𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Evolution of the multi-tubulin hypothesis

✍ Scribed by Patricia G. Wilson; Gary G. Borisy

Publisher
John Wiley and Sons
Year
1997
Tongue
English
Weight
876 KB
Volume
19
Category
Article
ISSN
0265-9247

No coin nor oath required. For personal study only.

✦ Synopsis

Microtubules are organized into diverse cellular structures in multicellular organisms. How is such diversity generated? Although highly conserved overall, variable regions within alpha- and beta-tubulins show divergence from other alpha- and beta-tubulins in the same species, but show conservation among different species. Such conservation raises the question of whether diversity in tubulin structure mediates diversity in microtubule organization. Recent studies probing the function of beta-tubulin isotypes in axonemes of insects suggest that tubulin structure, through interactions with extrinsic proteins, can direct the architecture and supramolecular organization of microtubules.

πŸ“œ SIMILAR VOLUMES

The evolution of cognitionβ€”a hypothesis
The evolution of cognitionβ€”a hypothesis
✍ Holk Cruse πŸ“‚ Article πŸ“… 2003 πŸ› Wiley (Blackwell Publishing) 🌐 English βš– 178 KB

Behavior may be controlled by reactive systems. In a reactive system the motor output is exclusively driven by actual sensory input. An alternative solution to control behavior is given by "cognitive" systems capable of planning ahead. To this end the system has to be equipped with some kind of inte

The evolution of the scrotum: A new hypo
The evolution of the scrotum: A new hypothesis
✍ Scott Freeman πŸ“‚ Article πŸ“… 1990 πŸ› Elsevier Science 🌐 English βš– 886 KB

The adaptive significance of the scrotum is unresolved after more than 60 years of debate and experimentation. The "training hypothesis" introduced here suggests that testicular descent is a mechanism for improving sperm quality. The hypothesis proposes that: (1) testicular descent decreases blood s