Nuclear Functions Charge Ahead

Article Abstract:

Research on Xenopus oocytes indicates that there is a proofreading system in the cell nucleus and a pre-tRNA processing pathway that prevent pre-tRNAs from crossing the boundary separating the nucleus and the cytosol before processing is complete. The mechanism of the proofreading system is discussed.

Physiological aspects

---

The transcriptional paradox: octamer factors and B and T cells

Article Abstract:

Researchers have discovered an accessory protein called BOB that mediates cell type-specific gene expression of immunoglobulins. BOB is expressed constitutively in B lymphocytes. It must be activated by a kinase for expression in T lymphocytes.

B cells, T cells

---

A new turn (or two) for twist

Article Abstract:

Research indicates that a homolog of the gene twist, which encodes a transcription factor needed for the formation of the early mesoderm in the fruit fly Drosophila, is an important regulator of muscle differentiation in vertebrates.

Research, Embryology, Animal embryology

Similar abstracts:

• Abstracts: Health Care Costs. The cis-trans paradox of integrase. Getting down to the core of homologous recombination
• Abstracts: Data in Key Papers Cannot Be Reproduced. Charges fly over advocacy research. After 9 years, a tangled case lurches toward a close
• Abstracts: Structure of gene-tag protein solved. Structure of cytochrome c oxidase, energy generator of aerobic life. Mammalian cytochrome c oxidase, a molecular monster subdued
• Abstracts: Flight 800: anatomy of an investigation. Microplanes. Why airplanes crash
• Abstracts: Is the Universe Fractal? NASA's new science vision

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