The Polycomb group of epigenetic enzymes represses expression of developmentally regulated genes in many eukaryotes. This group includes the Polycomb repressive complex 1 (PRC1), which ubiquitylates ...

Algebraic structures form the backbone of many modern mathematical theories, with module theory standing as a central discipline within abstract algebra. Modules, generalising the concept of vector ...

The modules provided on this site address challenging English structures and processes. Click on the title of a module that seems relevant to your educational concerns. Most of the modules contain the ...

This is a preview. Log in through your library . Abstract Nonribosomal peptide synthetases (NRPSs) are modular multidomain enzymes that act as an assembly line to catalyze the biosynthesis of complex ...

ATK: Alliant Techsystems has delivered a technological first to NASA: a full-scale, crew module structure made of composite materials. The Composite Crew Module (CCM) is a unique capsule design that ...