TOX 21: New Dimensions of Toxicity Testing

TOX 21: New Dimensions of Toxicity Testing

Toxicity Testing and the Toxicity Testing and the Current Situation in IRAN

Toxicity Testing and the Toxicity Testing and the Current Situation in IRAN

Genetic analysis of tox+ and tox- bacteriophages of Corynebacterium diphtheriae.

A series of mutants derived from the temperate corynebacteriophages beta(tox+), gamma(tox-), and L(tox+) was isolated and characterized. In three-factor crosses between mutant beta phages the relative map order of the genetic markers determining extended host ranges (h and h') and loss of ability to lysogenize (c) was found to be h--c--h'. Recombination between markers was observed in matings b...

In-TOX-icating neurogenesis.

Early development of the mammalian cerebral cortex proceeds via a sequence of proliferative and differentiative steps from neural stem cells toward neurons and glia. However, how these steps are molecularly orchestrated is still only partially understood. In this issue of The EMBO Journal, Artegiani and colleagues implicate Tox, a HMG-box transcription factor previously known only for its role ...