SMTL ID : 2npc.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 ACT: ACETATE ION(Non-functional Binders)

ACT.1: 6 residues within 4Å: Chain A: V.147, A.158, L.159, D.160, F.161, Y.278 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:D.160, A:Y.278, A:Y.278 ACT.4: 6 residues within 4Å: Chain B: V.147, A.158, L.159, D.160, F.161, Y.278 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:D.160, B:Y.278, B:Y.278 ACT.7: 6 residues within 4Å: Chain C: V.147, A.158, L.159, D.160, F.161, Y.278 3 PLIP interactions: 3 interactions with chain C Hydrogen bonds: C:D.160, C:Y.278, C:Y.278

6 x IMD: IMIDAZOLE(Non-covalent)

IMD.2: 6 residues within 4Å: Chain A: F.103, Q.104, F.107, W.148, F.161, S.219 4 PLIP interactions: 4 interactions with chain A Hydrogen bonds: A:Q.104 pi-Stacking: A:F.107, A:W.148, A:W.148 IMD.3: 8 residues within 4Å: Chain A: M.23, I.110, L.114, V.167, W.212, F.215, V.270, H.318 No protein-ligand interaction detected (PLIP) IMD.5: 6 residues within 4Å: Chain B: F.103, Q.104, F.107, W.148, F.161, S.219 4 PLIP interactions: 4 interactions with chain B Hydrogen bonds: B:Q.104 pi-Stacking: B:F.107, B:W.148, B:W.148 IMD.6: 8 residues within 4Å: Chain B: M.23, I.110, L.114, V.167, W.212, F.215, V.270, H.318 No protein-ligand interaction detected (PLIP) IMD.8: 6 residues within 4Å: Chain C: F.103, Q.104, F.107, W.148, F.161, S.219 4 PLIP interactions: 4 interactions with chain C Hydrogen bonds: C:Q.104 pi-Stacking: C:F.107, C:W.148, C:W.148 IMD.9: 8 residues within 4Å: Chain C: M.23, I.110, L.114, V.167, W.212, F.215, V.270, H.318 No protein-ligand interaction detected (PLIP)

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.
Show / Hide

Ammonia channel