Calcium-induced restructuring of nuclear envelope and endoplasmic reticulum calcium stores

Article Abstract:

The control of localized calcium signals and sustained calcium gradients critically depends on the spatial arrangement of endoplasmic reticulum (ER) and nuclear envelope (NE) calcium stores. Based on the research, large molecules in resting cells rapidly diffuse across the cell inside the lumenal storage space described by the ER and NE membranes when fused with a lumenal diffusion protein. A rise in cytosolic calcium reversibly separated ER tubules and hindered lumenal diffusion. The vital aspects of ER-NE calcium stores give insights about spatiotemporal control of calcium signaling.

Endoplasmic reticulum

---

A pre-mRNA-binding protein accompanies the RNA from the gene through the nuclear pores and into polysomes

Article Abstract:

Analysis of larval salivary glands of Chironomus tentans has substantiated the theory of how pre-mRNA associate with proteins to form pre-mRNP (ribonucleoprotein) complexes. The complexes studied are associated with the Balbiani ring and has shown an ability to move from the nucleus to the cytoplasm. The C. tentans RNP complex, designated hrp36, was found to be present not only in the nucleus, but has shown significant quantities in the cytoplasm as well. The hrp36 remains stable even after the assembly of polyribosomes on the mRNA.

Nucleoproteins, Carrier proteins, Transport proteins

---

Similar abstracts:

• Abstracts: Darwinian fitness, evolutionary entropy and directionality theory. Is spinal muscular atrophy the result of defects in motor neuron processes?
• Abstracts: Evolution of the mammary gland from the innate immune system?
• Abstracts: The yin and ynag of evo/devo. Creationism and evolution: It's the American way. Developmental biology takes on a Latin American rhythm

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.