Abstract:
:Previous research showed that protein kinase C alpha (PKC alpha) translocated to the perinuclear region and activated phospholipase D1, but the mechanism involved was not clear. Here, we provide evidence that Phe 663 (the 10th amino acid from C-terminus) of PKC alpha is essential for its translocation. A point mutation (F663D) completely blocked PKC alpha's binding to and activation of phospholipase D1. Further studies showed that deletion of the C-terminal nine amino acids of PKC alpha did not alter its translocation to the perinuclear region but deletion of the C-terminal 10 amino acids and the F663D mutation abolished this translocation. The F663D mutant was found to be resistant to dephosphorylation, which might account for its inability to translocate to the perinuclear region and activate PLD1, since dephosphorylation of PKC alpha is required for its relocation from plasma membrane to the perinuclear region.
journal_name
Biochem Biophys Res Communjournal_title
Biochemical and biophysical research communicationsauthors
Hu T,Exton JHdoi
10.1016/j.bbrc.2005.05.184subject
Has Abstractpub_date
2005-08-05 00:00:00pages
750-3issue
3eissn
0006-291Xissn
1090-2104pii
S0006-291X(05)01150-2journal_volume
333pub_type
杂志文章abstract::Trp140 of E. coli aspartate aminotransferase has been converted to Phe or Gly by site-directed mutagenesis. As compared to the wild-type enzyme, either of the mutant enzymes showed 10- to 100-fold increase in Km's for natural dicarboxylic substrates, but did not show appreciable changes in Km's for aromatic substrates...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(90)92037-z
更新日期:1990-03-16 00:00:00
abstract::Arthritis is a common autoimmune disease that is associated with progressive disability, systemic complications and early death. However, the underling mechanisms of arthritis are still unclear. Sirtuins are a NAD(+)-dependent class III deacetylase family, and regulate cellular stress, inflammation, genomic stability,...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2013.10.153
更新日期:2013-11-29 00:00:00
abstract::A soluble protein that binds malonyl-CoA without requiring cofactors has been purified from rat liver. Until saturated, it competes with fatty acid synthetase for free malonyl-CoA, temporarily reducing the rate of fatty acid synthesis at low levels of malonyl-CoA, as in fatty acid synthetase--coupled assays for acetyl...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(87)80111-0
更新日期:1987-08-31 00:00:00
abstract::When the F1-ATPase from the thermophilic bacterium, PS3, was inactivated by 90% with 7-chloro-4-nitro[14C]benzofurazan ([14C]Nbf-Cl) at pH 7.3 and then gel-filtered, 1.25 mols of [14C]Nbf-O-Tyr and less than 0.1 mol of Nbf-N-Lys were formed per mol of enzyme. After adjusting the pH of the gel-filtered, modified enzyme...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(84)80238-7
更新日期:1984-09-28 00:00:00
abstract::The bacteriophage T7 binary expression system is widely used in vitro for high level selective expression of cloned genes but its application to in vivo models has not yet been investigated. In the present work, we show that coinjection into fertilized zebrafish eggs of pE1T7R, an expression plasmid bearing the T7 RNA...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1997.7170
更新日期:1997-08-28 00:00:00
abstract::Circulating hormones are engaged in initiating and controlling the process of spermatogenesis, however, the Sertoli cell tight junctions prevent these substances from directly influencing the spermatogenic cells. Thus, the Sertoli cells play a vital role in regulating the spermatogenic process. Our studies correlate r...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1996.0789
更新日期:1996-05-15 00:00:00
abstract::Neutrophil extracellular traps (NETs) play a critical role in host antimicrobial response whereas they are also implicated in the pathogenesis of inflammatory and autoimmunediseases. Generation of reactiveoxygen species (ROS) is key to NETs formation. A variety of stimulatory ligands have been found to enhance ROS pro...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2019.02.142
更新日期:2019-04-16 00:00:00
abstract::Hydroxocobalamin is present in fairly large proportions both in foods and in the human body and apparently plays an important biological role. Since cyanocobalamin seems to play hardly any significant biochemical role in healthy humans, several physicians prefer to administer hydroxocobalamin to vitamin B12 deficient ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(84)90595-3
更新日期:1984-12-14 00:00:00
abstract::Previously, we showed that several minor macromolecular glycolipids accounting for less than 5% of the lipoteichoic acid (LTA) fraction from Enterococcus hirae ATCC 9790 possess cytokine-inducing activity, whereas the purified LTA does not. In other words, the immunobiological activity of the LTA fraction reported in ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2000.2921
更新日期:2000-06-24 00:00:00
abstract::Autophagy is a mechanism to digest cells' own components, and its importance in many physiological and pathological processes is being recognized. But the molecular mechanism that regulates autophagy is not understood in detail. In the present study, we found that cholesterol depletion induces macroautophagy. The cell...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2006.10.042
更新日期:2006-12-08 00:00:00
abstract::Phenobarbital (PB) increases metabolic capability of hepatocytes by its ability to activate numerous genes encoding various xenochemical-metabolizing enzymes such as cytochrome P450s and specific transferases. More than 35 years since PB induction was first reported, the key nuclear receptor CAR that mediates the indu...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章,评审
doi:10.1006/bbrc.2000.3557
更新日期:2000-10-14 00:00:00
abstract::We describe the fusion of enhanced green fluorescent protein to the C-terminus of the HsdS DNA sequence-specificity subunit of the Type I DNA modification methyltransferase M.EcoKI. The fusion expresses well in vivo and assembles with the two HsdM modification subunits. The fusion protein functions as a sequence-speci...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2010.06.069
更新日期:2010-07-23 00:00:00
abstract::Integrin LFA-1 regulates immune cell adhesion and trafficking by binding to ICAM-1 upon chemokine stimulation. Integrin-mediated clutch formation between extracellular ICAM-1 and the intracellular actin cytoskeleton is important for cell adhesion. We applied single-molecule tracking analysis to LFA-1 and ICAM-1 in liv...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2015.06.155
更新日期:2015-08-21 00:00:00
abstract::Ca2+ influx from the extracellular space in nonexcitable cells occurs via receptor-operated and refilling processes. However, they showed different characteristics with respect to the Mn2+ permeability, depletion of intracellular Ca2+ stores, and sensitivity to the K+ ionophore valinomycin in rat pancreatic acinar cel...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1999.0305
更新日期:1999-03-24 00:00:00
abstract::The hereditary renal carcinoma (RC) in the rat, originally reported by R. Eker in 1954, is an excellent example of a Mendelian dominantly inherited predisposition to a specific cancer in an experimental animal. Recently, we have identified a germline mutation of the sclerosis (Tsc2) gene in the Eker rat (Nature Geneti...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1996.0183
更新日期:1996-02-06 00:00:00
abstract::To repress gene transcription, the unliganded nuclear receptor (NR) recruits the N-CoR and SMRT corepressors via its direct association with the conserved motif within bipartite NR-interaction domains (IDs) of corepressors. We recently reported that SMRT is directly involved in the VDR-mediated repression via an ID1-s...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2008.12.155
更新日期:2009-02-13 00:00:00
abstract::Apoaequorin was targeted to the cytosol, nucleus, and endoplasmic reticulum of HeLa cells in order to determine the effect of Ca(2+) release from the ER on protein degradation. In resting cells apoaequorin had a rapid half-life (ca. 20-30 min) in the cytosol or nucleus, but was relatively stable for up to 24 h in the ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2000.2194
更新日期:2000-02-24 00:00:00
abstract::Runt-related transcription factor-2 (RUNX2) is expressed as two isoforms (type-I and type-II) differing only in their amino terminal sequences. The amino terminus of type-I contains MRIPV instead of MASNSLFSAVTPCQQSFFW in type-II. Although type-II mRNA has been considered osteoblast specific, the RUNX2 protein isoform...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2001.5363
更新日期:2001-08-10 00:00:00
abstract::Voltage-sensor domains (VSDs) in voltage-gated ion channels are thought to regulate the probability that a channel adopts an open conformation by moving vertically in the lipid bilayer. Here we characterized the movement of the VSDs of the prokaryotic voltage-gated sodium channel, NaChBac. Substitution of residue T110...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2010.07.070
更新日期:2010-08-27 00:00:00
abstract::Time-dependent secretion of immunoreactive-endothelin (IR-ET) from cultured porcine aortic endothelial cells was markedly suppressed by phosphoramidon is due to proteinase inhibitor. Analysis of the culture supernatant with or without phosphoramidon by reverse-phase high performance liquid chromatography confirmed tha...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/0006-291x(90)91198-2
更新日期:1990-09-14 00:00:00
abstract::Saccharomyces cerevisiae uso1-1 mutant stops the transport of secretory proteins from the endoplasmic reticulum to the Golgi apparatus at 37 degrees C. We found that this temperature-sensitive defect was suppressed either by increasing the concentration of calcium ion in the medium or by introducing in the cell the SL...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1996.0459
更新日期:1996-03-27 00:00:00
abstract::CREB3 (Luman) is a family member of ER resident transcription factors, which are cleaved upon the induction of ER stress. Their N-terminal fragments shuttle into the nucleus where they regulate the transcription of target genes. Here, we found that human CREB3 is phosphorylated within its transcription activation doma...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2019.12.118
更新日期:2020-03-12 00:00:00
abstract::Macrophage migration inhibitory factor (MIF) is known to contribute to the pathogenesis of inflammatory hyperalgesia and neuropathic pain. Prior studies have shown that Vitamin E treatment is associated with attenuated hyperalgesia and reduced neuropathic pain in rodents. Given these observations, we investigated the ...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2012.01.031
更新日期:2012-02-10 00:00:00
abstract::A type II DNA topoisomerase has been partially purified from calf thymus mitochondria by a combination of differential centrifugation and column chromatography. The mitochondrial enzyme was inhibited by amsacrine (m-AMSA) slightly at 0.5 microM, significantly at 5.0 microM, and completely at 50 microM. A similar profi...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/s0006-291x(05)80239-6
更新日期:1991-04-30 00:00:00
abstract::To investigate the maturation of neonatal erythrocytes and kinetics of globin expression, we induced CD34(+) cells purified from human umbilical cord blood to erythroid differentiation in different suspension culture systems containing human cord serum (CHS) and adult serum (AHS), respectively. The zeta- to alpha-glob...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.08.040
更新日期:2005-10-14 00:00:00
abstract::The biological significance of isoprenoid compounds such as ubiquinones, prenols and sterols have been well established. The presence and biological function of the two quinones Q6 and Q8 in the cattle filarial parasite Setaria digitata have already been reported. Inhibition of the function of quinone was already show...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.1994.2624
更新日期:1994-11-30 00:00:00
abstract::Diabetes mellitus (DM) is a risk factor for abnormal heart development, but the molecular mechanism remains obscure. Histone deacetylase 11 (HDAC11), the most recently identified histone deacetylase, is the sole member of class IV HDACs. However, its role in diabetic cardiac injury is still poorly understood. In the p...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2018.04.090
更新日期:2018-09-05 00:00:00
abstract::Mitochondrial pyruvate carrier (MPC), composed of MPC1 and MPC2, can modulate pyruvate oxidation in mitochondrial and MPC1 expression correlates with poor prognosis of multiple cancers. Here, we reported that MPC1 is acetylated and its main acetylation sites are: K45 and K46. Sirt3 binds to and deacetylates MPC1. High...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2015.11.036
更新日期:2015-12-25 00:00:00
abstract::Experimental gene transfer has permitted a wide variety of studies on gene regulation and function. However, possible effects of the introduced DNA on cellular metabolism are not well understood. Here we demonstrated that introduction of DNA into a promonocytic cell line, U937, by electroporation caused extensive cell...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1006/bbrc.2000.2388
更新日期:2000-04-02 00:00:00
abstract::Helicobacter pylori releases VacA both as free-soluble and as outer membrane vesicle (OMV)-associated toxin. In this study, we investigated the amount of VacA released in each of the two forms and the role of each form in VacA-induced cell vacuolation in vitro. We found that: (1) free-soluble toxin accounted for about...
journal_title:Biochemical and biophysical research communications
pub_type: 杂志文章
doi:10.1016/j.bbrc.2005.09.035
更新日期:2005-11-11 00:00:00