The caffeine-sensitive Ca2+ store in bovine adrenal chromaffin cells; an examination of its role in triggering secretion and Ca2+ homeostasis.

abstract：:Temporary inhibition of the cysteine proteinases papain and cathepsin L was observed with several hairpin loop mutants of recombinant chicken cystatin at enzyme concentrations above nanomolar. Kinetic modelling of inhibition data, gel electrophoresis and amino acid sequencing revealed that reappearance of papain activ...

journal_title：FEBS letters

authors： Machleidt W,Nägler DK,Assfalg-Machleidt I,Stubbs MT,Fritz H,Auerswald EA

更新日期：1995-03-20 00:00:00

abstract：:In hepatocytes from control rats, the ureogenic action of epinephrine is mainly mediated through alpha 1-adrenoceptors and the effect is independent of the presence of extracellular calcium. In hepatocytes from adrenalectomized rats, both alpha 1- and beta-adrenoceptors are involved in the action of epinephrine. Furth...

journal_title：FEBS letters

authors： Hernández-Sotomayor SM,García-Sáinz JA

更新日期：1984-01-30 00:00:00

abstract：:The NusB protein is involved in transcriptional regulation in bacteriophage lambda. NusB binds to the RNA form of the nut site and along with N, NusA, NusE and NusG, stabilizes the RNA polymerase transcription complex and allows stable, persistent antitermination. NusB contains a 10 residue Arg-rich RNA-binding motif ...

journal_title：FEBS letters

authors： Altieri AS,Mazzulla MJ,Zhou H,Costantino N,Court DL,Byrd RA

更新日期：1997-09-29 00:00:00

abstract：:The expression of the cytochrome P4501A1 gene, CYP1A1, is induced by e.g. 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD) mainly by transcriptional mechanisms. The inducers mediate their effect upon binding and activation of the aryl hydrocarbon receptor (AHR) transcription-factor complex. Utilizing chimeric CYP1A1/CAT con...

journal_title：FEBS letters

authors： Jørgensen EC,Autrup H

更新日期：1995-05-29 00:00:00

abstract：:Respiration in all cells depends upon synthesis of ATP by the ATP synthase complex, a rotary motor enzyme. The structure of the catalytic moiety of ATP synthase, the so-called F(1) headpiece, is well established. F(1) is connected to the membrane-bound and ion translocating F(0) subcomplex by a central stalk. A periph...

journal_title：FEBS letters

authors： Dudkina NV,Heinemeyer J,Keegstra W,Boekema EJ,Braun HP

更新日期：2005-10-24 00:00:00

abstract：:DOCK and Affinity studies were carried out to study the binding of D- and L-penicillamine to the transactivator protein (tat) of human immunodeficiency virus type 1 (HIV-1). These studies reveal a selective binding of D-penicillamine to the cysteine-rich region covering amino acid residues 20-38 of the tat protein. A ...

journal_title：FEBS letters

authors： Demirhan I,Kanyalkar M,Chandra A,Doerr HW,Coutinho E,Loewer J,Saran A,Chandra P

更新日期：2002-04-10 00:00:00

abstract：:OmpC, a surface antigen of Salmonella typhi was crystallized after several attempts, using PEG 3350. Well shaped hexagonal crystals were grown from vapor diffusion method using octyl glucoside and C12E9 as detergents. Crystals are sensitive to X-ray and diffract weakly up to 7 A. Porin isoforms, due to the bound lipop...

journal_title：FEBS letters

authors： Arockiasamy A,Krishnaswamy S

更新日期：1999-06-25 00:00:00

abstract：:The insulin-like growth factor binding proteins (IGFBPs) are responsible for regulation of the effects and the bioavailability of the insulin-like growth factors (IGFs). We screened for circulating fragments of human IGFBP-5 in human hemofiltrate. Identification of IGFBP-5 peptides in the fractions of our peptide bank...

journal_title：FEBS letters

authors： Ständker L,Wobst P,Mark S,Forssmann WG

更新日期：1998-12-18 00:00:00

abstract：:The yeast Saccharomyces cerevisiae contains two acetyl-CoA synthetase genes, ACS1 and ACS2. While ACS1 transcription is glucose repressible, ACS2 shows coregulation with structural genes of fatty acid biosynthesis. The ACS2 upstream region contains an ICRE (inositol/choline-responsive element) as an activating sequenc...

journal_title：FEBS letters

authors： Hiesinger M,Wagner C,Schüller HJ

更新日期：1997-09-22 00:00:00

abstract：:Coeliac disease is a chronic enteropathy caused by the ingestion of wheat gliadin and other cereal prolamines derived from rye and barley. In the present work, we investigated the mechanisms underlying altered barrier function properties exerted by gliadin-derived peptides in human Caco-2 intestinal epithelial cells. ...

journal_title：FEBS letters

authors： Sander GR,Cummins AG,Henshall T,Powell BC

更新日期：2005-08-29 00:00:00

abstract：:The mongoose AChR alpha-subunit has been cloned and shown to be highly homologous to other AChR alpha-subunits, with only six differences in amino acid residues at positions that are conserved in animal species that bind alpha-bungarotoxin (alpha-BTX). Four of these six substitutions cluster in the ligand binding site...

journal_title：FEBS letters

authors： Asher O,Jensen BS,Lupu-Meiri M,Oron Y,Fuchs S

更新日期：1998-04-17 00:00:00

abstract：:The present study was focused on the regulation of ecdysteroidogenesis in the Y-organ of Scylla serrata during molting cycle. A strong expression of molt-inhibiting hormone (MIH) and phosphorylation of ERK was predominantly observed in the postmolt and intermolt stages of Y-organs, whereas protein kinase C, steroidoge...

journal_title：FEBS letters

authors： Imayavaramban L,Dhayaparan D,Devaraj H

更新日期：2007-11-13 00:00:00

abstract：:The hirudin-like factor 1 (HLF1) of Hirudo medicinalis belongs to a new class of leech-derived factors. In previous investigations, HLF1 did not exhibit anticoagulatory activities. Here, we describe the analysis of natural and synthetic variants of HLF1 and HLF-Hyb, a yet uncharacterized member of the HLF family. Modi...

journal_title：FEBS letters

authors： Müller C,Lukas P,Böhmert M,Hildebrandt JP

更新日期：2020-03-01 00:00:00

abstract：:Hexaheme nitrite reductases purified to homogeneity from Escherichia coli K-12 and Wolinella succinogenes were studied by low-temperature EPR spectroscopy. In their isolated states, the two enzymes revealed nearly identical EPR spectra when measured at 12 K. Both high-spin and low-spin ferric heme EPR resonances with ...

journal_title：FEBS letters

authors： Liu MC,Liu MY,Payne WJ,Peck HD Jr,Le Gall J,DerVartanian DV

更新日期：1987-06-29 00:00:00

abstract：:Na(+)/H(+) antiporters are ubiquitous membrane proteins and play an important role in cell homeostasis. We amplified a gene encoding a member of the monovalent cation:proton antiporter-2 (CPA2) family (TC 2.A.37) from the Thermus thermophilus genome and expressed it in Escherichia coli. The gene product was identified...

journal_title：FEBS letters

authors： Furrer EM,Ronchetti MF,Verrey F,Pos KM

更新日期：2007-02-06 00:00:00

abstract：:We investigated the effect of hydroxyl substituted chalcone (1a) and some chalcone analogues (1b-d) on isolated rat liver mitochondria to gain new insights into the cytotoxic mechanism of these compounds. We observed an inhibitory effect on phosphorylation and the partial uncoupling of compounds 1a and 1d. Increased r...

journal_title：FEBS letters

authors： Guzy J,Vasková-Kubálková J,Rozmer Z,Fodor K,Mareková M,Poskrobová M,Perjési P

更新日期：2010-02-05 00:00:00

abstract：:Activities of prevalent protein phosphatases decreased by nearly 95% and those of individual protein kinases were differentially reduced at low temperature. Inhibition of phosphatase activity at temperatures below 12 degrees C resulted in marked hyperphosphorylation of a 58-kDa protein (PP58). The temperature threshol...

journal_title：FEBS letters

authors： Monroy AF,Labbé E,Dhindsa RS

更新日期：1997-06-30 00:00:00

abstract：:The malaria parasite has for long been thought to escape host complement attack as a survival strategy. However, it was only recently that complement evasion mechanisms of the parasite were described. Simultaneously, the role of complement in antibody-mediated naturally acquired and vaccine-induced protection against ...

journal_title：FEBS letters

authors： Kiyuka PK,Meri S,Khattab A

更新日期：2020-08-01 00:00:00

abstract：:Several recombinant proteins in inclusion bodies expressed in Escherichia coli have been measured by Fourier transform infrared and solid-state nuclear magnetic resonance spectra to provide the secondary structural characteristics of the proteins from hyperthermophilic archaeon Pyrococcus horikoshii OT3 (hyperthermoph...

journal_title：FEBS letters

authors： Umetsu M,Tsumoto K,Ashish K,Nitta S,Tanaka Y,Adschiri T,Kumagai I

更新日期：2004-01-16 00:00:00

abstract：:Parathyroid hormone (PTH) secretion is stimulated by low extracellular calcium (Ca2+) in association with a reduction in cyosolic Ca2+, indicating that this cell type does not conform to classical models of stimulus-secretion coupling. We used the phorbol ester TPA (12-O-tetradecanoyl phorbol 13-acetate), which direct...

journal_title：FEBS letters

authors： Brown EM,Redgrave J,Thatcher J

更新日期：1984-09-17 00:00:00

abstract：:The expression of rat brain voltage-sensitive Na+ channel mRNAs in Schwann cells was examined using in situ hybridization cytochemistry and RT-PCR. The mRNAs of rat brain Na+ channel subtype II and III, but not subtype I, were detected in cultured Schwann cells from sciatic nerve and in intact sciatic nerve, which con...

journal_title：FEBS letters

authors： Oh Y,Black JA,Waxman SG

更新日期：1994-08-22 00:00:00

abstract：:A novel regulation type, which may be observed as an unusual kinetic 'cooperativity', is predicted for the alpha-keto acid dehydrogenase complexes. The inter-relationship of this regulation with the well-known regulatory effect of enzyme phosphorylation is discussed. ...

journal_title：FEBS letters

authors： Goldstein BN,Selivanov VA

更新日期：1993-03-22 00:00:00

abstract：:Antibodies to a synthetic peptide from the 'amphipathic helix' of the alpha-chain of the nicotinic acetylcholine receptor (nAChR) bound both to detergent-solubilised and membrane-bound nAChR, indicating that this region, suggested as a component of the transmembrane ion channel in one model, is not buried in the membr...

journal_title：FEBS letters

authors： Roth B,Schwendimann B,Hughes GJ,Tzartos SJ,Barkas T

更新日期：1987-08-31 00:00:00

abstract：:We have studied the effects of 'hydrophobic mismatch' between a poly-Leu transmembrane helix (TMH) and the ER membrane using a glycosylation mapping approach. The simplest interpretation of our results is that the lumenal end of the TMH is located deeper in the membrane for both short (negative mismatch) and long (pos...

journal_title：FEBS letters

authors： Monné M,von Heijne G

更新日期：2001-05-11 00:00:00

abstract：:Plasma membrane H(+)-ATPase of the yeast Saccharomyces cerevisiae was isolated and purified in its two forms, the activated A-ATPase from glucose-metabolizing cells, and the basal-level B-ATPase from cells with endogenous metabolism only. Using two-dimensional gel electrophoretic analysis, we showed that both enzyme p...

journal_title：FEBS letters

authors： Lapathitis G,Tanfani F,Kotyk A,Bertoli E

更新日期：2001-09-07 00:00:00

abstract：:Glutamate uptake by rat hepatocytes in primary monolayer culture was found to be mediated by a Na+-independent and by two Na+-dependent transport systems of high and low affinity. Inhibition studies with cysteate and other model amino acids rules out the participation of the neutral amino acid transport systems A, ASC...

journal_title：FEBS letters

authors： Gebhardt R,Mecke D

更新日期：1983-09-19 00:00:00

abstract：:Biochemical, immunohistochemical and molecular biological methods were used to detect fetal myosin heavy chain (MyHC) in the human masseter of elderly and young subjects. Samples from the elderly subjects contained larger amounts of fetal MyHC than those of young adults. Only a very small amount of embryonic MyHC coul...

journal_title：FEBS letters

authors： Monemi M,Eriksson PO,Dubail I,Butler-Browne GS,Thornell LE

更新日期：1996-05-13 00:00:00

abstract：:Cystatins A and C were both shown to inhibit cathepsin B by a two-step mechanism, involving an initial weak interaction followed by a conformational change. Disruption of the major salt bridge anchoring the occluding loop of cathepsin B to the main body of the enzyme by mutation of His110 to Ala converted the binding ...

journal_title：FEBS letters

authors： Pavlova A,Krupa JC,Mort JS,Abrahamson M,Björk I

更新日期：2000-12-29 00:00:00

abstract：:The ability of (S)-alpha-methylproline (alpha-MePro) to stabilise reverse-turn conformations in the peptide hormone bradykinin (BK = Arg1-Pro2-Pro3-Gly4-Phe5-Ser6-Pro7-Phe8-Arg9) has been investigated. Two BK analogues containing alpha-MePro at position 3 or position 7 were synthesised and their conformations in aqueo...

journal_title：FEBS letters

authors： Welsh JH,Zerbe O,von Philipsborn W,Robinson JA

更新日期：1992-02-10 00:00:00

abstract：:We have observed that the extracellular domain of T beta RI and protectin (CD59), an inhibitor of the membrane attack complex of complement, share structural features, a distinct spacing of ten cysteines and a C-terminal 'Cys-box'. Based on these common features and the recently determined NMR-structure of protectin, ...

journal_title：FEBS letters

authors： Jokiranta TS,Tissari J,Teleman O,Meri S

更新日期：1995-11-27 00:00:00