Study reveals proteins on sperm act as key for egg fusion

A new study reveals how sperm and egg cells fuse, functioning like a lock and key. Researchers identified three proteins on sperm that form a key, allowing it to attach to the egg. This mechanism is fundamental across vertebrates. Using AI from Google DeepMind, scientists discovered a previously unknown protein that aids the initial connection between sperm and egg. This research builds on earlier knowledge of two proteins involved in the process. The study may enhance understanding of infertility and aid in developing male contraceptives. Researchers aim to explore how sperm enters the egg after attachment in future studies.