Structure of a G48H mutant of HIV-1 protease explains how glycine-48 replacements produce mutants resistant to inhibitor drugs.

abstract：:We have studied the perfusion of the jejunum and ileum in an isolated rat intestine model with flavonoids and hydroxycinnamates and the influence of glycosylation on the subsequent metabolism. Flavone and flavonol glucosides and their corresponding aglycones are glucuronidated during transfer across the rat jejunum an...

journal_title：FEBS letters

authors： Spencer JP,Chowrimootoo G,Choudhury R,Debnam ES,Srai SK,Rice-Evans C

更新日期：1999-09-17 00:00:00

abstract：:The hepatitis B viral X protein (HBx) is a multifunctional protein that plays a role in the activation of the NF-kappaB signaling pathway. In this study, we demonstrate that HBx up-regulates expression of TANK-binding kinase-1 (TBK1) at the transcriptional level. Increased levels of TBK1 protein then induce the phosph...

journal_title：FEBS letters

authors： Kim HR,Lee SH,Jung G

更新日期：2010-02-05 00:00:00

abstract：:In this work, we examined the antioxidant role of mucin, a typical sialic acid containing high-molecular weight glycoprotein. The function of mucin as a hydroxyl radical (.OH) scavenger was characterized using bovine submaxillary gland mucin (BSM). Non-treated BSM effectively protected DNA from the attack of .OH; howe...

journal_title：FEBS letters

authors： Ogasawara Y,Namai T,Yoshino F,Lee MC,Ishii K

更新日期：2007-05-29 00:00:00

abstract：:Anthrax is a severe bacterial infection that occurs when Bacillus anthracis spores gain access into the body and germinate in macrophages, causing septicemia and toxemia. Anthrax toxin is a binary A-B toxin composed of protective antigen (PA), lethal factor (LF), and edema factor (EF). PA mediates the entry of either ...

journal_title：FEBS letters

authors： Ascenzi P,Visca P,Ippolito G,Spallarossa A,Bolognesi M,Montecucco C

更新日期：2002-11-20 00:00:00

abstract：:Structures and regulations of vertebrate channels responsible for sustained calcium elevations after hormone stimulation are largely unknown. Therefore, the Drosophila photoreceptor channels, trp and trpl, which are assumed to be involved in calcium influx, serve as model system, trpl expressed in Sf9 cells showed spo...

journal_title：FEBS letters

authors： Harteneck C,Obukhov AG,Zobel A,Kalkbrenner F,Schultz G

更新日期：1995-01-30 00:00:00

abstract：:Residues 370-383 (helix C) of the human nerve growth factor receptor (NGF-R) are highly similar to the sequence of the 14 residue wasp toxin, mastoparan. Both regions are predicted to form amphiphilic alpha-helices, as is the amino-terminal region of the third intracytoplasmic loop (i3) of the beta 2-adrenergic recept...

journal_title：FEBS letters

authors： Feinstein DL,Larhammar D

更新日期：1990-10-15 00:00:00

abstract：:To address biophysical principles and lipid interactions that underlie the properties of membrane proteins, modifications that vary the neighbors of tryptophan residues in the highly dynamic transmembrane helix of GW4,20 ALP23 (acetyl-GGAW4 A(LA)6 LAW20 AGA-amide) were examined using deuterium NMR spectroscopy. It was...

journal_title：FEBS letters

authors： McKay MJ,Greathouse DV,Koeppe RE 2nd

更新日期：2020-12-01 00:00:00

abstract：:Type II collagen is the major protein of cartilage and is synthesized as a procollagen in two forms (IIA and IIB), generated by differential splicing of the gene primary transcript. Previous studies have indicated that only type IIB is expressed in differentiated chondrocytes. Here, we examined the effects of bone mor...

journal_title：FEBS letters

authors： Valcourt U,Gouttenoire J,Aubert-Foucher E,Herbage D,Mallein-Gerin F

更新日期：2003-06-19 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：:Cellular homeostasis is linked tightly to mitochondrial functions. Some damage to mitochondrial proteins and nucleic acids can lead to the depolarization of the inner mitochondrial membrane, thereby sensitizing impaired mitochondria for selective elimination by autophagy. Mitochondrial dysfunction is one of the key as...

journal_title：FEBS letters

authors： Tanaka A

更新日期：2010-04-02 00:00:00

abstract：:The assembly of iron-sulfur (Fe/S) clusters in a living cell is mediated by a complex machinery which, in eukaryotes, is localised within mitochondria. Here, we report on a new component of this machinery, the protein Isa2p of the yeast Saccharomyces cerevisiae. The protein shares sequence similarity with yeast Isa1p ...

journal_title：FEBS letters

authors： Pelzer W,Mühlenhoff U,Diekert K,Siegmund K,Kispal G,Lill R

更新日期：2000-07-07 00:00:00

abstract：:Lewy bodies (LBs) are the pathologic hallmark of Parkinson's disease. Recent studies revealed that LBs exhibit several morphologic and molecular similarities to aggresomes. Aggresomes are perinuclear aggregates representing intracellular deposits of misfolded proteins. Recently, valosin-containing protein (VCP) was on...

journal_title：FEBS letters

authors： Kitami MI,Kitami T,Nagahama M,Tagaya M,Hori S,Kakizuka A,Mizuno Y,Hattori N

更新日期：2006-01-23 00:00:00

abstract：:We identified a gene encoding a novel secreted protein in mice, humans, and zebrafish. As the protein of 222 amino acids is similar to Brorin, a secreted BMP antagonist, which is a member of the Chordin family, we named it Brorin-like. Recombinant Brorin-like protein weakly but significantly inhibited the activity of ...

journal_title：FEBS letters

authors： Miwa H,Miyake A,Kouta Y,Shimada A,Yamashita Y,Nakayama Y,Yamauchi H,Konishi M,Itoh N

更新日期：2009-11-19 00:00:00

abstract：:Leishmania major promastigotes are parasites endowed with a plasma membrane electrogenic H+ pump and anionic channels. These systems have been thought to contribute to pH homeostasis of parasites and environmental adaptation by mediating extrusion of protons which are either generated metabolically or result from exog...

journal_title：FEBS letters

authors： Vieira L,Cabantchik ZI

更新日期：1995-03-13 00:00:00

abstract：:In cooperative aggregation of bovine platelets induced by simultaneous addition of PAF and collagen at subthreshold concentrations the following observations were made. (i) Formation of phosphatidic acid and arachidonic acid metabolites, which characterize PAF and collagen alone-induced aggregation, respectively, was ...

journal_title：FEBS letters

authors： Kojima S,Sekiya F,Inada Y,Sato F,Tsukada T,Saito Y

更新日期：1990-07-16 00:00:00

abstract：:The contributions of membrane type-1 matrix metalloproteinase (MT1-MMP) and of the glucose-6-phosphate transporter (G6PT) in sphingosine-1-phosphate (S1P)-mediated Ca(2+) mobilization were assessed in glioblastoma cells. We show that gene silencing of MT1-MMP or G6PT decreased the extent of S1P-induced Ca(2+) mobiliza...

journal_title：FEBS letters

authors： Fortier S,Labelle D,Sina A,Moreau R,Annabi B

更新日期：2008-03-05 00:00:00

abstract：:Cathepsin L is a ubiquitously expressed papain-like cysteine protease involved in the endosomal degradation of proteins and has numerous roles in physiological and pathological processes, such as arthritis, osteoporosis, and cancer. Insight into the specificity of cathepsin L is important for elucidating its physiolog...

journal_title：FEBS letters

authors： Sosnowski P,Turk D

更新日期：2016-04-01 00:00:00

abstract：:The TSH-induced cyclic AMP response was studied using a 3-year-old ovine thyroid cell line TSH-independent for growth: OVNIS 5H. The kinetics of cyclic AMP production was followed both in cell layers and in cell culture media, with or without phosphodiesterase inhibitor. It is noteworthy that following the first wave ...

journal_title：FEBS letters

authors： Fayet G,Aouani A,Hovsépian S

更新日期：1986-01-06 00:00:00

abstract：:Unlike the human blood group Sd(a+) Tamm-Horsfall glycoprotein (THGP), the Sd(a-) one lacks terminal GalNAcbeta1--> residues at the nonreducing ends. The binding properties of this glycoprotein and its asialo product with lectins were characterized by quantitative precipitin (QPA) and precipitin inhibition assays. Amo...

journal_title：FEBS letters

authors： Wu JH,Watkins WM,Chen CP,Song SC,Wu AM

更新日期：1996-04-22 00:00:00

abstract：:The crystal structure of metagenome-derived LC9-RNase H1 was determined. The structure-based mutational analyses indicated that the active site motif of LC9-RNase H1 is altered from DEDD to DEDN. In this motif, the location of the second glutamate residue is moved from αA-helix to β1-strand immediately next to the fir...

journal_title：FEBS letters

authors： Nguyen TN,You DJ,Kanaya E,Koga Y,Kanaya S

更新日期：2013-05-02 00:00:00

abstract：:Treatment of rat thymus cell suspensions with dexamethasone resulted in inhibition of engaged RNA polymerase A, without significant change in free pool activity. Studies with the re-initiation inhibitor, rifamycin AF/0-13, and measurements of numbers of RNA polymerase A molecules and of elongation rates showed that th...

journal_title：FEBS letters

authors： Dembinski TC

更新日期：1984-07-23 00:00:00

abstract：:Phosphatase and tensin homolog deleted on chromosome 10 (PTEN) is known to act as a lipid phosphatase hydrolyzing phosphatidylinositol (PI)(3,4,5)P(3) to PI(4,5)P(2). Since the PI3-kinase product, PI(3,4,5)P(3), is an important second messenger leading to the metabolic action of insulin, PTEN functions as a potent neg...

journal_title：FEBS letters

authors： Ishihara H,Sasaoka T,Kagawa S,Murakami S,Fukui K,Kawagishi Y,Yamazaki K,Sato A,Iwata M,Urakaze M,Ishiki M,Wada T,Yaguchi S,Tsuneki H,Kimura I,Kobayashi M

更新日期：2003-11-20 00:00:00

abstract：:Phenylalanine-specific tRNA from yeast was hydrolysed with cobra venom ribonuclease in the double-stranded regions and the fragments isolated. The 'dissected' molecules with nicks in positions 28 and 41 were reconstructed from supplementary fragments and treated with T-4 RNA ligase. A phosphodiester bond between two f...

journal_title：FEBS letters

authors： Boutorin AS,Vassilenko SK,Baklanov MM,Nechaev YS

更新日期：1984-01-02 00:00:00

abstract：:Prostaglandin F2alpha, platelet-derived growth factor (PDGF) and calcium ionophore A23187 stimulated the rapid (within 25 s) generation of polyunsaturated 1,2-diacylglycerol (DAG) species, in particular 18:0/20:3n-9, 18:0/20:4n-6 and 18:0/20:5n-3, in Swiss 3T3 fibroblasts. This was followed by a second sustained phase...

journal_title：FEBS letters

authors： Pettitt TR,Wakelam MJ

更新日期：1998-05-15 00:00:00

abstract：:There is evidence that CCK-8 may interact with opioids and that both systems are probably implicated in pain modulation. In order to elucidate this relationship we sought to examine factors governing the movement of CCK-8 from the spinal cord into the extracellular space. We report that CCK-8 like immunoreactivity, as...

journal_title：FEBS letters

authors： Rodríguez RE,Sacristán MP

更新日期：1989-07-03 00:00:00

abstract：:A one-electron reductive metabolism of 1,2-dibromoethane (DBE) is described that gives rise to a free radical intermediate, which can be stabilized by a spin trapping agent and detected by electron spin resonance spectroscopy. Using rat liver microsomes or isolated hepatocytes from phenobarbitone pretreated animals, u...

journal_title：FEBS letters

authors： Tomasi A,Albano E,Dianzani MU,Slater TF,Vannini V

更新日期：1983-08-22 00:00:00

abstract：:The anti-ICAM-1 monoclonal antibody F10.2 was conjugated to liposomes to target to cells expressing the cell adhesion molecule ICAM-1. We demonstrate that F10.2 immunoliposomes bind to human bronchial epithelial cells (BEAS-2B) and human umbilical vein endothelial cells (HUVEC) in a specific, dose- and time-dependent ...

journal_title：FEBS letters

authors： Bloemen PG,Henricks PA,van Bloois L,van den Tweel MC,Bloem AC,Nijkamp FP,Crommelin DJ,Storm G

更新日期：1995-01-03 00:00:00

abstract：:The pl6INK4a tumor suppressor negatively regulates progression through the G1 phase of the mammalian cell cycle. To mimic the downmodulation of p16INK4a commonly seen in cancer, we designed and characterized a hammerhead ribozyme against exon E1alpha of the murine pl6INK4a transcript. Stable expression of the ribozyme...

journal_title：FEBS letters

authors： Nylandsted J,Rohde M,Bartek J,Strauss M

更新日期：1998-09-25 00:00:00

abstract：:Heterotrimeric G proteins were purified from bovine brain by immunoaffinity chromatography on immobilized anti G protein monoclonal antibody 3C2. Release of betagamma subunits was effectuated by exposure of immobilized trimeric G proteins to MgAlF4. The resultant betagamma subunits were pure and biologically active. F...

journal_title：FEBS letters

authors： Rehm A,Ploegh HL

更新日期：1997-02-03 00:00:00

abstract：:MiR-140 is a microRNA specially involved in chondrogenesis and osteoarthritis pathogenesis. However, its transcriptional regulation and target genes in cartilage development are not fully understood. Here we detected that miR-140 was uniquely expressed in chondrocyte and suppressed by Wnt/β-catenin signalling. The miR...

journal_title：FEBS letters

authors： Yang J,Qin S,Yi C,Ma G,Zhu H,Zhou W,Xiong Y,Zhu X,Wang Y,He L,Guo X

更新日期：2011-10-03 00:00:00