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

abstract：:The reverse action of a trypsin-free elastase isolated from porcine pancreas was studied in frozen aqueous systems. Under frozen state conditions, porcine pancreatic elastase was able to catalyse peptide bond formation more effectively than in solution at room temperature. The acceptance of free amino acids as nucleop...

journal_title：Biological chemistry

authors： Haensler M,Wehofsky N,Gerisch S,Wissmann JD,Jakubke HD

更新日期：1998-01-01 00:00:00

abstract：:The infectivity and pathogenicity of influenza virus are primarily determined by host cellular trypsin-type processing proteases which cleave the viral membrane fusion glycoprotein hemagglutinin (HA). Therefore the distribution of the processing protease is a major determinant of the infectious organ tropism. The comm...

journal_title：Biological chemistry

authors： Yao D,Chen Y,Kuwajima M,Shiota M,Kido H

更新日期：2004-06-01 00:00:00

abstract：:Invadolysin is a novel metalloprotease conserved amongst metazoans that is essential for life in Drosophila. We previously showed that invadolysin was essential for the cell cycle and cell migration, linking to metabolism through a role in lipid storage and interaction with mitochondrial proteins. In this study we dem...

journal_title：Biological chemistry

authors： Chang CW,Abhinav K,Di Cara F,Panagakou I,Vass S,Heck MM

更新日期：2017-03-01 00:00:00

abstract：:Oncogenic transformation is dependent on activated membrane-associated NADPH oxidase (NOX). However, the resultant extracellular superoxide anions are also driving the NO/peroxynitrite and the HOCl pathway, which eliminates NOX-expressing transformed cells through selective apoptosis induction. Tumor progression is de...

journal_title：Biological chemistry

authors： Böhm B,Heinzelmann S,Motz M,Bauer G

更新日期：2015-12-01 00:00:00

abstract：:Here we report a detailed analysis of magnesium (Mg²+) ion effects on furin hydrolysis of fluorescent resonance energy transfer decapeptide substrates derived from canonical R-X-K/R-R furin cleavage motifs within certain viral envelope glycoproteins and eukaryotic proproteins. Using virus-derived sequences a selective...

journal_title：Biological chemistry

authors： Izidoro MA,Assis DM,Oliveira V,Santos JA,Juliano MA,Lindberg I,Juliano L

更新日期：2010-09-01 00:00:00

abstract：:The main function of the epidermis is to establish a vital multifunctional barrier between the body and its external environment. A defective epidermal barrier is one of the key features of atopic dermatitis (AD), a chronic and relapsing inflammatory skin disorder that affects up to 20% of children and 2-3% of adults ...

journal_title：Biological chemistry

authors： Le Lamer M,Pellerin L,Reynier M,Cau L,Pendaries V,Leprince C,Méchin MC,Serre G,Paul C,Simon M

更新日期：2015-11-01 00:00:00

abstract：:N-acyl homoserine lactones (AHLs) are quorum sensing (QS) signal molecules used by most Gram-negative pathogenic bacteria. In this article the lactonase activity of the preparations based on hexahistidine-tagged organophosphorus hydrolase (His6-OPH) towards AHLs was studied. Initially, three of the most interesting β-...

journal_title：Biological chemistry

authors： Aslanli A,Lyagin I,Efremenko E

更新日期：2018-07-26 00:00:00

abstract：:Latent episomal genomes of Epstein-Barr virus, a human gammaherpesvirus, represent a suitable model system for studying replication and methylation of chromosomal DNA in mammals. We analyzed the methylation patterns of CpG dinucleotides in the latent origin of DNA replication of Epstein-Barr virus using automated fluo...

journal_title：Biological chemistry

authors： Salamon D,Takacs M,Myöhänen S,Marcsek Z,Berencsi G,Minarovits J

更新日期：2000-02-01 00:00:00

abstract：:We developed a novel method for the simultaneous extraction and analysis of total tissue RNA and DNA to quantify the RNA and DNA oxidation products 8-oxo-7,8-dihydroguanosine and 8-oxo-7,8-dihydro-2'-deoxyguanosine using HPLC coupled to electrochemical detection (HPLC-ECD). The protein denaturing agents guanidine thio...

journal_title：Biological chemistry

authors： Hofer T,Seo AY,Prudencio M,Leeuwenburgh C

更新日期：2006-01-01 00:00:00

abstract：:Nitrogen dioxide (*NO2) is an oxidizing free radical which can initiate a variety of destructive pathways in living systems, and several diseases are suspected to be connected with both exogenously and endogenously formed *NO2. Peroxynitrite (ONOO-/ONOOH) is believed to be an important endogenous source of *NO2 radica...

journal_title：Biological chemistry

authors： Kirsch M,Korth HG,Sustmann R,de Groot H

更新日期：2002-03-01 00:00:00

abstract：:Five moeA mutants were generated by replacing some conserved amino acids of MoeA by site-directed mutagenesis. The mutants were assayed for the ability to restore in vivo nitrate reductase activity of the moeA mutant Escherichia coli JRG97 and in vitro Neurospora crassa nit-1 nitrate reductase activity. The replacemen...

journal_title：Biological chemistry

authors： Sandu C,Brandsch R

更新日期：2002-02-01 00:00:00

abstract：:Induction of apoptosis by selective BH3-mimetics is currently investigated as a novel strategy for cancer treatment. Here, we report that selective BH3-mimetics induce apoptosis in a variety of hematological malignancies. Apoptosis is accompanied by severe mitochondrial toxicities upstream of caspase activation. Speci...

journal_title：Biological chemistry

authors： Henz K,Al-Zebeeby A,Basoglu M,Fulda S,Cohen GM,Varadarajan S,Vogler M

更新日期：2019-01-28 00:00:00

abstract：:Most excitatory synaptic transmissions in the central nervous system are mediated by the neurotransmitter glutamate. Binding of glutamate released from the presynaptic membrane causes glutamate receptors in the postsynaptic membrane to open, which results in a transient depolarization of the postsynaptic membrane. The...

journal_title：Biological chemistry

authors： Nakagawa T,Cheng Y,Sheng M,Walz T

更新日期：2006-02-01 00:00:00

abstract：:Kallikrein-related peptidase 2 (KLK2) degrades insulin-like growth factor (IGF)-binding protein-3 (IGFBP-3) in vitro. IGFBP-3 forms complexes with IGFs, preventing them from binding to their receptors and stimulating cell proliferation and survival. IGF-independent actions have also been described for IGFBP-3. The deg...

journal_title：Biological chemistry

authors： Hekim C,Riipi T,Weisell J,Närvänen A,Koistinen R,Stenman UH,Koistinen H

更新日期：2010-04-01 00:00:00

abstract：:The influence of the cellular milieu, a complex and crowded solvent, is often neglected when biomolecular structure and function are studied in vitro. To mimic the cellular environment, crowding effects are commonly induced in vitro using artificial crowding agents like Ficoll or dextran. However, it is unclear if suc...

journal_title：Biological chemistry

authors： Gnutt D,Ebbinghaus S

更新日期：2016-01-01 00:00:00

abstract：:Angiotensin-converting enzyme (ACE) plays an important role in blood pressure control. ACE also has effects on renal function, reproduction, hematopoiesis, and several aspects of the immune response. ACE 10/10 mice overexpress ACE in monocytic cells; macrophages from ACE 10/10 mice demonstrate increased polarization t...

journal_title：Biological chemistry

authors： Bernstein KE,Gonzalez-Villalobos RA,Giani JF,Shah K,Bernstein E,Janjulia T,Koronyo Y,Shi PD,Koronyo-Hamaoui M,Fuchs S,Shen XZ

更新日期：2014-10-01 00:00:00

abstract：:Studies of extracellular matrix (ECM) biology in the nervous system have mainly focused on laminin, fibronectin and tenascin-R, proteins that are present during nervous system development and normal function. However, during disease, fibrin, which physiologically is not present in the nervous tissue, is detected at ne...

journal_title：Biological chemistry

authors： Akassoglou K,Strickland S

更新日期：2002-01-01 00:00:00

abstract：:The relationship between the structure and activity of meta- and para-hydroxylated monophenols was studied during their tyrosinase-catalysed hydroxylation and the rate-limiting steps of the reaction mechanism were identified. The para-hydroxylated substrates permit us to study the effect of a substituent (R) in the ca...

journal_title：Biological chemistry

authors： Fenoll LG,Rodríguez-López JN,Varón R,García-Ruiz PA,García-Cánovas F,Tudela J

更新日期：2000-04-01 00:00:00

abstract：:Many neurodegenerative disorders and syndromes are associated with an excessive generation of reactive oxygen species (ROS) and oxidative stress. The pathways to nerve cell death induced by diverse potential neurotoxins such as peptides, excitatory amino acids, cytokines or synthetic drugs commonly share oxidative dow...

journal_title：Biological chemistry

authors： Behl C,Moosmann B

更新日期：2002-03-01 00:00:00

abstract：:G-protein coupled receptor 119 (GPR119) is emerging as a potential target for the treatment of type 2 diabetes with beneficial effects on glucose homeostasis. This study assessed the insulin-secreting properties of various GPR119 agonists and the distribution of GPR119 in pancreatic islets. Endogenous ligands [oleoyle...

journal_title：Biological chemistry

authors： Moran BM,Abdel-Wahab YH,Flatt PR,McKillop AM

更新日期：2014-04-01 00:00:00

abstract：:The physiological roles of the intracellular iron and redox regulatory systems are intimately linked. Iron is an essential trace element for most organisms, yet elevated cellular iron levels are a potent generator and amplifier of reactive oxygen species and redox stress. Proteins binding iron or iron-sulfur (Fe/S) cl...

journal_title：Biological chemistry

authors： Mühlenhoff U,Braymer JJ,Christ S,Rietzschel N,Uzarska MA,Weiler BD,Lill R

更新日期：2020-11-26 00:00:00

abstract：:Human pro-matrix metalloproteinase 3 (proMMP-3) lacking the N-terminal 34 amino acids and the C-terminal hemopexin-like domain was expressed in E. coli and used to investigate the process of proenzyme activation and its interaction with an endogenous inhibitor TIMP-1 during activation. The truncated precursor was puri...

journal_title：Biological chemistry

authors： Suzuki K,Kan CC,Hung W,Gehring MR,Brew K,Nagase H

更新日期：1998-02-01 00:00:00

abstract：:Seven purified proteins may be combined to reconstitute regulated, promoter-dependent RNA polymerase II transcription: five general transcription factors, Mediator, and RNA polymerase II. The entire system has been conserved across species from yeast to humans. The structure of RNA polymerase II, consisting of 10 poly...

journal_title：Biological chemistry

authors： Kornberg RD

更新日期：2001-08-01 00:00:00

abstract：:Group II introns are autocatalytic RNAs which self-splice in vitro. However, in vivo additional protein factors might be involved in the splicing process. We used an affinity chromatography method called 'StreptoTag' to identify group II intron binding proteins from Saccharomyces cerevisiae. This method uses a hybrid ...

journal_title：Biological chemistry

authors： Böck-Taferner P,Wank H

更新日期：2004-07-01 00:00:00

abstract：:One of the control mechanisms of cathepsin B biosynthesis and trafficking operates through alternative splicing of pre-mRNA. An mRNA lacking exon 2 is more efficiently translated than that containing all exons, and may be responsible for elevated biosynthesis and enzyme routing to the extracellular space, with critica...

journal_title：Biological chemistry

authors： Baici A,Müntener K,Willimann A,Zwicky R

更新日期：2006-08-01 00:00:00

abstract：:Fluorescence correlation spectroscopy (FCS) was used in monitoring human parvovirus B19 virus-like particle (VLP) antibody complexes from acute phase and past-immunity serum samples. The Oregon Green 488-labeled VLPs gave an average diffusion coefficient of 1.7 x 10(-7) cm2 s(-1) with an apparent hydrodynamic radius o...

journal_title：Biological chemistry

authors： Toivola J,Michel PO,Gilbert L,Lahtinen T,Marjomäki V,Hedman K,Vuento M,Oker-Blom C

更新日期：2004-01-01 00:00:00

abstract：:Major advances have been made during the last decade in our understanding of adrenal steroid hormone biosynthesis. Two key players in these pathways are the human mitochondrial cytochrome P450 enzymes CYP11B1 and CYP11B2, which catalyze the final steps in the biosynthesis of cortisol and aldosterone. Using data from m...

journal_title：Biological chemistry

authors： Bureik M,Lisurek M,Bernhardt R

更新日期：2002-10-01 00:00:00

abstract：:Recent progress in the identification and partial characterization of novel genes encoding cysteine proteases of the papain family has considerably increased our knowledge of this family of enzymes. Kinetic data available to date for this large family indicate relatively broad, overlapping specificities for most enzym...

journal_title：Biological chemistry

authors： Nägler DK,Ménard R

更新日期：2003-06-01 00:00:00

abstract：:The major enzymatic activity of the ribosome is the catalysis of peptide bond formation. The active site -- the peptidyl transferase center -- is composed of ribosomal RNA (rRNA), and interactions between rRNA and the reactants, peptidyl-tRNA and aminoacyl-tRNA, are crucial for the reaction to proceed rapidly and effi...

journal_title：Biological chemistry

authors： Beringer M,Rodnina MV

更新日期：2007-07-01 00:00:00

abstract：:The mitochondrial DNA (mtDNA) encompasses two classes of functionally important sequence variants: recent pathogenic mutations and ancient adaptive polymorphisms. To rapidly and cheaply evaluate both classes of single nucleotide variants (SNVs), we have developed an integrated system in which mtDNA SNVs are analyzed b...

journal_title：Biological chemistry

authors： Poole JC,Procaccio V,Brandon MC,Merrick G,Wallace DC

更新日期：2010-10-01 00:00:00