SMTL ID : 5ohf.2 (3 other biounits)

Globin sensor domain of AfGcHK (FeIII form) in complex with cyanide, partially reduced

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 1.80 Å

Oligo State

homo-dimer

Ligands

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

HEM.1: 19 residues within 4Å: Chain A: F.44, I.48, A.54, A.57, L.58, Q.64, L.68, M.72, W.75, I.95, V.98, H.99, I.102, L.104, M.109, A.112, M.113 Chain B: Y.15 Ligands: CYN.2 13 PLIP interactions: 13 interactions with chain A, Hydrophobic interactions: A:F.44, A:I.48, A:I.48, A:A.57, A:L.58, A:W.75, A:I.95, A:V.98, A:I.102, A:L.104, A:L.104 Salt bridges: A:R.91 Metal complexes: A:H.99 HEM.4: 20 residues within 4Å: Chain A: Y.15 Chain B: F.44, I.48, A.54, A.57, L.58, Q.64, L.68, M.72, W.75, I.95, V.98, H.99, I.102, L.104, Y.108, M.109, A.112, M.113 Ligands: CYN.5 15 PLIP interactions: 15 interactions with chain B, Hydrophobic interactions: B:I.48, B:I.48, B:A.54, B:A.57, B:L.58, B:W.75, B:I.95, B:V.98, B:I.102, B:I.102, B:L.104, B:L.104 Water bridges: B:Q.64 pi-Stacking: B:F.44 Metal complexes: B:H.99

2 x CYN: CYANIDE ION(Non-covalent)

CYN.2: 4 residues within 4Å: Chain A: Y.45, L.68, M.72 Ligands: HEM.1 2 PLIP interactions: 2 interactions with chain A Hydrogen bonds: A:Y.45, A:Y.45 CYN.5: 4 residues within 4Å: Chain B: F.44, Y.45, M.72 Ligands: HEM.4 2 PLIP interactions: 2 interactions with chain B Hydrogen bonds: B:Y.45, B:Y.45

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

CL.3: 2 residues within 4Å: Chain A: R.139 Chain B: R.139 Ligand excluded by PLIP CL.6: 2 residues within 4Å: Chain B: E.52, R.55 Ligand excluded by PLIP

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Stranava, M. et al., Coordination and redox state-dependent structural changes of the heme-based oxygen sensor AfGcHK associated with intraprotein signal transduction. J. Biol. Chem. (2017)

Release Date

2017-11-08

Peptides

Globin-coupled histidine kinase: AB

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
C

B
D

Globin-coupled histidine kinase

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