Protamines (PRM1 and PRM2) are small. arginine-rich. nuclear proteins that replace histones in the final stages of spermiogenesis. ensuring chromatin compaction and nuclear remodeling. https://www.eleanorscholz.com/product-category/food-servicecommercial-kitchen-equipmentfood-preparation-equipmentother-commercial-food-prep-industrialrestaurant-business-2/