Abstract:
:The fragile X syndrome, one of the most common forms of inherited mental retardation, is caused by an expansion of a polymorphic CGG repeat upstream the coding region of the FMR1 gene. These expansions are associated with hypermethylation of the FMR1 gene, which results in the absence of the gene product, the FMR1 protein (FMRP). The physiological function of FMRP remains to be determined. We studied the ultrastructural localization of FMRP at the electron microscopical level using the immunogold technique. FMRP is associated with ribosomes attached to the endoplasmic reticulum and with ribosomes free in the cytoplasm. In addition, FMRP is found in the nucleus where the protein is associated with the granular component of the nucleolus. The cellular function of FMRP is hypothesized in relation to its subcellular distribution.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Willemsen R,Bontekoe C,Tamanini F,Galjaard H,Hoogeveen A,Oostra Bdoi
10.1006/bbrc.1996.1126subject
Has Abstractpub_date
1996-08-05 00:00:00pages
27-33issue
1eissn
0006-291Xissn
1090-2104pii
S0006-291X(96)91126-2journal_volume
225pub_type
杂志文章abstract::Down syndrome (DS, Trisomy 21) is the most common genetic cause of delayed fetal brain development and postnatal intellectual disability. Although delayed fetal brain development might be involved in intellectual disability, no evidence of an association between these abnormal phenotypes has been shown. To identify mo...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2020.12.026
更新日期:2021-01-08 00:00:00
abstract::Reversible protein tyrosine phosphorylation is an essential signal transduction mechanism that regulates cell growth, differentiation, mobility, metabolism, and survival. Two genes coding for protein tyrosine phophatases, designed EhPTPA and EhPTPB, were cloned from Entamoeba histolytica. EhPTPA and EhPTPB proteins sh...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2006.02.055
更新日期:2006-04-21 00:00:00
abstract::Studies were made on the mechanism of the effect of parathyroid hormone (PTH) on the activity of (Ca2++Mg2+)-ATPase, a membrane bound Ca2+-extrusion pump enzyme from the basolateral membranes (BLM) of canine kidney (Km for free Ca2+ = 1.3 X 10(-7) M, Vmax = 200 nmol Pi/mg/min). At 1 X 10(-7) M free Ca2+, both PTH (10(...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(88)90515-3
更新日期:1988-01-15 00:00:00
abstract::To determine whether the cytokine interleukin (IL)-6 induces heat shock protein (HSP) 72 gene expression in skeletal muscle, 18 healthy, young men had either a high dose of IL-6 (HiIL-6; n=6), low dose IL-6 (LoIL-6; n=6), or saline (CON; n=6) infused into one femoral artery for 3h. Muscle biopsies were obtained from t...
journal_title:Biochemical and biophysical research communications
pub_type: 临床试验,杂志文章
doi:10.1016/s0006-291x(02)02079-x
更新日期:2002-09-06 00:00:00
abstract::The transcription of human nm23 genes (nm23-H1, nm23-H2) is involved in suppression of tumor metastasis or tumor progression. Therefore the characterization of transcriptional regulatory mechanisms for both nm23 genes is very important. In this study we have isolated and analyzed the 5'-flanking region of the human nm...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1995.2550
更新日期:1995-10-24 00:00:00
abstract::We have previously demonstrated that homeodomain proteins, MEIS1 and PBXs, transactivate the PF4 gene through the novel regulatory element termed TME. This study focuses on Pbx regulating protein 1 (PREP1), a MEIS1 homolog protein, for its transcriptional activity in the PF4 promoter. PREP1 binds to the TME in HEL cel...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(03)00718-6
更新日期:2003-05-23 00:00:00
abstract::ZinT (B1973), previously known as YodA, was originally characterised as a cadmium-induced periplasmic protein under the regulation of Fur and SoxS. Here we describe a decrease in zinT transcript in response to elevated copper concentrations and the zinc and copper dependent phenotype of a DeltazinT strain. Cadmium sen...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2007.09.094
更新日期:2007-12-07 00:00:00
abstract::Of two major isoforms of angiotensin II receptors, AT1 and AT2, biological roles of AT2 remain unclear. Using vascular smooth muscle cells, we investigated the regulation of expression of AT2 by growth factors in comparison with that of AT1. The cultured rat aorta smooth muscle cells had detectable AT2 binding sites, ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1993.1844
更新日期:1993-07-15 00:00:00
abstract::Dynamic properties of spin-labelled heterosaccharides in the Fc-region of murine monoclonal antihapten immunoglobulin G were studied in model immune complexes (IC) as a function of the IC size. Model IC dimers, trimers and oligomers were formed using bivalent photoaffinity antigens. The ESR spectrum exhibits two compo...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(86)91201-5
更新日期:1986-05-29 00:00:00
abstract::Pancreatectomy (Px) is known to cause islet hypertrophy and is a putative method to mimic hyperglycemia representing type II diabetes mellitus. Therefore, finding new genes related to pancreatectomy will help to understand the molecular mechanism of hypertrophy and hyperglycemia, and may provide new diagnostic markers...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(02)02741-9
更新日期:2002-12-20 00:00:00
abstract::Receptor activator of nuclear factor (NF)-κB ligand (RANKL)-activated signaling is essential for osteoclast differentiation, activation, and survival. Salicortin is a phenolic glycoside that has been isolated from many plants such as Populus and Salix species, and has been shown to have anti-amnesic and anti-adipogeni...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2015.12.115
更新日期:2016-01-29 00:00:00
abstract::Voltage-gated potassium (K+) channel sub-family B member 1 (KCNB1, Kv2.1) is known to undergo oxidation-induced oligomerization during aging but whether this process affects brain's physiology was not known. Here, we used 10, 16 and 22 month-old transgenic mice overexpressing a KCNB1 variant that does not oligomerize ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2019.03.130
更新日期:2019-05-14 00:00:00
abstract::Adipocyte hypertrophy and hyperplasia have been shown to be associated with shorter telomere length, which may reflect aging, altered cell proliferation and adipose tissue (AT) dysfunction. In individuals with obesity, differences in fat distribution and AT cellular composition may contribute to obesity related metabo...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2014.12.122
更新日期:2015-02-13 00:00:00
abstract::It has been shown that anti-cancer drug induces secretion of serotonin (5-HT) from small intestine which activates serotonin type 3 (5-HT(3)) receptor to cause nausea and vomiting. In general, antagonist for 5-HT(3) receptor is used as anti-emetics during chemotherapy. However, we found that anti-cancer drug irinoteca...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2011.10.084
更新日期:2011-11-18 00:00:00
abstract::Infection and/or drug-mediated acute liver injury, the leading cause of lethal liver failure, is a critical health problem worldwide and lacks effective treatment. Here, we used Lipopolysaccharides (LPS)/D-galactosamine (D-gal)-treated primary hepatocytes to screen a natural library that contains 1130 chemicals. Baica...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2020.11.109
更新日期:2021-01-01 00:00:00
abstract::Proteolipid protein, the major protein component of central nervous system (CNS) myelin, is known to contain approximately 2% by weight of covalently bound fatty acids. Recently, this protein was also found, though at a lower concentration, in the peripheral nervous system (PNS). The present study was undertaken to de...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1993.1767
更新日期:1993-06-30 00:00:00
abstract::Prion diseases are characterized by the accumulation of a pathological form of prion protein (PrP(Sc)), which behaves as an infectious agent. Here we developed an in vitro co-culture system to analyze the PrP(Sc) transmission from ScN2a cell, which persistently retains PrP(Sc), to naïve N2a cell. In this cell-to-cell ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2010.05.143
更新日期:2010-07-02 00:00:00
abstract::Fluid flowing through the bone porosity might be a primary stimulus for functional adaptation of bone. Osteoblasts, and osteocytes in particular, respond to fluid flow in vitro with enhanced nitric oxide (NO) and prostaglandin E(2) (PGE(2)) release; both of these signaling molecules mediate mechanically-induced bone f...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.02.175
更新日期:2005-04-29 00:00:00
abstract::High blood glucose levels of KK-A(y) mice with type 2 diabetes mellitus were normalized by daily intraperitoneal (ip) administration of a zinc(II) complex, bis(maltolato)zinc(II) (Zn(Mal)(2)) with a Zn(O(4)) coordination mode, following the finding of strong in vitro insulinomimetic activity in isolated rat adipocytes...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2001.4456
更新日期:2001-03-01 00:00:00
abstract::Two Chinese hamster ovary cell clones resistant to okadaic acid (OA) were isolated. The OA-resistance was associated with resistance to colchicine, Vinca alkaloids and inhibitors of DNA topoisomerase (topo) II. Drug accumulation assays showed that the intracellular levels of OA, vinblastine and vincristine, but not th...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1994.2311
更新日期:1994-09-15 00:00:00
abstract::To date, tick-borne flaviviruses responsible for hemorrhagic fever in humans have been isolated in Siberia (Omsk hemorrhagic fever virus), India (Kyasanur Forest disease virus, KFDV), and in Saudi Arabia (Alkhurma virus, ALKV). Prior to this study, only partial coding sequences of these severe pathogens had been deter...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2001.5610
更新日期:2001-09-21 00:00:00
abstract::Soluble guanylyl cyclase (sGC) is activated by nitric oxide (NO) and generates the second messenger cyclic GMP (cGMP). Recently, purified sGC α1β1 has been shown to additionally generate the cyclic pyrimidine nucleotides cCMP and cUMP. However, since cyclic pyrimidine nucleotide formation occurred only the presence of...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2013.12.108
更新日期:2014-01-24 00:00:00
abstract::The aim of this study was to determine age-related degradation of gammaD-crystallin and the cleavage sites in the connecting peptide regions of the two domains of gammaD- and gammas-crystallins. The water-soluble (WS) proteins from lenses of donors of different ages and a purified gamma-crystallin fraction were analyz...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1998.9728
更新日期:1998-12-18 00:00:00
abstract::Chlamydia trachomatis (C. trachomatis) is an obligate intracellular organism that depends on nutrients from the host cell for their replication and proliferation. Therefore, the interaction between this pathogen and host induces sustained endoplasmic reticulum (ER) stress in the infected cells. Unfolded protein respon...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2020.04.117
更新日期:2020-06-30 00:00:00
abstract::MicroRNAs are aberrantly expressed in a wide variety of human cancers. The present study aims to elucidate the effects and molecular mechanisms of miR-144-3p that underlie gastric cancer (GC) development. It was observed that miR-144-3p expression was significantly decreased in GC tissues compared to that in paired no...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2017.01.084
更新日期:2017-03-04 00:00:00
abstract::The effects of different periods of incubation (8 min vs 20 min) on insulin binding kinetics were examined in a H35 hepatoma cell line. Scatchard plots from cells incubated for 8 min were linear (r = 0.987 +/- 0.006), in contrast to curvilinear Scatchard plots from cells incubated for 20 min. Hill plots showed a slope...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(88)81029-5
更新日期:1988-12-30 00:00:00
abstract::Small-molecule inhibitors of tau fibrillization are under investigation as tools for interrogating the tau aggregation pathway and as potential therapeutic agents for Alzheimer's disease. Established inhibitors include thiacarbocyanine dyes, which can inhibit recombinant tau fibrillization in the presence of anionic s...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2007.08.166
更新日期:2007-11-09 00:00:00
abstract::Ligand engagement by integrins induces receptor clustering and formation of complexes at the integrin cytoplasmic face that controls cell signaling and cytoskeletal dynamics critical for adhesion-dependent processes. This study searches for a subset of integrin effectors that coordinates both tumor cell invasion and r...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2011.01.109
更新日期:2011-03-11 00:00:00
abstract::Stimulation of lipid peroxidation by incubating isolated rat hepatocytes with ADP/FeCl3 caused a time dependent increase in cytosolic free Ca2+ levels, without influencing cellular Na+ content. Omission of Na+ from the incubation medium greatly increased the accumulation of Ca2+, which was partially reverted upon tran...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1995.1409
更新日期:1995-03-17 00:00:00
abstract::The specificity of alpha, beta-methylene-ATP for P2X receptor binding sites in the CNS has been examined by testing the effects of several ATP analogues and other ATP-related substances on the binding of 10 nM [3H]alpha,beta-methylene-ATP to 20 microns thick sections of fresh-frozen rat brain. The labelling of the put...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1998.8968
更新日期:1998-08-10 00:00:00