3C1H Transport Protein date Jan 23, 2008
title Substrate Binding, Deprotonation And Selectivity At The Peri Entrance Of The E. Coli Ammonia Channel Amtb
authors D.Lupo, F.K.Winkler
compound source
Molecule: Ammonia Channel
Chain: A
Synonym: Ammonia Transporter
Engineered: Yes
Mutation: Yes
 Organism_scientific: Escherichia Coli
Organism_taxid: 562
Gene: Amtb
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: C43 (De3)
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pet22b-Amtbf107a
symmetry Space Group: P 63
R_factor 0.204 R_Free 0.231
crystal
cell
length a length b length c angle alpha angle beta angle gamma
108.175 108.175 84.663 90.00 90.00 120.00
method X-Ray Diffractionresolution 2.20 Å
ligand ACT, IMD, LDA enzyme
Gene
Ontology
ChainFunctionProcessComponent
A


Primary referenceSubstrate binding, deprotonation, and selectivity at the periplasmic entrance of the Escherichia coli ammonia channel AmtB., Javelle A, Lupo D, Ripoche P, Fulford T, Merrick M, Winkler FK, Proc Natl Acad Sci U S A. 2008 Apr 1;105(13):5040-5. Epub 2008 Mar 24. PMID:18362341
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (61 Kb) [Save to disk]
  • Biological Unit Coordinates (3c1h.pdb1.gz) 163 Kb
  • LPC: Ligand-Protein Contacts for 3C1H
  • CSU: Contacts of Structural Units for 3C1H
  • Likely Quarternary Molecular Structure file(s) for 3C1H
  • Structure Factors (216 Kb)
  • Retrieve 3C1H in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 3C1H from S2C, [Save to disk]
  • Re-refined 3c1h structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
    • View 3C1H 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 3C1H
  • Ramachandran plot from PDBSum
    • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • 3D motif for 3C1H, from MSDmotif at EBI
    • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [3c1h_A] [3c1h]
  • 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 3C1H
  • Community annotation for 3C1H 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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