Molecular basis of egg coat cross-linking sheds light on ZP1-associated female infertility.Nishimura, K., Dioguardi, E., Nishio, S., Villa, A., Han, L., Matsuda, T., Jovine, L.
(2019) Nat Commun 10: 3086-3086
- PubMed: 31300655
- DOI: 10.1038/s41467-019-10931-5
- Primary Citation of Related Structures:
6GF6, 6GF7, 6GF8
- PubMed Abstract:
- Mouse egg extracellular coat is a matrix of interconnected filaments possessing a structural repeat.
Greve, J.M., Wassarman, P.M.
(1985) J Mol Biol 181: 253
- Abnormal zonae pellucidae in mice lacking ZP1 result in early embryonic loss.
Rankin, T., Talbot, P., Lee, E., Dean, J.
(1999) Development 126: 3847
- Morphological and biochemical changes of isolated chicken egg-envelope during sperm penetration: degradation of the 97-kilodalton glycoprotein is involved in sperm-driven hole formation on the egg-envelope.
Takeuchi, Y., Cho, R., Iwata, Y., Nishimura, K., Kato, T., Aoki, N., Kitajima, K., Matsuda, T.
(2001) Biol Reprod 64: 822
- A newly identified zona pellucida glycoprotein, ZPD, and dimeric ZP1 of chicken egg envelope are involved in sperm activation on sperm-egg interaction.
Okumura, H., Kohno, Y., Iwata, Y., Mori, H., Aoki, N., Sato, C., Kitajima, K., Nadano, D., Matsuda, T.
(2004) Biochem J 384: 191
- Mutant ZP1 in familial infertility.
Huang, H.L., Lv, C., Zhao, Y.C., Li, W., He, X.M., Li, P., Sha, A.G., Tian, X., Papasian, C.J., Deng, H.W., Lu, G.X., Xiao, H.M.
(2014) N Engl J Med 370: 1220
- Identification of distinctive interdomain interactions among ZP-N, ZP-C and other domains of zona pellucida glycoproteins underlying association of chicken egg-coat matrix.
Okumura, H., Sato, T., Sakuma, R., Fukushima, H., Matsuda, T., Ujita, M.
(2015) FEBS Open Bio 5: 454
Mammalian fertilisation begins when sperm interacts with the egg zona pellucida (ZP), whose ZP1 subunit is important for fertility by covalently cross-linking ZP filaments into a three-dimensional matrix. Like ZP4, a structurally-related component absent in the mouse, ZP1 is predicted to contain an N-terminal ZP-N domain of unknown function ...
Mammalian fertilisation begins when sperm interacts with the egg zona pellucida (ZP), whose ZP1 subunit is important for fertility by covalently cross-linking ZP filaments into a three-dimensional matrix. Like ZP4, a structurally-related component absent in the mouse, ZP1 is predicted to contain an N-terminal ZP-N domain of unknown function. Here we report a characterisation of ZP1 proteins carrying mutations from infertile patients, which suggests that, in human, filament cross-linking by ZP1 is crucial to form a stable ZP. We map the function of ZP1 to its ZP-N1 domain and determine crystal structures of ZP-N1 homodimers from a chicken homolog of ZP1. These reveal that ZP filament cross-linking is highly plastic and can be modulated by ZP1 fucosylation and, potentially, zinc sparks. Moreover, we show that ZP4 ZP-N1 forms non-covalent homodimers in chicken but not in human. Together, these data identify human ZP1 cross-links as a promising target for non-hormonal contraception.
Department of Biosciences and Nutrition and Center for Innovative Medicine, Karolinska Institutet, Huddinge, SE-141 83, Sweden. firstname.lastname@example.org.