SMTL ID : 1xqf.1

The mechanism of ammonia transport based on the crystal structure of AmtB of E. coli.

Coordinates

PDB Format Compare

Method

X-RAY DIFFRACTION 1.80 Å

Oligo State

homo-trimer

Ligands

6 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:F.125, A:S.126, A:S.126, A:S.126 Salt bridges: A:R.124 SO4.2: 3 residues within 4Å: Chain A: N.72, N.73, F.74 3 PLIP interactions: 3 interactions with chain A Hydrogen bonds: A:N.72, A:N.73, A:N.73 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:F.125, B:S.126, B:S.126, B:S.126 Salt bridges: B:R.124 SO4.5: 3 residues within 4Å: Chain B: N.72, N.73, F.74 3 PLIP interactions: 3 interactions with chain B Hydrogen bonds: B:N.72, B:N.73, B:N.73 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:F.125, C:S.126, C:S.126, C:S.126 Salt bridges: C:R.124 SO4.8: 3 residues within 4Å: Chain C: N.72, N.73, F.74 3 PLIP interactions: 3 interactions with chain C Hydrogen bonds: C:N.72, C:N.73, C:N.73

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

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

Links

RCSB   PDBe   PDBe-KB   PDBj   PDBsum   CATH   PLIP

Citation

Zheng, L. et al., The mechanism of ammonia transport based on the crystal structure of AmtB of Escherichia coli. Proc.Natl.Acad.Sci.USA (2004)

Release Date

2004-10-26

Peptides

Probable ammonium transporter: 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

Probable ammonium transporter

Related Entries With Identical Sequence