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Full-Text Articles in Life Sciences
The Other Lives Of Ribosomal Proteins, Metrah M. Nader
The Other Lives Of Ribosomal Proteins, Metrah M. Nader
PSU McNair Scholars Online Journal
Cellular mRNAs are produced in the nucleus and exported to the cytoplasm through nuclear pore complexes (NPC) that are found in the nuclear membrane. The correctly processed mRNAs are exported in the form of messenger ribonucleoproteins (mRNPs). Since the NPC allows the passage of only one mRNA molecule at a time, export of large ribonucleoproteins (megaRNP) found in the nucleus cannot be transported through the NPC. However, a recent study has discovered an alternative export mechanism known as nuclear envelope budding, which allows megaRNP granules to be exported. This study particularly focuses on identifying ribosomal proteins (RPs) found within large …
Gene Expression Patterns Of Bone Morphogenetic Proteins (Bmps) During Early Embryonic Development In The Annual Killifish Austrofundulus Limnaeus, Eva Y. Chan
PSU McNair Scholars Online Journal
The developmental pattern of the annual killifish Austrofundulus limnaeus is unusual compared to other fish. First, the cell movements associated with gastrulation are separated from formation of the embryonic axis. In addition, embryonic diapause can occur. Diapause II and III are often observed when embryos are incubated at 25oC. Maternal influences and incubation environment are the factors that determine entrance into embryonic diapause, but the molecular mechanisms that regulate diapause are still unknown. Interestingly, embryonic diapause and the unusual cell movements observed during early development are always found together in species of annual killifish that exhibit diapause. Bone …