3JC9

Architectural model of the type IVa pilus machine in a non-piliated state


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Aggregation State: PARTICLE 
  • Reconstruction Method: TOMOGRAPHY 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Architecture of the type IVa pilus machine.

Chang, Y.W.Rettberg, L.A.Treuner-Lange, A.Iwasa, J.Sgaard-Andersen, L.Jensen, G.J.

(2016) Science 351: aad2001-aad2001

  • DOI: 10.1126/science.aad2001
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Type IVa pili are filamentous cell surface structures observed in many bacteria. They pull cells forward by extending, adhering to surfaces, and then retracting. We used cryo-electron tomography of intact Myxococcus xanthus cells to visualize type IV ...

    Type IVa pili are filamentous cell surface structures observed in many bacteria. They pull cells forward by extending, adhering to surfaces, and then retracting. We used cryo-electron tomography of intact Myxococcus xanthus cells to visualize type IVa pili and the protein machine that assembles and retracts them (the type IVa pilus machine, or T4PM) in situ, in both the piliated and nonpiliated states, at a resolution of 3 to 4 nanometers. We found that T4PM comprises an outer membrane pore, four interconnected ring structures in the periplasm and cytoplasm, a cytoplasmic disc and dome, and a periplasmic stem. By systematically imaging mutants lacking defined T4PM proteins or with individual proteins fused to tags, we mapped the locations of all 10 T4PM core components and the minor pilins, thereby providing insights into pilus assembly, structure, and function.


    Organizational Affiliation

    California Institute of Technology, Pasadena, CA 91125, USA. Howard Hughes Medical Institute, Pasadena, CA 91125, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PilA
Aa, Ab, Ac, Ad, Ae
158N/AMutation(s): 0 
Protein Feature View is not available: No corresponding UniProt sequence found.
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
PilC
Ca, Cb
417Myxococcus xanthus (strain DK 1622)Mutation(s): 0 
Gene Names: pilC
Find proteins for Q1D0A0 (Myxococcus xanthus (strain DK 1622))
Go to UniProtKB:  Q1D0A0
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
PilN
Na, Nb, Nc, Nd, Ne, Nf, Ng, Nh, Ni, Nj, Nk, Nl
225Myxococcus xanthus (strain DK 1622)Mutation(s): 0 
Gene Names: pilN
Find proteins for Q306N5 (Myxococcus xanthus (strain DK 1622))
Go to UniProtKB:  Q306N5
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
PilO
Oa, Ob, Oc, Od, Oe, Of, Og, Oh, Oi, Oj, Ok, Ol
205Myxococcus xanthus (strain DK 1622)Mutation(s): 0 
Gene Names: pilO
Find proteins for Q306N4 (Myxococcus xanthus (strain DK 1622))
Go to UniProtKB:  Q306N4
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
PilM
Ma, Mb, Mc, Md, Me, Mf, Mg, Mh, Mi, Mj, Mk, Ml
395Myxococcus xanthus (strain DK 1622)Mutation(s): 0 
Gene Names: pilM
Find proteins for Q1D0B0 (Myxococcus xanthus (strain DK 1622))
Go to UniProtKB:  Q1D0B0
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
PilQ
Qa, Qb, Qc, Qd, Qe, Qf, Qg, Qh, Qi, Qj, Qk, Ql
901Myxococcus xanthus (strain DK 1622)Mutation(s): 0 
Gene Names: pilQ
Find proteins for Q9ZFG1 (Myxococcus xanthus (strain DK 1622))
Go to UniProtKB:  Q9ZFG1
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
PilP
Pa, Pb, Pc, Pd, Pe, Pf, Pg, Ph, Pi, Pj, Pk, Pl
172Myxococcus xanthus (strain DK 1622)Mutation(s): 0 
Gene Names: pilP
Find proteins for Q306N3 (Myxococcus xanthus (strain DK 1622))
Go to UniProtKB:  Q306N3
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
TsaP
Ta, Tb, Tc, Td, Te, Tf, Tg, Th, Ti, Tj, Tk, Tl
411Myxococcus xanthus (strain DK 1622)Mutation(s): 0 
Find proteins for Q1D813 (Myxococcus xanthus (strain DK 1622))
Go to UniProtKB:  Q1D813
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ATP
Query on ATP

Download SDF File 
Download CCD File 
Ma, Mb, Mc, Md, Me, Mf, Mg, Mh, Mi, Mj, Mk, Ml
ADENOSINE-5'-TRIPHOSPHATE
C10 H16 N5 O13 P3
ZKHQWZAMYRWXGA-KQYNXXCUSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
Ma, Mb, Mc, Md, Me, Mf, Mg, Mh, Mi, Mj, Mk, Ml
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Modified Residues  1 Unique
IDChainsTypeFormula2D DiagramParent
MEA
Query on MEA
Aa, Ab, Ac, Ad, Ae
L-PEPTIDE LINKINGC10 H13 N O2PHE
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Aggregation State: PARTICLE 
  • Reconstruction Method: TOMOGRAPHY 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2016-03-16
    Type: Initial release
  • Version 1.1: 2016-03-23
    Type: Database references