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1 VSD binding enhances secretion in vivo subject to voltag
2 VSD charge displacements within the membrane electric fi
3 VSD imaging may thus be a promising technique to trace T
4 VSD IV did not appear to participate in channel opening.
5 VSD movements are coupled to BK channel opening with a u
6 VSDs consist of four transmembrane segments, S1-S4, form
7 VSDs sense changes in the transmembrane voltage and conv
8 1 may strengthen the coupling between hKv1.3-VSD movement and pore opening, inducing the modification
12 lividans) as a surrogate because it lacks a VSD and exhibits an activation coupled to C-type inactiv
13 itial step that makes the resting state of a VSD accessible to a variety of biophysical and structura
16 ly independent but biased by VSD activation, VSDs II and III were each found to supply approximately
17 subject to voltage, and mutations affecting VSD conformation alter binding and secretion in parallel
20 n and 89 children at MSMC undergoing ASD and VSD closure, respectively, were compared with 3103 ASD a
21 n costs fell by 33% and 35% at MSMC (ASD and VSD, respectively), whereas they rose by 16% to 17% nati
23 ltage dependence of both channel opening and VSD activation, reported by a fluorophore labeling posit
24 ures during the third month of pregnancy and VSD in two pollution model.Our results contribute to the
25 n of the voltage dependence of the available VSD structures, at present, they all represent the activ
26 ally highly significant correlations between VSD function and physicochemical properties of gating po
27 al underpinnings of the relationship between VSD movement and fluorophore response remain unclear.
29 g is intrinsically independent but biased by VSD activation, VSDs II and III were each found to suppl
31 ltage-sensing residues, we probed the BK(Ca) VSD for evidence of cooperativity between charge-carryin
32 fferent mechanisms, other than the canonical VSD-pore coupling, are at work in voltage-dependent ion
33 in (VSD) with strong similarity to canonical VSDs in voltage-dependent cation channels and enzymes.
34 exclude the possibility that the Hv channel VSD assembles with an as yet unknown protein in the cell
37 bset of plant SNAREs commandeer K(+) channel VSDs to coordinate membrane trafficking with K(+) uptake
38 pollutant model, associations with all CHDs, VSD, and TF for O3 were generally consistent compared to
41 relaxation EPR spectroscopy measurement, Ci-VSD reconstitutes essentially randomly in proteoliposome
44 oltage dependence of the VSD from Ci-VSP (Ci-VSD) is dramatically right shifted, so that at 0 mV it p
51 defect (ASD) and ventricular septal defect (VSD) surgeries in children 2 months to 19 years of age a
52 sed risk of CHDs, ventricular septal defect (VSD), and tetralogy of fallot (TF) with increasing O3 ex
53 right ventricle, ventricular septal defect (VSD), atrioventricular (AV) cushion defects, and thicken
58 the incidence of ventricular septal defects (VSDs) caused by a heterozygous Nkx2-5 knockout mutation.
60 % penetrance and ventricular septal defects (VSDs) with ~15% penetrance; Fz2(+/-);Fz7(-/-) mice exhib
61 termed muscular ventricular septal defects (VSDs), are common, yet less is known about how they aris
62 dition, the stabilization of the depolarized VSD conformation, a hallmark for most Kv channels, requi
66 utations slowed INa activation, although DII-VSD activation occurred at higher potentials (A735V) or
69 current activation, indicating that the DII-VSD allosterically regulates the rate of INa activation
71 acellular media within the DI, DII, and DIII VSDs are approximately 2 A long, similar to those of K(v
73 conformational changes within the 4 (DI-DIV) VSDs to define molecular mechanisms of NaV1.5 modulation
75 g a proton-permeable voltage-sensing domain (VSD) and lacking the pore domain typical of other voltag
77 ng one transmembrane voltage-sensing domain (VSD) and two intracellular high affinity Ca(2+)-sensing
79 1 interacts with the voltage sensing domain (VSD) of Kv1.3 through W172 in the transmembrane segment
81 the structure of the voltage-sensing domain (VSD) of the Kv1.2 potassium channel in the resting state
84 he S4 segment in the voltage-sensing domain (VSD) spontaneously converts into a 3(10) helix over a st
85 are carried out by a voltage-sensing domain (VSD) with strong similarity to canonical VSDs in voltage
86 s found to contain a voltage-sensing domain (VSD), similar to those of voltage-gated sodium, potassiu
87 teractions among the voltage sensing domain (VSD), the cytosolic domain (CTD), and the pore gate doma
88 annels share a common voltage sensor domain (VSD) consisting of four transmembrane helices, including
91 ation of the isolated Voltage-Sensor Domain (VSD) of the prokaryotic Na(+) channel NaChBac in a lipid
92 nzymes regulated by a voltage-sensor domain (VSD) related to the VSD found in voltage-gated ion chann
93 adopt a transmembrane voltage sensor domain (VSD) that moves in response to physiological variations
96 Gating charges in voltage-sensing domains (VSD) of voltage-sensitive ion channels and enzymes are c
100 whereby the NaV1.5 voltage-sensing domains (VSDs) are perturbed to pathologically or therapeutically
101 hanges of the KCNQ3 voltage-sensing domains (VSDs) in response to voltage, retigabine, and PIP2.
103 potential via their voltage-sensing domains (VSDs) that control the status of the S6 bundle crossing
107 x consisting of two voltage-sensing domains (VSDs), each containing a gated proton permeation pathway
108 d ion channels four voltage-sensing domains (VSDs), one from each subunit, control one ion permeation
115 movement of all four voltage sensor domains (VSDs) followed by channel opening via a last concerted c
116 membrane, binds the voltage sensor domains (VSDs) of K(+) channels to confer a voltage dependence on
117 el suggests that the voltage-sensor domains (VSDs) of the reported structure are not fully activated.
119 The S4 helix of voltage sensor domains (VSDs) transfers its gating charges across the membrane e
120 nferred through four voltage-sensor domains (VSDs) where positively charged residues in the fourth tr
121 the channels include voltage-sensor domains (VSDs), their conductance is thought to be independent of
122 d of four homologous voltage sensor domains (VSDs; DI, DII, DIII, and DIV) in which their S4 segments
124 lation and wide-scale voltage sensitive dye (VSD) imaging in mice to map altered cortical connectivit
125 tials, we developed a voltage-sensitive dye (VSD) imaging technique based on a double-sided microscop
126 optical imaging with voltage-sensitive dye (VSD) in an animal experimental setting using anaesthetiz
127 d an orderly shift of voltage-sensitive dye (VSD) signals along the AI tonotopic axis, demonstrating
129 wever, the available voltage-sensitive dyes (VSDs) are not always spectrally compatible with newly av
138 network as a whole, scaling the ChR2-evoked VSD responses from the stroke groups to match the sham g
139 % penetrance; Fz2(+/-);Fz7(-/-) mice exhibit VSDs with ~50% penetrance and cleft palate with less tha
140 Here, we describe a series of 19 fluorinated VSDs based on the hemicyanine class of chromophores.
143 voltage sensors, we discovered that the four VSDs of CaV1.2 channels undergo voltage-evoked conformat
144 ural model of the resting states of the four VSDs of Na(v)1.4 relaxed in their membrane/solution envi
146 hich act as open channel blockers on the Hv1 VSD and find that a highly conserved phenylalanine in th
147 nidinothiazole derivatives block the two Hv1 VSDs in a cooperative way, and use one of the compounds
148 ically charged residues across a hydrophobic VSD constriction called the gating pore or hydrophobic p
149 c transport measurements of the interlayer I-VSD characteristics indicate that layer-indirect e-h pai
151 n = 10), we collected spontaneous changes in VSD signal that reflect underlying membrane potential ch
154 repair of conotruncal anomalies, intramural VSDs are uniquely associated with postoperative morbidit
160 olecular dynamics simulation of the isolated VSD from the KvAP channel in a hydrated lipid bilayer on
161 e the activated conformation of the isolated-VSD in the membrane using restrain-driven molecular dyna
162 hat a conformational change in the domain IV VSD after depolarization is necessary and sufficient to
163 ed that the micelle uniformly coats the KvAP VSD and approximates the chemical environment of a phosp
165 nerate a model of the down state of the KvAP VSD using molecular-dynamics simulations of the VSD in a
166 in comparison to the membrane-embedded KvAP-VSD, the structural dynamics of the NaChBac-VSD reveals
167 ty of I287 are important to control the main VSD energy barrier underlying transitions between restin
177 plementation assays we show that the NaChBac-VSD can provide a conduit to the transport of ions in th
178 verall three-dimensional fold of the NaChBac-VSD closely mirrors those seen in KvAP, Kv1.2, Kv1.2-2.1
179 -VSD, the structural dynamics of the NaChBac-VSD reveals a much tighter helix packing, with subtle di
180 to voltage and the photostability of the new VSDs in a series of experimental preparations ranging in
181 excitation wavelengths afforded by these new VSDs spans 440-670 nm; the two-photon excitation range i
184 tcome compared with those with nonintramural VSDs or no residual VSD (14 of 49 [29%] versus 15 of 207
185 stay compared with those with nonintramural VSDs or no residual VSD (20 days [interquartile range, 1
186 lts suggest that the overall architecture of VSD's is remarkably conserved among K(+) and Na(+) chann
187 that the kinetics and voltage dependence of VSD movement in Ci-VSP can be tuned over 2 orders of mag
189 utated subunits points to an independence of VSD movements, with each subunit incrementally contribut
192 fast kinetic components in the activation of VSDs II and III were compatible with the ionic current p
193 a, Wnt5a or Wnt11, an increased frequency of VSDs is observed with Dvl3, Wnt3a and Wnt11; an increase
198 charge, thereby confirming that the reported VSD structure is likely an intermediate along the channe
201 those with nonintramural VSDs or no residual VSD (14 of 49 [29%] versus 15 of 207 [7%] versus 6 of 18
202 those with nonintramural VSDs or no residual VSD (20 days [interquartile range, 11-42 days] versus 7
204 cellular caged Ca(2+), we optically resolved VSD activation prompted by Ca(2+) binding to the gating
207 tage-activated ion channels, voltage sensor (VSD) activation induces pore opening via VSD-pore coupli
210 ith the consensus model of the resting state VSD and the spin-spin distance histograms from ESR/DEER
211 ivity, the topographic order of subthreshold VSD maps was reduced in layer IV and even further degrad
214 val up to 40 years after successful surgical VSD closure is slightly lower than in the general Dutch
216 ts affected in the trafficking of C-terminal VSD containing proteins, we isolated the ribosomal bioge
217 tial for intracellular signals to affect the VSD in order to modulate the function of its host molecu
218 igate the mechanism of how KCNE1 affects the VSD to alter the voltage dependence of channel activatio
219 ocally, mutations in the Slo1 that alter the VSD-CTD interaction can specifically change the effects
220 teract with the VSD or the CTD and alter the VSD-CTD interface of the Slo1, which enables the beta su
223 d how the interdomain interactions among the VSD, CTD, and PGD are altered by the beta subunits to af
225 disrupt the disulfide bond formation at the VSD-CTD interface of mouse Slo1, indicating that the bet
227 a putative binding site located between the VSD and the TRP box, disclosing differences in the bindi
228 In conclusion, our data reveal that both the VSD and the lipid phosphatase domain of Mm-VSP are funct
230 Mg(2)(+) activated K(+) channels contain the VSD and a large cytosolic domain (CTD) that binds Ca(2)(
231 ker K(+) channel's pore domain (PD) from the VSD prevented the mode-shift of the gating currents.
234 The location of the activation gate in the VSD is unknown and open channel blockers for VSDs have n
238 nd fourth (S4) transmembrane segments of the VSD alters the equilibrium between resting and active co
239 ated at positions located in the core of the VSD and apply mutant cycle analysis to determine how the
241 To address whether the functions of the VSD and phosphatase domain are retained in Mm-VSP, we to
243 be the principal functional component of the VSD because it carries, in most channels, a large portio
245 structure and phospholipid interface of the VSD from the voltage-dependent K(+) channel KvAP (prokar
249 cantly perturb the voltage dependence of the VSD movement, suggesting a unique voltage sensing mechan
252 nalysis of transient sensing currents of the VSD revealed distinct roles for the N-terminal (M240-S24
253 e stimuli, revealing the adaptability of the VSD to its host molecules and showing the potential for
254 ydrophobic plug that seals the center of the VSD, as suggested by molecular dynamics simulations.
255 re for the resting state conformation of the VSD, in agreement with experiments showing that the larg
256 xation experiments, we show that much of the VSD, including the pronounced kink in S3 and the S3-S4 p
257 ial, acting upon key charged residues of the VSD, reveals that the applied field varies rapidly over
259 hin the VSD and with an inherent bias of the VSD, when hydrated around a central Phe residue, to the
261 derives from the different mechanisms of the VSD-pore coupling that lead to the IO and AO states, res
267 prevent the effect of Ca(2+) release on the VSD, revealing a functionally distinct interaction betwe
269 ence of channel activation, we perturbed the VSD of Kv7.1 by mutagenesis and chemical modification in
270 termediate state to the activated state, the VSD-pore coupling has less efficacy in opening the pore,
272 s, known as omega-currents, pass through the VSD and are distinct from K(+) currents passing through
274 n activation, outward S4 motion tightens the VSD-pore linker, perturbing linker-S6-helix packing.
277 The Mm-VSP phosphatase domain, fused to the VSD of a nonmammalian VSP, was also functional: activati
279 at the pore in KCNQ1 channels opens when the VSD activates to both intermediate and fully activated s
280 ch that a beta subunit may interact with the VSD or the CTD and alter the VSD-CTD interface of the Sl
281 S4 toward a water-filled crevice within the VSD and allows salt-bridge interactions with negatively
282 hydration of amino acid residues within the VSD and with an inherent bias of the VSD, when hydrated
287 s of the first transmembrane segments of the VSDs form the intersubunit interface that mediates coupl
291 -sensitive KCNQ channels that contributes to VSD-pore coupling via PIP2, and thereby influences the u
292 ivation of Hv1 involves a process similar to VSD relaxation, a process previously described for volta
293 sitions R3 next to D112 in the transmembrane VSD to form the ion selectivity filter in the channel's
295 from the closed to the open state in the two VSDs are known to occur cooperatively; however, the unde
296 of the length of the S3-S4 linker in various VSD-containing proteins may produce differential VSD rel
298 tructures, its transplantation in the Ci-VSP VSD scaffold yielded similar results as the native Ci-VS
300 ast intracortical inhibition detectable with VSD imaging, indicated weakened inhibition as an importa
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