6NXE

Cryo-EM Reconstruction of Protease-Activateable Adeno-Associated Virus 9 (AAV9-L001)


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.16 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Starting Model: experimental
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wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Protease-Activatable Adeno-Associated Virus Vector for Gene Delivery to Damaged Heart Tissue.

Guenther, C.M.Brun, M.J.Bennett, A.D.Ho, M.L.Chen, W.Zhu, B.Lam, M.Yamagami, M.Kwon, S.Bhattacharya, N.Sousa, D.Evans, A.C.Voss, J.Sevick-Muraca, E.M.Agbandje-McKenna, M.Suh, J.

(2019) Mol Ther 27: 611-622

  • DOI: https://doi.org/10.1016/j.ymthe.2019.01.015
  • Primary Citation of Related Structures:  
    6NXE

  • PubMed Abstract: 

    Adeno-associated virus (AAV) has emerged as a promising gene delivery vector because of its non-pathogenicity, simple structure and genome, and low immunogenicity compared to other viruses. However, its adoption as a safe and effective delivery vector for certain diseases relies on altering its tropism to deliver transgenes to desired cell populations. To this end, we have developed a protease-activatable AAV vector, named provector, that responds to elevated extracellular protease activity commonly found in diseased tissue microenvironments. The AAV9-based provector is initially inactive, but then it can be switched on by matrix metalloproteinases (MMP)-2 and -9. Cryo-electron microscopy and image reconstruction reveal that the provector capsid is structurally similar to that of AAV9, with a flexible peptide insertion at the top of the 3-fold protrusions. In an in vivo model of myocardial infarction (MI), the provector is able to deliver transgenes site specifically to high-MMP-activity regions of the damaged heart, with concomitant decreased delivery to many off-target organs, including the liver. The AAV provector may be useful in the future for enhanced delivery of transgenes to sites of cardiac damage.


  • Organizational Affiliation

    Department of Bioengineering, Rice University, 6100 Main St., Houston, TX 77005, USA.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Capsid protein VP1544Adeno-associated virusMutation(s): 0 
Gene Names: cap
UniProt
Find proteins for Q6JC22 (Adeno-associated virus)
Explore Q6JC22 
Go to UniProtKB:  Q6JC22
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupQ6JC22
Sequence Annotations
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.16 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)United StatesR21HL126053, R01HL138126, and R01CA207497

Revision History  (Full details and data files)

  • Version 1.0: 2019-03-13
    Type: Initial release
  • Version 1.1: 2019-03-20
    Changes: Data collection, Database references
  • Version 1.2: 2019-12-18
    Changes: Author supporting evidence
  • Version 1.3: 2024-03-20
    Changes: Data collection, Database references, Refinement description