SMTL ID : 3br6.1 (2 other biounits)

Crystal Structure of the Complex of Rhodamine 6G Bound to QacR(E120Q), a Mutant of a Multidrug Binding Transcriptional Repressor

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 3.20 Å

Oligo State

homo-dimer

Ligands

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

SO4.1: 4 residues within 4Å: Chain B: N.2, L.3, K.4, H.42 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:L.3, B:K.4 Salt bridges: B:H.42 SO4.2: 4 residues within 4Å: Chain B: T.23, T.24, T.25, K.46 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:T.25, B:T.25 Salt bridges: B:K.46 SO4.3: 3 residues within 4Å: Chain B: T.24, G.26, E.27 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:T.24, B:T.24, B:G.26, B:E.27 SO4.4: 3 residues within 4Å: Chain B: S.35, K.36, G.37 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:K.36, B:G.37 Salt bridges: B:K.36 SO4.5: 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 SO4.6: 4 residues within 4Å: Chain B: D.144, V.145, N.146, A.147 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:D.144, B:N.146, B:N.146, B:A.147

1 x RHQ: RHODAMINE 6G(Non-covalent)

RHQ.7: 12 residues within 4Å: Chain B: L.54, E.57, E.58, W.61, Q.64, T.89, Y.93, Q.96, I.100, Y.123, N.157, T.161 8 PLIP interactions: 8 interactions with chain B Hydrophobic interactions: B:E.58, B:W.61, B:I.100, B:Y.123 Hydrogen bonds: B:Q.96 pi-Stacking: B:W.61, B:Y.93, B:Y.93

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
B

B
A

HTH-type transcriptional regulator qacR

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