.38, H.42 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:L.3, B:K.4, B:N.38 Salt bridges: B:H.42

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Brooks, B.E. et al., Formal electrostatic interactions do not govern QacR-cation affinity. To be Published

Release Date

2008-12-23

Peptides

HTH-type transcriptional regulator qacR: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
D

B
E

HTH-type transcriptional regulator qacR

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