Words similar to extant
Example sentences for: extant
How can you use “extant” in a sentence? Here are some example sentences to help you improve your vocabulary:
Organic phosphate compounds are the central metabolites of all biological systems [ 1 2 ] . Some are the basic building blocks of nucleic acids, some like ATP and GTP, are additionally, cellular energy stores, others like cAMP or cGMP are messengers in signal transduction, and, yet others, such as FAD, NAD, thiamine phosphates and pyridoxal phosphate are cofactors for a range of enzymes [ 1 2 ] . Protein domains belonging to a relatively small set of structural folds are known to bind or catalyze reactions that utilize these organic phosphate compounds (see SCOP database: http://scop.mrc-lmb.cam.ac.uk/scop/) [ 3 4 ] . Several of these folds trace back to some of the earliest phases of the evolution of the protein world, and participate in a wide range of disparate biological functions in extant proteins [ 4 5 ] . Some folds, such as the P-loop fold, the Rossmann fold and the Hsp70-like fold, have been well studied, and comprise mainly of dedicated nucleotide binding or hydrolyzing proteins [ 6 7 8 9 ] . Others, such as the palm-domain, which is found in adenylyl cyclases and various nucleic acid polymerases, belong to more generalized protein folds that contain representatives with diverse biochemical activities [ 4 10 11 ] . Current availability of extensive genome sequence data, allows one to identify less numerous, nevertheless biological important organic phosphate-binding domains that may have previous eluded detection.
Just think how many words must have been coined by writers whose works are the only ones extant from early periods of the language: people who misuse citation dictionaries must think that Richard Rolle of Hampole, Holinshed, Chaucer, Shakespeare, and a handful of other geniuses sat down one day and invented the English language, making up the words as they went along.
I would bet that all the extant written material from all human civilizations for everything before A.D. 1000 could probably fit on a single DVD disk.
This phylogenetic tree topology resembles that of several proteins involved in core cellular functions such as the DNA recombinase RecA, aminoacyl tRNA synthetases, RNA polymerase and other RNA metabolism proteins [ 21 22 23 ] . This suggests that a CYTH domain was present in the last universal common ancestor of all extant life forms and the extant forms are in part vertically inherited from this ancestral form.
We present evidence that a representative of this domain was present in the last common ancestor of all extant life forms.
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