Reconstructing voltage sensor-pore interaction from a fluorescence scan of a voltage-gated K+ channel.

Abstract:

:X-ray crystallography has made considerable recent progress in providing static structures of ion channels. Here we describe a complementary method-systematic fluorescence scanning-that reveals the structural dynamics of a channel. Local protein motion was measured from changes in the fluorescent intensity of a fluorophore attached at one of 37 positions in the pore domain and in the S4 voltage sensor of the Shaker K+ channel. The local rearrangements that accompany activation and slow inactivation were mapped onto the homologous structure of the KcsA channel and onto models of S4. The results place clear constraints on S4 location, voltage-dependent movement, and the mechanism of coupling of S4 motion to the operation of the slow inactivation gate in the pore domain.

journal_name

Neuron

journal_title

Neuron

authors

Gandhi CS,Loots E,Isacoff EY

doi

10.1016/s0896-6273(00)00068-4

subject

Has Abstract

pub_date

2000-09-01 00:00:00

pages

585-95

issue

3

eissn

0896-6273

issn

1097-4199

pii

S0896-6273(00)00068-4

journal_volume

27

pub_type

杂志文章

相关文献

NEURON文献大全
  • Unmanageable motivation in addiction: a pathology in prefrontal-accumbens glutamate transmission.

    abstract::Prime diagnostic criteria for drug addiction include uncontrollable urges to obtain drugs and reduced behavioral responding for natural rewards. Cellular adaptations in the glutamate projection from the prefrontal cortex (PFC) to the nucleus accumbens have been discovered in rats withdrawn from cocaine that may underl...

    journal_title:Neuron

    pub_type: 杂志文章,评审

    doi:10.1016/j.neuron.2005.02.005

    authors: Kalivas PW,Volkow N,Seamans J

    更新日期:2005-03-03 00:00:00

  • Parkin: a multipurpose neuroprotective agent?

    abstract::An autosomal recessive juvenile-onset form of Parkinson's disease (AR-JP) is caused by loss-of-function mutations of the parkin gene, which encodes a ubiquitin-protein ligase. Three recent reports demonstrate that parkin can protect neurons from diverse cellular insults, including alpha-synuclein toxicity, proteasomal...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/s0896-6273(03)00201-0

    authors: Feany MB,Pallanck LJ

    更新日期:2003-04-10 00:00:00

  • A neural representation of prior information during perceptual inference.

    abstract::Perceptual inference is biased by foreknowledge about what is probable or possible. How prior expectations are neurally represented during visual perception, however, remains unknown. We used functional magnetic resonance imaging to measure brain activity in humans judging simple visual stimuli. Perceptual decisions w...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/j.neuron.2008.05.021

    authors: Summerfield C,Koechlin E

    更新日期:2008-07-31 00:00:00

  • EPAC null mutation impairs learning and social interactions via aberrant regulation of miR-124 and Zif268 translation.

    abstract::EPAC proteins are the guanine nucleotide exchange factors that act as the intracellular receptors for cyclic AMP. Two variants of EPAC genes including EPAC1 and EPAC2 are cloned and are widely expressed throughout the brain. But, their functions in the brain remain unknown. Here, we genetically delete EPAC1 (EPAC1(-/-...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/j.neuron.2012.02.003

    authors: Yang Y,Shu X,Liu D,Shang Y,Wu Y,Pei L,Xu X,Tian Q,Zhang J,Qian K,Wang YX,Petralia RS,Tu W,Zhu LQ,Wang JZ,Lu Y

    更新日期:2012-02-23 00:00:00

  • Retrograde inhibition of presynaptic calcium influx by endogenous cannabinoids at excitatory synapses onto Purkinje cells.

    abstract::Brief depolarization of cerebellar Purkinje cells was found to inhibit parallel fiber and climbing fiber EPSCs for tens of seconds. This depolarization-induced suppression of excitation (DSE) is accompanied by altered paired-pulse plasticity, suggesting a presynaptic locus. Fluorometric imaging revealed that postsynap...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/s0896-6273(01)00246-x

    authors: Kreitzer AC,Regehr WG

    更新日期:2001-03-01 00:00:00

  • Organization and evolution of brain lipidome revealed by large-scale analysis of human, chimpanzee, macaque, and mouse tissues.

    abstract::Lipids are prominent components of the nervous system. Here we performed a large-scale mass spectrometry-based analysis of the lipid composition of three brain regions as well as kidney and skeletal muscle of humans, chimpanzees, rhesus macaques, and mice. The human brain shows the most distinct lipid composition: 76%...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/j.neuron.2015.01.003

    authors: Bozek K,Wei Y,Yan Z,Liu X,Xiong J,Sugimoto M,Tomita M,Pääbo S,Sherwood CC,Hof PR,Ely JJ,Li Y,Steinhauser D,Willmitzer L,Giavalisco P,Khaitovich P

    更新日期:2015-02-18 00:00:00

  • FGF-2-responsive neural stem cell proliferation requires CCg, a novel autocrine/paracrine cofactor.

    abstract::We have purified and characterized a factor, from the conditioned medium of neural stem cell cultures, which is required for fibroblast growth factor 2's (FGF-2) mitogenic activity on neural stem cells. This autocrine/paracrine cofactor is a glycosylated form of cystatin C (CCg), whose N-glycosylation is required for ...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/s0896-6273(00)00119-7

    authors: Taupin P,Ray J,Fischer WH,Suhr ST,Hakansson K,Grubb A,Gage FH

    更新日期:2000-11-01 00:00:00

  • Thalamic Reticular Dysfunction as a Circuit Endophenotype in Neurodevelopmental Disorders.

    abstract::Diagnoses of behavioral disorders such as autism spectrum disorder and schizophrenia are based on symptomatic descriptions that have been difficult to connect to mechanism. Although psychiatric genetics provide insight into the genetic underpinning of such disorders, with a majority of cases explained by polygenic fac...

    journal_title:Neuron

    pub_type: 杂志文章,评审

    doi:10.1016/j.neuron.2018.03.021

    authors: Krol A,Wimmer RD,Halassa MM,Feng G

    更新日期:2018-04-18 00:00:00

  • Excitement about inhibitory presynaptic terminals.

    abstract::Based on extrapolation from excitatory synapses, it is often assumed that depletion of the releasable pool of synaptic vesicles is the main factor underlying depression at inhibitory synapses. In this issue of Neuron, using subcellular patch-clamp recording from inhibitory presynaptic terminals, Kawaguchi and Sakaba (...

    journal_title:Neuron

    pub_type: 评论,杂志文章

    doi:10.1016/j.neuron.2015.03.006

    authors: Vandael DH,Espinoza C,Jonas P

    更新日期:2015-03-18 00:00:00

  • Autophosphorylation of alphaCaMKII is required for ocular dominance plasticity.

    abstract::Experience is a powerful sculptor of developing neural connections. In the primary visual cortex (V1), cortical connections are particularly susceptible to the effects of sensory manipulation during a postnatal critical period. At the molecular level, this activity-dependent plasticity requires the transformation of s...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/s0896-6273(02)00966-2

    authors: Taha S,Hanover JL,Silva AJ,Stryker MP

    更新日期:2002-10-24 00:00:00

  • Genome-wide activity-dependent MeCP2 phosphorylation regulates nervous system development and function.

    abstract::Autism spectrum disorders such as Rett syndrome (RTT) have been hypothesized to arise from defects in experience-dependent synapse maturation. RTT is caused by mutations in MECP2, a nuclear protein that becomes phosphorylated at S421 in response to neuronal activation. We show here that disruption of MeCP2 S421 phosph...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/j.neuron.2011.08.022

    authors: Cohen S,Gabel HW,Hemberg M,Hutchinson AN,Sadacca LA,Ebert DH,Harmin DA,Greenberg RS,Verdine VK,Zhou Z,Wetsel WC,West AE,Greenberg ME

    更新日期:2011-10-06 00:00:00

  • Efficient discrimination of temporal patterns by motion-sensitive neurons in primate visual cortex.

    abstract::Although motion-sensitive neurons in macaque middle temporal (MT) area are conventionally characterized using stimuli whose velocity remains constant for 1-3 s, many ecologically relevant stimuli change on a shorter time scale (30-300 ms). We compared neuronal responses to conventional (constant-velocity) and time-var...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/s0896-6273(00)80477-8

    authors: Buracas GT,Zador AM,DeWeese MR,Albright TD

    更新日期:1998-05-01 00:00:00

  • Spaced Training Forms Complementary Long-Term Memories of Opposite Valence in Drosophila.

    abstract::Forming long-term memory (LTM) often requires repetitive experience spread over time. Studies in Drosophila suggest aversive olfactory LTM is optimal after spaced training, multiple trials of differential odor conditioning with rest intervals. Memory after spaced training is frequently compared to that after the same ...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/j.neuron.2020.03.013

    authors: Jacob PF,Waddell S

    更新日期:2020-06-17 00:00:00

  • Coupling of total hemoglobin concentration, oxygenation, and neural activity in rat somatosensory cortex.

    abstract::Recent advances in brain imaging techniques, including functional magnetic resonance imaging (fMRI), offer great promise for noninvasive mapping of brain function. However, the indirect nature of the imaging signals to the underlying neural activity limits the interpretation of the resulting maps. The present report r...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/s0896-6273(03)00403-3

    authors: Devor A,Dunn AK,Andermann ML,Ulbert I,Boas DA,Dale AM

    更新日期:2003-07-17 00:00:00

  • Visinin: a novel calcium binding protein expressed in retinal cone cells.

    abstract::Visinin is a retinal cone cell-specific protein (molecular weight 24,000, pI 5.1). To investigate its function, visinin cDNA was isolated from a chick retinal lambda gt11 cDNA library, using anti-visinin serum. The beta-galactosidase-visinin fusion protein was used for purifying epitope-selected antibody. The purified...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/0896-6273(90)90059-o

    authors: Yamagata K,Goto K,Kuo CH,Kondo H,Miki N

    更新日期:1990-03-01 00:00:00

  • Activation of light-dependent K+ channels in ciliary invertebrate photoreceptors involves cGMP but not the IP3/Ca2+ cascade.

    abstract::The activation of light-dependent K+ channels in ciliary photoreceptors from Pecten was investigated using intracellular dialysis of putative messengers and modulators. Neither elevated [Ca2+] nor BAPTA changed the membrane current in the dark or the light response. IP3 and the antagonists heparin and decavanadate wer...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/0896-6273(95)90149-3

    authors: del Pilar Gomez M,Nasi E

    更新日期:1995-09-01 00:00:00

  • Drosophila Dscam is required for divergent segregation of sister branches and suppresses ectopic bifurcation of axons.

    abstract::Axon bifurcation results in the formation of sister branches, and divergent segregation of the sister branches is essential for efficient innervation of multiple targets. From a genetic mosaic screen, we find that a lethal mutation in the Drosophila Down syndrome cell adhesion molecule (Dscam) specifically perturbs se...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/s0896-6273(02)00570-6

    authors: Wang J,Zugates CT,Liang IH,Lee CH,Lee T

    更新日期:2002-02-14 00:00:00

  • Resolving and Rescuing Developmental Miswiring in a Mouse Model of Cognitive Impairment.

    abstract::Cognitive deficits, core features of mental illness, largely result from dysfunction of prefrontal networks. This dysfunction emerges during early development, before a detectable behavioral readout, yet the cellular elements controlling the abnormal maturation are still unknown. Here, we address this open question by...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/j.neuron.2019.09.042

    authors: Chini M,Pöpplau JA,Lindemann C,Carol-Perdiguer L,Hnida M,Oberländer V,Xu X,Ahlbeck J,Bitzenhofer SH,Mulert C,Hanganu-Opatz IL

    更新日期:2020-01-08 00:00:00

  • The Nature of Shared Cortical Variability.

    abstract::Neuronal responses of sensory cortex are highly variable, and this variability is correlated across neurons. To assess how variability reflects factors shared across a neuronal population, we analyzed the activity of many simultaneously recorded neurons in visual cortex. We developed a simple model that comprises two ...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/j.neuron.2015.06.035

    authors: Lin IC,Okun M,Carandini M,Harris KD

    更新日期:2015-08-05 00:00:00

  • Coordinated Excitation and Inhibition of Prefrontal Ensembles during Awake Hippocampal Sharp-Wave Ripple Events.

    abstract::Interactions between the hippocampus and prefrontal cortex (PFC) are critical for learning and memory. Hippocampal activity during awake sharp-wave ripple (SWR) events is important for spatial learning, and hippocampal SWR activity often represents past or potential future experiences. Whether or how this reactivation...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/j.neuron.2016.02.010

    authors: Jadhav SP,Rothschild G,Roumis DK,Frank LM

    更新日期:2016-04-06 00:00:00

  • Dynamic alterations occur in the levels and composition of transcription factor AP-1 complexes after seizure.

    abstract::Seizure causes a rapid and protracted increase in transcription factor AP-1 levels in the brain. The composition of AP-1 nucleoprotein complexes changes with time after seizure as a result of the sequential appearance and disappearance of Fos and several Fos-related proteins. Although these changes occur over an 8 hr ...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/0896-6273(89)90260-2

    authors: Sonnenberg JL,Macgregor-Leon PF,Curran T,Morgan JI

    更新日期:1989-09-01 00:00:00

  • Excitation-Transcription Coupling in Parvalbumin-Positive Interneurons Employs a Novel CaM Kinase-Dependent Pathway Distinct from Excitatory Neurons.

    abstract::Properly functional CNS circuits depend on inhibitory interneurons that in turn rely upon activity-dependent gene expression for morphological development, connectivity, and excitatory-inhibitory coordination. Despite its importance, excitation-transcription coupling in inhibitory interneurons is poorly understood. We...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/j.neuron.2016.03.001

    authors: Cohen SM,Ma H,Kuchibhotla KV,Watson BO,Buzsáki G,Froemke RC,Tsien RW

    更新日期:2016-04-20 00:00:00

  • The ion channel narrow abdomen is critical for neural output of the Drosophila circadian pacemaker.

    abstract::Circadian clocks consist of transcriptional feedback loops housed in interdependent pacemaker neurons. Yet little is known about the neuronal output components essential for rhythmic behavior. Drosophila mutants of a putative ion channel, narrow abdomen (na), exhibit poor circadian rhythms and suppressed daylight acti...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/j.neuron.2005.10.030

    authors: Lear BC,Lin JM,Keath JR,McGill JJ,Raman IM,Allada R

    更新日期:2005-12-22 00:00:00

  • AMPA receptor subunits expressed by single Purkinje cells.

    abstract::Several subunits of the glutamate receptor of the AMPA subtype have been cloned recently. These subunits, named GluR1, GluR2, GluR3, and GluR4, exist as two splicing variants (flip and flop). We have determined the subset of AMPA receptor subunits expressed by single cerebellar Purkinje cells in culture. This was achi...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/0896-6273(92)90164-9

    authors: Lambolez B,Audinat E,Bochet P,Crépel F,Rossier J

    更新日期:1992-08-01 00:00:00

  • Stem cell factor functions as an outgrowth-promoting factor to enable axon exit from the midline intermediate target.

    abstract::Commissural axons are attracted to the midline intermediate target by chemoattractants, but upon crossing the midline they switch off responsiveness to attractants and switch on responsiveness to midline repellents, which expel the axons from the midline and enable them to move on. Here we show that midline exit also ...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/j.neuron.2008.01.006

    authors: Gore BB,Wong KG,Tessier-Lavigne M

    更新日期:2008-02-28 00:00:00

  • A clock shock: mouse CLOCK is not required for circadian oscillator function.

    abstract::The circadian clock mechanism in the mouse is composed of interlocking transcriptional feedback loops. Two transcription factors, CLOCK and BMAL1, are believed to be essential components of the circadian clock. We have used the Cre-LoxP system to generate whole-animal knockouts of CLOCK and evaluated the resultant cir...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/j.neuron.2006.03.041

    authors: Debruyne JP,Noton E,Lambert CM,Maywood ES,Weaver DR,Reppert SM

    更新日期:2006-05-04 00:00:00

  • Whole-Brain Profiling of Cells and Circuits in Mammals by Tissue Clearing and Light-Sheet Microscopy.

    abstract::Tissue clearing and light-sheet microscopy have a 100-year-plus history, yet these fields have been combined only recently to facilitate novel experiments and measurements in neuroscience. Since tissue-clearing methods were first combined with modernized light-sheet microscopy a decade ago, the performance of both tec...

    journal_title:Neuron

    pub_type: 杂志文章,评审

    doi:10.1016/j.neuron.2020.03.004

    authors: Ueda HR,Dodt HU,Osten P,Economo MN,Chandrashekar J,Keller PJ

    更新日期:2020-05-06 00:00:00

  • Immunological characterization of K+ channel components from the Shaker locus and differential distribution of splicing variants in Drosophila.

    abstract::Antibodies were raised to three portions of the predicted sequences of Shaker, a gene that encodes a family of K+ channel components that are produced by the alternative splicing of transcripts. On immunoblots, the protein products appear to be 65,000-85,000 daltons in size. No smaller products were detected. Immunocy...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/0896-6273(90)90448-o

    authors: Schwarz TL,Papazian DM,Carretto RC,Jan YN,Jan LY

    更新日期:1990-01-01 00:00:00

  • Purkinje Cells Directly Inhibit Granule Cells in Specialized Regions of the Cerebellar Cortex.

    abstract::Inhibition of granule cells plays a key role in gating the flow of signals into the cerebellum, and it is thought that Golgi cells are the only interneurons that inhibit granule cells. Here we show that Purkinje cells, the sole output neurons of the cerebellar cortex, also directly inhibit granule cells via their axon...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/j.neuron.2016.08.011

    authors: Guo C,Witter L,Rudolph S,Elliott HL,Ennis KA,Regehr WG

    更新日期:2016-09-21 00:00:00

  • Distinct Ca2+ sources in dendritic spines of hippocampal CA1 neurons couple to SK and Kv4 channels.

    abstract::Small conductance Ca(2+)-activated K(+) (SK) channels and voltage-gated A-type Kv4 channels shape dendritic excitatory postsynaptic potentials (EPSPs) in hippocampal CA1 pyramidal neurons. Synaptically evoked Ca(2+) influx through N-methyl-D-aspartate receptors (NMDARs) activates spine SK channels, reducing EPSPs and ...

    journal_title:Neuron

    pub_type: 杂志文章

    doi:10.1016/j.neuron.2013.11.004

    authors: Wang K,Lin MT,Adelman JP,Maylie J

    更新日期:2014-01-22 00:00:00