Words similar to superfamilies
Example sentences for: superfamilies
How can you use “superfamilies” in a sentence? Here are some example sentences to help you improve your vocabulary:
Analogous active sites, that coordinate two metal ions, are observed in domains with similar activities, such as the classical adenylyl/guanylyl cyclases, family B DNA polymerases, pol-β fold nucleotidyl transferases, and triphosphatases or phosphoesterases of the HD and DHH superfamilies [ 11 15 19 20 ] . Consistent with these observations, both CyaB and ThTPase have been shown to require Mg 2+ions for their nucleotide cyclase and phosphatase activities [ 16 17 ] .
These superfamilies show a wide distribution in viral and cellular genomes, but appear to have originally evolved in large DNA bacteriophages.
This, together with the phyletic distributution of the AraC and 2OG-Fe(II) dioxygenase superfamilies, leads us to speculate that the 2OG-Fe(II) dioxygenase superfamily evolved from the AraC-like superfamily in bacteria through drastic sequence divergence that eliminated significant sequence similarity, followed by fixation of the modified active-site configuration.
We also identify the potential active site- and substrate interacting-residues and postulate that these enzymes are likely to catalyze a two-metal ion dependent reaction on structural scaffold that is completely different from that seen in the other two superfamilies of adenylyl cyclases.
The sporadic distribution of this family among phylogenetically distant bacteria, along with its presence in several prophages, suggests that, like the RecT/Redβ and ERF superfamilies, at least the bacterial RAD52-proteins might be of predominantly phage origin.
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