The exon junction complex (EJC) is a protein complex which forms on a pre-messenger RNA strand at the junction of two exons which have been joined together during RNA splicing.
It has major influences on translation, surveillance and localization of the spliced mRNA.

The reconstruction of ancestral genomes is also called karyotype reconstruction.
Recently, researchers have developed computational methods to reconstruct the ancestral karyotype by taking advantage of comparative genomics.

Diatoms are a widespread group and can be found in the oceans, in fresh water, in soils, and on damp surfaces.
They are one of the dominant components of phytoplankton in nutrient-rich coastal waters and during oceanic spring blooms, since they can divide more rapidly than other groups of phytoplankton

The NMDA receptor is a glutamate and ion channel protein receptor that is activated when glycine and glutamate bind to it. The receptor is a heteromeric complex that interacts with multiple intracellular proteins by three different subunits: GluN1, GluN2 and GluN3.