Words similar to carboxylate
Example sentences for: carboxylate
How can you use “carboxylate” in a sentence? Here are some example sentences to help you improve your vocabulary:
In L1, the residue at position 224 is a serine [ 35 ] , and the substrate-binding model for L1 predicts that this serine residue interacts with the carboxylate on substrate via a water molecule [ 37 ] . To test the proposed role of Ser224 in L1, serine was changed to an alanine (S224A), aspartic acid (S224D), and lysine (S224K), and these mutants were characterized using metal analyses, CD spectroscopy, steady-state kinetics, and pre-steady state kinetic studies.
Efforts to solve the crystal structure of one of the metallo-β-lactamases with a bound substrate molecule have failed, most likely due to the high activity of the enzymes towards all β-lactam containing antibiotics [ 37 54 ] . Therefore, computational studies have been used extensively to study substrate binding, the role of the Zn(II) ions in catalysis, the protonation state of the active site, and inhibitor binding [ 37 42 55 56 57 58 59 ] . All of the substrate binding models have made assumptions before the substrate was docked into the active site [ 37 42 ] , and some of these assumptions have been shown to be invalid for certain substrates [ 43 ] . With L1, two key assumptions were made: (1) the bridging hydroxide functions as the nucleophile during catalysis and (2) Zn 1 coordinates the β-lactam carbonyl [ 37 ] . With these assumptions and after energy minimizations, Ser224 was predicted to hydrogen bond to the substrate carboxylate [ 37 ] , reminiscent of the role predicted for Lys224 in CcrA [ 42 ] . Ullah et al.
Like PP5, the dephosphorylation of 32P-MBP by Ppt1p was stimulated by arachidonic acid and other unsaturated fatty acids, but lipids lacking either a double bond or a carboxylate group were not effective (Table 1).
The conserved basic residue interacts with the carboxylate group of the acidic substrate, while the bulky or aromatic residue located carboxy-terminal to the basic one forms the base of the cleft that holds this substrate molecule (Figure 2).
These include O -acetylserine sulfhydrylase, threonine deaminase, threonine synthase, cystathionine β-synthase, 1-aminocyclopropane-1-carboxylate deaminase, L-serine dehydratase, and D-serine dehydratase.
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