Prokaryotic 20 beta-hydroxysteroid dehydrogenase is an enzyme of the 'short-chain, non-metalloenzyme' alcohol dehydrogenase type.

abstract：:Di(1,N6-ethenoadenosine)5',5'''-P1,P4-tetraphosphate, epsilon-(Ap4A), a fluorescent analog of Ap4A has been synthesized by reaction of 2-chloroacetaldehyde with Ap4A. At neutral pH this Ap4A analog presents characteristics maxima at 265 and 274 nm, shoulders at ca 260 and 310 nm and moderate fluorescence (lambda exc 3...

journal_title：FEBS letters

authors： Rotilán P,Ramos A,Pintor J,Torres M,Miras-Portugal MT

更新日期：1991-03-25 00:00:00

abstract：:Kaposi's sarcoma-associated herpesvirus (KSHV) ORF57 plays a pivotal role in mediating the nuclear export of KSHV intronless transcripts. We demonstrate that ORF57 localises and dynamically trafficks through the nucleolus. To assess if nucleolar shuttling of ORF57 is important for the export of intronless viral mRNA, ...

journal_title：FEBS letters

authors： Boyne JR,Whitehouse A

更新日期：2009-11-19 00:00:00

abstract：:The degradation of type IX collagen, a minor collagen in cartilage, was examined by treatment with three different types of matrix metalloproteinases (MMPs) purified from the culture medium of rheumatoid synovial cells. Neither MMP-1 (collagenase) nor MMP-2 (so-called 'gelatinase') could digest type IX collagen, but M...

journal_title：FEBS letters

authors： Okada Y,Konomi H,Yada T,Kimata K,Nagase H

更新日期：1989-02-27 00:00:00

abstract：:Genetic factors seem to play a significant role in susceptibility to systemic lupus erythematosus (SLE). We previously described the amino acid polymorphism (Val14Met) within the IFN-gamma receptor 1 (IFN-gammaRI), and that the frequency of the Metl4 allele in SLE patients was significantly higher than that of the hea...

journal_title：FEBS letters

authors： Nakashima H,Inoue H,Akahoshi M,Tanaka Y,Yamaoka K,Ogami E,Nagano S,Arinobu Y,Niiro H,Otsuka T,Niho Y

更新日期：1999-06-18 00:00:00

abstract：:The operation of the human red cell glucose transporter has been studied at normal and high hydrostatic pressure to identify the step(s) which involve a volume change. Pressure inhibited zero-trans and equilibrium exchange influx to similar extents, by decreasing the Vmax but not significantly changing the Km. The Bma...

journal_title：FEBS letters

authors： Thorne SD,Hall AC,Lowe AG

更新日期：1992-04-27 00:00:00

abstract：:The replacement of O2 with CO was studied on cobalt-iron hemoglobin hybrids. Both proto- and mesocobalt hemes were used for the reconstitution. In the oxy quaternary conformation no difference is observed between alpha- and beta-subunits when only proto hemes are present in the hybrid (k4 = 30 s-1, k'4/l'4 = 2.5). If ...

journal_title：FEBS letters

authors： Oertle M,Winterhalter KH,Di Iorio EE

更新日期：1983-03-07 00:00:00

abstract：:Stable liposomes were rendered pH-sensitive by complexation to a polymer that undergoes marked temperature- and pH-dependent water solubility changes. The N-isopropylacrylamide-methacrylic acid copolymer was prepared with or without octadecyl acrylate. At pH below the phase transition of the polymer, egg phosphatidylc...

journal_title：FEBS letters

authors： Meyer O,Papahadjopoulos D,Leroux JC

更新日期：1998-01-02 00:00:00

abstract：:Pathway analysis methods are frequently applied to cancer gene expression data to identify dysregulated pathways. These methods often infer pathway activity based on the expression of genes belonging to a given pathway, even though the proteins ultimately determine the activity of a given pathway. Furthermore, the ass...

journal_title：FEBS letters

authors： Szalai B,Saez-Rodriguez J

更新日期：2020-12-01 00:00:00

abstract：:The covalently closed circular DNA (cccDNA) of hepatitis B virus (HBV) is a viral center molecule for HBV infection and persistence. However, the cellular restriction factors of HBV cccDNA are not well understood. Here, we show that TGF-β can induce nuclear viral cccDNA degradation and hypermutation via activation-ind...

journal_title：FEBS letters

authors： Qiao Y,Han X,Guan G,Wu N,Sun J,Pak V,Liang G

更新日期：2016-02-01 00:00:00

abstract：:Vacuolar tandem-pore channels could not be analysed in Xenopus oocytes so far, due to misguided translocation. Owing to the conservation of their pore regions, we were able to prepare functional pore-chimeras between the plasma membrane localised TPK4 and vacuolar TPKs. Thereby, we found evidence that TPK2, TPK3 and T...

journal_title：FEBS letters

authors： Marcel D,Müller T,Hedrich R,Geiger D

更新日期：2010-06-03 00:00:00

abstract：:Farnesoic acid is a signaling molecule that inhibits the transition from budding yeast to filament formation in Candida albicans, but the molecular mechanism regulated by this substance is unknown. In this study, we analyzed the function of CaPHO81, which is induced by farnesoic acid. The pho81Δ mutant cells existed e...

journal_title：FEBS letters

authors： Chung SC,Kim TI,Ahn CH,Shin J,Oh KB

更新日期：2010-11-19 00:00:00

abstract：:We have investigated the importance of the degree of sialylation when an acute phase glycoprotein, alpha 1-proteinase inhibitor (alpha 1-Pi), was analysed both by affinity chromatography on concanavalin A (Con A)-Sepharose and by crossed immuno-affinoelectrophoresis (CIAE) using Con A in the first dimension. Human alp...

journal_title：FEBS letters

authors： Mallet B,Franc JL,Zattara MC

更新日期：1990-03-12 00:00:00

abstract：:The redox potentials (E(composite function')) of P700 in intact and diethyl ether-treated thylakoid membranes as well as native photosystem (PS) I particles from spinach and Thermosynechococcus elongatus have been measured by a spectroelectrochemistry with an error range of +/-2-3 mV. Stepwise removal of antenna pigme...

journal_title：FEBS letters

authors： Zhang Y,Nakamura A,Kuroiwa Y,Kato Y,Watanabe T

更新日期：2008-04-02 00:00:00

abstract：:The nitration of tyrosine residues in protein occurs through the action of reactive oxygen and nitrogen species and is considered a marker of oxidative stress under pathological conditions. The most active nitrating species so far identified is peroxynitrite, the product of the reaction between nitric oxide and supero...

journal_title：FEBS letters

authors： Mallozzi C,Di Stasi AM,Minetti M

更新日期：2001-08-17 00:00:00

abstract：:Vav functions as a specific GDP/GTP nucleotide exchange factor which is regulated by tyrosine phosphorylation in the hematopoietic system. Loss of the amino-terminus sequences of Vav was sufficient to control its transforming potential and its function in T cells. We report here the identification of the hematopoietic...

journal_title：FEBS letters

authors： Groysman M,Russek CS,Katzav S

更新日期：2000-02-04 00:00:00

abstract：:The use of oryzacystatins I and II, two cysteine proteinase inhibitors naturally produced in rice grains, represents an attractive way for the control of Coleoptera insect pests. The present study was done to analyze the inhibitory effect of recombinant oryzacystatins produced in Escherichia coli as fusion proteins ag...

journal_title：FEBS letters

authors： Michaud D,Nguyen-Quoc B,Yelle S

更新日期：1993-09-27 00:00:00

abstract：:The amounts of RNA polymerase I (Pol I) and basal rDNA transcription factors were determined in yeast whole cell extracts. A 17-fold excess of Pol I was found compared to the Pol I-specific initiation factors upstream activating factor (UAF) and core factor (CF) which underlines that both initiation factors interact w...

journal_title：FEBS letters

authors： Bier M,Fath S,Tschochner H

更新日期：2004-04-23 00:00:00

abstract：:The multidrug resistance protein (MRP) is an ATP-dependent transport protein for organic anions, as well as neutral or positively charged anticancer agents. In this study we report that dinitrophenyl-S-glutathione increases ATPase activity in plasma membrane vesicles prepared from the MRP-overexpressing cell line GLC4...

journal_title：FEBS letters

authors： Hooijberg JH,Broxterman HJ,Heijn M,Fles DL,Lankelma J,Pinedo HM

更新日期：1997-08-18 00:00:00

abstract：:1,2-Didecanoylglycerol (diC10) is taken up by human platelets and sequentially converted to 1,2-didecanoylphosphatidic acid (PA10) and 1,2-didecanoylphosphatidylinositol (PI10). Agents that increase cyclic AMP in platelets, such as prostacyclin and forskolin, sequentially convert diC10 to PA10 and PI10. They decrease ...

journal_title：FEBS letters

authors： Lapetina EG

更新日期：1986-01-20 00:00:00

abstract：:The cytosolic NADP(+)-dependent methylenetetrahydrofolate dehydrogenase-methenyltetrahydrofolate cyclohydrolase-formyltetrahydrofolate synthetase is ubiquitously expressed in all mouse tissues and cell lines examined. Northern analyses of the RNA indicated that there is an extensive variation in the levels of mRNA in ...

journal_title：FEBS letters

authors： Peri KG,MacKenzie RE

更新日期：1991-12-02 00:00:00

abstract：:The primary structure of a new sarafotoxin, SRTX-d, from the venom of Atractaspis engaddensis is described. SRTX-d differs from SRTX-b in two substitutions: Ile19 instead of Val and Thr2 instead of Ser. The toxicity of SRTX-d and its vasoconstriction potency are very low in comparison to SRTX-a and SRTX-b, whereas its...

journal_title：FEBS letters

authors： Bdolah A,Wollberg Z,Fleminger G,Kochva E

更新日期：1989-10-09 00:00:00

abstract：:Random sequences of 120-130 amino acid residues were inserted into a surface loop region of Escherichia coli RNase HI. This library was screened and about 10% of the clones were found to retain RNase H activity. Subsequent random mutagenesis led to an increase in RNase H activity and solubility of the protein. The ins...

journal_title：FEBS letters

authors： Doi N,Itaya M,Yomo T,Tokura S,Yanagawa H

更新日期：1997-02-03 00:00:00

abstract：:It is 40 years since cancer growth was correlated with neovascularisation. Anti-angiogenic drugs remain at the forefront of cancer investigations but progress has been disappointing and unexpected toxicities are emerging. Gap junction channels are implicated in lesion spread following injury, with channel blockers sho...

journal_title：FEBS letters

authors： Zhang J,O'Carroll SJ,Henare K,Ching LM,Ormonde S,Nicholson LF,Danesh-Meyer HV,Green CR

更新日期：2014-04-17 00:00:00

abstract：:We show here that the genome of F9 teratocarcinoma cells growing in culture is heavily methylated but undergoes massive demethylation in tumors derived by subcutaneous injection of the cells. This demethylation occurs primarily in single copy gene sequences. As a result imprinted genes acquire their characteristic mon...

journal_title：FEBS letters

authors： Yeivin A,Levine A,Razin A

更新日期：1996-10-14 00:00:00

abstract：:Acute myeloid leukemia (AML) associated translocations often cause gene fusions that encode oncofusion proteins. Although many of the breakpoints involved in chromosomal translocations have been cloned, in most cases the role of the chimeric proteins in tumorigenesis is not elucidated. Here we will discuss the fusion ...

journal_title：FEBS letters

authors： Martens JH,Stunnenberg HG

更新日期：2010-06-18 00:00:00

abstract：:The main immunogenic region (MIR) of the acetylcholine receptor (AChR) is the target for the majority of high-affinity autoantibodies produced in myasthenia gravis patients. Some monoclonal antibodies (mAbs) to the MIR bind specifically, but with low affinity, to synthetic AChR alpha subunit peptides with the sequence...

journal_title：FEBS letters

authors： Saedi MS,Anand R,Conroy WG,Lindstrom J

更新日期：1990-07-02 00:00:00

abstract：:Sulfated glycoprotein 2 (SGP-2) mRNA progressively increased in the ventral prostate of the aging rat, reaching, at 24 months, 4-fold higher than at 3 months. Ornithine decarboxylase (ODC) mRNA peaked at 6 months (4-fold increase), and at 12 and 24 months was maintained at higher levels than at 3 months. ODC enzymatic...

journal_title：FEBS letters

authors： Bettuzzi S,Strocchi P,Marinelli M,Astancolle S,Davalli P,Corti A

更新日期：1994-07-18 00:00:00

abstract：:Barley thioredoxin h isozymes 1 (HvTrxh1) and barley thioredoxin h isozymes 2 (HvTrxh2) show distinct spatiotemporal distribution in germinating seeds. Using a novel approach involving measurement of bidirectional electron transfer rates between Escherichia coli thioredoxin, which exhibits redox-dependent fluorescence...

journal_title：FEBS letters

authors： Maeda K,Hägglund P,Björnberg O,Winther JR,Svensson B

更新日期：2010-08-04 00:00:00

abstract：:Gabapentin (GBP) is a gamma-aminobutyric acid analog effective in the treatment of seizures. A high-affinity interaction between GBP and the alpha(2)delta subunit of the voltage-gated Ca(2+) channels has been documented. In this report, we examined the effects of the chronic treatment with GBP on neuronal recombinant ...

journal_title：FEBS letters

authors： Kang MG,Felix R,Campbell KP

更新日期：2002-09-25 00:00:00

abstract：:We have found that SV40 infection of CV1 cells induces the synthesis of a 72 kDa protein that upon molecular cloning was shown to be the product of the hsc70 gene. The above gene product was found to be mainly virus inducible, in contrast to the hsp70 gene product which was mainly heat inducible. The two genes were fo...

journal_title：FEBS letters

authors： Sainis I,Angelidis C,Pagoulatos G,Lazaridis I

更新日期：1994-12-05 00:00:00