SMTL ID : 2nmr.1

An unusual twin-His arrangement in the pore of ammonia channels is essential for substrate conductance

Coordinates

PDB Format

Method

X-RAY DIFFRACTION 2.10 Å

Oligo State

homo-trimer

Ligands

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

SO4.1: 3 residues within 4Å: Chain A: R.124, F.125, S.126 5 PLIP interactions: 5 interactions with chain A Hydrogen bonds: A:S.126, A:S.126 Water bridges: A:F.125, A:F.125 Salt bridges: A:R.124 SO4.4: 3 residues within 4Å: Chain B: R.124, F.125, S.126 5 PLIP interactions: 5 interactions with chain B Hydrogen bonds: B:S.126, B:S.126 Water bridges: B:F.125, B:F.125 Salt bridges: B:R.124 SO4.7: 3 residues within 4Å: Chain C: R.124, F.125, S.126 5 PLIP interactions: 5 interactions with chain C Hydrogen bonds: C:S.126, C:S.126 Water bridges: C:F.125, C:F.125 Salt bridges: C:R.124

3 x ACT: ACETATE ION(Non-functional Binders)

ACT.2: 8 residues within 4Å: Chain A: V.147, W.148, A.158, L.159, D.160, F.161, Y.278 Ligands: GOL.3 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:D.160, A:Y.278, A:Y.278 ACT.5: 8 residues within 4Å: Chain B: V.147, W.148, A.158, L.159, D.160, F.161, Y.278 Ligands: GOL.6 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:D.160, B:Y.278, B:Y.278 ACT.8: 8 residues within 4Å: Chain C: V.147, W.148, A.158, L.159, D.160, F.161, Y.278 Ligands: GOL.9 3 PLIP interactions: 3 interactions with chain C Hydrogen bonds: C:D.160, C:Y.278, C:Y.278

3 x GOL: GLYCEROL(Non-functional Binders)

GOL.3: 6 residues within 4Å: Chain A: W.148, D.160, F.161, S.219, Y.278 Ligands: ACT.2 1 PLIP interactions: 1 interactions with chain A Hydrogen bonds: A:F.161 GOL.6: 6 residues within 4Å: Chain B: W.148, D.160, F.161, S.219, Y.278 Ligands: ACT.5 1 PLIP interactions: 1 interactions with chain B Hydrogen bonds: B:F.161 GOL.9: 6 residues within 4Å: Chain C: W.148, D.160, F.161, S.219, Y.278 Ligands: ACT.8 1 PLIP interactions: 1 interactions with chain C Hydrogen bonds: C:F.161

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Javelle, A. et al., An unusual twin-his arrangement in the pore of ammonia channels is essential for substrate conductance. J.Biol.Chem. (2006)

Release Date

2006-11-14

Peptides

Ammonia channel: ABC

SMTL:PDB

SMTL Chain Id:
PDB Chain Id:

A
A

B
A

C
A

Membrane

We predict this structure to be a membrane protein.
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Ammonia channel

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