ISDA

Deposition Date 2024-10-21

Release Date 2025-03-12

Last Version Date 2025-04-23

Entry Detail

PDB ID:

9H4R

Keywords:

CELL ADHESION

Title:

Structure of fertilization-blocking monoclonal antibody IE-3 VHVL bound to the ZP-N1 domain of mouse ZP2 (crystal form I)

Biological Source:

Source Organism:

Mus musculus (Taxon ID: 10090)
Rattus norvegicus (Taxon ID: 10116)

Host Organism:

Homo sapiens

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

1.53 Å

R-Value Free:

0.23

R-Value Work:

0.20

R-Value Observed:

0.20

Space Group:

P 21 21 21

Download Validation Report

Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Molecule:Zona pellucida sperm-binding protein 2
Gene (Uniprot):Zp2
Mutations:N83S
Chain IDs:A, D (auth: B)
Chain Length:112
Number of Molecules:2
Biological Source:Mus musculus

UniProt ID:P20239

Polymer Type:polypeptide(L)
Molecule:Heavy chain variable (VH) domain of anti-ZP2 monoclonal antibody IE-3
Chain IDs:B (auth: H), E (auth: X)
Chain Length:123
Number of Molecules:2
Biological Source:Rattus norvegicus

Polymer Type:polypeptide(L)
Molecule:Light chain variable (VL) domain of anti-ZP2 monoclonal antibody IE-3
Chain IDs:C (auth: L), F (auth: Y)
Chain Length:117
Number of Molecules:2
Biological Source:Rattus norvegicus

Primary Citation

Structural basis of ZP2-targeted female nonhormonal contraception.

Dioguardi, E, Stsiapanava, A, Fahrenkamp, E, Han, L, de Sanctis, D, Inzunza, J, Jovine, L, Bleil, J.D, Wassarman, P.M, Bleil, J.D, Beall, C.F, Wassarman, P.M, Greve, J.M, Salzmann, G.S, Roller, R.J, Wassarman, P.M, Liang, L.F, Chamow, S.M, Dean, J, Monne, M, Han, L, Schwend, T, Burendahl, S, Jovine, L, Avella, M.A, Baibakov, B, Dean, J, East, I.J, Gulyas, B.J, Dean, J, East, I.J, Mattison, D.R, Dean, J, Li, J, Olvera, A.I, Akbari, O.S, Moradian, A, Sweredoski, M.J, Hess, S, Hay, B.A, Sun, W, Lou, Y.H, Dean, J, Tung, K.S, Raj, I, Sadat Al Hosseini, H, Dioguardi, E, Nishimura, K, Han, L, Villa, A, de Sanctis, D, Jovine, L, Nishio, S, Emori, C, Wiseman, B, Fahrenkamp, D, Dioguardi, E, Zamora-Caballero, S, Bokhove, M, Han, L, Stsiapanava, A, Algarra, B, Lu, Y, Kodani, M, Bainbridge, R.E, Komondor, K.M, Carlson, A.E, Landreh, M, de Sanctis, D, Yasumasu, S, Ikawa, M, Jovine, L.Show

Proc.Natl.Acad.Sci.USA 122 e2426057122 e2426057122 (2025)

PMID: 40215272 DOI: 10.1073/pnas.2426057122

Abstact

Monoclonal antibody IE-3 prevents mouse fertilization by binding ZP2, a major component of the oocyte-specific zona pellucida (ZP). We show that an IE-3-derived single-chain variable fragment (scFV) is sufficient for blocking fertilization in vitro and determine the structural basis of IE-3/ZP2 recognition. The high affinity of this interaction depends on induced fit of the epitope, offering insights for nonhormonal contraceptive design without off-target effects.

Legend

Protein

Chemical

Disease

Primary Citation of related structures