コーパス検索結果 (1語後でソート)
通し番号をクリックするとPubMedの該当ページを表示します
1 fectiveness of the binding of the developing oxyanion.
2 ize a second water for protonation of the 3'-oxyanion.
3 s of Ca bound directly and indirectly to the oxyanion.
4 and down-gradient wells have little or no Se oxyanions.
5 the diamagnetic anisotropy of these trigonal oxyanions.
6 h we interpret as incomplete reduction of Se oxyanions.
7 model SRM, we screened a panel of inorganic oxyanions.
8 ples was a mixture of elemental Se(0) and Se oxyanions.
9 on of the cells from the inhibition by these oxyanions.
13 supporting a role for N85 in stabilizing the oxyanion and in coordinating, along with S138, the attac
14 tial position of the nascent peptide and the oxyanion and places the amine near the critical A76 2'-O
15 ving neighboring group participation by a C2-oxyanion and rate-limiting formation of a 1,2-anhydro su
16 repulsion between bound P(i) and the Ser102 oxyanion and the binding of P(i) in its trianionic form
18 ppeared to derive from both desorption of Se oxyanions and oxidative dissolution of elemental Se(0).
19 tion of the pyridine nitrogen, the phenoxide oxyanion, and the carboxylate anion of the 1-glycine imi
20 er contaminants (i.e., halogenated organics, oxyanions, and nitrosamines), and identifies key researc
21 d toward the oxygen lone pairs on a trigonal oxyanion are stronger than hydrogen bonds to the pi-elec
23 emediation strategy for arsenic in which the oxyanion arsenate is transported aboveground, reduced to
26 However, the WPD-loop in the presence of oxyanions assumes a half-closed conformation, in contras
28 neutral pKa stabilizes the transition-state oxyanion, at least to the extent that CCdApPmn accuratel
30 These structures also show that tetrahedral oxyanions bind at a novel secondary site and function to
31 ogenic SOD1 mutant D125H reveals the mode of oxyanion binding in the active site channel and implies
32 ct, acetate, reveals details of the putative oxyanion binding site, and suggests that substrates bind
33 Active site substitutions, including at the oxyanion binding site, enable the production of substitu
35 )H NMR titration experiments, which show the oxyanion binding trend HCO3(-) > H2PO4(-) > HSO4(-), whe
40 ifying the problems associated with modeling oxyanions by means of two fixed water molecules (or rela
43 a stable analogue of the shared family alpha-oxyanion carboxylate intermediate/transition state) and
44 adenosine 3',5'-diphosphate and the original oxyanion.) Chlorate and perchlorate form dead-end E.MgAT
45 ely measured the concentration of metals and oxyanions (CMBL/CSol = 0.85-1.12) over 4 days, with the
46 ion model for NOM (NOM-CD), the pH-dependent oxyanion competition of the organo-mineral oxide fractio
50 large oxyanion:Fe solids ratio, depletes the oxyanion concentration with only small amounts of Fe.
53 sopropyl fluorophosphonate, which mimics the oxyanion-containing tetrahedral intermediate of the hydr
56 iation constant of E.APS, and the monovalent oxyanion dissociation constants of dead end E.MgATP.oxya
61 f Fe(II) oxidation and, because of its large oxyanion:Fe solids ratio, depletes the oxyanion concentr
62 Nonetheless, certain prokaryotes use arsenic oxyanions for energy generation, either by oxidizing ars
63 t chromium Cr(VI), typically existing as the oxyanion form of CrO4(2-), is being considered for more
65 ific 2'-O-MTase VP39 does not promote RNA 2'-oxyanion formation but that instead it acts by steering
66 lytic residues at the enediolate O-1 and O-2 oxyanions formed on deprotonation of GAP and DHAP, respe
67 s suggests that there was no upwelling of Se oxyanions from an oxic deep-ocean reservoir, which is co
70 n-state binding studies of the receptor with oxyanions have also been carried out by (1)H NMR titrati
71 rimary specificity pocket (Asp-189), and the oxyanion hole (Gly-193) hold most of the favorable contr
72 site are mediated by two waters, one in the oxyanion hole (H(2)O(oxy)) and one on the other (S2) sid
74 d oxygen with the backbone of Ser-195 in the oxyanion hole and a loop opening between residues 216-22
75 ant features of the active site including an oxyanion hole and a polar binding pocket that interacts
76 a with the pyridine and alcohol to act as an oxyanion hole and activate the bound acyl-spiroligozyme
77 The work also offers a detailed view of the oxyanion hole and an exceptional "in-action" depiction o
78 ement that places the scissile amide into an oxyanion hole and forces the nucleophilic residue into a
79 with its carbonyl oxygen pointing out of the oxyanion hole and forming hydrogen bonds with Lys-234 an
80 cement of the main chain atoms that form the oxyanion hole and movement of the lid loop region when t
81 of the acyl-enzyme complex was located in an oxyanion hole and positioned to hydrogen bond with the b
82 ocated between the 190 strand leading to the oxyanion hole and the 220-loop that contributes to the a
84 in SHV-1: one with the acyl CO group in the oxyanion hole and the second with the acyl group rotated
85 phenolate can rotate freely relative to the oxyanion hole and thus loses the preorganization contrib
86 to the active site via polar contacts to the oxyanion hole and to residues 268 and 301 as well as by
87 -phase calculations with a fixed model of an oxyanion hole are sufficient for assessing the correspon
88 ed to the structures for the E166A form, the oxyanion hole becomes smaller, providing one explanation
89 me is that the inhibitor is not bound to the oxyanion hole but interacts extensively with the "roof"
90 ide nitrogens of Asp224 and Thr223 create an oxyanion hole by hydrogen bonding to the terminal amide
91 al substrate facilitates construction of the oxyanion hole by stabilizing the position of the active
95 ls in the boronyl center (O2) is held by the oxyanion hole comprising the amides of Ser-44 and His-21
96 s of cinchona alkaloid catalysts involves an oxyanion hole consisting of purely C-H functionality.
97 timate that the H-bonding interaction in the oxyanion hole contributes a stabilization of the ground
98 bstituted Tyr residues suggests that the KSI oxyanion hole does not provide catalysis by forming an e
99 backbone amide group of Gly 159 provides an oxyanion hole for stabilization of the tetrahedral trans
100 gen bond connects to a peptide that forms an oxyanion hole for stabilization of transient negative ch
101 ubstrate and not the TF binding that induces oxyanion hole formation and functional active site geome
102 splacement, d-Phe-Pro-Arg incorporation, and oxyanion hole formation by a flip of the 192-193 peptide
103 The transition state is stabilized by an oxyanion hole formed by the backbone amides of Ala102 an
107 structural consequences of substituting the oxyanion hole hydrogen bond donors and several residues
108 ase (KSI) reported that substitution of both oxyanion hole hydrogen bond donors gives a 10(5)- to 10(
109 eemingly conservative mutations replaced the oxyanion hole hydrogen bond donors with hydrophobic side
110 e complex structure, which has only a single oxyanion hole hydrogen bond, is proposed to give rise to
111 sin-like proteases and the importance of the oxyanion hole in protease function suggest that this mec
112 (224) and the side chain of Arg(233) form an oxyanion hole in sortase B that stabilizes high energy t
113 the Thr-80 O(gamma) atom and a role for the oxyanion hole in stabilizing the negatively charged tetr
114 butions of each protonation state showed the oxyanion hole in the active site of wild-type Delta(5)-3
116 owed that the carboxylate group occupies the oxyanion hole in the enzyme, while the sulfonamide provi
119 ing the catalysis and that the electrostatic oxyanion hole interactions may not be sufficient to lead
120 n suggest that the sorting signal-stabilized oxyanion hole is a universal feature of enzymes within t
122 m its position in the active E form, and the oxyanion hole is disrupted by a flip of the Glu(192)-Gly
125 larization caused by hydrogen bonding in the oxyanion hole is intimately linked to substrate turnover
126 e-emphasize the point that the effect of the oxyanion hole is mainly due to the fact that the relevan
127 ly known to use a Tyr side chain to form the oxyanion hole is prolyl oligopeptidase, but the Y44F mut
129 ecular modeling suggests that an alternative oxyanion hole may have been recruited, consisting of the
130 (8)-fold rate reduction, suggesting that the oxyanion hole may provide the major contribution to KSI
131 roduct analog bound to ketosteroid isomerase oxyanion hole mutants and concluded that the active-site
132 ycles revealed similar contributions from an oxyanion hole mutation in the wild-type and base-rescued
134 and the presence of a water molecule in the oxyanion hole of AVCPDelta2 (AVCP with a deletion of the
136 oxygen of (-)-cocaine benzoyl ester and the oxyanion hole of BChE in the TS1 structure for (-)-cocai
139 nion intermediate is stabilized by an enzyme oxyanion hole provided by Lys104 and Tyr158 of SpvC.
140 ts carbonyl oxygen positioned outside of the oxyanion hole provides a rationale for the stability of
141 ydrogen bond energetics and suggest that the oxyanion hole provides an important, but moderate, catal
143 d by the amide O of Gln19-a component of the oxyanion hole that binds the tetrahedral species formed
144 catalytically relevant water molecule and an oxyanion hole that both orients the substrate and offset
145 tive site catalytic residues and surrounding oxyanion hole that covalently binds the core of the alph
146 ackbone amides (Ile126 and Gly127) create an oxyanion hole that helps orient the formyl group for nuc
147 A water molecule now moves into the putative oxyanion hole that is constituted of a main-chain amide
148 an, asparagine, and tyrosine residues in the oxyanion hole that stabilizes the transition state for e
149 teraction of the inhibitor with the proposed oxyanion hole through interaction with a helix dipole an
150 11 side-chain alcohol hydrogen away from the oxyanion hole to hydrogen bond with the backbone carbony
151 -268 were identified as participating at the oxyanion hole to stabilize the tetrahedral species in th
153 (F-Tyr's) in the ketosteroid isomerase (KSI) oxyanion hole to systematically vary the proton affinity
155 donors and several residues surrounding the oxyanion hole with smaller residues in an attempt to cre
158 lar, the Zn(1) ion is likely to serve as an "oxyanion hole" in stabilizing the carbonyl oxygen, while
160 hydrogen bonding from the amide backbone of 'oxyanion hole' residues, consistent with formation of a
161 t Thr57 Ogamma and a water molecule form an 'oxyanion hole' that likely stabilizes the proposed oxyox
162 on intermolecular hydrogen bonding (with an oxyanion hole), which is crucial for the transition stat
163 on of FVIIa active site in the region of the oxyanion hole, a "flipped" Lys192-Gly193 peptide bond.
164 tion by these compounds does not involve the oxyanion hole, an unprecedented departure from known and
166 nformational changes in the active site, the oxyanion hole, and the substrate specificity pocket resi
167 vicinity may stabilize the S1 pocket and the oxyanion hole, and they may have general implications fo
168 yanion hole; and Asp-9, which stabilizes the oxyanion hole, are among the most highly conserved resid
170 n of the S1 substrate binding pocket and the oxyanion hole, evident by an increased affinity for p-am
171 rized three histidine substitutions near the oxyanion hole, G57H, L58H, and M162H, which significantl
172 characterization: three corresponded to the oxyanion hole, hydrolase motif, and catalytic aspartate
173 nding between the substrate and the enzyme's oxyanion hole, the structure of the product analogue hex
174 that introducing a positive charge near the oxyanion hole, W197I/C60R or W197I/C60K, results in a fu
175 nt Cys408 is triply oxidized and lies in the oxyanion hole, which would block the binding of substrat
176 by X-ray with the acyl carbonyl outside the oxyanion hole, while the Delta (2) species corresponds t
177 etry and determines the rotamer state of the oxyanion hole-forming Asn295, and thus adds a second lev
206 -74, and Arg-75 in exosite I; Gly-193 in the oxyanion hole; and Asp-221 and Asp-222 in the Na+ site.
207 lytic dyad; Arg-17 and Ser-56, which form an oxyanion hole; and Asp-9, which stabilizes the oxyanion
211 tic dyads and triads are usually paired with oxyanion holes for substrate activation, but it is diffi
212 und much higher success rates using designed oxyanion holes formed by backbone NH groups rather than
213 Small-molecule transition state analogues of oxyanion holes have been characterized by computations,
215 Typical functionalities found in enzyme oxyanion holes or chemically designed oxyanion-hole mimi
218 e electron equivalents required to reduce Te oxyanions; however, the reduction rates were modestly in
219 receptor's crown ether ring and the trigonal oxyanion hydrogen bonded to the receptor NH residues.
220 resting enzyme and to the inhibitor-derived oxyanion in a chloromethyl ketone complex, observations
221 ophile, moving more than 2 A and placing the oxyanion in contact with Gln19 and the backbone amide of
222 ead to suboptimal solvation of the incipient oxyanion in the mutants, thereby potentially exaggeratin
226 igher accuracy of Metsorb for measuring some oxyanions in freshwater and seawater, and the possibilit
228 asured the concentration of trace metals and oxyanions in synthetic freshwater (CMBL/CSol = 0.82-1.18
229 observed by both direct quantification of Se oxyanions in the leachate and the corresponding loss of
231 vity at pH 8.7 in buffers containing various oxyanions, including acetate, carbonate, EDTA, and phosp
232 gh concentrations of molybdate and tungstate oxyanions inhibit growth, thus requiring the tight regul
234 ermodynamically favored than maintaining the oxyanion intermediate necessary for catalysis to proceed
235 o receive the hydride, disassociation of the oxyanion intermediate to form the dead-end adduct is mor
238 crucial for the stabilization of high-energy oxyanion intermediates or transition states through hydr
239 e followed by fragmentation of the resulting oxyanion into the carboxylic acid and a benzyl anion.
240 In all solid-state structures, the trigonal oxyanion is not located symmetrically inside the recepto
242 The crystal structure confirms that the oxyanion is stabilized by the main chain amide of Ser-20
245 nvolving pre-equilibrium dissociation of the oxyanion ligand (RO(-)) followed by nucleophilic attack
246 the helix 6 interaction with the active site oxyanion loop is therefore used in two independent regul
248 ystem had the highest water content and that oxyanions may bridge iron(III) hydroxide polymeric embry
252 idic species is formed by protonation of the oxyanion of the para-hydroxy-cinnamyl cysteine chromopho
253 osed role of H84 is as a proton donor to the oxyanion of the quinoid species such that subsequent C-H
255 effects reported suggests that these simple oxyanions of nitrogen have a much richer profile of biol
256 he determination of biospherically important oxyanions of selenium (Se) and tellurium and another Se-
257 strial strategies to chemically reduce these oxyanions often require the use of harsh conditions, but
259 s oxic conditions with lower availability of oxyanions or increased bioproductivity along continental
260 tion of acetic acid, most likely through the oxyanion produced by nucleophilic attack at the carbonyl
262 ected mutagenesis, and energetic analyses of oxyanion recognition by the P-loop in the ATP/ADP bindin
263 y in the pure form compared to that of other oxyanion reductases, such as the membrane-bound and peri
265 ase in the order fluoroanions > carboranes > oxyanions, reflecting the relative basicities of the ani
266 rmed in the presence of bivalent cations and oxyanions represent important components of the global F
267 e formation mechanisms and structures of the oxyanion-rich Fe(III) polymers determined in this study
268 growth medium and amended with the selenium oxyanion selenate, selenite, or selenocyanate, produces
269 e efficient method, the predominant selenium oxyanions, selenite (Se(IV)) and selenate (Se(VI)), can
272 used to capture TcO4(-) and closely related oxyanions so far and discuss the possibility of using me
274 istent with the catalytic antibody providing oxyanion stabilization as its major contribution to cata
275 se for UDP-glucose alcohol oxidation and for oxyanion stabilization during formation and breakdown of
277 ched to the catalytic serine alone, with the oxyanion stabilized by unusual tripartite interactions w
278 identified that enable high selectivity: an oxyanion-steering mechanism and a CH-pi interaction.
279 plications for the flux of As and also other oxyanions, such as phosphate, across the groundwater-lak
280 The orientation of the enzyme-associated oxyanion suggests that both the self-oxidative and exter
282 aqueous streams containing soluble tellurium oxyanions, tellurate (Te(VI)), and tellurite (Te(IV)).
286 These simulations revealed formation of the oxyanion thiohemiacetal intermediate only when the nicot
287 able to biocatalyze the reduction of both Te oxyanions to produce Te(0) nanoparticles (NPs) in sulfur
289 ansfer allowing for the stabilization of the oxyanion transition state and subsequent protonation of
290 ically repels the product phosphate, another oxyanion, tungstate, binds more strongly in the presence
292 urce, these Fe(III) polymers, which dominate oxyanion uptake, form with little dependence on the init
293 trace metal (Mn, Co, Ni, Cu, Cd, and Pb) and oxyanion (V, As, Mo, Sb, W, and P) concentrations in fre
294 AP active site is known to stabilize another oxyanion, vanadate, in trigonal bipyramidal geometry, bu
295 pivotal role for stabilizing the developing oxyanion, via C-H...O hydrogen bonds, in our newly propo
297 ltispecies biofilms biotransforming selenium oxyanions were characterized using X-ray fluorescence im
300 es such as basaluminite for As(V) and Se(VI) oxyanions, with adsorption capacities on the same order
WebLSDに未収録の専門用語(用法)は "新規対訳" から投稿できます。