SMTL ID : 1s67.1

Crystal structure of heme domain of direct oxygen sensor from E. coli

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.50 Å

Oligo State

homo-dimer

Ligands

2 x HEM: PROTOPORPHYRIN IX CONTAINING FE(Covalent)

HEM.1: 22 residues within 4Å: Chain A: V.19, I.21, W.38, I.50, L.53, I.54, P.55, L.58, H.62, Y.65, I.66, N.69, M.80, R.82, L.84, Q.85, L.86, F.98, L.100, Y.111, A.113 Ligands: OXY.2 23 PLIP interactions: 23 interactions with chain A, Hydrophobic interactions: A:V.19, A:I.21, A:W.38, A:I.50, A:P.55, A:Y.65, A:Y.65, A:Y.65, A:I.66, A:L.84, A:L.86, A:F.98, A:F.98, A:L.100, A:L.100, A:Y.111, A:Y.111 Hydrogen bonds: A:N.69 Water bridges: A:H.68 Salt bridges: A:R.82 pi-Cation interactions: A:R.82, A:R.82 Metal complexes: A:H.62 HEM.3: 22 residues within 4Å: Chain B: V.19, I.21, W.38, I.50, L.53, I.54, P.55, L.58, H.62, Y.65, I.66, N.69, V.77, E.78, G.79, M.80, Q.85, L.86, F.98, L.100, Y.111, A.113 24 PLIP interactions: 24 interactions with chain B, Hydrophobic interactions: B:V.19, B:I.21, B:I.21, B:W.38, B:I.50, B:P.55, B:L.58, B:Y.65, B:I.66, B:V.77, B:L.86, B:F.98, B:F.98, B:L.100, B:L.100, B:Y.111, B:Y.111 Hydrogen bonds: B:N.69, B:E.78, B:G.79, B:M.80 Water bridges: B:N.69 Salt bridges: B:K.74 Metal complexes: B:H.62

1 x OXY: OXYGEN MOLECULE(Non-covalent)

OXY.2: 5 residues within 4Å: Chain A: R.82, L.84, F.98, L.100 Ligands: HEM.1 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:R.82, A:R.82

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Park, H.J. et al., Insights into signal transduction involving PAS domain oxygen-sensing heme proteins from the X-ray crystal structure of Escherichia coli Dos heme domain (Ec DosH). Biochemistry (2004)

Release Date

2004-06-22

Peptides

Hypothetical protein yddU: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
L

B
U

Hypothetical protein yddU

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