Transcription of nucleic acids (DNA and RNA) is a hallmark of life, taking the information stored within genomic nucleic acids and converting it into a form that is useful for producing the proteins necessary for cellular and organismal function. In eukaryotes, transcription of DNA into messenger RNA (mRNA) requires the...
Clustered regularly interspaced short palindromic repeats (CRISPR) and their associated Cas proteins provide an immune-like response in many prokaryotes against extraneous nucleic acids. CRISPR-Cas systems are classified into different classes and types that vary widely in composition, target recognition, and overall mechanism. The main division of CRISPR-Cas systems occurs between...