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Fruit Fly (Drosophila melanogaster) Monoclonal FMR1 Primary Antibody pour ICC, IF - ABIN108598
Wan, Dockendorff, Jongens, Dreyfuss: Characterization of dFMR1, a Drosophila melanogaster homolog of the fragile X mental retardation protein. dans Molecular and cellular biology 2000
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Fruit Fly (Drosophila melanogaster) Monoclonal FMR1 Primary Antibody pour ICC, IF - ABIN108599
Callan, Clements, Ahrendt, Zarnescu: Fragile X Protein is required for inhibition of insulin signaling and regulates glial-dependent neuroblast reactivation in the developing brain. dans Brain research 2012
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Bat Polyclonal FMR1 Primary Antibody pour WB - ABIN610747
Anderson, Teutsch, Dong, Wortis: An essential role for Bruton's [corrected] tyrosine kinase in the regulation of B-cell apoptosis. dans Proceedings of the National Academy of Sciences of the United States of America 1996
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Human Polyclonal FMR1 Primary Antibody pour FACS, IHC (p) - ABIN390866
Yuhas, Walichiewicz, Pan, Zhang, Casillas, Hagerman, Tassone: High-risk fragile x screening in Guatemala: use of a new blood spot polymerase chain reaction technique. dans Genetic testing and molecular biomarkers 2009
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Human Monoclonal FMR1 Primary Antibody pour IF, IHC - ABIN966157
Dobson, Kube, Timmerman, Krushel: Identifying intrinsic and extrinsic determinants that regulate internal initiation of translation mediated by the FMR1 5' leader. dans BMC molecular biology 2008
Chlamydomonas reinhardtii (C. reinhardtii) Polyclonal FMR1 Primary Antibody pour WB - ABIN1720852
Subramanian, Dubini, Astling, Laurens, Old, Grossman, Posewitz, Seibert: Profiling Chlamydomonas metabolism under dark, anoxic H2-producing conditions using a combined proteomic, transcriptomic, and metabolomic approach. dans Journal of proteome research 2014
Human Polyclonal FMR1 Primary Antibody pour ELISA, WB - ABIN4312232
Dölen, Osterweil, Rao, Smith, Auerbach, Chattarji, Bear: Correction of fragile X syndrome in mice. dans Neuron 2007
Polyclonal FMR1 Primary Antibody pour ELISA, WB - ABIN539767
Sittler, Devys, Weber, Mandel: Alternative splicing of exon 14 determines nuclear or cytoplasmic localisation of fmr1 protein isoforms. dans Human molecular genetics 1996
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Human Polyclonal FMR1 Primary Antibody pour ELISA, IHC (p) - ABIN451678
Hanson, Blank, Valenzuela, Garner, Madison: The functional nature of synaptic circuitry is altered in area CA3 of the hippocampus in a mouse model of Down's syndrome. dans The Journal of physiology 2007
Stored oocytes lacking FMR1 usually generate embryos with severe neural defects, unlike stored wild-type oocytes, which suggests that translation of multiple large proteins by stored mRNAs is defective in fragile X syndrome and possibly other autism spectrum disorders.
This FMRP activity is mediated solely via a second conserved RNA-binding protein, LIN-28, known to boost insulin signaling in stem cells. Via LIN-28, FMRP controls progenitor cell behavior by post-transcriptionally repressing the level of insulin receptor (InR).
DTor and DFMRP immunoreactivities were partially colocalized in several cellular organelles in larval muscles
Synaptic release of neuropeptides and neurotrophins depends on presynaptic accumulation of dense-core vesicles (DCVs). At rest, DCVs are captured bidirectionally as they circulate through Drosophila motoneuron terminals by anterograde and retrograde transport. Here we show that activity stimulates further synaptic capture that is distinguished from basal capture by its selectivity for anterograde DCVs and its inhibition b
Fmr1 protein associates with ninaE mRNA and represses its translation.
Our data strongly support a gain-of-function pathogenic mechanism of PQBP1 c.459_462delAGAG and c.463_464dupAG mutations, and suggest that therapeutic strategies to restore FMRP function may be beneficial for those patients
dFMRP cooperates with Piwi in maintaining genome integrity by silencing heterochromatic genes and suppressing transposon expression.
results show Fragile X Mental Retardation Protein (FMRP) shapes neuron class-specific calcium signaling in excitatory vs. inhibitory neurons in developing learning/memory circuitry, and that FMRP mediates activity-dependent regulation of calcium signaling specifically during the early-use critical period.
results support a model whereby dFMRP can modulate the neurotoxicity caused by TDP-43 overexpression
demonstrate that Zfrp8 genetically interacts with Fmr1 and tral in an antagonistic manner. Zfrp8 and FMRP both control heterochromatin packaging, also in opposite ways
dFmr1 protein is essential for proper cardiac function and establish the fly as a new model for studying the role(s) of FraX proteins in the heart.
Driving expression of FMRpolyG enhanced induction of UPS impairment in cell models, while prevention of RAN translation attenuated UPS impairment in cells and suppressed the genetic interaction with UPS manipulation in Drosophila
These results show that dfmr1 acts in a neuron type-specific activity-dependent manner for sculpting dendritic arbors during early-use, critical period development of learning and memory circuitry in the Drosophila brain.
upon the stimulation of replication stress, dFMR1 is associated with chromatin in a domain-specific manner, which is essential for its ability to induce the phosphorylation of H2Av.
The results of this study show that GABAergic circuit structure and function are impaired in the FXS disease state
FMRP inhibits translation by binding directly to the L5 protein on the 80S ribosome.
FMRP negatively regulates HSPG co-receptors controlling trans-synaptic signaling during synaptogenesis
FMRP and Ataxin-2 have roles in long-term olfactory habituation and neuronal translational control
Dfmr1 mutants are less active than wild-type flies and interact with each other less often. Results raise the possibility of defective social expression with preserved receptive abilities.
Lig regulates cell proliferation during development in concert with Rin, Capr and FMR1.
CGG repeat length and FMR1 mRNA levels were not associated with performance on any gait domain in Fragile X-associated tremor ataxia syndrome (FXTAS).
The knockdown of FMRP induced miR-181a expression and contributed to endothelial cell proliferation and angiogenesis. Authors identified CaM as a downstream target of miR-181a in endothelial cells.
Study found no significant relationship between the longitudinal changes of the CGG repeat in the FMR1 promoter region and premature ovarian failure etiology which can be attributed to the genetic heterogeneity nature of the disease, the possible involvement of the other genomic variations with the ovarian function and the reproductive health.
Agenet domain of FMRP binds FUS.
Our male patient had a pattern of the FMR1 size mosaic with both premutation (129 CGG) and full mutation (over 200) fragments
AKT inhibition led to decreased FMRP levels, as expected due to the known FMR1/FMRP negative feedback loop. But rFSH and the mTOR inhibition increased them, indicating a decoupling of this FMR1/FMRP negative feedback loop in our model system
The CGG expanded allele of the FMR1 gene might be associated with unexplained multiple miscarriages.
Fragile X-associated disorders encompass several conditions, which are caused by expansion mutations in the fragile X mental retardation 1 (FMR1) gene.
We demonstrate that romidepsin, an inhibitor of class I histone deacetylases, does not activate FMR1 expression in patient cell cultures, whereas vorinostat, an inhibitor of classes I and II histone deacetylases, activates a low level of FMR1 expression in some patient cell lines
the current study shows lower rates of blastocyst development per metaphase II oocyte and 2PN embryos in FMR1 pre-mutation carriers compared to age-matched controls.
Next-generation sequencing in human melanoma cells revealed that FMRP regulates a large number of mRNAs involved in relevant processes of melanoma progression
The naturally occurring Fragile XFMR1 5' region undergoes inactivation post implantation in a Dicer/Ago-dependent targeted process which involves local SUV39H-mediated tri-methylation of histone H3K9. Fragile X syndrome may come about through inadvertent siRNA-mediated heterochromatinization.
The learning disability fragile X syndrome results from the presence of >200 CGG/CCG repeats in exon 1 of the X-linked gene FMR1. Such alleles arise by expansion from maternally transmitted FMR1 premutation alleles, alleles having 55 to 200 repeats. Expansion risk is directly related to maternal repeat number. However, AGG interruptions to the repeat tract are important modifiers of expansion risk.
Women who carry a fragile X premutation, defined as having 55-200 unmethylated CGG repeats in the 5' UTR of the X-linked FMR1 gene, have a 20-fold increased risk for primary ovarian insufficiency .This study supports the idea of a relationship between a fragile X premutation and accelerated biological aging and could be the basis of future studies aimed to better understand the role of this mutation on cellular senescence
Studies indicate the relationship between Fragile X mental retardation 1 (Fmr1) and non-coding RNA pathways, suggesting molecular pathogenesis of Fragile X syndrome, and potential translational applications in clinical management of the disease [Review].
In women with the FMR1 premutation, elevated optimism may reduce the occurrence or severity of MDD and anxiety disorders.
Eight of the 14 fetuses that inherited the maternal mutant allele were verified to have a full mutation, with the smallest maternal pre-mutation allele of the FMR1 gene carrying 56 CGG repeats. The overall findings confirmed that the carrier prevalence among low-risk women in Taiwan is significantly lower than that reported in western countries
The results show that SMNDC1 mRNA 5'-UTR forms an intramolecular, parallel G quadruplex structure comprised of three G quartet planes, which is bound specifically by FMRP both in vitro and in mouse brain lysates.
The results of this study findings reveal domain-specific functions of FMRP in the regulation of axonal complexity that may be controlled by differential expression of FMRP splice forms.
contextualize 3 years of FXS model research
We identified thousands of clustered RNA editing sites in the zebrafish transcriptome and showed that Fmrp biochemically interacts with the Adar2a protein. The expression levels of the adar genes and Adar2 protein increased in fmr1-/- zebrafish
Loss-of-function fmr1 mutants carrying an anti-fmr1 miRNA transgene show abnormal neuronal morphology and connectivity similar to that seen in human fragile X syndrome.
Study found delays in auditory brainstem nucleus development and imbalances in synaptic input, which potentially contribute to the hyperacusis found in adult Fmr1 KO mice. Findings show developmental effects at very young ages, implying that early developmental events initiate some of the auditory phenotypes in fragile X syndrome.
Data show in fragile X mental retardation syndrome 1 protein (Fmr1) knockout neurons, type 1 adenylyl cyclase (Adcy1) mRNA translation is enhanced, leading to excessive production of ADCY1 protein and insensitivity to neuronal stimulation.
Findings provide evidence that the complete loss of functional FMR1 protein and change in mTOR signaling, results in the premature recruitment and depletion of the primordial follicle pool in a novel Fmr1 KO mouse model.
FMRP inhibits ADAR2 activity, absence of FMRP results in defects of RNA editing of neuronal mRNAs in the mouse model of Fragile X Syndrome.
this study establishes that reducing STEP activity with TC-2153 in Fmr1 KO mice reduces AGS susceptibility, improves electrophysiologic and synaptic deficits, and normalizes select social and nonsocial anxiety-related behaviors.
Results indicate several sex-specific changes in Fmr1 knockout mice, including male-specific increases in activity levels, and female-specific increases in repetitive behaviors on both the nose-poke assay and motor coordination on the accelerating rotarod task.
Fmr1 regulates stability of Myf5 mRNA and skeletal muscle cell renewal.
The results of this study found decreases in either glycinergic or GABAergic inhibition to the medial nucleus of the trapezoid body (MNTB) specific to the tonotopic location within the nucleus in Fmr1 knockout mice.
mGluR5 was significantly more mobile at synapses in hippocampal Fmr1 KO neurons, causing an increased synaptic surface co-clustering of mGluR5 and NMDAR.
Using the Fmr1 null mouse model of fragile X syndrome, brain regions, gene networks, and molecular pathways responsive to a social stimulus have been identified.
This study demonstrated that In vivo recordings from barrel cortex revealed that Fmr1 KO mice show an enlargement in the cortical area activated by whisker deflections.
The data of this study suggested that NMDAR hypofunction in the DG may partly contribute to learning and memory impairment in female Fmr1(+/-) mice
This study shown a clear reduction in the frequency and duration of calls for FMR1 KOs compared with WT across all days and also a significant difference in vocalizations between male and female mice.
APP levels then decrease progressively as a function of age in close relationship with the gradual normalization of FMRP and hnRNP C levels.
Overexpression of Dgkkappa in neurons is able to rescue the dendritic spine defects of the Fragile X Mental Retardation 1 gene KO neurons.
Results indicate that direct inhibition of acetylcholinesterase activity and up-regulation of m1 muscarinic acetylcholine receptor expression in the striatum might contribute to the beneficial effects of alpha-asarone on locomotor hyperactivity in Fmr1 knock out mice.
neurogenesis is also accelerated in the embryonic brain of Fmr1-knockout mice, indicating that cellular model recapitulates the molecular alterations present in vivo.
Casein kinase II (CK2) phosphorylates murine FMRP S499. Phosphorylation of FMRP S499 permits phosphorylation of additional, nearby residues. Evidence suggests that these nearby residues are modulated by mGluR-I and PP2A pathways; that FMRP is peritranslationally phosphorylated by CK2, which allows for secondary phosphorylation of secondary residues in an activity-dependent manner.
The protein encoded by this gene binds RNA and is associated with polysomes. The encoded protein may be involved in mRNA trafficking from the nucleus to the cytoplasm. A trinucleotide repeat (CGG) in the 5' UTR is normally found at 6-53 copies, but an expansion to 55-230 repeats is the cause of fragile X syndrome. Expansion of the trinucleotide repeat may also cause one form of premature ovarian failure (POF1). Multiple alternatively spliced transcript variants that encode different protein isoforms and which are located in different cellular locations have been described for this gene.
, Fragile-X mental retardation protein
, drosophila fragile X mental retardation protein
, fragile X
, fragile X mental retardation
, fragile X mental retardation 1
, fragile X mental retardation gene
, fragile X mental retardation protein
, fragile X protein
, fragile X related protein
, fragile X-related
, fragile x related
, fragile X mental retardation protein 1
, fragile X mental retardation protein 1 homolog
, fragile X mental retardation syndrome 1 homolog
, fragile X mental retardation-1 protein
, protein FMR-1
, ragile X mental retardation protein
, fragile X mental retardation 1 protein