The field of microproteins and other non-canonical proteins has seen significant growth in recent years. While their study presents major technical challenges, the development of numerous experimental strategies based on ribosome profiling and mass spectrometry has enabled the field to advance. What's particularly noteworthy about the discovery of microproteins is not just the discovery of new proteins, most of which are small and unannotated in conventional databases. It is becoming increasingly clear that transcripts that have been annotated as non-coding can in fact have functional open reading frames (ORFs) and produce proteins, eukaryotic transcripts can be polycistronic, pseudogenes can encode functional proteins, small ORFs encoding microproteins have a role in evolutionary innovation.
This Collection covers a wide range of topics related to microproteins, including, but not limited to:
• Databases for the study of microproteins and small ORFs
• Proteogenomic strategies for the detection of microproteins and small ORFs
• Function of microproteins in prokaryotes and eukaryotes (including plants)
• Pseudogenes- and lncRNAs-encoded microproteins
• Polycistronic transcripts
• Small ORFs and their roles in regulation and molecular evolution