The conservation of these structural features suggests a functional role for CckA has been conserved in Wolbachia.
The rest of the site was a gift from the king, and a document dated April 25 , 1751verifying the royal donation has been conserved in the house, passed on from owner to owner over the centuries.
RNA interference (RNAi) is a gene silencing mechanism that has been conserved in evolution from yeast to man.
Expression of surface immunoglobulin (sIg) related receptors has been conserved in phylogenetically distinct species as a critical checkpoint in B cell development.
The researchers say that motion detection must have appeared early in the evolution of fish, and has been conserved in their descendants, including mammals.
"Presumably it [Neopilina] originated from an ancestor inhabiting shallow water Cambrian-Devonian epicontinental seas and has been conserved in the abyss up to this day in a reasonably unchanged form".
Tocochromanols are absolutely essential for limiting lipid oxidation during seed desiccation, storage and germination, and the severe fitness impact of tocochromanol deficiency at this stage of the plant life cycle makes it obvious why tocochromanol synthesis has been conserved in all seed-bearing plants during evolution.
This machinery has been conserved in plastids but it is not yet clear whether mitochondria possess a functional TAT system [24].
In toto, these results described here suggest that HCF-1 activity has been conserved in animals for chromatin modification and cell cycle regulation.
That the entire machinery of selenoprotein synthesis has been conserved in C. elegans for synthesizing a single protein had been taken, until very recently, as an indication that selenoproteins are essential for animal life.
We propose that this movement has been conserved in vertebrates and that it may have facilitated a new mode of cell proliferation (the sequential mode) for trunk elongation in an intense cell proliferation context.
