SMTL ID : 3br1.2 (2 other biounits)

Crystal Structure of the Complex of Dequalinium Bound to QacR(E90Q), a Mutant of a Multidrug Binding Transcriptional Repressor

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 3.31 Å

Oligo State

homo-dimer

Ligands

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

SO4.1: 1 residues within 4Å: Chain A: K.36 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:K.36 SO4.2: 4 residues within 4Å: Chain A: Y.20, K.46, E.105, Y.106 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:Y.20, A:E.105 Salt bridges: A:K.46 SO4.3: 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 SO4.4: 3 residues within 4Å: Chain A: T.24, G.26, K.36 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:T.24, A:G.26, A:E.27 Salt bridges: A:K.36 SO4.5: 4 residues within 4Å: Chain A: L.3, K.4, N.38, H.42 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:L.3 Salt bridges: A:H.42 SO4.6: 3 residues within 4Å: Chain A: K.60, Q.90, Y.91 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:Q.90 Salt bridges: A:K.60 SO4.7: 6 residues within 4Å: Chain A: K.177 Chain B: I.142, N.143, D.144, V.145, V.148 5 PLIP interactions: 4 interactions with chain B, 1 interactions with chain A Hydrogen bonds: B:I.142, B:N.143, B:N.143, B:D.144 Salt bridges: A:K.177 SO4.8: 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 SO4.9: 1 residues within 4Å: Chain B: H.42 1 PLIP interactions: 1 interactions with chain B Salt bridges: B:H.42 SO4.10: 5 residues within 4Å: Chain B: T.24, T.25, G.26, E.27, K.36 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:T.24, B:G.26, B:E.27 Salt bridges: B:K.36 SO4.11: 4 residues within 4Å: Chain B: L.3, K.4, 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 SO4.12: 4 residues within 4Å: Chain B: Y.40, T.45, K.46, E.47 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:K.46

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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