Postdoctoral associate Joerg Braun in the Moore laboratory was awarded an EMBO Long-Term fellowship for his proposal, “Single molecule analysis of mammalian spliceosome assembly”. This fellowship will support Joerg’s work on the molecular mechanism of alternative splicing of pre-mRNAs. Alternative splicing of pre-mRNAs allows the synthesis of multiple proteins from a single gene and is considered as a critical source of complexity in higher eukaryotes, especially in mammals. Joerg is studying the mechanism of splicing in mammals with single molecule techniques in collaboration with the Gelles laboratory at Brandeis University. His work aims to improve our understanding of the regulation of human gene expression and pave the way to address diseases caused by aberrant splicing.