Heat shock treatment decreases E2F1-DNA binding and E2F1 levels in human A549 cells.

Abstract:

:The transcription factor E2F1 plays a decisive role in the G1/S and G2/M checkpoint transitions of proliferating cells. Because cells are arrested at these checkpoints after heat shock it was of interest to test heat shock effects on E2F1 activity. In human A549 cells, heat shock (44 degrees C, 30 min) caused an immediate reduction of E2F1-DNA binding as determined by electrophoretic mobility shift assay (EMSA). The complex of E2F1-DNA with the retinoblastoma protein (pRB) was also reduced after heat shock. This indicates that the former effect is not caused by a lower phosphorylation and therefore a higher binding capacity of pRB. Western blot analyses showed that the lower E2F1-DNA binding is probably due to a decrease of the E2F1 level (40% of the controls) induced by heat shock. This result was confirmed by an experiment with HeLa cells in which heat shock decreased the level to 60% of the controls. In order to test whether this decrease resulted from inhibition of transcription, RT-PCR measurements were conducted and showed only a slight reduction of the E2F1 mRNA (89% of controls). This indicates that the heat shock effect is not predominantly caused by transcriptional inhibition. Six hours after heat shock the E2F1-DNA binding capacity recovered to control levels. These results provide evidence for E2F1 involvement in heat shock-induced cell cycle arrests at the G1/S and G2/M checkpoints, which also may be relevant for hyperthermic cancer therapy.

journal_name

Biol Chem

journal_title

Biological chemistry

authors

Gerullis D,Rensing L,Beyersmann D

doi

10.1515/BC.2003.017

keywords:

subject

Has Abstract

pub_date

2003-01-01 00:00:00

pages

161-7

issue

1

eissn

1431-6730

issn

1437-4315

journal_volume

384

pub_type

杂志文章
  • Switchable inteins for conditional protein splicing.

    abstract::Synthetic biologists aim at engineering controllable biological parts such as DNA, RNA and proteins in order to steer biological activities using external inputs. Proteins can be controlled in several ways, for instance by regulating the expression of their encoding genes with small molecules or light. However, post-t...

    journal_title:Biological chemistry

    pub_type: 杂志文章,评审

    doi:10.1515/hsz-2018-0309

    authors: Di Ventura B,Mootz HD

    更新日期:2019-03-26 00:00:00

  • Imaging morphological details and pathological differences of red blood cells using tapping-mode AFM.

    abstract::The surface topography of red blood cells (RBCs) was investigated under near-physiological conditions using atomic force microscopy (AFM). An immobilization protocol was established where RBCs are coupled via molecular bonds of the membrane glycoproteins to wheat germ agglutinin (WGA), which is covalently and flexibly...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/BC.2004.124

    authors: Kamruzzahan AS,Kienberger F,Stroh CM,Berg J,Huss R,Ebner A,Zhu R,Rankl C,Gruber HJ,Hinterdorfer P

    更新日期:2004-10-01 00:00:00

  • Reverse action of ribonuclease T1 in frozen aqueous systems.

    abstract::We have studied ribonuclease T1 (EC 3.1-27.3)-catalysed synthesis of guanylyl-(3'-->5')cytidine in frozen aqueous reaction mixtures at -10 degrees C and in solution at 0 degree C in order to investigate whether ribonuclease-catalysed synthetic reactions can take advantage of the yield-increasing effect of freezing as ...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/bchm.1997.378.2.115

    authors: Haensler M,Hahn U,Jakubke HD

    更新日期:1997-02-01 00:00:00

  • Eremophilane-type sesquiterpenes from fungi and their medicinal potential.

    abstract::Eremophilanes are sesquiterpenes with a rearranged carbon skeleton formed both by plants and fungi, however, almost no plant eremophilanes are found in fungi. These eremophilanes possess mainly phytotoxic, antimicrobial, anticancer and immunomodulatory properties and in this review fungal eremophilanes with bioactivit...

    journal_title:Biological chemistry

    pub_type: 杂志文章,评审

    doi:10.1515/hsz-2017-0171

    authors: Yuyama KT,Fortkamp D,Abraham WR

    更新日期:2017-12-20 00:00:00

  • Protein disulfide isomerase in spore germination and cell division.

    abstract::Protein disulfide isomerase (PDI) is a protein of the endoplasmic reticulum (ER) that is essential for the unscrambling of nonnative disulfide bonds. Here, we have determined the importance of PDI to both spore germination and vegetative cell division. To vary the concentration of PDI in the ER, we used plasmids that ...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/bchm.1997.378.5.431

    authors: Laboissière MC,Sturley SL,Raines RT

    更新日期:1997-05-01 00:00:00

  • When core competence is not enough: functional interplay of the DEAD-box helicase core with ancillary domains and auxiliary factors in RNA binding and unwinding.

    abstract::DEAD-box helicases catalyze RNA duplex unwinding in an ATP-dependent reaction. Members of the DEAD-box helicase family consist of a common helicase core formed by two RecA-like domains. According to the current mechanistic model for DEAD-box mediated RNA unwinding, binding of RNA and ATP triggers a conformational chan...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/hsz-2014-0277

    authors: Rudolph MG,Klostermeier D

    更新日期:2015-08-01 00:00:00

  • Isoaspartate-containing amyloid precursor protein-derived peptides alter efficacy and specificity of potential beta-secretases.

    abstract::Neuritic plaques of Alzheimer patients are composed of multiple protein components. Among them, the amyloid beta-peptides (Abeta) 1-40/42 and further N- and C-terminally modified fragments of Abeta are highly abundant. Most prominent are the isoaspartate (isoAsp)-Abeta peptides and pyroglutamyl (pGlu)-Abeta. While pGl...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/BC.2008.125

    authors: Böhme L,Hoffmann T,Manhart S,Wolf R,Demuth HU

    更新日期:2008-08-01 00:00:00

  • A structural model of 20S immunoproteasomes: effect of LMP2 codon 60 polymorphism on expression, activity, intracellular localisation and insight into the regulatory mechanisms.

    abstract::The immunoproteasome subunit low molecular weight protein 2 (LMP2) codon 60 polymorphism has been associated with autoimmune diseases. It has also been demonstrated to influence susceptibility to TNF-alpha-induced apoptosis in blood cells and proteasome activity in aged human brain. In the present study, an in silico ...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/BC.2006.056

    authors: Mishto M,Santoro A,Bellavista E,Sessions R,Textoris-Taube K,Dal Piaz F,Carrard G,Forti K,Salvioli S,Friguet B,Kloetzel PM,Rivett AJ,Franceschi C

    更新日期:2006-04-01 00:00:00

  • Activation profiles of human kallikrein-related peptidases by matrix metalloproteinases.

    abstract::The 15 human kallikrein-related peptidases (KLKs) are clinically important biomarkers and therapeutic targets of interest in inflammation, cancer, and neurodegenerative disease. KLKs are secreted as inactive pro-forms (pro-KLKs) that are activated extracellularly by specific proteolytic release of their amino-terminal...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/hsz-2012-0249

    authors: Yoon H,Blaber SI,Li W,Scarisbrick IA,Blaber M

    更新日期:2013-01-01 00:00:00

  • Bauhinia proteinase inhibitor-based synthetic fluorogenic substrates for enzymes isolated from insect midgut and caterpillar bristles.

    abstract::Bauhinia ungulata factor Xa inhibitor (BuXI) inactivates factor Xa and LOPAP, a prothrombin activator proteinase isolated from the venom of Lonomia obliqua caterpillar bristles. The reactive site of the enzyme-inhibitor interaction was explored to design specific substrates for both enzymes. Methionine is crucial for ...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/BC.2003.055

    authors: Andrade SA,Santomauro-Vaz EM,Lopes AR,Chudzinski-Tavassi AM,Juliano MA,Terra WR,Sampaio MU,Sampaio CA,Oliva ML

    更新日期:2003-03-01 00:00:00

  • Calcium-sensing receptor: roles in and beyond systemic calcium homeostasis.

    abstract::The cloning of a Ca2+(0)-sensing receptor (CaR) from parathyroid and kidney, coupled with the identification of inherited disorders in Ca2+(0)-sensing resulting from inactivating or activating mutations of this CaR, has provided substantial insights into how Ca2+(0) is regulated at a systemic level. The CaR plays a ce...

    journal_title:Biological chemistry

    pub_type: 杂志文章,评审

    doi:

    authors: Chattopadhyay N,Vassilev PM,Brown EM

    更新日期:1997-08-01 00:00:00

  • MicroRNA regulation of airway smooth muscle function.

    abstract::Airway smooth muscle (ASM) controls airway narrowing and plays a pivotal role in the pathogenesis of asthma. MicroRNAs are small yet powerful gene tuners that regulate diverse cellular processes. Recent studies have demonstrated the versatile role of microRNAs in regulating multiple ASM phenotypes that are critically ...

    journal_title:Biological chemistry

    pub_type: 杂志文章,评审

    doi:10.1515/hsz-2015-0298

    authors: Sun M,Lu Q

    更新日期:2016-06-01 00:00:00

  • T-SP1: a novel serine protease-like protein predominantly expressed in testis.

    abstract::Here, we describe a novel member in the group of membrane-anchored chymotrypsin (S1)-like serine proteases, namely testis serine protease 1 (T-SP1), as it is principally expressed in testis tissue. The human T-SP1 gene encompasses 28.7 kb on the short arm of chromosome 8 and consists of seven exons. Rapid amplificatio...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/BC.2008.170

    authors: Neth P,Profanter B,Geissler C,Nägler DK,Nerlich A,Sommerhoff CP,Jochum M

    更新日期:2008-12-01 00:00:00

  • Structure and function of bacterial dynamin-like proteins.

    abstract::Membrane dynamics are essential for numerous cellular processes in eukaryotic and prokaryotic cells. In eukaryotic cells, membrane fusion and fission are often catalyzed by large GTPases of the dynamin protein family. These proteins couple GTP hydrolysis to membrane deformation, which eventually leads to fusion or fis...

    journal_title:Biological chemistry

    pub_type: 杂志文章,评审

    doi:10.1515/hsz-2012-0185

    authors: Bramkamp M

    更新日期:2012-11-01 00:00:00

  • An efficient method for the preparation of long heteroduplex DNA as substrate for mismatch repair by the Escherichia coli MutHLS system.

    abstract::We present a method that allows preparing long DNA containing defined mismatches without the use of gel electrophoretic or chromatographic purification steps. The preparation starts with the synthesis of two PCR products, which are identical except for those positions that will later form the mismatches. One of the PC...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/BC.2002.166

    authors: Thomas E,Pingoud A,Friedhoff P

    更新日期:2002-09-01 00:00:00

  • Functional ribosome biogenesis is a prerequisite for p53 destabilization: impact of chemotherapy on nucleolar functions and RNA metabolism.

    abstract::The production and processing of ribosomal RNA is a complex and well-coordinated nucleolar process for ribosome biogenesis. Progress in understanding nucleolar structure and function has lead to the unexpected discovery of the nucleolus as a highly sensitive sensor of cellular stress and an important regulator of the ...

    journal_title:Biological chemistry

    pub_type: 杂志文章,评审

    doi:10.1515/hsz-2013-0153

    authors: Burger K,Eick D

    更新日期:2013-09-01 00:00:00

  • Extracellular proteases of Staphylococcus spp.

    abstract::Bacterial proteases secreted into an infected host may exhibit a wide range of pathogenic potentials. Staphylococci, in particular Staphylococcus aureus, are known to produce several extracellular proteases, including serine-, cysteine- and metalloenzymes. Their insensitivity to most human plasma protease inhibitors a...

    journal_title:Biological chemistry

    pub_type: 杂志文章,评审

    doi:10.1515/BC.2002.116

    authors: Dubin G

    更新日期:2002-07-01 00:00:00

  • Emerging roles for non-selenium containing ER-resident glutathione peroxidases in cell signaling and disease.

    abstract::Maintenance of cellular redox control is pivotal for normal cellular functions and cell fate decisions including cell death. Among the key cellular redox systems in mammals, the glutathione peroxidase (GPX) family of proteins is the largest conferring multifaceted functions and affecting virtually all cellular process...

    journal_title:Biological chemistry

    pub_type: 杂志文章,评审

    doi:10.1515/hsz-2020-0286

    authors: Buday K,Conrad M

    更新日期:2020-10-22 00:00:00

  • Purification of Drosophila melanogaster ultraspiracle protein and analysis of its A/B region-dependent dimerization behavior in vitro.

    abstract::Two members of the nuclear receptor superfamily, EcR (ecdysteroid receptor protein) and Usp (Ultraspiracle), heterodimerize to form a functional receptor for the steroid hormone 20-hydroxyecdysone and thus enable it to coordinate morphogenetic events during insect metamorphosis. N-terminally His-tagged Usp was overexp...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/BC.2003.007

    authors: Rymarczyk G,Grad I,Rusek A,Oświecimska-Rusin K,Niedziela-Majka A,Kochman M,Ozyhar A

    更新日期:2003-01-01 00:00:00

  • The molecular medicine of acid ceramidase.

    abstract::Acid ceramidase (N-acylsphingosine deacylase, EC 3.5.1.23; AC) is the lipid hydrolase responsible for the degradation of ceramide into sphingosine and free fatty acids within lysosomes. The enzymatic activity was first identified over four decades ago and is deficient in two rare inherited disorders, Farber lipogranul...

    journal_title:Biological chemistry

    pub_type: 杂志文章,评审

    doi:10.1515/hsz-2014-0290

    authors: Frohbergh M,He X,Schuchman EH

    更新日期:2015-06-01 00:00:00

  • Tripeptidyl-peptidase I in health and disease.

    abstract::The lysosomal lumen contains numerous acidic hydrolases involved in the degradation of carbohydrates, lipids, proteins, and nucleic acids, which are basic cell components that turn over continuously within the cell and/or are ingested from outside of the cell. Deficiency in almost any of these hydrolases causes accumu...

    journal_title:Biological chemistry

    pub_type: 杂志文章,评审

    doi:10.1515/BC.2006.135

    authors: Golabek AA,Kida E

    更新日期:2006-08-01 00:00:00

  • Developing an effective RNA interference strategy against a plus-strand RNA virus: silencing of coxsackievirus B3 and its cognate coxsackievirus-adenovirus receptor.

    abstract::Coxsackievirus B3 (CVB-3) is a plus-strand RNA virus that is believed to be the most common causal agent of viral myocarditis. Since no specific treatment for CVB-3 infections is available to date, we and others have recently started to develop RNA interference (RNAi) approaches to prevent virus propagation. Here we d...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/BC.2005.100

    authors: Werk D,Schubert S,Lindig V,Grunert HP,Zeichhardt H,Erdmann VA,Kurreck J

    更新日期:2005-09-01 00:00:00

  • The DEAH helicase DHX36 and its role in G-quadruplex-dependent processes.

    abstract::DHX36 is a member of the DExD/H box helicase family, which comprises a large number of proteins involved in various cellular functions. Recently, the function of DHX36 in the regulation of G-quadruplexes (G4s) was demonstrated. G4s are alternative nucleic acid structures, which influence many cellular pathways on a tr...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/hsz-2020-0292

    authors: Schult P,Paeschke K

    更新日期:2020-10-01 00:00:00

  • Calpain function in the differentiation of mesenchymal stem cells.

    abstract::Calpain is a calcium-activated non lysosomal neutral thiol protease (EC 3.4.22.17) present in a wide variety of eukaryotic cells. Calpain is usually present as an inactive form and is activated by calcium ions and phospholipids. The ability of calpain to alter, by limited proteolysis, the activity or function of numer...

    journal_title:Biological chemistry

    pub_type: 杂志文章,评审

    doi:10.1515/BC.2002.079

    authors: Yajima Y,Kawashima S

    更新日期:2002-05-01 00:00:00

  • Structure of cruzipain/cruzain inhibitors isolated from Bauhinia bauhinioides seeds.

    abstract::The saline extract of Bauhinia bauhinioides dry seeds was shown to inhibit cruzipain, a cysteine proteinase from Trypanosoma cruzi. The inhibitory activity was assigned to a protein with 164 amino acid residues and molecular mass of 18 034 Da that was purified by chromatography on DEAE-Sephadex, trypsin-Sepharose (rem...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/BC.2001.103

    authors: de Oliveira C,Santana LA,Carmona AK,Cezari MH,Sampaio MU,Sampaio CA,Oliva ML

    更新日期:2001-05-01 00:00:00

  • Binding and activation of the human plasma kinin-forming system on the cell walls of Candida albicans and Candida tropicalis.

    abstract::Bacterial infections often upregulate the plasma kinin-forming cascade of the host (the 'contact system') which is triggered by adsorption of high molecular mass kininogen (HK), coagulation factor XII (FXII) and prekallikrein (pHPK) on the host or pathogen cell surfaces. A possible activation of the contact system upo...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/BC.2009.145

    authors: Karkowska-Kuleta J,Kozik A,Rapala-Kozik M

    更新日期:2010-01-01 00:00:00

  • KLKs and their hormone-like signaling actions: a new life for the PSA-KLK family.

    abstract::Human kallikrein-related peptidases (KLKs), including the well-known prostate cancer biomarker, prostate-specific antigen (PSA-KLK3), along with 14 other serine proteinase KLK family members are now known to regulate cells by cleaving and activating members of the G-protein-coupled proteinase-activated receptor (PAR) ...

    journal_title:Biological chemistry

    pub_type: 杂志文章,评审

    doi:10.1515/hsz-2014-0123

    authors: Hollenberg MD

    更新日期:2014-09-01 00:00:00

  • Purification of chrysancorin, a novel antifungal protein with mitogenic activity from garland chrysanthemum seeds.

    abstract::A novel antifungal protein, designated chrysancorin, was isolated from seeds of Chrysanthemum coronarium var. spatiosum with a procedure involving ion exchange chromatography on DEAE-cellulose, affinity chromatography on Affi-gel blue resin, ion exchange chromatography on SP-Sepharose and FPLC-gel filtration on Superd...

    journal_title:Biological chemistry

    pub_type: 杂志文章

    doi:10.1515/BC.2001.118

    authors: Wang H,Ye XY,Ng TB

    更新日期:2001-06-01 00:00:00

  • Dynamic organization of the mitochondrial protein import machinery.

    abstract::Mitochondria contain elaborate machineries for the import of precursor proteins from the cytosol. The translocase of the outer mitochondrial membrane (TOM) performs the initial import of precursor proteins and transfers the precursors to downstream translocases, including the presequence translocase and the carrier tr...

    journal_title:Biological chemistry

    pub_type: 杂志文章,评审

    doi:10.1515/hsz-2016-0145

    authors: Straub SP,Stiller SB,Wiedemann N,Pfanner N

    更新日期:2016-11-01 00:00:00

  • Septin functions in organ system physiology and pathology.

    abstract::Human septins comprise a family of 13 genes that encode for >30 protein isoforms with ubiquitous and tissue-specific expressions. Septins are GTP-binding proteins that assemble into higher-order oligomers and filamentous polymers, which associate with cell membranes and the cytoskeleton. In the last decade, much progr...

    journal_title:Biological chemistry

    pub_type: 杂志文章,评审

    doi:10.1515/hsz-2013-0233

    authors: Dolat L,Hu Q,Spiliotis ET

    更新日期:2014-02-01 00:00:00