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

MAIA, Fc receptor-like 3, supersedes JUNO as IZUMO1 receptor during human fertilization.
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DOI:
10.1126/sciadv.abn0047
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发表时间:
2022-09-09
期刊:
影响因子:
13.6
通讯作者:
--
中科院分区:
综合性期刊1区
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--
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配子融合是哺乳动物受精的重要过程。一个随机的单头单化合物组合肽库代表了合成的人类卵子模拟物,并确定了一个先前未识别的配体Fc受体样3,以与JUNO交织在一起的神话女神命名为MAIA。该免疫球蛋白超家族受体在人卵膜上表达,在精卵粘附和融合过程中起重要作用。MAIA与已知的IZUMO1/JUNO精卵复合物形成高度稳定的相互作用,允许特定的配子融合。MAIA同型的复杂性可能提供了一种隐性选择机制,以避免遗传不相容并获得有利的适应性结果。MAIA, Fc受体样3,是一个重要的人类卵子受体,在受精过程中引起配子融合的紧密膜粘附。
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 human oolemma and 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. MAIA, Fc receptor–like 3, is a crucial human egg receptor to elicit tight membrane adhesion for gamete fusion at fertilization.
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