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1 resulting thiol coordinating to the cofactor heme iron.
2 a key cysteine residue that coordinates the heme iron.
3 sient iron-oxo (ferryl) intermediates of the heme iron.
4 e insight into how L. monocytogenes captures heme iron.
5 matic hydrocarbons, N-nitroso compounds, and heme iron.
6 yl substituent oriented toward the catalytic heme iron.
7 ated with O2 stably bound to the active site heme iron.
8 al damage during ischemia, by protecting its heme iron.
9 HCCS (His154) provided the key ligand to the heme iron.
10 nce on the amount of fat and the contents in heme iron.
11 NO via coordination to and release from the heme iron.
12 maps with its pyridyl nitrogen bound to the heme iron.
13 conserved Leu residue near the catalytic non-heme iron.
14 eme peroxidases that have a histidyl-ligated heme iron.
15 ay beam reveal photoreduction of the central heme iron.
16 lete binding of several azoles to the BM3 DM heme iron.
17 nes in the heme pocket directly bound to the heme iron.
18 as indicative of nitrogenous ligation to the heme iron.
19 ein with pentacoordinate, methionine-ligated heme iron.
20 lotrimazole being at a 4 A distance from the heme iron.
21 with those of proteins with pentacoordinate heme iron.
22 ual heterocyclic amines, benzo(a)pyrene, and heme iron.
23 s utilized by Mtb to acquire ferric iron and heme iron.
24 dence for this site being used to access the heme iron.
25 by permanent displacement of Met80 from the heme iron.
26 gaseous ligands through coordination to the heme iron.
27 ed oxygenic ligand at 1.88 angstrom from the heme iron.
28 without loss of the native low spin type of heme iron.
29 presumed to be subsequently captured by the heme iron.
31 achlorhydria reduced the normal increase in heme-iron absorption from hemoglobin in response to iron
36 rophore-mediated iron acquisition (SMIA) and heme-iron acquisition (HIA), involving uptake and degrad
38 odel for Isd-mediated hemoglobin binding and heme-iron acquisition during the pathogenesis of S. aure
41 -C2 carbocyclization is catalyzed by the non-heme iron alpha-ketoglutarate (alpha-KG)-dependent SnoK
42 yl 4-hydroxylases (P4Hs) are mononuclear non-heme iron alpha-ketoglutarate (alphaKG)-dependent dioxyg
43 a mechanistically distinct bifunctional non-heme iron alpha-ketoglutarate-dependent enzyme responsib
44 or threonine residue, the inclusion of a non-heme iron, alpha-ketoglutarate-dependent oxygenase for h
45 and distal histidines directly bound to the heme iron, although coordination of the sixth ligand is
46 ter molecule that is coordinated to the P450 heme iron and also hydrogen-bonded to the BIC nitrile.
47 ron uptake mechanisms, one that utilizes non-heme iron and another that taps into the vast host heme-
49 an intrinsic ability to reduce oxidized sGC heme iron and form protein-protein complexes between cyt
50 ct tertiary structure with a hexacoordinated heme iron and functions in electron transport in mitocho
51 in, dietary cholesterol, saturated fats, and heme iron and higher urinary potassium and intakes of ca
52 e resulting breakage of the bond between the heme iron and histidine 105 (H105) of the beta subunit o
53 guides incoming hydrogen peroxide toward the heme iron and mediates proton rearrangement in the proce
54 is highly homologous to human SO (HSO), the heme iron and molybdenum centers are separated by 32 A a
55 ther ligand interaction often occurs between heme iron and native methionine ligands, but thioether-b
56 nt implications on electronic charge of both heme iron and O2 , resulting in increased O2 dissociatio
57 leads to the rupture of the bond between the heme iron and the intrinsic sulfur ligand of a methionin
58 nger coordination bond between the catalytic heme iron and the pyridine nitrogen implies a weaker inf
60 (His19) of CXXCH acts as an axial ligand to heme iron and upon release of holocytochrome c from HCCS
61 gen atom of mycinamicin IV within 6 A of the heme iron and ~4 A of the oxygen of iron-ligated water.
63 out a different bond interaction between the heme-iron and the proximal histidine and highlighting st
65 GDM, greater intakes of total iron, dietary heme iron, and supplemental iron were associated with hi
66 e nitrogen atom of 24 to coordinate with the heme iron, and the imidazoleisoindole core situated in p
67 as evaluated in the reaction of nitrite with heme iron, and the observed rate constants of the reacti
68 (M80) and second-sphere (Y67) ligands of the heme iron, as a distinctive feature of the conformationa
69 ly correlated to the electron density at the heme iron, as evidenced by dramatic changes in the heme
73 robably dioxygen) was sandwiched between the heme iron atom and Thr237 in the TxtC-intermediate struc
74 ) bond or alternatively the oxidation of the heme iron atom itself is used to detect O(2) and switch
78 ighest binding affinity to heme and controls heme-iron availability in tissues and also in T lymphocy
81 FMN) serves as the one-electron donor to the heme iron, but in contrast to the electron transfer mech
82 issociation of the proximal histidine of the heme iron, but the added peripheral glutamate side chain
83 Trp complex, where CO is photolyzed from the heme iron by X-rays at cryogenic temperatures (100 K).
84 lu, suggest that water displacement from the heme iron can be affected in activator-bound CYP46A1.
85 tion of the distal histidine relative to the heme iron can influence reactivity at the heme center.
88 nt strategies were assessed for avoiding the heme iron catalytic effect on lipid oxidation: ascorbyl
89 the proximal histidine dissociates from the heme iron, causing a conformational change that triggers
91 cyanide (CN(-)), and histamine to the ferric heme iron center in the NO-storage and -transport protei
92 center in AbCntA-WT to the mono-nuclear, non-heme iron center through the bridging glutamate E205 and
94 le interactions between paramagnetic FMN and heme iron centers in the [Fe(III)][FMNH(*)] (FMNH(*): FM
95 Cytochrome P450 enzymes activate oxygen at heme iron centers to oxidize relatively inert substrate
97 mately 0.8 A, respectively, farther from the heme iron compared to that in the wild-type protein.
103 oxidations are catalysed by bio-inspired non-heme iron complexes using hydrogen peroxide as oxidant,
105 ternary ammonium substrate, carnitine by non-heme iron containing Acinetobacter baumannii (Ab) oxygen
108 otenoid cleavage dioxygenases (CCDs) are non-heme iron-containing enzymes found in all domains of lif
109 lyl hydroxylase domain (PHD) enzymes are non-heme, iron-containing dioxygenases requiring for activit
115 119 from Sulfolobus acidocaldarius maintains heme iron coordination through the introduced ligand, an
118 of colon cancer by red meat and suggest that heme iron could initiate carcinogenesis through lipid pe
119 s to both CYP11B enzymes by coordinating the heme iron, CYP11B2 binds to the R enantiomer of fadrozol
123 is unusual, in that the iron-sulfur and non-heme iron domains that compose the normally functional R
126 thesis, the combination of a mononuclear non-heme iron enzyme catalyzed oxidative C-S bond formation
127 ave been proposed for alpha-KG-dependent non-heme iron enzyme catalyzed oxygen atom insertion into an
131 oxidase (HppE) is an unusual mononuclear non-heme iron enzyme that catalyzes the oxidative epoxidatio
132 as savastanoi ethylene-forming enzyme, a non-heme iron enzyme, can catalyze olefin aziridination and
135 ent dioxygenases are a diverse family of non-heme iron enzymes that catalyze various important oxidat
136 cifically, alpha-ketoglutarate-dependent non-heme iron enzymes, CitB and ClaD, are employed to select
142 ed D-lactate into pyruvate by converting the heme iron from Fe(3+) to Fe(2+) in a FAD-dependent manne
143 n of peroxides with peroxidases oxidizes the heme iron from Fe(III) to Fe(IV)=O and a porphyrin or ar
144 s fulfills its iron requirement by obtaining heme iron from host hemoproteins via IsdG- and IsdI-medi
146 rIDO by inducing a transition of the ferric heme iron from the predominantly high- to low-spin form
147 ace determinant (Isd) system, which extracts heme-iron from host hemoglobin during infection and is c
148 d surface determinant (Isd) system scavenges heme-iron from the human host, enabling acquisition of i
149 ition for SyrB2, a member of a family of non-heme iron halogenases and hydroxylases that are only rea
151 -Fe(III)(OH)(halide) intermediate in the non-heme iron halogenases were synthesized and examined for
153 enzymes (P450s whose Cys axial ligand to the heme iron has been replaced with Ser) generated variants
156 onsymbiotic hemoglobin with a hexacoordinate heme iron, high oxygen affinity, and slow oxygen dissoci
157 tential mechanisms for this relation include heme iron (HR, 1.13; 95% CI, 0.99-1.29; P(trend) = 0.022
163 -bound and apo-HasA homologues show that the heme iron(III) ligands, His32 and Tyr75, reside on loops
166 ifferent orientations,and distances from the heme iron in different heme proteins and the position of
168 i) to provide the second axial ligand to the heme iron in preparation for covalent attachment; (ii) t
174 macrophages were exposed to large amounts of heme iron, in contrast to donor and p.A69T macrophages,
175 RATIONALE: Soluble guanylate cyclase (sGC) heme iron, in its oxidized state (Fe(3+)), is desensitiz
176 that the lower affinity of 1,2,3-TRZ for the heme iron includes a large unfavorable entropy term like
179 79 residues as the axial ligands of the HtsA heme iron, indicate that the M79 side is more accessible
182 lung carcinoma, which might be explained by heme iron intake, high-temperature cooking, and associat
183 try, fish, and shellfish intakes, as well as heme iron intake, with the risk of type 2 diabetes melli
186 .19; 95% CI: 1.05, 1.36; P-trend = 0.06) and heme-iron intake (HR for 1-mg/d increase: 1.83; 95% CI:
187 highest compared with the lowest quintile of heme-iron intake was 1.01 (95% CI: 0.89, 1.14; P for tre
188 o not support an association between iron or heme-iron intakes and postmenopausal breast cancer.
191 ctra of HtsA with a low-spin, hexacoordinate heme iron into spectra of high-spin heme complexes.
192 pectroscopies indicate that reduction of the heme iron is accompanied by loss of the cysteines as axi
194 me to IsdA, the final surface protein before heme-iron is transported through the peptidoglycan.
196 of spectroscopically characterized synthetic heme iron(IV) oxo complexes, F(8)Cmpd-II (F(8) = tetraki
198 s prior to the binding of a second NO to the heme iron, leading to a (six-coordinate low-spin heme-ni
199 d binding to a site near BM3h's paramagnetic heme iron led to a drop in MRI signal enhancement and a
200 red mitochondrial and cytosolic heme and non-heme iron levels in failing human hearts retrieved durin
205 as well as the first example of voriconazole heme iron ligation through a pyrimidine nitrogen from it
207 Our data demonstrated that Hx prevented heme-iron loading in the cardiovascular system, thus lim
208 of hemoglobin and heme into the circulation, heme-iron loading of reticulo-endothelial system macroph
209 positive charges created upon oxidation of a heme iron (located near the hydrogen bond network) for O
210 Intakes of dietary iron and, in particular, heme iron may increase breast cancer risk because of the
211 amical properties of the axial ligand to the heme iron, Met80, such that the replacement of glycine b
212 Here, we review the impact of macrophages on heme-iron metabolism and, reciprocally, how heme-iron mo
213 oordination of the imidazole nitrogen to the heme iron mimics the position required for native fatty
214 oglobins in having a pentacoordinate ferrous heme iron, moderate oxygen affinity, and a relatively ra
216 understanding of the catalytic action of non-heme iron (NHFe) and non-heme diiron (NHFe(2)) enzymes i
218 processed meat intake and colorectal cancer; heme iron, nitrate/nitrite, and heterocyclic amines from
219 nd dietary intake of N-nitrosodimethylamine, heme iron, nitrite, and nitrate in the Netherlands Cohor
220 type, cooking method, and related mutagens), heme iron, nitrite/nitrate, and prostate cancer in a coh
221 ith prostate cancer via mechanisms involving heme iron, nitrite/nitrate, grilling/barbecuing, and ben
222 this process, we isolated a new type of non-heme iron nitrosyl complex that is stabilized by an unex
225 To investigate the extent of endogenous heme iron nitrosylation an experimental in vitro model t
226 ion of nitrite (1 mM) considerably increased heme iron nitrosylation while a significant decrease was
232 ucine abolished the peroxidase activity, and heme iron of the variant showed a pH-dependent transitio
237 the first crystal structure of a Rieske non-heme iron oxygenase that performs an exocyclic monooxyge
239 e active site cysteine that coordinates with heme iron, permitting heme binding and dimerization to t
240 suggested to form an as-yet unobserved bound heme-iron-PN intermediate in the catalytic cycle of nitr
243 l measurements revealed a 155-mV increase in heme iron potential when bound to one of the newly ident
244 ne or in combination with the co-spray-dried heme iron, prevented primary oxidation and hexanal forma
245 teine dioxygenase (CDO) is a mononuclear non-heme iron protein that catalyzes the conversion of cyste
247 ormal human brain, proteins, lipids, and non-heme iron provide comparable contributions to tissue pha
251 e iron, the basic mechanism(s) governing sGC heme iron recycling to its NO-sensitive, reduced state r
253 using tin protoporphyrin IX (SnPP) decreased heme-iron recycling in the liver and ameliorated anemia
255 3 as the first identified physiological sGC heme iron reductase in vascular smooth muscle cells, ser
256 ing") route that enhances the rate of ferryl heme iron reduction by externally added reductants, for
258 of endometrial cancer for higher intakes of heme iron (RR: 1.24; 95% CI: 1.01, 1.53 for >/=1.63 comp
261 more reactive species such as .OH at the non-heme iron site in the His-cluster region formed by the a
265 dergoes only minor substrate binding-induced heme iron spin state shift toward high spin by compariso
267 l, but the pathways involved in distributing heme, iron-sulfur clusters, and ferrous/ferric ions to a
269 oxygen species are known to oxidize the sGC heme iron, the basic mechanism(s) governing sGC heme iro
270 lular iron-storage protein ferritin, and for heme iron, the chaperone proteins haptoglobin and hemope
273 lexes, where one NO molecule is bound to the heme iron to form a five-coordinate low-spin {FeNO}(7) s
275 nd movement through a short channel from the heme iron to solvent that is gated by the distal histidi
276 , which has a large internal tunnel from the heme iron to the C-terminal ends of the E and H helices,
278 ggests a modest positive association between heme iron, total iron, and liver intakes and endometrial
279 teins, group B vitamins, minerals especially heme iron, trace elements and other bioactive compounds.
280 ical spectra consistent with low-spin ferric heme iron (type II) in contrast to 17EE, which yields a
284 ve site cavity and irreversibly binds to the heme iron via the thiazole nitrogen, which decreases the
285 operamide, and voriconazole coordinating the heme iron via their nitrogen atoms and clotrimazole bein
287 stal structure of inhibitor 3 coordinated to heme iron was obtained, representing, to our knowledge,
289 ron, which has lower absorption than that of heme iron.We assessed the efficacy of the consumption of
290 ron, iron from meat, iron from red meat, and heme iron were all close to unity, and there were no inc
291 Y-shaped fluvoxamine coordinates the CYP46A1 heme iron, whereas the methoxy-containing arm points awa
292 hat intakes of processed meat, red meat, and heme iron, which characterized the Western dietary patte
293 8) and His(89) of alphaHb, coordinate to the heme iron, which is poised for transfer into the heme-bi
297 e association of intakes of dietary iron and heme iron with risk of postmenopausal breast cancer.
299 is long antifungal drug coordinates the P450 heme iron with the nitrogen atom of its terminal azole r