6LVF

Cryo-EM structure of the multiple peptide resistance factor (MprF) loaded with one lysyl-phosphatidylglycerol molecule


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Phospholipid translocation captured in a bifunctional membrane protein MprF.

Song, D.Jiao, H.Liu, Z.

(2021) Nat Commun 12: 2927-2927

  • DOI: https://doi.org/10.1038/s41467-021-23248-z
  • Primary Citation of Related Structures:  
    6LV0, 6LVF, 7DUW

  • PubMed Abstract: 

    As a large family of membrane proteins crucial for bacterial physiology and virulence, the Multiple Peptide Resistance Factors (MprFs) utilize two separate domains to synthesize and translocate aminoacyl phospholipids to the outer leaflets of bacterial membranes. The function of MprFs enables Staphylococcus aureus and other pathogenic bacteria to acquire resistance to daptomycin and cationic antimicrobial peptides. Here we present cryo-electron microscopy structures of MprF homodimer from Rhizobium tropici (RtMprF) at two different states in complex with lysyl-phosphatidylglycerol (LysPG). RtMprF contains a membrane-embedded lipid-flippase domain with two deep cavities opening toward the inner and outer leaflets of the membrane respectively. Intriguingly, a hook-shaped LysPG molecule is trapped inside the inner cavity with its head group bent toward the outer cavity which hosts a second phospholipid-binding site. Moreover, RtMprF exhibits multiple conformational states with the synthase domain adopting distinct positions relative to the flippase domain. Our results provide a detailed framework for understanding the mechanisms of MprF-mediated modification and translocation of phospholipids.


  • Organizational Affiliation

    National Laboratory of Biomacromolecules, CAS Center for Excellence in Biomacromolecules, Institute of Biophysics, Chinese Academy of Sciences, Beijing, PR China.


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
Low pH-inducible protein LpiAA [auth B],
B [auth A]
882Rhizobium tropici CIAT 899Mutation(s): 0 
Gene Names: lpiARTCIAT899_CH14740
Membrane Entity: Yes 
UniProt
Find proteins for A0A6P1C618 (Rhizobium tropici)
Explore A0A6P1C618 
Go to UniProtKB:  A0A6P1C618
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupA0A6P1C618
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 3 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
EV9 (Subject of Investigation/LOI)
Query on EV9

Download Ideal Coordinates CCD File 
C [auth B],
F [auth A]
[(2~{R})-3-[[(2~{S})-3-[(2~{S})-2,6-bis(azanyl)hexanoyl]oxy-2-oxidanyl-propoxy]-oxidanyl-phosphoryl]oxy-2-hexadecanoyloxy-propyl] hexadecanoate
C44 H87 N2 O11 P
IKYFVWXVCARWQS-HMVVSKLPSA-N
PGT
Query on PGT

Download Ideal Coordinates CCD File 
E [auth B],
H [auth A]
(1S)-2-{[{[(2R)-2,3-DIHYDROXYPROPYL]OXY}(HYDROXY)PHOSPHORYL]OXY}-1-[(PALMITOYLOXY)METHYL]ETHYL STEARATE
C40 H79 O10 P
KBPVYRBBONZJHF-AMAPPZPBSA-N
LHG
Query on LHG

Download Ideal Coordinates CCD File 
D [auth B],
G [auth A]
1,2-DIPALMITOYL-PHOSPHATIDYL-GLYCEROLE
C38 H75 O10 P
BIABMEZBCHDPBV-MPQUPPDSSA-N
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.70 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
EM Software:
TaskSoftware PackageVersion
MODEL REFINEMENTPHENIX
RECONSTRUCTIONRELION3.0

Structure Validation

View Full Validation Report



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
National Natural Science Foundation of China (NSFC)China31670749
National Natural Science Foundation of China (NSFC)China31925024
Chinese Academy of SciencesChinaZDBS-LY-SM003-02; XDB08020302

Revision History  (Full details and data files)

  • Version 1.0: 2021-02-03
    Type: Initial release
  • Version 1.1: 2021-04-14
    Changes: Structure summary
  • Version 1.2: 2021-08-18
    Changes: Database references
  • Version 1.3: 2024-05-29
    Changes: Data collection