Glossary terms with N Breadcrumb Home Glossary Glossary A B C D E F G H I J K L M N O P Q R S T U V W X Y Z N Natural compound library A natural compound library is a collection of chemical substances, which can be used to screen for biological activities of choice. Natural compounds A natural compound is a substance produced by bacteria, animals, fungi or plants that fulfills a biological function. Natural killer cells Natural killer cells are lymphocytes belonging to the innate part of the immune system, that directly kill virus infected cells and tumor cells. Neglected Tropical Diseases Neglected Tropical Diseases are a group of poverty-related communicable diseases that occur in tropical and subtropical countries. Norovirus Noroviruses are single-stranded RNA viruses. The pathogens, which occur worldwide, are highly contagious. They are usually transmitted from person to person by smear infection and mainly cause gastrointestinal illnesses. Nucleocapsid A nucleocapsid is a viral structure unit composed of nucleic acids and attached proteins.
