ライフサイエンスコーパス: guanidinium

1 eleased Na(+) is large enough to accommodate guanidinium(+).

2 A)(2) (GA)Pb(2) I(7) (HA=n-hexylammonium, GA=guanidinium).

3 ate distances and restricted dynamics of the guanidinium.

4 the two groups, indicating a mixed guanidine/guanidinium.

5 entionally microporous GS host phase, namely guanidinium 1,4-benzenedisulfonate (p-G(2) BDS).

6 absent in R160K EAL, which indicates that a guanidinium 14N of R160 interacts directly with the subs

7 Doing this we found that the extent to which guanidinium (a destabilizing Hofmeister cation), sulfate

8 Evidently, urea and guanidinium, although structurally similar, denature pro

9 ce (3D-PMFs) for a Na+ cation and for methyl guanidinium, an arginine analog.

10 ion was reduced by partial substitution with guanidinium, an ion which permeates the cyclic nucleotid

11 hich are generally superior to their uronium/guanidinium analogues and HOBt- or HODhbt-derived phosph

12 iting bacterial RNase P, we synthesized hexa-guanidinium and -lysyl conjugates of neomycin B and comp

13 eries of diaromatic symmetric and asymmetric guanidinium and 2-aminoimidazolinium derivatives, we rep

14 The guanidinium and carboxylate groups of substrates are tig

15 The affinity of guanidinium and Cu(II) containing hosts for polycarboxyl

16 tabilized by the alternating ordering of the guanidinium and methylammonium cations in the interlayer

17 e NaChBac, ranging in sizes from ammonium to guanidinium and tetramethylammonium; and second, for bot

18 to minute changes in the disposition of the guanidinium and the size dependence of the hydrophobic b

19 rs with neutral thiourea, positively charged guanidinium, and thiouronium units that all formed Langm

20 effects, analysis of substrate (14)N-(15)N (guanidinium)-arginine exchange effects, and comparison w

21 The evolutionary conservation of an arginine guanidinium as a metal ligand suggests a novel role for

22 Using the arginine analog methyl-guanidinium as a test case, we find that although hydroc

23 ivity of diribonucleoside to the presence of guanidinium-based catalysts compared to the more activat

24 Guanidinium binding restores the key interactions, resta

25 Herein, we report the synthesis of guanidinium bis-porphyrin tweezers 1 and fullerene carbo

26 catalysts (Co(NH(3))(6)(3+), Co(en)(3)(3+), guanidinium), but K(double dagger)(OH) >> K(NPP) for Mg(

27 loss of FVIII activity at 57 degrees C or in guanidinium by factor Xa generation assays.

28 Moreover, a short distance of 4.6 A from the guanidinium C(zeta) of the second Arg to (31)P indicates

29 Guanidinium(+) can also permeate truncated pumps, wherea

30 sults show that tetrapropylammonium, but not guanidinium, can preferentially accumulate around aromat

31 ium adduct formed by attack of Cys406 on the guanidinium carbon of L-arginine followed by the elimina

32 A key step of the synthetic route to guanidinium carboxylate 9 is Pd(0) catalyzed cleavage of

33 The zwitterionic guanidinium carboxylate 9 was shown to readily decarboxy

34 topography, builds up from a combination of guanidinium-carboxylate hydrogen bonding and pi-pi stack

35 are anchored to the fatty acid core through guanidinium-carboxylate interactions.

36 mers with different numbers and locations of guanidinium-carboxylate salt bridges were synthesized.

37 data highlight the operation of a guanidine-guanidinium catalytic dyad that can act both intermolecu

38 eivably promoted by the "built-in" guanidine/guanidinium catalytic dyad.

39 yl or alkyl esters) is able to influence the guanidinium-catalyzed hydrolysis changing the mechanism

40 ng activation of this mutant enzyme by added guanidinium cation (Gua(+)): 1 M Gua(+) stabilizes the t

41 sparagusic or, preferably, lipoic acid and a guanidinium cation polymerize into poly(disulfide)s in l

42 ic container molecule has been shown to bind guanidinium cations (blue) between the sulfonate groups

43 A molecular framework based on guanidinium cations and 1,2,4,5-tetra(4-sulfonatophenyl)

44 Incorporation of hydrogen-bonded guanidinium cations in the secondary coordination sphere

45 Chaotropic perturbation (CP) with guanidinium chloride (Gdm-Cl) reveals HDL instability by

46 Both urea and guanidinium chloride (GdmCl) are frequently used as prot

47 Thermal and Guanidinium chloride (GdmCl) induced unfolding of a vari

48 well established that low concentrations of guanidinium chloride (GdmCl) inhibit the ATPase activity

49 ons of chemical denaturants such as urea and guanidinium chloride (GdmCl) proteins expand to populate

50 r basis for protein denaturation by urea and guanidinium chloride (GdmCl) should accommodate the obse

51 The equilibrium stabilities to guanidinium chloride (GdmCl)-induced denaturation and ki

52 kinetic thiol-labeling experiments, that the guanidinium chloride (GdmCl)-induced unfolding of RNase

53 two different unfolding paths: using acid or guanidinium chloride (GdmCl).

54 bed using two chemical denaturants, urea and guanidinium chloride (GdmCl).

55 nd pyridine and the effect on structuring of guanidinium chloride (GdmCl).

56 ed by thermal and chemical denaturation with guanidinium chloride (GdmCl).

57 It was found that the addition of guanidinium chloride (GnHCl) to SDS samples (via direct

58 mine unfolding intermediates associated with guanidinium chloride (GuHCl)-induced protein denaturatio

59 f gyration, 34-35 A, is unchanged from 0-6 M guanidinium chloride and from 20-90 degrees C at pH 2.5,

60 ybrids by denaturing pairs of enzymes in 1 M guanidinium chloride and renaturing them by removing the

61 he mechanism by which the aqueous cosolvents guanidinium chloride and urea denature proteins is a mat

62 een hydrophobic and ionic species in aqueous guanidinium chloride and urea solutions using molecular

63 turant concentrations varying from 1.5-6.0 M guanidinium chloride are in excellent agreement, with an

64 centration was observed over a wide range of guanidinium chloride concentration.

65 s identical for the two unfolded proteins at guanidinium chloride concentrations >3 M, and the FRET-d

66 Treatment with guanidinium chloride demonstrated that the HNE-induced o

67 the actual decrease is approximately 3 A on guanidinium chloride denaturant dilution from 7.5 to 1 M

68 estore their enzymatic activities after heat/guanidinium chloride denaturation.

69 The known folding rate of 20 s-1 at 1.5 M guanidinium chloride in 400 microM Zn2+ provides an uppe

70 are linearly dependent on concentrations of guanidinium chloride in the measurable range from 1.7 to

71 ing in an aqueous solution of the denaturant guanidinium chloride is described.

72 ations to investigate the effect of urea and guanidinium chloride on the structure of the intrinsical

73 Increasing concentrations of guanidinium chloride produced two transitions for the Op

74 ion, the 1H-15N HSQC spectrum taken at 1.5 M guanidinium chloride reveals that only the Rd-apocyt b56

75 interaction model we show that, in urea and guanidinium chloride solutions, unfolding of an unusuall

76 tion is not significantly changed in urea or guanidinium chloride solutions.

77 lowing transfer from a buffer containing 5 m guanidinium chloride to a buffer containing 0.5 m guanid

78 Experiments often use urea and guanidinium chloride to study folding whereas the natura

79 dinium chloride to a buffer containing 0.5 m guanidinium chloride were studied by measuring the time-

80 ce spectroscopy in varying concentrations of guanidinium chloride were used to extrapolate unfolding

81 ns, we monitored their unfolding in urea and guanidinium chloride with A(230).

82 due to the favorable association of urea or guanidinium chloride with the backbone of all residues a

83 Here, we use effects of denaturants (urea, guanidinium chloride) and temperature on folding and unf

84 reases linearly as [C] (the concentration of guanidinium chloride) increases with the slope, m, that

85 sence of protein denaturants (4.0 M urea and guanidinium chloride).

86 rant are four times larger than those in 6 M guanidinium chloride, indicating a decrease in the avera

87 d in 5% (w/v) perfluoro-octanoic acid or 6 M guanidinium chloride, inserts spontaneously and folds qu

88 spectroscopic techniques to examine whether guanidinium chloride, one of the most commonly used prot

89 temperature, and chemical stability against guanidinium chloride-induced denaturation.

90 unfolding intermediate at approximately 1 M guanidinium chloride.

91 rescence at relatively low concentrations of guanidinium chloride.

92 unfolding of the protein in the presence of guanidinium chloride.

93 ns are featureless, statistical coils in 6 M guanidinium chloride.

94 toward thermal denaturation and unfolding by guanidinium chloride.

95 dary and tertiary structure by the chaotrope guanidinium chloride.

96 ino or guanidino function indicated that the guanidinium compound showed the higher efficacy against

97 irst, we formed the LPD nanoparticles with a guanidinium-containing cationic lipid, i.e. N,N-disteary

98 inyl) aminoethyl ammonium chloride (DSAA), a guanidinium-containing cationic lipid, than with a commo

99 The shortest distance of 4.0 A, found for a guanidinium Czeta at the beta-turn, suggests N-H...O-P h

100 id phosphates indicate that both the Arg(10) guanidinium Czeta atom and the Lys(13) Cepsilon atom are

101 We determined this via guanidinium denaturations performed in the presence of v

102 The guanidinium-denatured state of the N-domain of phosphogl

103 ace to the availability of STX and an allied guanidinium derivative, tetrodotoxin.

104 g K(+), and (ii) induction of pump-mediated, guanidinium-derivative-carried inward current at negativ

105 Furthermore, actions by guanidinium(+) derivatives suggest that Na(+) binds to s

106 The mechanism by which urea and guanidinium destabilize protein structure is controversi

107 pic data do not differentiate the protonated guanidinium from the neutral guanidino group but suggest

108 he stacking interaction between the cationic guanidinium functionality of arginine and the indole rin

109 We synthesized a library of guanidinium-functionalized poly(oxanorborneneimide) (PON

110 d complementary hydrogen bonding between the guanidinium (G) ions and the sulfonate (S) groups of TSP

111 I(3) QDs, which is dominated by the cationic guanidinium (GA(+) ) rather than the SCN(-) , maintainin

112 rmamidinium (FA), dimethylammonium (DMA), or guanidinium (GA), with a series of A-site cations varyin

113 ded protein states, the denaturants urea and guanidinium (Gdm(+)) accumulate at the surface of folded

114 te salts of tetrapropylammonium (TPA(+)) and guanidinium (Gdm(+)) on the conformational stabilities o

115 Guanidinium (Gdm+) chloride is a powerful protein denatu

116 e performed to probe the mechanisms by which guanidinium (Gnd(+)) salts influence the stability of th

117 A cone-calix[4]arene derivative, featuring a guanidinium group and a Cu(II) ion ligated to a 1,4,7-tr

118 simultaneous cation-pai contacts between the guanidinium group and flanking nucleobases.

119 Arginine contains the guanidinium group and thus has structural similarity to

120 uorophore lowers the pK(a) of the side-chain guanidinium group by several orders of magnitude, to 9.0

121 Asp166 engage in ionic interactions with the guanidinium group in the C406A ADI.

122 from the first-generation GPNAs in that the guanidinium group is installed at the gamma- instead of

123 in can retain substantial disorder while the guanidinium group maintains its salt bridges; thus, the

124 acking, this pocket has been filled with the guanidinium group of an arginine from a neighboring mole

125 and the primary specificity pocket, and the guanidinium group of Arg-187 penetrates the protein core

126 gate base stabilized by interaction with the guanidinium group of Arg-410.

127 hydroxyl group of alpha-D-galactose and the guanidinium group of Arg37.

128 group of the bound lysine side chain and the guanidinium group of arginine both make multiple hydroge

129 ucleophilic attack on the carbon atom of the guanidinium group of arginine, and His-278, which serves

130 The aminopyridine ring mimics the guanidinium group of L-arginine and functions as an anch

131 kely by binding in the pocket vacated by the guanidinium group of R181.

132 for the enhancing ability of DAFP-1 and the guanidinium group of the arginine residue is important f

133 Furthermore, the position of the guanidinium group of the bound substrate relative to the

134 ectrostatic interaction observed between the guanidinium group of the essential arginine and the carb

135 pothesized that the bound positively charged guanidinium group of the L-arginine substrate further st

136 RF1) bound to histone H3 peptides, where the guanidinium group of unmodified R2 forms an extensive in

137 tramolecular hydrogen atom transfer from the guanidinium group onto the amide group is not observed.

138 3 is not due to the interactions of the R84 guanidinium group or the W89 indole ring with the substr

139 e generation is exquisitely sensitive to the guanidinium group spacing when the phosphate groups are

140 stabilized in the His432Arg structure by the guanidinium group that also restricts the access of nucl

141 nique hydration properties of the side chain guanidinium group which facilitates its movement through

142 led creatine (with the isotopic label in the guanidinium group) was employed as model compound.

143 monoester forms a salt bridge with the Arg95 guanidinium group, thereby weakening RNase III engagemen

144 rong cationic resonance stabilization of the guanidinium group, with the nonprotonated group also sta

145 Guanidinium groups and increasing positive charge on the

146 This mechanism unveils the essential role of guanidinium groups and two universal cell components: fa

147 We conclude that having guanidinium groups as anion-exchange sites improves the

148 al anion-exchange membrane (AEM), containing guanidinium groups as the anion-exchanging sites (Gu-100

149 two phosphates down to less than 5 A, where guanidinium groups can stack "face to face".

150 presence of the stacking element next to the guanidinium groups causes a decrease in the number of ho

151 he strength of hydrophobic interactions, and guanidinium groups eliminate measurable hydrophobic inte

152 ditional structural features imparted by the guanidinium groups facilitate fast and reversible H2 add

153 of a competition between the phosphoryl and guanidinium groups for the same lone pair on the bridgin

154 dology to introduce chiral alpha-substituted guanidinium groups into molecules.

155 A polymer functionalized with guanidinium groups is effectively internalized by cells

156 interactions between the positively charged guanidinium groups of Arg534 and Arg536 and a P1 moiety

157 the number and spatial relationships of the guanidinium groups on delivery and organelle/organ local

158 sphate interactions exist in penetratin, and guanidinium groups play a stronger structural role than

159 e were found with MCF-7 cells when up to six guanidinium groups were positioned on the polyproline he

160 the ammonium groups have been converted into guanidinium groups, can carry large (>300 kDa) bioactive

161 contact with the cell exterior interact with guanidinium groups, leading to a transient membrane chan

162 Phosphate ions are known to complex guanidinium groups, which are the side chains of arginin

163 ure of a hydrogen bonding network around the guanidinium groups.

164 , and the periphery consists of ammonium and guanidinium groups.

165 e general formula [Am]Mn(H2POO)3, where Am = guanidinium (GUA), formamidinium (FA), imidazolium, tria

166 The additional guanidinium (guanidine) group in the diprotonated (monop

167 e, we have synthesized three self-exfoliated guanidinium halide based ionic covalent organic nanoshee

168 l of non-mineralized constituents with 4.0 M guanidinium HCl.

169 Results for guanidinium, however, are contrary to the expectation th

170 uration curve, as the transition spans 0-7 M guanidinium hydrochloride (GdmCl).

171 h a Trp59-heme distance close to that of the guanidinium hydrochloride (GdnHCl) denatured state is pr

172 well as solutions containing the denaturants guanidinium hydrochloride and urea.

173 ely indistinguishable from that populated in guanidinium hydrochloride solutions, suggesting that the

174 stability as shown by circular dichroism and guanidinium hydrochloride studies.

175 hat folding of reduced cytochrome c from the guanidinium hydrochloride-induced unfolded ensemble in d

176 r dichroism, and sensitivity to unfolding in guanidinium hydrochloride.

177 binds it as a crystalline carbonate salt by guanidinium hydrogen bonding.

178 Our results support a role for urea and guanidinium in assisting in the solvation of nonpolar su

179 equilibrium transitions upon titration with guanidinium, in addition to the major refolding event.

180 ease TOF and may engage in an intramolecular guanidinium interaction that assists in H2 activation, w

181 In contrast, the l-Arg guanidinium interacts more weakly and equally with both

182 The arginine guanidinium interacts with non-polar aromatic and alipha

183 droamination cascade constructs the bicyclic guanidinium ion core from a alkynyl bisguanidine.

184 are then documented using a new C2-symmetric guanidinium ion derivative.

185 The compounds were inhibitors of [(14)C]guanidinium ion flux in rat forebrain synaptosomes and d

186 nge is triggered by the binding of a ligand (guanidinium ion) to a site that in the wild-type protein

187 269A mutant GPDH-catalyzed reaction by 1.0 M guanidinium ion, and the transition state for the reacti

188 for multivalent contacts through arginine's guanidinium ion.

189 tween ion pairs is greatly diminished by the guanidinium ion.

190 -Fc fusion proteins treated with acid, urea, guanidinium, ionic detergents, acrylamide, and thiol- an

191 nd cooperatively bound to 5 molecules of the guanidinium ionophore, suggesting hydrogen-bond-directed

192 D) hydrogen-bonding network of complementary guanidinium ions (G) and sulfonate moieties (S), the so-

193 ear relationship between the amount of bound guanidinium ions and the rate of guest exchange.

194 s such as ureas, thioureas, squaramides, and guanidinium ions enjoy widespread use as effective catal

195 This phosphate-mediated translocation of guanidinium ions may underlie the activity of other Arg-

196 nism by which chiral arylpyrrole-substituted guanidinium ions promote the Claisen rearrangement of O-

197 The current can be carried by guanidinium ions, suggesting that this is the pathway fo

198 ring and indicate a bimodal hydration of the guanidinium ions, with the N-H groups making well-ordere

199 The deprotected guanidinium is configurationally stable under more acidi

200 , Alkaline Method, Urea Method, Salt Method, Guanidinium Isothiocyanate (GuSCN) Method, Wizard Method

201 2O)5(2-)]n sulfate-water clusters with a bis(guanidinium) ligand.

202 displayed a much larger affinity than other guanidinium-like derivatives from the same series with c

203 jugated C horizontal lineN double bounds and guanidinium-like structures were found to be resistant t

204 here the synthesis of NHA analogues bearing guanidinium methyl or ethyl substitutions and their inve

205 Guanidinium(+), methylguanidinium(+), and aminoguanidini

206 zed through a Mitsunobu reaction between the guanidinium mimetics and the corresponding central templ

207 Guanidinium mimetics with enhaced rigidity (i.e., (2-pyr

208 of the protein, facilitate placement of the guanidinium moieties near polar groups or bulk water.

209 vitro assay) and the removal of problematic guanidinium moieties.

210 ctions through increased surface area of the guanidinium moiety and greater delocalization of positiv

211 g(70) assumes a multivalent role through its guanidinium moiety interacting with all active site enzy

212 f backbone amides, IroE employs the atypical guanidinium moiety of Arg 130.

213 The guanidinium moiety of netropsin binds in a narrow part o

214 structures of three variants showing how the guanidinium moiety of the Arg side chain is effectively

215 ay structures deviates from the plane of the guanidinium moiety substantially, indicating that the OH

216 e original hapten design, in which a charged guanidinium moiety was strategically used to elicit an a

217 e spirocyclic ether rings of the pentacyclic guanidinium moiety.

218 a approximately 3 A (bonding) distance to a guanidinium N of Arg183.

219 itrogen geometry, different from that of the guanidinium N(omega) nitrogen of l-arginine, allows a hy

220 o kinds of hexagonal molecular tiles, a tris(guanidinium)nitrate cluster and a hexa(4-sulfonatophenyl

221 Because guanidinium(o)(+) can also traverse normal Na/K pumps in

222 provide evidence that in S. cerevisiae Cdc3 guanidinium occupies the site of a 'missing' Arg side ch

223 te complex bound to two catalytic sites, the guanidinium of betaR(337) is within 2.9 A of the alpha-o

224 The guanidinium of the invariant Arg-170 is positioned to po

225 ed" inclusion cavities like those in related guanidinium organodisulfonate host frameworks.

226 cal hexagonal phases reported previously for guanidinium organomonosulfonate inclusion compounds, but

227 Guest-free guanidinium organomonosulfonates (GMS) and their inclusi

228 nation that relies on a versatile toolkit of guanidinium organosulfonate hydrogen-bonded host framewo

229 Guanidinium organosulfonates (GSs) are a large and well-

230 cond Arg to (31)P indicates the existence of guanidinium phosphate hydrogen bonding and salt bridges.

231 ular import of penetratin, which may involve guanidinium-phosphate complexation between the peptide a

232 ng force for this toroidal pore formation is guanidinium-phosphate complexation, where the cationic A

233 alt bridge interaction was revealed by short guanidinium-phosphate distances and restricted dynamics

234 These solid-state NMR data indicate that guanidinium-phosphate interactions exist in penetratin,

235 nd aliphatic side chains above and below the guanidinium plane while hydrogen bonding with polar side

236 Furthermore, the guanidinium planes of K65R and Arg(72) were stacked in t

237 The guanidinium planes of the arginines K65R and Arg(72) wer

238 (+)-Saxitoxin, a naturally occurring guanidinium poison, functions as a potent, selective, an

239 lculations were carried out to determine the guanidinium promoted activation energy of pseudorotation

240 We propose that guanidinium reactivates a latent septin assembly pathway

241 Neutral thiourea and the single-chain guanidinium receptor did not bind phosphate, revealing t

242 phosphate binding to the double alkyl chain guanidinium receptor, whereas surface pressure isotherm

243 Amidinium and guanidinium receptors are shown to act as strongly coord

244 cation and even of the large organic cation guanidinium, reminiscent of Shaker's omega pore.

245 Guanidinium rescue with the R226A SsuD variant resulted

246 thesized the first members of a new class of guanidinium-rich amphipathic oligocarbonates that noncov

247 troduces a new and highly effective class of guanidinium-rich cell-penetrating transporters and metho

248 a fluorophore-labeled octaarginine (a model guanidinium-rich CPP) and compared with the correspondin

249 g nanoparticles formed by association with a guanidinium-rich molecular transporter.

250 describe a general molecular method based on guanidinium-rich molecular transporters (GR-MoTrs) for b

251 A new family of guanidinium-rich molecular transporters featuring a nove

252 Guanidinium-rich molecules, such as cell-penetrating pep

253 uperior in cell uptake to previously studied guanidinium-rich oligocarbonates and oligoarginines, sho

254 ter cells, outperforming previously reported guanidinium-rich oligocarbonates and peptide transporter

255 ive cell-penetrating molecular transporters, guanidinium-rich oligophosphoesters, are described.

256 Guanidinium-rich scaffolds facilitate cellular transloca

257 ulfide-exchange polymerization, we show that guanidinium-rich siCPDs grow on fluorescent substrates w

258 relaxation primarily reflects persistence of guanidinium salt bridges and correlates well with simula

259 A new ionic liquid matrix (ILM), a guanidinium salt of alpha-cyano-4-hydroxycinnamic acid,

260 hoice of the anion of an achiral TBD-derived guanidinium salt, used as cocatalyst for proline, allows

261 by a two-fold cyclization, which resulted in guanidinium salts 8 and 10.

262 helps explain the circumstances under which guanidinium salts can act as powerful and versatile prot

263 account of the synthesis of chiral bicyclic guanidinium salts is presented.

264 As was previously found for guanidinium salts of carbonate, mesoscopic-scale cluster

265 determine how solutes such as urea, sugars, guanidinium salts, and trimethylamine N-oxide affect the

266 tempted syntheses of two additional bicyclic guanidinium salts.

267 ericidal activity appears not to require the guanidinium side chain of Arg at those two positions.

268 The guanidinium side chain of iminoarginine forms a hydrogen

269 lorine-substituted stereogenic center on the guanidinium side chain of SynOxA.

270 rate that (1) synergy between catecholic and guanidinium side chains similarly promotes adhesion, (2)

271 ng close approach of the lipid headgroups to guanidinium side chains.

272 f the H-protein tube is lined with amide and guanidinium side chains.

273 rby arginine residue (R48) participates in a guanidinium stacking interaction with R28 from the other

274 lly loops 4 and 5), thereby allowing diverse guanidinium substrates to be accommodated for catalysis.

275 als based on hydrogen-bonded two-dimensional guanidinium-sulfonate (GS) networks is demonstrated by u

276 teract with the zwitterionic, trisubstituted guanidinium sweeteners as well as TES, specific differen

277 zene moiety, one threoninol terminal and one guanidinium terminal) molecules are introduced into the

278 ism by which the common electrolyte additive guanidinium thiocyanate (GdmSCN) improves efficiency in

279 We found that the addition of guanidinium thiocyanate (GuaSCN) resulted in marked impr

280 letely removed by 3min injections of biotin, guanidinium thiocyanate, pepsin, and SDS, which makes it

281 xtraction with an acidic solution containing guanidinium thiocyanate, sodium acetate, phenol and chlo

282 essing (referred to as "LE-TA") triggered by guanidinium thiocyanate.

283 cotinamide, imidazolium, benzimidazolium and guanidinium threading components, and macrocyclic isopht

284 Guanidinium titration studies show that the ferric state

285 activity is resurrected by externally added guanidinium to 2.3% of wild-type EAL.

286 chirality and functional groups adjacent to guanidiniums to modulate specificity and affinity in rec

287 d peptide displacement to "lift" the charged guanidinium toward the bilayer surface.

288 A stereoselective synthesis of the bis-guanidinium toxin (+)-saxitoxin (STX), the agent infamou

289 y relationship (SAR) study involving the bis-guanidinium toxin saxitoxin (STX), modified saxitoxins,

290 critical role in high-affinity block by the guanidinium toxin tetrodotoxin, primarily due to an elec

291 The bis-guanidinium toxins are a collection of natural products

292 a ligated metal ion (Cu(II), Zn(II)) with a guanidinium unit connected by a 1,2-vicinal calix[4]aren

293 Intrinsic ionic guanidinium unit plays the pivotal role for both self-ex

294 the side arm over the three nitrogens in the guanidinium unit results in electrochemical behavior sim

295 H3)(2+), decorated at the upper rim with two guanidinium units and a phenolic hydroxyl in an ABAH fun

296 ormation and functionalized with two to four guanidinium units at the upper rim were synthesized and

297 The catalytic activity of the guanidinium units toward the cleavage of phosphoric dies

298 ents, finding that the nature of the cation (guanidinium vs 2-aminoimidazolinium) significantly influ

299 Guanidinium was chosen for its specific binding properti

300 hydrogen-bond-directed interactions of each guanidinium with a few of 10 negatively charged sulfo or