News Health & Medicine Fine-scale structure of egg crucial for fertility The shape of a protein that forms a key coating on an egg provides an atomic view of conception By Laura Sanders December 3, 2008 at 1:14 pm - More than 2 years ago Share this:Share Share via email (Opens in new window) Email Share on Facebook (Opens in new window) Facebook Share on Reddit (Opens in new window) Reddit Share on X (Opens in new window) X Print (Opens in new window) Print If fertility had a shape, this would be it. EGG UP CLOSE Ridges of proteins coat the outside of a human egg and aid in fertilization. New structural analyses shed light on this process. P.