7UI1 | pdb_00007ui1

Deposited: 2022-03-28 Released: 2023-02-15
Deposition Author(s): Tang, W.K., Tolia, N.H.
Funding Organization(s): National Institutes of Health/National Institute Of Allergy and Infectious Diseases (NIH/NIAID)

Experimental Data Snapshot

Starting Model: experimental
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wwPDB Validation 3D Report Full Report

This is version 1.3 of the entry. See complete history.

(2023) Immunity 56: 433-443.e5

PubMed: 36792576 Search on PubMed Search on PubMed Central
DOI: https://doi.org/10.1016/j.immuni.2023.01.012
Primary Citation Related Structures:
7U9E, 7U9W, 7UA2, 7UA8, 7UBS, 7UC8, 7UCQ, 7UFW, 7UI1

PubMed Abstract:
Pfs230 domain 1 (Pfs230D1) is an advanced malaria transmission-blocking vaccine antigen demonstrating high functional activity in clinical trials. However, the structural and functional correlates of transmission-blocking activity are not defined. Here, we characterized a panel of human monoclonal antibodies (hmAbs) elicited in vaccinees immunized with Pfs230D1. These hmAbs exhibited diverse transmission-reducing activity, yet all bound to Pfs230D1 with nanomolar affinity. We compiled epitope-binning data for seventeen hmAbs and structures of nine hmAbs complexes to construct a high-resolution epitope map and revealed that potent transmission-reducing hmAbs bound to one face of Pfs230D1, while non-potent hmAbs bound to the opposing side. The structure of Pfs230D1D2 revealed that non-potent transmission-reducing epitopes were occluded by the second domain. The hmAb epitope map delineated binary hmAb combinations that synergized for extremely high-potency, transmission-reducing activity. This work provides a high-resolution guide for structure-based design of enhanced immunogens and informs diagnostics that measure the transmission-reducing response.

Organizational Affiliation

Host-Pathogen Interactions and Structural Vaccinology Section, Laboratory of Malaria Immunology and Vaccinology, National Institute of Allergy and Infectious Diseases, National Institutes of Health, Bethesda, MD, USA.

Macromolecule Content

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Gametocyte surface protein P230	A, C [auth B], E [auth C], G [auth D]	355	Plasmodium falciparum	Mutation(s): 0 Gene Names: PFS230, PF230, S230, PF3D7_0209000
UniProt
Find proteins for P68874 (Plasmodium falciparum (isolate 3D7)) Explore P68874 Go to UniProtKB: P68874
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P68874
Sequence Annotations Expand
Reference Sequence

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| 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
230AL-37	B [auth H], D [auth I], F [auth J], H [auth K]	257	Homo sapiens	Mutation(s): 0

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
SO4 Query on SO4 Download:Ideal Coordinates CCD File SDF format, chain M [auth K] SDF format, chain L [auth J] SDF format, chain K [auth H] SDF format, chain J [auth H] SDF format, chain I [auth A] MOL2 format, chain M [auth K] MOL2 format, chain L [auth J] MOL2 format, chain K [auth H] MOL2 format, chain J [auth H] MOL2 format, chain I [auth A] mmCIF format, chain M [auth K] mmCIF format, chain L [auth J] mmCIF format, chain K [auth H] mmCIF format, chain J [auth H] mmCIF format, chain I [auth A]	I [auth A], J [auth H], K [auth H], L [auth J], M [auth K]	SULFATE ION O₄ S QAOWNCQODCNURD-UHFFFAOYSA-L		Interactions Focus chain I [auth A] Focus chain J [auth H] Focus chain K [auth H] Focus chain L [auth J] Focus chain M [auth K] Interactions & Density Focus chain I [auth A] Focus chain J [auth H] Focus chain K [auth H] Focus chain L [auth J] Focus chain M [auth K]