UTRS INCREASING THE TRANSLATION EFFICIENCY OF RNA MOLECULES

Described is an RNA molecule comprising (a) a coding region coding for a polypeptide; and (b) upstream of said coding region one or more UTR(s) comprising the sequence as shown in SEQ ID NO:1 or a sequence which shows 1 to 4 substitutions in comparison to SEQ ID NO:1 and which results in an RNA molecule having the same or a higher translation efficiency as an RNA molecule comprising an UTR comprising SEQ ID NO:1; and/or (c) downstream of said coding region one or more UTR(s) comprising the sequence as shown in SEQ ID NO:2 or a sequence which shows 1 to 7 substitutions in comparison to SEQ ID NO:2 and which results in an RNA molecule having the same or a higher translation efficiency as an RNA molecule comprising an UTR comprising SEQ ID NO:2; wherein said polypeptide encoded by said coding region is not a cytochrome b-245 alpha polypeptide (CYBA). Moreover, described is a nucleic acid molecule encoding the RNA molecule according to the present invention. Further, described is a vector comprising the nucleic acid molecule according to the present invention and to a host cell comprising the vector according to the present invention. Further, described is a pharmaceutical composition comprising the RNA molecule according to the present invention and optionally a pharmaceutically acceptable carrier. Moreover, described is a kit comprising the RNA molecule according to the present invention. Finally, described is the use of one or more UTR(s) as defined in (b) and/or one or more UTR(s) as defined in (c) for increasing the efficiency of translating a coding region of an RNA molecule into a polypeptide or a protein encoded by said coding region.