Fecha de publicación: 25/12/2008 Fuente: WIPO "apis mellifera" The present invention relates to a nucleic acid encoding a polypeptide capable of binding to IgE from subjects allergic to venom of an insect from the order Hymenoptera having a homology of more than 70% to the amino acid sequence of SEQ ID NO: 2, which is the honey bee allergen C (Api m 5). The invention further relates to expression vectors, host cells and polypeptides encoded by the nucleic acid, as well as diagnostic and pharmaceutical uses thereof.