SMTL ID : 3br3.2 (1 other biounit)

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

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.80 Å

Oligo State

homo-tetramer

Ligands

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

SO4.1: 4 residues within 4Å: Chain A: R.76, Y.80, Q.180, N.184 Ligand excluded by PLIP SO4.2: 2 residues within 4Å: Chain A: L.186, S.187 Ligand excluded by PLIP SO4.3: 4 residues within 4Å: Chain A: I.142, N.143, D.144 Chain B: K.177 Ligand excluded by PLIP SO4.4: 3 residues within 4Å: Chain A: K.4, N.38, H.42 Ligand excluded by PLIP SO4.5: 2 residues within 4Å: Chain A: H.128, K.132 Ligand excluded by PLIP SO4.7: 2 residues within 4Å: Chain B: K.30, E.33 Ligand excluded by PLIP SO4.8: 2 residues within 4Å: Chain B: H.128, K.132 Ligand excluded by PLIP SO4.9: 2 residues within 4Å: Chain B: W.140, S.141 Ligand excluded by PLIP SO4.10: 4 residues within 4Å: Chain C: R.76, Y.80, Q.180, N.184 Ligand excluded by PLIP SO4.11: 2 residues within 4Å: Chain C: L.186, S.187 Ligand excluded by PLIP SO4.12: 4 residues within 4Å: Chain C: I.142, N.143, D.144 Chain D: K.177 Ligand excluded by PLIP SO4.13: 3 residues within 4Å: Chain C: K.4, N.38, H.42 Ligand excluded by PLIP SO4.14: 2 residues within 4Å: Chain C: H.128, K.132 Ligand excluded by PLIP SO4.16: 2 residues within 4Å: Chain D: K.30, E.33 Ligand excluded by PLIP SO4.17: 2 residues within 4Å: Chain D: H.128, K.132 Ligand excluded by PLIP SO4.18: 2 residues within 4Å: Chain D: W.140, S.141 Ligand excluded by PLIP

2 x ET: ETHIDIUM(Non-covalent)

ET.6: 10 residues within 4Å: Chain B: W.61, S.86, Q.90, Q.96, M.116, E.120, Y.123, A.153, N.154, N.157 8 PLIP interactions: 8 interactions with chain B Hydrophobic interactions: B:W.61, B:E.120, B:Y.123, B:N.157 Hydrogen bonds: B:Q.90, B:N.154 pi-Stacking: B:Y.123, B:Y.123 ET.15: 10 residues within 4Å: Chain D: W.61, S.86, Q.90, Q.96, M.116, E.120, Y.123, A.153, N.154, N.157 8 PLIP interactions: 8 interactions with chain D Hydrophobic interactions: D:W.61, D:E.120, D:Y.123, D:N.157 Hydrogen bonds: D:Q.90, D:N.154 pi-Stacking: D:Y.123, D:Y.123

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: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
B

B
A

C
B

D
A

HTH-type transcriptional regulator qacR

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