8V12

plasmodium falciparum Niemann-Pick type C1-related protein form II

Summary for 8V12

• Entry DOI: 10.2210/pdb8v12/pdb
• EMDB information: 42878
• Descriptor: Niemann-Pick type C1-related protein, CHOLESTEROL, 2-acetamido-2-deoxy-beta-D-glucopyranose (3 entities in total)
• Functional Keywords: niemann-pick type c1-related protein, ncr1, cholesterol transporter, plasmodium falciparum, membrane protein
• Biological source: Plasmodium falciparum 3D7
• Total number of polymer chains: 1
• Total formula weight: 171113.27

Authors

Zhang, Z.,Lyu, M. (deposition date: 2023-11-19, release date: 2024-11-13, Last modification date: 2025-03-19)

Primary citation

Zhang, Z.,Lyu, M.,Han, X.,Bandara, S.,Cui, M.,Istvan, E.S.,Geng, X.,Tringides, M.L.,Gregor, W.D.,Miyagi, M.,Oberstaller, J.,Adams, J.H.,Zhang, Y.,Nieman, M.T.,von Lintig, J.,Goldberg, D.E.,Yu, E.W.
The Plasmodium falciparum NCR1 transporter is an antimalarial target that exports cholesterol from the parasite's plasma membrane.
Sci Adv, 10:eadq6651-eadq6651, 2024

PubMed Abstract: Malaria, a devastating parasitic infection, is the leading cause of death in many developing countries. Unfortunately, the most deadliest causative agent of malaria, , has developed resistance to nearly all currently available antimalarial drugs. The Niemann-Pick type C1-related (PfNCR1) transporter has been identified as a druggable target, but its structure and detailed molecular mechanism are not yet available. Here, we present three structures of PfNCR1 with and without the functional inhibitor MMV009108 at resolutions between 2.98 and 3.81 Å using single-particle cryo-electron microscopy (cryo-EM), suggesting that PfNCR1 binds cholesterol and forms a cholesterol transport tunnel to modulate the composition of the parasite plasma membrane. Cholesterol efflux assays show that PfNCR1 is an exporter capable of extruding cholesterol from the membrane. Additionally, the inhibition mechanism of MMV009108 appears to be due to a direct blockage of PfNCR1, preventing this transporter from shuttling cholesterol.

PubMed: 39693420
DOI: 10.1126/sciadv.adq6651

Experimental method

ELECTRON MICROSCOPY (3.81 Å)