Ebulin from dwarf elder (Sambucus ebulus L.): a mini-review.
Sambucus ebulus L. (dwarf elder) is a medicinal plant, the usefulness of which also as food is restricted due to its toxicity. In the last few years, both the chemistry and pharmacology of Sambucus ebulus L. have been investigated. Among the structural and functional proteins present in the plant, sugar-binding proteins (lectins) with or without anti-ribosomal activity and single chain ribosome-inactivating proteins (RIPs) have been isolated. RIPs are enzymes (E.C. 3.2.2.22) that display N-glycosidase activity on the 28S rRNA subunit, leading to the inhibition of protein synthesis by arresting the step of polypeptide chain elongation. The biological role of all these proteins is as yet unknown. The evidence suggests that they could be involved in the defense of the plant against predators and viruses or/and a nitrogen store, with an impact on the nutritional characteristics and food safety. In this mini-review we describe all the isoforms of ebulin that have to date been isolated from dwarf elder, as well as their functional characteristics and potential uses, whilst highlighting concern regarding ebulin toxicity.
Nutrition and Food Science, Faculty of Medicine, and CINAD (Center for Research in Nutrition, Food and Dietetics), University of Valladolid, Valladolid E-47005, Spain. pilarj@bio.uva.es.
Pilar
P
Jiménez
Nutrition and Food Science, Faculty of Medicine, and CINAD (Center for Research in Nutrition, Food and Dietetics), University of Valladolid, Valladolid E-47005, Spain. jesus.tejero@uva.es.
Jesús
J
Tejero
Pharmacy and Pharmaceutical Technology, Faculty of Pharmacy, and IUFI (Institute of Industrial Pharmacy), Complutense University of Madrid, Madrid E-28040, Spain. damianco@farm.ucm.es.
Damián
D
Cordoba-Diaz
Nutrition and Food Science, Faculty of Medicine, and CINAD (Center for Research in Nutrition, Food and Dietetics), University of Valladolid, Valladolid E-47005, Spain. equinto@ped.uva.es.
Emiliano J
EJ
Quinto
Cell Biology, Histology and Pharmacology, Faculty of Medicine, and INCYL (Institute of Neurosciences of Castile and Leon), University of Valladolid, Valladolid E-47005, Spain. gayoso@med.uva.es.
Manuel
M
Garrosa
Cell Biology, Histology and Pharmacology, Faculty of Medicine, and INCYL (Institute of Neurosciences of Castile and Leon), University of Valladolid, Valladolid E-47005, Spain. gayoso@med.uva.es.
Manuel J
MJ
Gayoso
Nutrition and Food Science, Faculty of Medicine, and CINAD (Center for Research in Nutrition, Food and Dietetics), University of Valladolid, Valladolid E-47005, Spain. girbes@bio.uva.es.
Tomás
T
Girbés
D003001:Cloning, Molecular; D037102:Lectins / Q000737:chemistry / Q000302:isolation & purification; D010946:Plants, Medicinal / Q000737:chemistry; D014176:Protein Biosynthesis; D012339:RNA, Ribosomal, 28S / Q000235:genetics; D054790:Ribosome Inactivating Proteins, Type 2 / Q000737:chemistry* / Q000302:isolation & purification; D027923:Sambucus / Q000737:chemistry*
D037102:Lectins; D012339:RNA, Ribosomal, 28S; D054790:Ribosome Inactivating Proteins, Type 2; C511932:ebulin 1 protein, Sambucus ebulus; C581455:ebulin f, Sambucus ebulus; C107391:ebulin r protein, Sambucus ebulus