Abstract：
:A reporter epitope was inserted at 11 positions in a region encompassing proposed transmembrane segments S1 and S2 in the second repeat domain (D2) of the rat skeletal muscle type 1 sodium channel. All mutations produced full-length membrane-associated protein following transfection into cultured cells, although the level of expression varied with insertion position. Characterization of cognate cRNAs for each mutation in Xenopus oocytes by two-electrode voltage clamp defined a permissive region between the proposed transmembrane regions in which these large insertions did not interfere with channel function. Two of the mutations, in which the point of insertion was within the proposed S1-S2 loop, demonstrated extracellular membrane labeling when studied either by antibody binding in oocytes or by confocal analysis following transfection into primary muscle cells. Our results define the likely boundaries of an extramembrane region linking the S1 and S2 transmembrane segments in D2 and confirm the extracellular location of this S1-S2 loop predicted by current models of channel tertiary structure.
journal_name
J Neurochemjournal_title
Journal of neurochemistryauthors
Kraner SD,Filatov GN,Sun W,Bannerman P,Lindstrom J,Barchi RLdoi
10.1046/j.1471-4159.1998.70041628.xsubject
Has Abstractpub_date
1998-04-01 00:00:00pages
1628-35issue
4eissn
0022-3042issn
1471-4159journal_volume
70pub_type
杂志文章abstract：:The serotonin 5-HT3 receptor, a ligand-gated ion channel, has previously been shown to be present on a subpopulation of brain nerve terminals, where, on activation, the 5-HT3 receptors induce Ca2+ influx. Whereas postsynaptic 5-HT3 receptors induce depolarization, being permeant to Na+ and K+, the basis of presynaptic...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1998.70031094.x
更新日期：1998-03-01 00:00:00
abstract：:Two monoclonal antibodies that recognize Alzheimer's neurofibrillary tangles (ANTs), AD10 and AB18, have been characterized by immunoblotting against human and calf spinal cord neurofilament (NF) and calf brain microtubule preparations. Both antibodies bind to the 200-kilodalton (kd) (NF-H) and 160-kd (NF-M) but not t...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1987.tb04114.x
更新日期：1987-02-01 00:00:00
abstract：:The activity-dependent fusion, retrieval and recycling of synaptic vesicles is essential for the maintenance of neurotransmission. Until relatively recently it was believed that most mutations in genes that were essential for this process would be incompatible with life, because of this fundamental role. However, an e...
journal_title：Journal of neurochemistry
pub_type： 杂志文章,评审
doi：10.1111/jnc.15035
更新日期：2020-05-07 00:00:00
abstract：:Arg0-Met5-enkephalin (Arg0-MEK) was isolated from bovine striatum and purified to homogeneity. The peptide was extracted with trichloroacetic acid, followed by column chromatography successively on Bio-Sil C8, semipreparative HPLC Radial-Pak C18, fast protein liquid chromatography (FPLC) Mono S, HPLC Ultrasphere-ODS, ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1994.63051748.x
更新日期：1994-11-01 00:00:00
abstract：:The neurotoxin 1-methyl-4-phenylpyridinium ion (MPP+) in the brain striatum has recently been shown to bind at a putatively vesicular site labeled by [3H]tyramine ([3H]TY). Whereas in the rat and mouse striatum MPP+ antagonized TY binding competitively, in the cerebellum there was a mixed-type antagonism, which sugges...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1993.tb03212.x
更新日期：1993-02-01 00:00:00
abstract：:In cerebellum, 75% of all GABAA receptors contain alpha1 subunits. Here, we investigated compensatory changes in GABAA receptor subunit expression and composition in alpha1 subunit-knockout mice. In these mice the total number of cerebellar GABAA receptors was reduced by 46%. Whereas the number of receptors containing...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2005.03509.x
更新日期：2006-01-01 00:00:00
abstract：:The circadian rhythm of methionine S-adenosyltransferase, which catalyzes the formation of S-adenosylmethionine, a cosubstrate for melatonin in the pineal gland, follows the pattern of hydroxyindole-O-methyltransferase. Around the middle of the dark period, methionine S-adenosyltransferase and hydroxyindole-O-methyltr...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1981.tb10840.x
更新日期：1981-06-01 00:00:00
abstract：:The dopamine transporter is a plasma membrane protein that controls extracellular concentrations of the neurotransmitter dopamine. The physiological importance of the DAT provides the impetus for studies aimed at understanding the molecular mechanisms underlying regulation of the DAT gene. In this study, we identified...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2005.03051.x
更新日期：2005-04-01 00:00:00
abstract：:In spite of biochemical and autoradiographic evidence for glucocorticoid binding sites in the spinal cord (SC), events occurring after the preliminary step of hormone binding were not studied. In this investigation, we have examined the transformation (activation) of the cytosolic receptor coupled to [3H]dexamethasone...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1985.tb10525.x
更新日期：1985-12-01 00:00:00
abstract：:Rat brain succinyl-CoA:3-oxo-acid CoA-transferase (3-oxo-acid CoA-transferase, EC 2.8.3.5), the first committed enzyme in the oxidation of ketone bodies in mitochondria, was purified to apparent homogeneity as judged by polyacrylamide gel electrophoresis. The enzyme has an apparent molecular weight of 90,000 as determ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1982.tb07924.x
更新日期：1982-05-01 00:00:00
abstract：:Leucine and beta-(+/-)-2-aminobicyclo[2.2.1]heptane-2-carboxylic acid (BCH) stimulated, in a dose-dependent manner, reductive amination of 2-oxoglutarate in rat brain synaptosomes treated with Triton X-100. The concentration dependence curves were sigmoid, with 10-15-fold stimulations at 15 mM leucine (or BCH); oxidat...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1990.tb01967.x
更新日期：1990-04-01 00:00:00
abstract：:The function of membrane phospholipids (PL) in the regulation of gamma-aminobutyric acid (GABA) transport and GABA carrier binding has been investigated in organized cultures of rat cerebral cortex. The cellular lipid composition has been changed by growing the cells in a delipidated nutrient solution or by short-term...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1985.tb12877.x
更新日期：1985-03-01 00:00:00
abstract：:A central role of iron in the pathogenesis of Parkinson's disease (PD), due to its increase in substantia nigra pars compacta dopaminergic neurons and reactive microglia and its capacity to enhance production of toxic reactive oxygen radicals, has been discussed for many years. Recent transcranial ultrasound findings ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章,评审
doi：10.1046/j.1471-4159.2001.00608.x
更新日期：2001-10-01 00:00:00
abstract：:The presence of gamma-hydroxybutyric acid (GHB) in synaptosome-enriched fractions of rat brain was ascertained using a GLC technique. The stability of GHB in synaptosomes was evaluated by addition of various gamma-aminobutyric acid (GABA) transaminase (GABA-T) inhibitors, GHB, or ethosuximide to the homogenizing mediu...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1987.tb13147.x
更新日期：1987-01-01 00:00:00
abstract：:Fascin-1 is a putative bundling factor of actin filaments in the filopodia of neuronal growth cones. Here, we examined the structure of the actin bundle formed by human fascin-1 (actin/fascin bundle), and its mode of interaction with myosin in vitro. The distance between cross-linked filaments in the actin/bundle was ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.2003.02058.x
更新日期：2003-11-01 00:00:00
abstract：:The effects of a novel nonpeptide NK1 tachykinin receptor antagonist, SR 140333, on the functional consequences of NK1 receptor activation in a human astrocytoma cell line, U373MG, were investigated. Radioligand binding conducted with 125I-Bolton-Hunter substance P revealed a competitive inhibition by SR 140333 and it...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1994.62041399.x
更新日期：1994-04-01 00:00:00
abstract：:We examined the effects of chronic systemic administration of the mitochondrial toxin 3-nitropropionic acid (3-NP) in doses ranging from 12 to 16 mg/kg/day for 30 days on striatal cytoarchitecture in rats. Administration of 3-NP at a dose of 16 mg/kg/day resulted in large lesions with a central necrotic core that was ...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.1994.63051772.x
更新日期：1994-11-01 00:00:00
abstract：:ε4 allele of ApoE is the strongest genetic risk factor for late onset Alzheimer's disease (AD). Supplementation of ApoE proteins or mimetics has been pursued for drug developments against AD. A very low-density lipoprotein (HDL) mimetic peptide 4F was shown to alleviate AD-related deficits in APP transgenic mice, and ...
journal_title：Journal of neurochemistry
pub_type： 评论,社论
doi：10.1111/jnc.14595
更新日期：2018-12-01 00:00:00
abstract：:Exposure of neurones in culture to excitotoxic levels of glutamate results in an initial transient spike in [Ca2+]i followed by a delayed, irreversible [Ca2+]i rise governed by rapid kinetics, with Ca2+ originating from the extracellular medium. The molecular mechanism responsible for the secondary Ca2+ rise is unknow...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2004.02732.x
更新日期：2004-10-01 00:00:00
abstract：:Perineuronal nets (PNNs) are presumed to limit plasticity in adult animals. Ischaemic stroke results in the massive breakdown of PNNs resulting in rejuvenating states of neuronal plasticity, but the mechanisms of this phenomenon are largely unknown. As hyaluronic acid (HA) is the structural backbone of PNNs, we hypoth...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/jnc.15279
更新日期：2020-12-20 00:00:00
abstract：:Neural stem cells (NSCs) are self-renewing multipotent cells that undergo symmetric and asymmetric cell division during development of the nervous system. The behavior of NSCs is tightly regulated by intrinsic processes such as transcriptional and post-transcriptional control, as well as the stem cell niche factors th...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2011.07227.x
更新日期：2011-05-01 00:00:00
abstract：:Before this study, the human norepinephrine transporter (hNET) was the only member of the biogenic amine neurotransmitter transporter family that had not been demonstrated to be a functional homo-oligomer. Here, using two forms of the transporter, I155C and hNET-myc, with distinct antigenicity and inhibitor sensitivit...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.2003.01793.x
更新日期：2003-06-01 00:00:00
abstract：:Prothymosin alpha (ProTα), a nuclear protein devoid of signal sequence, has been shown to possess a number of cellular functions including cell survival. Most recently, we demonstrated that ProTα is localized in the nuclei of neurons, while it is found in both nuclei and cytoplasm in the astrocytes and microglia of ad...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2012.07897.x
更新日期：2012-10-01 00:00:00
abstract：:Bone fracture at the acute stage of stroke exacerbates stroke injury by increasing neuroinflammation. We hypothesize that activation of α-7 nicotinic acetylcholine receptor (α-7 nAchR) attenuates neuroinflammation and oxidative stress, and reduces brain injury in mice with bone fracture and stroke. Permanent middle ce...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/jnc.12817
更新日期：2014-11-01 00:00:00
abstract：:Glial cells secrete proinflammatory mediators in the brain in response to exogenous stimuli such as infection and injury. Previously, we documented that systemic maternal lipopolysaccharide (LPS)-exposure at embryonic gestation day 18 causes oligodendrocyte (OL)-injury/hypomyelination in the developing brain which can...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2007.05199.x
更新日期：2008-05-01 00:00:00
abstract：:Saturable and specific binding sites for 5-[3H]hydroxytryptamine (5-HT, serotonin) characterized by a KD of 3.5-4.5 nM were detected in the chick embryo brain and were shown to develop linearly as a function of age, weight, and protein content. Saturation and displacement studies using unlabeled 5-HT as the displacing...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1985.tb05447.x
更新日期：1985-02-01 00:00:00
abstract：:We have previously shown that prolonged exposure to neurotrophins induces oxidative neuronal death. In the present study, we further examined the cascades involved in neurotrophin-4/5 (NT-4/5)-induced neuronal death. Exposure of mature cortical cultures for 48 h to NT-4/5 induced neuronal death through TrkB activation...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1046/j.1471-4159.2003.02187.x
更新日期：2004-02-01 00:00:00
abstract：:Equilibrium binding of [3H]dihydromorphine was assayed in brain regions of young and aged male F344 rats. Young rats had significantly higher receptor densities than old rats in the frontal poles, anterior cortex, and striatum. In the frontal poles, the decline in receptor concentration with age was accompanied by a s...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.1981.tb01659.x
更新日期：1981-02-01 00:00:00
abstract：:Spinocerebellar ataxia type 3 (SCA3) is one of at least nine inherited neurodegenerative diseases caused by an expansion of a polyglutamine tract within corresponding disease-specific proteins. In case of SCA3, mutation of Ataxin-3 results in aggregation of misfolded protein, formation of intranuclear as well as cytos...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/jnc.12684
更新日期：2014-06-01 00:00:00
abstract：:Transamination of the branched-chain amino acids produces glutamate and branched-chain alpha-ketoacids. The reaction is catalyzed by branched-chain aminotransferase (BCAT), of which there are cytosolic and mitochondrial isoforms (BCATc and BCATm). BCATc accounts for 70% of brain BCAT activity, and contributes at least...
journal_title：Journal of neurochemistry
pub_type： 杂志文章
doi：10.1111/j.1471-4159.2006.04332.x
更新日期：2007-03-01 00:00:00
