CHEMISTRY: Aromaticity Goes Flat Out

Aromaticity as a cornerstone of heterocyclic chemistry.

Beyond organic chemistry: aromaticity in atomic clusters.

We describe joint experimental and theoretical studies carried out collaboratively in the authors' labs for understanding the structures and chemical bonding of novel atomic clusters, which exhibit aromaticity. The concept of aromaticity was first discovered to be useful in understanding the square-planar unit of Al4 in a series of MAl4(-) bimetallic clusters that led to discoveries of aromatic...

Chemical biology: Chromatin chemistry goes cellular.

What goes in must come out!

" Does the pretty-boy have any clue what he's getting himself into? " L'ward scoffed. D'zan chuckled and shook his head ruefully. " Doubt it. They have a long tradition of huggy-kissy weyrlingmasters at Fort. Remember, B'loren came from there. " It was noontime, and weyrling classes and drills had been dismissed for the lunch hour. The two old friends headed for the Weyrling Complex Hall and th...

Flat-out pushing by actin

Cohesin gets pushed around ings of cohesin hold together sister chromatids. Armelle and colleagues now suggest that cohesin rings get pushed to their final resting places by transcription complexes. Cohesins are known to bind a heterochromatin protein at centromeres, but previous reports of cohesin localization on chromosome arms were incomplete. The authors did a comprehensive survey of four b...