6N06

Cryo-EM structure of the HO BMC shell: BMC-T1 in the assembled shell


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Starting Models: experimental
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This is version 1.3 of the entry. See complete history


Literature

The Plasticity of Molecular Interactions Governs Bacterial Microcompartment Shell Assembly.

Greber, B.J.Sutter, M.Kerfeld, C.A.

(2019) Structure 27: 749

  • DOI: https://doi.org/10.1016/j.str.2019.01.017
  • Primary Citation of Related Structures:  
    6MZU, 6MZV, 6MZX, 6MZY, 6N06, 6N07, 6N09, 6N0F, 6N0G

  • PubMed Abstract: 

    Bacterial microcompartments (BMCs) are composed of an enzymatic core encapsulated by a selectively permeable protein shell that enhances catalytic efficiency. Many pathogenic bacteria derive competitive advantages from their BMC-based catabolism, implicating BMCs as drug targets. BMC shells are of interest for bioengineering due to their diverse and selective permeability properties and because they self-assemble. A complete understanding of shell composition and organization is a prerequisite for biotechnological applications. Here, we report the cryoelectron microscopy structure of a BMC shell at 3.0-Å resolution, using an image-processing strategy that allowed us to determine the previously uncharacterized structural details of the interactions formed by the BMC-T S and BMC-T D shell subunits in the context of the assembled shell. We found unexpected structural plasticity among these interactions, resulting in distinct shell populations assembled from varying numbers of the BMC-T S and BMC-T D subunits. We discuss the implications of these findings on shell assembly and function.


  • Organizational Affiliation

    California Institute for Quantitative Biosciences (QB3), University of California, Berkeley, CA 94720, USA; Molecular Biophysics and Integrative Bioimaging Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Microcompartments protein
A, B, C
205Haliangium ochraceum DSM 14365Mutation(s): 0 
Gene Names: Hoch_5812
UniProt
Find proteins for D0LHE3 (Haliangium ochraceum (strain DSM 14365 / JCM 11303 / SMP-2))
Explore D0LHE3 
Go to UniProtKB:  D0LHE3
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupD0LHE3
Sequence Annotations
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  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
Microcompartments protein99Haliangium ochraceum DSM 14365Mutation(s): 0 
Gene Names: Hoch_5815
UniProt
Find proteins for D0LID5 (Haliangium ochraceum (strain DSM 14365 / JCM 11303 / SMP-2))
Explore D0LID5 
Go to UniProtKB:  D0LID5
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupD0LID5
Sequence Annotations
Expand
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.40 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX
RECONSTRUCTIONRELION1.4

Structure Validation

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Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)United States5 R01 AI114975-05
Department of Energy (DOE, United States)United StatesDE-FG02-91ER20021

Revision History  (Full details and data files)

  • Version 1.0: 2019-03-13
    Type: Initial release
  • Version 1.1: 2019-05-22
    Changes: Data collection, Database references
  • Version 1.2: 2019-12-04
    Changes: Author supporting evidence
  • Version 1.3: 2024-03-13
    Changes: Data collection, Database references, Refinement description