| 21. | This enzyme covalently attaches an acetyl group from acetyl-CoA to chloramphenicol, which prevents chloramphenicol from binding to ribosomes.
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| 22. | The deprotonated group is now free to attack the acetyl group of acetyl-CoA or acetylcarnitine at its carbonyl site.
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| 23. | Lastly, a post-NRPS modification happens in the free hydroxyl group from the second isovaleric acid, adding an acetyl group.
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| 24. | It differs from the acetyl group CH 3-C ( = O )-by the presence of one additional oxygen atom.
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| 25. | ChAT catalyzes the transfer of an acetyl group from the coenzyme, acetyl-CoA, to choline yielding acetylcholine ( ACh ).
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| 26. | After ethanol sedation of the flies occurs, acetyl groups are added to histones within the " slo " promoter region.
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| 27. | After the transfer of the acetyl group has occurred, the products are orderly released with N-acetyl-serotonin first and CoA last.
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| 28. | Many researchers had assumed that sir2 was likely to perform its gene-silencing role by stripping acetyl groups off the chromatin.
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| 29. | Acetylcholine is synthesized from choline and a donated acetyl group from acetyl-CoA, by the action of choline acetyltransferase ( ChAT ).
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| 30. | As a posttranslational modification, the acetylation of histones can attract proteins to elongated chromatin that has been marked by acetyl groups.
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