Abstract: The present invention relates to analysis of an RNA molecule. It further relates to the use of this method for the quality control of an RNA molecule produced by in vitro transcription or for the quality control of an RNA molecule produced by chemical synthesis.

Abstract: The invention relates to a process for the in vivoproduction of a target RNA in a host cell comprising providing a microorganism comprising a vector comprising a DNA sequence encoding the target RNA, fermenting the host cell and allowing the DNA sequence to be transcribed into the target RNA, and obtaining the target RNA from the host cell. The process is characterised in that the host cell comprises a vector comprising a DNA sequence encoding an RNase inhibitor. The invention also relates to the vector used in such process and the host cell comprising such vector as well as the use of the vector and the host cell in such process.

Abstract: The present invention relates to the field of RNA analysis. In particular, the invention concerns the use of a catalytic nucleic acid molecule for the analysis of an RNA molecule and/or of a population of RNA molecules. In one aspect, the invention concerns methods for analyzing RNA molecules having at least one cleavage site for at least one catalytic nucleic acid molecule. In particular, the invention concerns a method for determining a physical property of an RNA molecule by analyzing a 5? terminal fragment, a 3? terminal fragment and/or at least one optional central RNA fragment obtained by cleavage of the RNA molecule by at least one catalytic nucleic acid molecule. Moreover, the present invention provides novel uses of a catalytic nucleic acid molecule for analyzing RNA molecules.

Abstract: The present invention relates to a method for producing a liquid composition comprising a nanoparticle comprising at least one RNA and at least one cationic or polycationic compound, advantageously on a large scale suitable for pharmaceutical applications. The present invention further concerns the use of the inventive method in the manufacture of a medicament or a vaccine. Furthermore, the invention relates to compositions containing the RNA-comprising nanoparticle, and to pharmaceutical compositions comprising the same.

Abstract: The present invention is concerned with a method of producing a target RNA using a circular DNA, wherein said method does not comprise a step of linearizing said circular DNA. The present invention further relates to a circular DNA comprising an RNA polymerase promoter sequence, followed by a sequence encoding a target RNA, followed by a sequence encoding a self-cleaving ribozyme, followed by an RNA polymerase terminator sequence element, wherein the latter element may comprise several RNA polymerase terminator sequences. Multimeric DNA obtained by rolling circle amplification of said circular DNA is also within the scope of the present invention.

Abstract: The present invention is directed to a storage-stable formulation of long-chain RNA. In particular, the invention concerns a dry powder composition comprising a long-chain RNA molecule. The present invention is furthermore directed to methods for preparing a dry powder composition comprising a long-chain RNA molecule by spray-drying. The invention further concerns the use of such a dry powder composition comprising a long-chain RNA molecule in the preparation of pharmaceutical compositions and vaccines, to a method of treating or preventing a disorder or a disease, to first and second medical uses of such a dry powder composition comprising a long-chain RNA molecule and to kits, particularly to kits of parts, comprising such a dry powder composition comprising a long-chain RNA molecule.