8PBX

Single particle cryo-EM of the P140-P110 heterodimer of Mycoplasma genitalium at 3.3 Angstrom resolution.


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Starting Models: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Cryo-electron tomography reveals the binding and release states of the major adhesion complex from Mycoplasma genitalium.

Sprankel, L.Scheffer, M.P.Manger, S.Ermel, U.H.Frangakis, A.S.

(2023) PLoS Pathog 19: e1011761-e1011761

  • DOI: https://doi.org/10.1371/journal.ppat.1011761
  • Primary Citation of Related Structures:  
    8PBX, 8PBY, 8PBZ, 8PC0, 8PC1

  • PubMed Abstract: 

    The nap particle is an immunogenic surface adhesion complex from Mycoplasma genitalium. It is essential for motility and responsible for binding sialylated oligosaccharides on the surface of the host cell. The nap particle is composed of two P140-P110 heterodimers, the structure of which was recently solved. However, the interpretation of the mechanism by which the mycoplasma cells orchestrate adhesion remained challenging. Here, we provide cryo-electron tomography structures at ~11 Å resolution, which allow for the distinction between the bound and released state of the nap particle, displaying the in vivo conformational states. Fitting of the atomically resolved structures reveals that bound sialylated oligosaccharides are stabilized by both P110 and P140. Movement of the stalk domains allows for the transfer of conformational changes from the interior of the cell to the binding pocket, thus having the capability of an active release process. It is likely that the same mechanism can be transferred to other Mycoplasma species that belong to the pneumoniae cluster.


  • Organizational Affiliation

    Buchmann Institute for Molecular Life Sciences and Institute of Biophysics, Goethe University Frankfurt, Frankfurt, Germany.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Mgp-operon protein 31,059Mycoplasmoides genitalium G37Mutation(s): 0 
Gene Names: MG192
UniProt
Find proteins for P22747 (Mycoplasma genitalium (strain ATCC 33530 / DSM 19775 / NCTC 10195 / G37))
Explore P22747 
Go to UniProtKB:  P22747
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP22747
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Adhesin P11,444Mycoplasmoides genitalium G37Mutation(s): 0 
UniProt
Find proteins for P20796 (Mycoplasma genitalium (strain ATCC 33530 / DSM 19775 / NCTC 10195 / G37))
Explore P20796 
Go to UniProtKB:  P20796
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP20796
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.30 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX
RECONSTRUCTIONcryoSPARC3.3.2

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
German Research Foundation (DFG)GermanyFR 1653/6-3
German Research Foundation (DFG)GermanyGRK 2566/1

Revision History  (Full details and data files)

  • Version 1.0: 2023-11-01
    Type: Initial release
  • Version 1.1: 2023-11-22
    Changes: Database references