SMTL ID : 1xj4.4 (5 other biounits)

CO-bound structure of BjFixLH

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.80 Å

Oligo State

homo-tetramer

Ligands

4 x NA: SODIUM ION(Non-functional Binders)

NA.1: 2 residues within 4Å: Chain A: I.68, G.69 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:G.69 NA.2: 7 residues within 4Å: Chain A: L.31, E.32, I.34 Chain C: L.31, E.32, I.34 Ligands: NA.9 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:I.34 NA.8: 2 residues within 4Å: Chain C: I.68, G.69 1 PLIP interactions: 1 interactions with chain C Hydrogen bonds: C:I.68 NA.9: 7 residues within 4Å: Chain A: L.31, E.32, I.34 Chain C: L.31, E.32, I.34 Ligands: NA.2 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:E.32

2 x CL: CHLORIDE ION(Non-functional Binders)

CL.3: 6 residues within 4Å: Chain A: I.68, G.69, H.85, S.87 Chain B: S.93, G.94 Ligand excluded by PLIP CL.10: 6 residues within 4Å: Chain C: I.68, G.69, H.85, S.87 Chain D: S.93, G.94 Ligand excluded by PLIP

4 x HEM: PROTOPORPHYRIN IX CONTAINING FE(Non-covalent)

HEM.4: 22 residues within 4Å: Chain A: I.7, I.9, V.38, L.41, M.42, D.46, H.50, Y.53, R.56, Y.57, P.63, H.64, I.65, I.66, R.70, V.72, T.73, M.84, L.86, F.99, G.101 Ligands: CMO.5 27 PLIP interactions: 26 interactions with chain A, 1 Ligand-Ligand interactions Hydrophobic interactions: A:I.9, A:V.38, A:L.41, A:M.42, A:Y.53, A:Y.53, A:Y.53, A:Y.57, A:Y.57, A:H.64, A:I.65, A:I.66, A:V.72, A:F.99 Hydrogen bonds: A:H.64, A:I.65, A:I.66 Water bridges: A:Y.53, A:R.56 Salt bridges: A:R.56, A:H.64, A:R.70 pi-Stacking: A:H.50, A:Y.53 pi-Cation interactions: A:H.50 Metal complexes: A:H.50, CMO.5 HEM.6: 24 residues within 4Å: Chain B: I.7, I.9, V.38, L.41, M.42, D.46, H.50, Y.53, R.56, Y.57, P.63, H.64, I.65, I.66, R.70, V.72, T.73, M.84, L.86, I.88, F.99, T.100, G.101 Ligands: CMO.7 26 PLIP interactions: 25 interactions with chain B, 1 Ligand-Ligand interactions Hydrophobic interactions: B:I.7, B:I.9, B:I.9, B:V.38, B:L.41, B:Y.53, B:Y.53, B:Y.53, B:Y.57, B:I.65, B:I.66, B:V.72, B:V.72, B:L.86, B:I.88, B:F.99 Hydrogen bonds: B:H.64, B:I.65, B:I.66 Salt bridges: B:R.56, B:R.56, B:H.64, B:R.70 pi-Stacking: B:H.50 Metal complexes: B:H.50, CMO.7 HEM.11: 22 residues within 4Å: Chain C: I.7, I.9, V.38, L.41, M.42, D.46, H.50, Y.53, R.56, Y.57, P.63, H.64, I.65, I.66, R.70, V.72, T.73, M.84, L.86, F.99, G.101 Ligands: CMO.12 27 PLIP interactions: 26 interactions with chain C, 1 Ligand-Ligand interactions Hydrophobic interactions: C:I.9, C:V.38, C:L.41, C:M.42, C:Y.53, C:Y.53, C:Y.53, C:Y.57, C:Y.57, C:H.64, C:I.65, C:I.66, C:V.72, C:F.99 Hydrogen bonds: C:H.64, C:I.65, C:I.66 Water bridges: C:Y.53, C:R.56 Salt bridges: C:R.56, C:H.64, C:R.70 pi-Stacking: C:H.50, C:Y.53 pi-Cation interactions: C:H.50 Metal complexes: C:H.50, CMO.12 HEM.13: 24 residues within 4Å: Chain D: I.7, I.9, V.38, L.41, M.42, D.46, H.50, Y.53, R.56, Y.57, P.63, H.64, I.65, I.66, R.70, V.72, T.73, M.84, L.86, I.88, F.99, T.100, G.101 Ligands: CMO.14 26 PLIP interactions: 25 interactions with chain D, 1 Ligand-Ligand interactions Hydrophobic interactions: D:I.7, D:I.9, D:I.9, D:V.38, D:L.41, D:Y.53, D:Y.53, D:Y.53, D:Y.57, D:I.65, D:I.66, D:V.72, D:V.72, D:L.86, D:I.88, D:F.99 Hydrogen bonds: D:H.64, D:I.65, D:I.66 Salt bridges: D:R.56, D:R.56, D:H.64, D:R.70 pi-Stacking: D:H.50 Metal complexes: D:H.50, CMO.14

4 x CMO: CARBON MONOXIDE(Non-functional Binders)

CMO.5: 5 residues within 4Å: Chain A: H.50, I.65, L.86, I.88 Ligands: HEM.4 No protein-ligand interaction detected (PLIP) CMO.7: 5 residues within 4Å: Chain B: H.50, I.65, L.86, I.88 Ligands: HEM.6 No protein-ligand interaction detected (PLIP) CMO.12: 5 residues within 4Å: Chain C: H.50, I.65, L.86, I.88 Ligands: HEM.11 No protein-ligand interaction detected (PLIP) CMO.14: 5 residues within 4Å: Chain D: H.50, I.65, L.86, I.88 Ligands: HEM.13 No protein-ligand interaction detected (PLIP)

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Key, J. et al., Crystal Structures of Deoxy and CO-Bound bjFixLH Reveal Details of Ligand Recognition and Signaling. Biochemistry (2005)

Release Date

2005-03-29

Peptides

Sensor protein fixL: ABCD

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
B

C
A

D
B

Sensor protein fixL

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