A structural and biochemical approach shows that CTP binding and hydrolysis regulate nucleation, spreading, and recycling of a chromosome segregation protein ParB.
Stefania Viola, William Roseby ... A William Rutherford
Comparisons of enzyme efficiency and electron transfer show that, to oxidize water using lower energy light, the two types of far-red photosystem II have adopted opposite trade-offs between efficiency of light use and resilience to light damage.
Maxwell J Roeske, Eric M Camino ... Thomas Michael Williams
The conserved biochemical activity of the duplicate Bab transcription factors were integrated into the regulatory hierarchy of an evolving gene regulatory network by binding site gains in a target gene's cis-regulatory region.
Vladislav Belyy, Iratxe Zuazo-Gaztelu ... Peter Walter
Stress sensors in the membrane of the endoplasmic reticulum respond to the accumulation of unfolded proteins by briefly forming small phosphorylation-competent oligomers and dissolving back into active dimers.
Nagarajan Nandagopal, Leah A Santat, Michael B Elowitz
Activation of Notch receptors by ligands in the same cell (cis-activation) is a prevalent and functional mode of signaling in the Notch pathway, and co-exists with trans-activation and cis-inhibition.
Nathaniel R Braffman, Terry B Ruskoski ... Emily P Balskus
The X-ray crystal structure of the unusual carbon–carbon bond-forming biosynthetic enzyme CylK reveals a unique biochemical strategy for selective alkyl halide activation and substitution.