5UMD

Structure of the Plasmodium falciparum 80S ribosome bound to the antimalarial drug mefloquine


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.2 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

Mefloquine targets the Plasmodium falciparum 80S ribosome to inhibit protein synthesis.

Wong, W.Bai, X.C.Sleebs, B.E.Triglia, T.Brown, A.Thompson, J.K.Jackson, K.E.Hanssen, E.Marapana, D.S.Fernandez, I.S.Ralph, S.A.Cowman, A.F.Scheres, S.H.Baum, J.

(2017) Nat Microbiol 2: 17031-17031

  • DOI: 10.1038/nmicrobiol.2017.31

  • PubMed Abstract: 
  • Malaria control is heavily dependent on chemotherapeutic agents for disease prevention and drug treatment. Defining the mechanism of action for licensed drugs, for which no target is characterized, is critical to the development of their second-gener ...

    Malaria control is heavily dependent on chemotherapeutic agents for disease prevention and drug treatment. Defining the mechanism of action for licensed drugs, for which no target is characterized, is critical to the development of their second-generation derivatives to improve drug potency towards inhibition of their molecular targets. Mefloquine is a widely used antimalarial without a known mode of action. Here, we demonstrate that mefloquine is a protein synthesis inhibitor. We solved a 3.2 Å cryo-electron microscopy structure of the Plasmodium falciparum 80S ribosome with the (+)-mefloquine enantiomer bound to the ribosome GTPase-associated centre. Mutagenesis of mefloquine-binding residues generates parasites with increased resistance, confirming the parasite-killing mechanism. Furthermore, structure-guided derivatives with an altered piperidine group, predicted to improve binding, show enhanced parasiticidal effect. These data reveal one possible mode of action for mefloquine and demonstrate the vast potential of cryo-electron microscopy to guide the development of mefloquine derivatives to inhibit parasite protein synthesis.


    Organizational Affiliation

    Department of Medical Biology, University of Melbourne, Parkville, Victoria, 3010, Australia.,Walter and Eliza Hall Institute of Medical Research, Parkville, Victoria, 3052, Australia.,MRC Laboratory of Molecular Biology, Cambridge Biomedical Campus, Cambridge CB2 0QH, UK.,Department of Life Sciences, Imperial College London, South Kensington, London, SW7 2AZ, UK.,Bio21 Molecular Science and Biotechnology Institute, University of Melbourne, Parkville, Victoria 3010, Australia.




Macromolecules

Find similar proteins by: Sequence  |  Structure


Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L2
D
260Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8I3T9 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8I3T9
Entity ID: 5
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L3
E
386Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IJC6 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IJC6
Entity ID: 6
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L4
F
411Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8I431 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8I431
Entity ID: 7
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L11a, putative
G
173Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IBQ6 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IBQ6
Entity ID: 8
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L6, putative
H
190Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IE85 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IE85
Entity ID: 9
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L6-2, putative
I
221Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IDV1 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IDV1
Entity ID: 10
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L7-3, putative
J
283Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8ILL2 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8ILL2
Entity ID: 11
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L13, putative
K
202Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IJZ7 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IJZ7
Entity ID: 12
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L13
L
215Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IAX6 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IAX6
Entity ID: 13
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L23, putative
M
139Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IE09 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IE09
Entity ID: 14
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L14, putative
N
165Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8ILE8 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8ILE8
Entity ID: 15
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L27a, putative
O
148Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for C6KT23 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  C6KT23
Entity ID: 16
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein L15
P
205Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for C0H4A6 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  C0H4A6
Entity ID: 17
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L10, putative
Q
219Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8ILV2 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8ILV2
Entity ID: 18
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L5, putative
R
294Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8ILL3 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8ILL3
Entity ID: 19
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L18-2, putative
S
187Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for C0H5G3 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  C0H5G3
Entity ID: 20
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L19
T
182Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for C6KSY6 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  C6KSY6
Entity ID: 21
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L18a
U
184Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IDS6 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IDS6
Entity ID: 22
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L21
V
161Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8ILK3 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8ILK3
Entity ID: 23
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L17, putative
W
203Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IDI5 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IDI5
Entity ID: 24
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L22, putative
X
139Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IB51 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IB51
Entity ID: 25
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L23
Y
190Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IE82 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IE82
Entity ID: 26
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L26, putative
Z
126Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for O77364 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  O77364
Entity ID: 27
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L24, putative
0
162Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IEM3 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IEM3
Entity ID: 28
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L27
1
146Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IKM5 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IKM5
Entity ID: 29
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L28
2
127Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IHU0 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IHU0
Entity ID: 30
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L35, putative
3
124Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IIB4 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IIB4
Entity ID: 31
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L29, putative
4
67Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for C6S3J6 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  C6S3J6
Entity ID: 32
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L7, putative
5
257Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for O97250 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  O97250
Entity ID: 33
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L30e, putative
6
108Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IJK8 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IJK8
Entity ID: 34
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L31
7
120Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8I463 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8I463
Entity ID: 35
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L32
8
131Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8I3B0 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8I3B0
Entity ID: 36
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L35Ae, putative
9
140Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IHT9 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IHT9
Entity ID: 37
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L34
a
150Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8IBY4 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8IBY4
Entity ID: 38
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L36
b
112Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8I713 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8I713
Entity ID: 39
MoleculeChainsSequence LengthOrganismDetails
Ribosomal protein L37
c
92Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for C0H4L5 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  C0H4L5
Entity ID: 40
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L38
d
87Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8II62 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8II62
Entity ID: 41
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L39
e
51Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for C0H4H3 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  C0H4H3
Entity ID: 42
MoleculeChainsSequence LengthOrganismDetails
Ubiquitin-60S ribosomal protein L40
f
128Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for Q8ID50 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  Q8ID50
Entity ID: 43
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L41
g
39Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Find proteins for C6S3G4 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  C6S3G4
Entity ID: 44
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L37a
h
96Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Gene Names: RPL37A
Find proteins for O96184 (Plasmodium falciparum (isolate 3D7))
Go to Gene View: RPL37A
Go to UniProtKB:  O96184
Entity ID: 45
MoleculeChainsSequence LengthOrganismDetails
60S ribosomal protein L44
i
104Plasmodium falciparum (isolate 3D7)Mutation(s): 0 
Gene Names: RPL44
Find proteins for O97231 (Plasmodium falciparum (isolate 3D7))
Go to UniProtKB:  O97231
Entity ID: 1
MoleculeChainsLengthOrganism
28S ribosomal RNAA3788Plasmodium falciparum 3D7
Entity ID: 2
MoleculeChainsLengthOrganism
5S ribosomal RNAB119Plasmodium falciparum 3D7
Entity ID: 3
MoleculeChainsLengthOrganism
5.8S ribosomal RNAC159Plasmodium falciparum 3D7
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
ZN
Query on ZN

Download SDF File 
Download CCD File 
a, c, f, h, i
ZINC ION
Zn
PTFCDOFLOPIGGS-UHFFFAOYSA-N
 Ligand Interaction
YMZ
Query on YMZ

Download SDF File 
Download CCD File 
A, K
Mefloquine
C17 H16 F6 N2 O
XEEQGYMUWCZPDN-SWLSCSKDSA-N
 Ligand Interaction
MG
Query on MG

Download SDF File 
Download CCD File 
A, B, C, M
MAGNESIUM ION
Mg
JLVVSXFLKOJNIY-UHFFFAOYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 3.2 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 
Software Package:
Software NamePurpose
REFMACrefinement

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History & Funding Information

Deposition Data


Funding OrganizationLocationGrant Number
NHMRCAustraliaAPP1024678
NHMRCAustraliaAPP1053801
Medical Research Council (United Kingdom)United KingdomMC_UP_A025_1013
Medical Research Council (United Kingdom)United KingdomMC_U105184332
Wellcome TrustUnited KingdomWT096570
Wellcome TrustUnited Kingdom100993/Z/13/Z
Human Frontier Science ProgramUnited KingdomRGY0071/2011
Department of Industry, Innovation, Science, Research and Tertiary Education, Australian Government|Australian Research CouncilAustraliaFT100100112

Revision History 

  • Version 1.0: 2017-03-01
    Type: Initial release
  • Version 1.1: 2017-03-22
    Type: Database references
  • Version 1.2: 2017-08-30
    Type: Author supporting evidence, Data collection
  • Version 1.3: 2018-10-17
    Type: Data collection, Refinement description