Hemolin
![Hemolin from Hyalophora cecropia superimposed on neuroglian. Predicted differences between the proteins are highlighted in red. Made in Swiss Protein Database Viewer.](/Images/godic/202501/17/Hemolin_and_neuroglian_3D1748.png")
Hemolin is an immunoglobulin-like protein exclusively found in Lepidoptera (moths and butterflies). It was first discovered in immune-challenged pupae of Hyalophora cecropia and Manduca sexta.
Hemolin has a horseshoe crystal structure with four domains and resembles the developmental protein neuroglian.