SMTL ID : 1rpw.1 (1 other biounit)

Crystal Structure Of The Multidrug Binding Protein Qacr Bound To The Diamidine Hexamidine

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 2.90 Å

Oligo State

homo-dimer

Ligands

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

SO4.1: 3 residues within 4Å: Chain A: Q.64, E.90, Y.91 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:Q.64, A:Y.91 Salt bridges: A:K.67 SO4.2: 3 residues within 4Å: Chain A: T.24, T.25, K.46 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:T.24, A:T.24, A:T.25 Salt bridges: A:K.46 SO4.3: 3 residues within 4Å: Chain B: K.4, Y.41, H.42 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:Y.41 Salt bridges: B:K.4, B:H.42 SO4.4: 4 residues within 4Å: Chain B: V.29, S.35, K.36, G.37 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:K.36, B:G.37 SO4.5: 5 residues within 4Å: Chain B: N.2, 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 SO4.6: 3 residues within 4Å: Chain B: D.144, N.146, A.147 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:N.146, B:N.146, B:A.147

1 x DID: 4,4'[1,6-HEXANEDIYLBIS(OXY)]BISBENZENECARBOXIMIDAMIDE(Non-covalent)

DID.7: 12 residues within 4Å: Chain A: F.162 Chain B: E.57, K.60, W.61, Q.64, T.89, Y.93, E.120, I.124, A.153, N.154, N.157 9 PLIP interactions: 9 interactions with chain B Hydrophobic interactions: B:W.61, B:W.61, B:E.120, B:N.157 Hydrogen bonds: B:Q.64, B:E.120, B:N.154 Water bridges: B:N.117 pi-Stacking: B:Y.93

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Murray, D.S. et al., Crystal structures of QacR-diamidine complexes reveal additional multidrug-binding modes and a novel mechanism of drug charge neutralization. J.Biol.Chem. (2004)

Release Date

2004-06-01

Peptides

Transcriptional regulator qacR: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

Transcriptional regulator qacR

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