1XQE

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


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.186
  • R-Value Work: 0.159

Literature

Macromolecules
Sequence Display for 1XQE

Classification: TRANSPORT PROTEIN

Total Structure Weight: 43970.08

Macromolecule Entities
Molecule Chains Length Organism Details
Probable ammonium transporter A 418 Escherichia coli Gene Name(s): amtB ybaG b0451 JW0441
Metabolic Pathways
Maps:       
Reactions:
ESCHER  BiGG

Membrane Protein

Source: mpstruc | Group: ALPHA-HELICAL

Subgroup Name: Channels: Amt/Mep/Rh proteins

Protein Name: AmtB ammonia channel (mutant)


Small Molecules
Ligands 2 Unique
ID Chains Name / Formula / InChI Key 2D Diagram 3D Interactions
SO4
Query on SO4

A SULFATE ION
O4 S
QAOWNCQODCNURD-UHFFFAOYSA-L
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)
ACT
Query on ACT

A ACETATE ION
C2 H3 O2
QTBSBXVTEAMEQO-UHFFFAOYSA-M
Ligand Explorer NGL
 
Binding Pocket (JSmol)
 
Electron Density (JSmol)

Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.1 Å
  • R-Value Free: 0.186
  • R-Value Work: 0.159
  • Space Group: H 3

Unit Cell:

Length (Å) Angle (°)
a = 116.63 α = 90.00
b = 116.63 β = 90.00
c = 130.54 γ = 120.00

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History

Deposition Data

  • Deposited Date: 2004-10-12
  • Released Date: 2004-10-26
  • Deposition author(s): Zheng, L., Kostrewa, D., Berneche, S., Winkler, F.K., Li, X.-D.

Revision History

  • Version 1_0: 2004-10-26

    Type: Initial release

  • Version 1_1: 2008-04-30

    Type: Version format compliance

  • Version 1_2: 2011-07-13

    Type: Derived calculations, Version format compliance

  • Version 1_3: 2017-10-11

    Type: Refinement description