My search found only a web page on a Swedish site that indicated that ACE may refer to an acetyl group.
32.
This ligand has been hypothesized to be a water molecule or an acetyl group in the surrounding area in the cell.
33.
The surrounding solution would end up containing the enzyme lipase B with the glucose molecules containing four acetyl groups as the substrate.
34.
Histone acetyltransferases ( HATs ) catalyze the addition of acetyl groups from acetyl-CoA onto certain lysine residues of histones and non-histone proteins.
35.
The " syn "-configuration of the methoxyoxime moiety confers resistance to hydrolyzed acetyl group of cefotaxime, ceftriaxone has a metabolically stable thiotriazinedione moiety.
36.
The enzyme catalyzes the transfer of a molecular fragment, called an acetyl group, from a donor molecule to the antibiotic, rendering it ineffective.
37.
The thus formed enolate then gives a nucleophilic acyl substitution with the adjacent carbonyl of the acetyl group through a short lived intermediate oxirane.
38.
These modifications include the covalent attachment of methyl or acetyl groups to lysine and arginine amino acids and the phosphorylation of serine or threonine.
39.
Loss of the chemicals, known as acetyl groups, makes the chromatin bunch up closer to the DNA, blocking access to the cell's gene-transcription machinery.
40.
The 3D crystal structure shows the acetyl group of acetyl-CoA abuts the choline binding pocket minimizing the distance between acetyl-group donor and receiver.
