Words similar to porta
Example sentences for: porta
How can you use “porta” in a sentence? Here are some example sentences to help you improve your vocabulary:
Only with a special appointment can you visit the glorious Palazzo Farnese, built by Antonio da Sangallo the Younger, Michelangelo, and Giacomo della Porta.
San Giovanni in Oleo stands near the spot, just inside the ancient Porta Latina, where St. John the Evangelist is said to have survived immersion in boiling oil.
West on the Via Porta Rossa is the 14th-century Palazzo Davanzati; its stern, fortress-like exterior still provides rings at ground level for tethering horses and on upper stories to hold torches and lanterns for festive occasions.
Beyond the formidable Porta da Beja, a monumental gate in the city wall, small streets wend among bright white houses.
For example, Herschlag and co-workers have previously shown that a nucleobase could complement an abasic site within the hammerhead ribozyme, restoring cleavage activity [ 1 ] . Similarly, Porta and Lizardi engineered a hammerhead ribozyme that assumed an inactive secondary structure; upon the addition of an oligonucleotide that disrupted the engineered secondary structure, the ribozyme was activated [ 2 ] . More recently, it has previously been shown that many selected nucleic acid binding species (aptamers) undergo conformational changes upon ligand binding [ 3 4 5 6 ] In addition, when aptamers are conjoined to ribozymes, the ligand-induced conformational changes in the aptamers frequently modulate the structures and hence the activities of the ribozymes [ 7 8 9 ] For example, binding of theophylline to the anti-theophylline aptamer [ 10 ] modulates the conformation of residue [ 11 12 ] and the overall stability of the aptamer [ 10 13 ] . Appending the anti-theophylline aptamer to the hammerhead ribozyme allowed cleavage activity to be modulated by 110-fold by theophylline [ 13 ] . Similarly, appending the anti-theophylline aptamer to a small ribozyme ligase (L1) generated an aptazyme that was activated 1,600-fold by saturating theophylline concentrations [ 14 ] .
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