abstract：:Duchenne and Becker muscular dystrophy (DMD/BMD) are X-linked muscular dystrophies. The isolation of the defective gene in DMD/BMD has led to a better understanding of the disease process and has promoted studies regarding the application of molecular therapy. The purpose of this review is to present the progress made...

journal_title：IUBMB life

authors： Matsuo M

更新日期：2002-03-01 00:00:00

abstract：:In protein and RNA macromolecules, only a limited number of different side-chain chemical groups are available to function as catalysts. The myriad of enzyme-catalyzed reactions results from the ability of most of these groups to function either as nucleophilic, electrophilic, or general acid-base catalysts, and the k...

journal_title：IUBMB life

authors： Harris TK,Turner GJ

更新日期：2002-02-01 00:00:00

abstract：:To further understand the role of the three conserved Val residues in insulin, B12Val, B18Val, and A3Val, five insulin mutants-[A3Ser]insulin, [B12Thr]insulin, (desB30)[B12Ser]insulin, [B18Thr] insulin, and [B18Leu]insulin--were obtained by means of site-directed mutagenesis and their receptor-binding activities as we...

journal_title：IUBMB life

authors： Guo ZY,Tang YH,Zhang Z,Feng YM

更新日期：2001-12-01 00:00:00

abstract：:Uncoupling proteins (UCPs) are regulated H+ transporters and a subfamily of the mitochondrial carrier family. Whereas UCP1 in brown adipose tissue has a well-defined role in thermogenesis, the roles of other UCPs are still tentative, such as in control of immune response, oxygen radical formation, and insulin secretio...

journal_title：IUBMB life

authors： Klingenberg M

更新日期：2001-09-01 00:00:00

abstract：:The multifaceted relationship between mitochondria and the rest of the cell is reviewed in the context of myocardial ischemia. Paradoxically, mitochondria can exacerbate the ischemic damage, especially at the onset of reperfusion. Indeed, the recovery of oxidative phosphorylation in the presence of an excessive energy...

journal_title：IUBMB life

authors： Di Lisa F

更新日期：2001-09-01 00:00:00

abstract：:Increasing evidence suggests a role for intracellular reactive oxygen species (ROS) as mediators of normal and pathological signal transduction pathways. In particular, a growing list of recent reports have demonstrated a rapid and significant increases in intracellular ROS following growth factor or cytokine stimulat...

journal_title：IUBMB life

authors： Finkel T

更新日期：2001-07-01 00:00:00

abstract：:Anthracyclines are a class of antitumor drugs widely used for the treatment of a variety of malignancy, including leukemias, lymphomas, sarcomas, and carcinomas. Different mechanisms have been proposed for anthracycline antitumor effects including free-radical generation, DNA intercalation/binding, activation of signa...

journal_title：IUBMB life

authors： Mordente A,Meucci E,Martorana GE,Giardina B,Minotti G

更新日期：2001-07-01 00:00:00

abstract：:Myosin light chain kinase (MLCK) is a regulatory protein for smooth muscle contraction, which acts by phosphorylating 20-kDa myosin light chain (MLC20) to activate the myosin ATPase activity. Although this mode of action is well-established, there are numerous reports of smooth muscle contraction that is not associate...

journal_title：IUBMB life

authors： Gao Y,Ye LH,Kishi H,Okagaki T,Samizo K,Nakamura A,Kohama K

更新日期：2001-06-01 00:00:00

abstract：:The immunosuppressant cyclosporin A (CsA)-sensitive nuclear factor of activated T cells 1 (NFAT1) has been known to be a transcriptional regulator of cytokine and viral genes during the immune response. By analyses of serial deletion, mutation, and heterologous promoter assay, we report here that the CsA-sensitive NFA...

journal_title：IUBMB life

authors： Lee JH,Rho HM

更新日期：2001-04-01 00:00:00

abstract：:The expression of the cytM gene, which encodes cytochrome cM in Synechocystis sp. PCC 6803, is induced under stress conditions such as low temperature. Results of spectrophotometric studies revealed that cytochrome cM was oxidized by light absorbed by photosystem I in cells that had acclimatized to a low temperature. ...

journal_title：IUBMB life

authors： Shuvalov VA,Allakhverdiev SI,Sakamoto A,Malakhov M,Murata N

更新日期：2001-02-01 00:00:00

abstract：:Iron presents us with a paradox. Without it, cells simply cannot survive because iron is an essential cofactor for many enzymes in critical biochemical pathways. However, when iron is present in excess, it can be highly cytotoxic due to its propensity to catalyze the formation of reactive oxygen radicals. To cater for...

journal_title：IUBMB life

authors： Anderson GJ

更新日期：2001-01-01 00:00:00

abstract：:Our results demonstrate that open reading frame (ORF) YHR076w on chromosome VIII of Saccharomyces cerevisiae that was previously described as a hypothetical gene is expressed. This ORF is transcribed as an mRNA of approximately 1,100 nucleotides. A 41.2-kDa polypeptide and three others predicted to be modified forms o...

journal_title：IUBMB life

authors： Ramos CW,Güldener U,Klein S,Hegemann JH,Gonzalez S,Rodríguez-Medina JR

更新日期：2000-12-01 00:00:00

abstract：:The best known NADPH oxidase is that of phagocytes-neutrophils and monocytes. In these cells, the enzyme manufactures large quantities of O2- and other reactive oxidants that are used for the purpose of killing invading microorganisms. Recent studies, however, have suggested that a number of other tissues contain NADP...

journal_title：IUBMB life

authors： Babior BM

更新日期：2000-10-01 00:00:00

abstract：:Combining two analytical techniques, HPLC and liquid secondary ion mass spectrometry, the orientation of liposomal membrane-bound melittin was analyzed through its trypsin-digested products. We found that trypsin can access all proteolytic sites of the membrane-bound melittin when the liposomes have no transmembrane p...

journal_title：IUBMB life

authors： Niu W,Wu Y,Sui SF

更新日期：2000-09-01 00:00:00

abstract：:In Streptomyces fradiae, calcium ions induce alterations in intensity and specificity of the secondary metabolism and stimulate sporulation. Using in vivo labeling, we demonstrate that in S. fradiae phosphorylation of some proteins are also influenced by Ca2+ added exogenously. Calcium ions at physiological concentrat...

journal_title：IUBMB life

authors： Elizarov SM,Mironov VA,Danilenko VN

更新日期：2000-08-01 00:00:00

abstract：:Human ecto-ATPase (ecto-nucleoside triphosphate diphosphohydrolase 2 [eNTPDase2], also known as CD39L1) has been expressed and characterized in COS cells. It exhibits some unusual enzymology that is similar to a few members of this class of proteins but different from the majority of the family members. Hydrolysis of ...

journal_title：IUBMB life

authors： Hicks-Berger CA,Kirley TL

更新日期：2000-07-01 00:00:00

abstract：:Retinitis pigmentosa comprises a large and exceptionally heterogeneous group of hereditary disorders of the retina. As a result of an extensive investigation around the world, primary genetic lesions have been described in many genes. Some of these genes encode enzymes that are involved in the signal transduction path...

journal_title：IUBMB life

authors： Shastry BS

更新日期：2000-06-01 00:00:00

abstract：:Acid fibroblast growth factor (aFGF) binds to its cell-surface receptors in a heparin-dependent manner. In an attempt to define the aFGF recognition site on fibroblast growth factor receptor 1 (FGFR1), we developed a screening strategy for identifying FGF ligands that bind to the receptor-binding region of FGF. To ret...

journal_title：IUBMB life

authors： Fan H,Liu Y,Zhou H,Wang L,Li W,Guo L,Roeske RW

更新日期：2000-06-01 00:00:00

abstract：:Pancreatic islet beta-cells are poised to generate metabolic messengers in the mitochondria that link glucose metabolism to insulin exocytosis. This is accomplished through the tight coupling of glycolysis to mitochondrial activation. The messenger molecules ATP and glutamate are produced after the metabolism of glyco...

journal_title：IUBMB life

authors： Ishihara H,Wollheim CB

更新日期：2000-05-01 00:00:00

abstract：:The effect of streptozotocin-induced diabetes on cholinesterases activities was studied in the retina and, for comparison, in other nervous and nonnervous tissues. Streptozotocin diabetes did not affect acetylcholinesterase activity in the retina but increased its activity in the cerebral cortex (100%) and in serum (5...

journal_title：IUBMB life

authors： Sánchez-Chávez G,Salceda R

更新日期：2000-04-01 00:00:00

abstract：:This review describes recent progress in the field of fibroblast growth factor receptors (FGFRs) with an emphasis on the role of FGFR mutants in skeletal malformations. This family of four receptors contains the most frequent germline mutations in humans. More than 75 mutations have been recorded, which account for mo...

journal_title：IUBMB life

authors： Kannan K,Givol D

更新日期：2000-03-01 00:00:00

abstract：:Kaposi's sarcoma-associated herpesvirus (KSHV or HHV-8) is linked to the etiopathogenesis of Kaposi's sarcoma, a plasma-blastic variant of Castleman's disease and primary effusion lymphoma. KSHV is related to a number of non-human primate viruses. Only a limited number of KSHV proteins are expressed in tumor cells. He...

journal_title：IUBMB life

authors： Sharp TV,Boshoff C

更新日期：2000-02-01 00:00:00

abstract：:In this study, two different epitope tags (HA, c-myc) were introduced near the N terminus of the yeast PMA1 H(+)-ATPase. The resulting proteins were indistinguishable from the wild-type ATPase in their ability to travel through the secretory pathway, as judged by quantitative immunoblotting of isolated secretory vesic...

journal_title：IUBMB life

authors： dos Santos CF,DeWitt ND,Gupta SS,Allen KE,Slayman CW

更新日期：2000-02-01 00:00:00

abstract：:We previously found a novel glycosylphosphatidylinositol (GPI)-anchored glycoprotein designated GPI-80 that modulates complement receptor 3 integrin-dependent adhesion and in vitro transendothelial migration of neutrophils. In this study, we show that antibody-mediated cross-linking of GPI-80 led to rapid tyrosine pho...

journal_title：IUBMB life

authors： Yu Y,Araki Y,Sendo F

更新日期：2000-01-01 00:00:00

abstract：:Alkyl-dihydroxyacetonephosphate synthase (alkyl-DHAP synthase) is a peroxisomal enzyme that plays a key role in ether phospholipid biosynthesis. To determine the turnover of alkyl-DHAP synthase in several peroxisomal disorders, pulse-chase experiments were performed. In control fibroblasts, mature alkyl-DHAP synthase ...

journal_title：IUBMB life

authors： Biermann J,Gootjes J,Wanders RJ,van den Bosch H

更新日期：1999-12-01 00:00:00

abstract：:Women with breast cancer show altered blood glucose compartmentation compared with healthy women, with lower concentrations in plasma and similar concentrations in blood cells. The goal of this paper was to study whether this pattern was the result of changes in the erythrocyte glucose transporter and, if so, to asses...

journal_title：IUBMB life

authors： Crespí C,Quevedo S,Roca P,Palou A

更新日期：1999-11-01 00:00:00

abstract：:To establish possible cancerous aggressiveness between the metabolism of variously labeled [14C]glucose in the human breast invasive ductal carcinoma (IDC) tissues, we measured the rates of 14CO2 production from those tissues by using radiorespirometry, expressing the results as initial velocity (V) in nanomoles of 14...

journal_title：IUBMB life

authors： Yan SH,Wallon J,Mayaudon J

更新日期：1999-10-01 00:00:00

abstract：:The acidic phospholipase A2 isoform from the spitting cobra Naja mossambica mossambica is activated irreversibly by treatment with a molar equivalent of oleoyl imidazolide. The kinetics of the chemical modification of the enzyme can also be monitored by measuring the large reduction of tryptophan fluorescence, which i...

journal_title：IUBMB life

authors： Ahmed T,Kelly SM,Price NC,Lawrence AJ

更新日期：1999-09-01 00:00:00

abstract：:The sodA gene coding for manganese superoxide dismutase (Mn-SOD) from the marine microorganism Vibrio parahaemolyticus was cloned, sequenced, and overexpressed in Escherichia coli by use of the pET20b (+) expression vector. The full-length gene consisted of a 588-bp open reading frame and encoded a polypeptide of 196 ...

journal_title：IUBMB life

authors： Shyu YC,Lin FP

更新日期：1999-09-01 00:00:00

abstract：:Recent structural studies of proteins mediating membrane fusion reveal intriguing similarities between diverse viral and mammalian systems. Particularly striking is the close similarity between the transmembrane envelope glycoproteins from the retrovirus HTLV-1 and the filovirus Ebola. These similarities suggest simil...

journal_title：IUBMB life

authors： Poumbourios P,Center RJ,Wilson KA,Kemp BE,Kobe B

更新日期：1999-08-01 00:00:00

abstract：:To explore the oxygen response regulators involved in thiol peroxidase gene (tpx) expression in Escherichia coli, we constructed a single-copy tpx-lacZ operon fusion and monitored tpx-lacZ expression in various genetic backgrounds. Expression of the tpx-lacZ fusion was increased 4-fold by aerobic growth. Anaerobic exp...

journal_title：IUBMB life

authors： Kim SJ,Han YH,Kim IH,Kim HK

更新日期：1999-08-01 00:00:00

abstract：:Although proteins and nucleic acids consist of different chemical components, proteins can mimic structures and possibly also functions of nucleic acids. Recently, structural mimicry was observed between two elongation factors in bacterial protein biosynthesis leading to the introduction of the concept of macromolecul...

journal_title：IUBMB life

authors： Pedersen GN,Nyborg J,Clark BF

更新日期：1999-07-01 00:00:00

abstract：:In tsRSV-infected NRK (tsNRK) cells, pp60(v-src) reactivation by temperature-shift from a nonpermissive temperature, 39 C, to a permissive one, 32 degrees C, induced the production of inositol phosphates (IPt) and phosphatidylethanol (PEt). This was accompanied by an increase in membrane-associated protein kinase C (P...

journal_title：IUBMB life

authors： Kim BY,Kim JH,Han YJ,Ahn SC,Kang DO,Oh WK,Ko HR,Lee HS,Mheen TI,Ahn JS

更新日期：1999-07-01 00:00:00