Immature HIV-1 matrix structure

Experimental Data Snapshot

  • Resolution: 7.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SUBTOMOGRAM AVERAGING 

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Maturation of the matrix and viral membrane of HIV-1.

Qu, K.Ke, Z.Zila, V.Anders-Osswein, M.Glass, B.Mucksch, F.Muller, R.Schultz, C.Muller, B.Krausslich, H.G.Briggs, J.A.G.

(2021) Science 373: 700-704

  • DOI: https://doi.org/10.1126/science.abe6821
  • Primary Citation of Related Structures:  
    7OVQ, 7OVR

  • PubMed Abstract: 

    Gag, the primary structural protein of HIV-1, is recruited to the plasma membrane for virus assembly by its matrix (MA) domain. Gag is subsequently cleaved into its component domains, causing structural maturation to repurpose the virion for cell entry. We determined the structure and arrangement of MA within immature and mature HIV-1 through cryo-electron tomography. We found that MA rearranges between two different hexameric lattices upon maturation. In mature HIV-1, a lipid extends out of the membrane to bind with a pocket in MA. Our data suggest that proteolytic maturation of HIV-1 not only assembles the viral capsid surrounding the genome but also repurposes the membrane-bound MA lattice for an entry or postentry function and results in the partial removal of up to 2500 lipids from the viral membrane.

  • Organizational Affiliation

    Department of Chemical Physiology and Biochemistry, Oregon Health & Science University, Portland, OR 97239, USA.

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Gag polyprotein115Human immunodeficiency virus 1Mutation(s): 0 
Gene Names: gag
Find proteins for P12493 (Human immunodeficiency virus type 1 group M subtype B (isolate NY5))
Explore P12493 
Go to UniProtKB:  P12493
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP12493
Sequence Annotations
  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
MYR (Subject of Investigation/LOI)
Query on MYR

Download Ideal Coordinates CCD File 
AA [auth C]
BA [auth D]
CA [auth P]
DA [auth b]
EA [auth E]
AA [auth C],
BA [auth D],
CA [auth P],
DA [auth b],
EA [auth E],
FA [auth Q],
GA [auth c],
HA [auth F],
IA [auth R],
JA [auth d],
KA [auth S],
LA [auth f],
MA [auth I],
NA [auth h],
OA [auth K],
PA [auth X],
QA [auth M],
RA [auth Y],
SA [auth Z],
TA [auth l],
UA [auth O],
VA [auth m],
Y [auth A],
Z [auth B]
C14 H28 O2
Experimental Data & Validation

Experimental Data

  • Resolution: 7.20 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SUBTOMOGRAM AVERAGING 
EM Software:
TaskSoftware PackageVersion

Structure Validation

View Full Validation Report

Entry History & Funding Information

Deposition Data

Funding OrganizationLocationGrant Number
European Research Council (ERC)GermanyERC-CoG-648432 MEMBRANEFUSION
Medical Research Council (MRC, United Kingdom)GermanyMC_UP_1201/16
German Research Foundation (DFG)Germany112927078 - TRR 83
German Research Foundation (DFG)Germany240245660 - SFB1129 project 5
German Research Foundation (DFG)GermanyMU885-1
German Research Foundation (DFG)Germany240245660 - SFB1129 project 6
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)GermanyR01GM127631
German Research Foundation (DFG)Germany278001972 - TRR186 project Z1

Revision History  (Full details and data files)

  • Version 1.0: 2021-08-18
    Type: Initial release