The zona pellucida (Zp) genes are quintessential oocyte-specific genes that are transcribed only during oogenesis and whose protein products are secreted in the extracellular space. In mice the Zp genes are three: Zp1, Zp2, Zp3 (Zp4 is a pseudogene). Contrary to longtime knowledge, data from 2023 ha...
ORGANISM(S): Mus musculus