1XQE Transport Protein date Oct 12, 2004
title The Mechanism Of Ammonia Transport Based On The Crystal Stru Amtb Of E. Coli.
authors L.Zheng, D.Kostrewa, S.Berneche, F.K.Winkler, X.D.Li
compound source
Molecule: Probable Ammonium Transporter
Chain: A
Synonym: Ammonia Transporter
Engineered: Yes
 Organism_scientific: Escherichia Coli
Organism_taxid: 562
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: C43 (De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet22b-Amtblh
symmetry Space Group: H 3
R_factor 0.159 R_Free 0.186
crystal
cell
length a length b length c angle alpha angle beta angle gamma
116.632 116.632 130.543 90.00 90.00 120.00
method X-Ray Diffractionresolution 2.10 Å
ligand ACT, SO4 enzyme
related structures by homologous chain: 1U77
Gene
Ontology
ChainFunctionProcessComponent
A


Primary referenceThe mechanism of ammonia transport based on the crystal structure of AmtB of Escherichia coli., Zheng L, Kostrewa D, Berneche S, Winkler FK, Li XD, Proc Natl Acad Sci U S A 2004 Dec 7;101(49):17090-5. Epub 2004 Nov 24. PMID:15563598
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (61 Kb) [Save to disk]
  • Biological Unit Coordinates (1xqe.pdb1.gz) 163 Kb
  • LPC: Ligand-Protein Contacts for 1XQE
  • CSU: Contacts of Structural Units for 1XQE
  • Likely Quarternary Molecular Structure file(s) for 1XQE
  • Structure Factors (317 Kb)
  • Retrieve 1XQE in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1XQE from S2C, [Save to disk]
  • Re-refined 1xqe structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
    • View 1XQE in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
    • Visual 3D analysis of 1XQE
  • Ramachandran plot from PDBSum
    • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 1XQE, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1xqea_, region A [Jmol] [rasmolscript] [script source]
    • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1xqe] [1xqe_A]
  • SWISS-PROT database: [P69681]
  • Belongs to the ammonium transporter channel (amt) family according to TCDB.
  • Domain organization of [AMTB_ECOLI] by SWISSPFAM
    • Other resources with information on 1XQE
  • Community annotation for 1XQE at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
    • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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