MAIA, Fc receptor–like 3, supersedes JUNO as IZUMO1 receptor during human fertilization

Author:

Vondrakova Jana1ORCID,Frolikova Michaela1ORCID,Ded Lukas1ORCID,Cerny Jiri2ORCID,Postlerova Pavla13ORCID,Palenikova Veronika1,Simonik Ondrej1ORCID,Nahacka Zuzana4,Basus Krystof1ORCID,Valaskova Eliska1ORCID,Machan Radek5ORCID,Pacey Allan6ORCID,Holubcova Zuzana78ORCID,Koubek Pavel9,Ezrova Zuzana4ORCID,Park Soojin10ORCID,Liu Ruiwu11,Partha Raghavendran12ORCID,Clark Nathan13ORCID,Neuzil Jiri414,Ikawa Masahito10ORCID,Erickson Kent15ORCID,Lam Kit S.11ORCID,Moore Harry16ORCID,Komrskova Katerina117ORCID

Affiliation:

1. Laboratory of Reproductive Biology, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic.

2. Laboratory of Structural Bioinformatics of Proteins, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic.

3. Department of Veterinary Sciences, Faculty of Agrobiology, Food, and Natural Resources, Czech University of Life Sciences Prague, Kamycka 129, 165 00 Prague, Czech Republic.

4. Laboratory of Molecular Therapy, Institute of Biotechnology of the Czech Academy of Sciences, BIOCEV, Prumyslova 595, 252 50 Vestec, Czech Republic.

5. Imaging Methods Core Facility at BIOCEV, Faculty of Science, Charles University, Prumyslova 595, 252 50 Vestec, Czech Republic.

6. Department of Oncology and Metabolism, University of Sheffield, Medical School, Sheffield S10 2RX, UK.

7. Reprofit International, Clinic of Reproductive Medicine, Brno, Czech Republic.

8. Department of Histology and Embryology, Faculty of Medicine, Masaryk University, Brno, Czech Republic.

9. ProCrea Swiss IVF Center, Prague, Czech Republic.

10. Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.

11. Department of Biochemistry and Molecular Medicine, University of California, Davis, School of Medicine, Davis, CA, USA.

12. Department of Computational and Systems Biology, University of Pittsburgh, Pittsburgh, PA, USA.

13. Department of Human Genetics, University of Utah, Salt Lake City, UT, USA.

14. School of Pharmacy and Medical Science, Griffith University, Parklands Avenue, Southport, Qld 4222, Australia.

15. Department of Cell Biology and Human Anatomy, University of California, Davis, School of Medicine, Davis, CA, USA.

16. Centre for Stem Cell Biology, University of Sheffield, Sheffield S10 2TN, UK.

17. Department of Zoology, Faculty of Science, Charles University, Vinicna 7, 128 44 Prague, Czech Republic.

Abstract

Gamete fusion is a critical event of mammalian fertilization. A random one-bead one-compound combinatorial peptide library represented synthetic human egg mimics and identified a previously unidentified ligand as Fc receptor–like 3, named MAIA after the mythological goddess intertwined with JUNO. This immunoglobulin super family receptor was expressed on humanoolemmaand played a major role during sperm-egg adhesion and fusion. MAIA forms a highly stable interaction with the known IZUMO1/JUNO sperm-egg complex, permitting specific gamete fusion. The complexity of the MAIA isotype may offer a cryptic sexual selection mechanism to avoid genetic incompatibility and achieve favorable fitness outcomes.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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