Nucleotide binding properties of a P-glycoprotein homologue from Plasmodium falciparum.

abstract：:We have previously provided evidence for a pathway in Plasmodium falciparum-infected erythrocytes, coined the parasitophorous duct pathway, which provides serum (macro)molecules direct access to intraerythrocytic parasites . The present study addresses the purity of the fluorescent macromolecules used to define the du...

journal_title：Molecular and biochemical parasitology

authors： Goodyer ID,Pouvelle B,Schneider TG,Trelka DP,Taraschi TF

更新日期：1997-07-01 00:00:00

abstract：:This study further explores the effects of hypoxia and acute osmotic stress on intermediary metabolism of Leishmania major and Leishmania donovani. Late log phase promastigotes were washed and incubated with glucose as the sole exogenous carbon source, and rates of glucose consumption and product formation were measur...

journal_title：Molecular and biochemical parasitology

authors： Walsh MJ,Blum JJ

更新日期：1992-02-01 00:00:00

abstract：:In trypanosomatids, removal of hydrogen peroxide and other aryl and alkyl peroxides is achieved by the NADPH-dependent trypanothione peroxidase system, whose components are trypanothione reductase (TRYR), trypanothione, tryparedoxin (TRYX) and tryparedoxin peroxidase (TRYP). Here, we report the cloning of a multi-copy...

journal_title：Molecular and biochemical parasitology

authors： Tetaud E,Giroud C,Prescott AR,Parkin DW,Baltz D,Biteau N,Baltz T,Fairlamb AH

更新日期：2001-09-03 00:00:00

abstract：:Leucine aminopeptidases (LAP; EC 3.4.11.1) are a group of metalloexopeptidases, which catalyze the sequential removal of leucine amino acids from the N-termini of the polypeptides or proteins. In this study, we identified two novel genes that encode LAPs of Clonorchis sinensis (CsLAP1 and CsLAP2) and characterized the...

journal_title：Molecular and biochemical parasitology

authors： Kang JM,Ju HL,Ju JW,Sohn WM,Kim TS,Bahk YY,Hong SJ,Na BK

更新日期：2012-03-01 00:00:00

abstract：:In silico analyses of Leishmania spp. genome data are a powerful resource to improve the understanding of these pathogens' biology. Trypanosomatids such as Leishmania spp. have their protein-coding genes grouped in long polycistronic units of functionally unrelated genes. The control of gene expression happens by a va...

journal_title：Molecular and biochemical parasitology

authors： Vasconcelos EJ,Terrão MC,Ruiz JC,Vêncio RZ,Cruz AK

更新日期：2012-06-01 00:00:00

abstract：:We have generated 2771 expressed sequence tags (ESTs) from two cDNA libraries of Trypanosoma cruzi CL-Brener. The libraries were constructed from trypomastigote and amastigotes, using a spliced leader primer to synthesize the cDNA second strand, thus selecting for full-length cDNAs. Since the libraries were not normal...

journal_title：Molecular and biochemical parasitology

authors： Agüero F,Abdellah KB,Tekiel V,Sánchez DO,González A

更新日期：2004-08-01 00:00:00

abstract：:The apicoplast is a highly specialized organelle that mediates required functions in the growth and replication of apicomplexan parasites. Despite structural conservation of the apicoplast among different parasite genera and species, there are also critical differences in the metabolic requirements of different parasi...

journal_title：Molecular and biochemical parasitology

authors： Caballero MC,Pedroni MJ,Palmer GH,Suarez CE,Davitt C,Lau AO

更新日期：2012-02-01 00:00:00

abstract：:The protozoan parasite Trypanosoma brucei relies on trans-splicing to process its mRNAs. A novel nuclear serine/arginine (SR)-rich trypanosomal protein (TSR1) was characterized which contains two RNA recognition motifs. The TSR1 protein appears to be homologous to RNA-binding SR proteins of the cis-splicing machinery ...

journal_title：Molecular and biochemical parasitology

authors： Ismaïli N,Pérez-Morga D,Walsh P,Mayeda A,Pays A,Tebabi P,Krainer AR,Pays E

更新日期：1999-07-30 00:00:00

abstract：:The smallest chromosome (230 kb) of the HU3 stock of Leishmania donovani was purified from an orthogonal field alternation (OFAGE) gel, digested with PstI and cloned into the plasmid pUC13. When used to probe Southern blots of OFAGE gels, the cloned sequences recognised one or more large chromosomes in all L. donovani...

journal_title：Molecular and biochemical parasitology

authors： Bishop RP

更新日期：1990-01-01 00:00:00

abstract：:The aspartic protease cathepsin D (Clan AA, Family A1) is expressed in the schistosome gut where it plays an apical role in the digestion of hemoglobin released from ingested erythrocytes. In this report, RNA interference approaches were employed to investigate the effects of knockdown of schistosome cathepsin D. Cult...

journal_title：Molecular and biochemical parasitology

authors： Morales ME,Rinaldi G,Gobert GN,Kines KJ,Tort JF,Brindley PJ

更新日期：2008-02-01 00:00:00

abstract：:The origin of membraneous structures in the cytoplasm of human erythrocytes infected with the malaria parasite, Plasmodium falciparum, was determined by confocal fluorescence imaging microscopy. When infectious merozoites invaded erythrocytes labeled with the fluorescent, lipophilic, non-exchangeable molecules DiIC16 ...

journal_title：Molecular and biochemical parasitology

authors： Pouvelle B,Gormley JA,Taraschi TF

更新日期：1994-07-01 00:00:00

abstract：:Gene expression and its regulation was studied in the rat tapeworm, Hymenolepis diminuta, during strobilization. RNAs extracted from the different developmental stages of the parasite were translated in vitro in a rabbit reticulocyte lysate system. Two-dimensional patterns of the translational products were compared w...

journal_title：Molecular and biochemical parasitology

authors： Siddiqui AA,Karcz SR,Podesta RB

更新日期：1987-08-01 00:00:00

abstract：:During the replicative cycle of many double-stranded RNA viruses, transcription of particles with a double-stranded RNA genome alternates with replication of particles containing a single-stranded genome. In virions infecting some strains of Leishmania guyanensis the putative transcriptase and replicase activities of ...

journal_title：Molecular and biochemical parasitology

authors： Weeks RS,Patterson JL,Stuart K,Widmer G

更新日期：1992-06-01 00:00:00

abstract：:Two NAD(H)-dependent malate dehydrogenase (MDH) isoenzymes were detected in Phytomonas isolated from the lactiferous tubes of Euphorbia characias. The total specific activity in crude extracts using oxaloacetate as substrate was 3.3 U mg-1 of protein. The two isoenzymes had isoelectric points of 6.0 and 7.2, respectiv...

journal_title：Molecular and biochemical parasitology

authors： Uttaro AD,Opperdoes FR

更新日期：1997-10-01 00:00:00

abstract：:We have examined changes in the relative synthesis of individual proteins in promastigotes of Leishmania major subjected to decreasing serum levels in vitro. We observed increases in the relative synthesis of the putative heat-shock proteins of 82 and 70 kDa and of proteins of 79 and 41 kDa but decreases in the synthe...

journal_title：Molecular and biochemical parasitology

authors： Toye P,Remold H

更新日期：1989-06-01 00:00:00

abstract：:Polyacrylamide gel electrophoresis of the total RNA extracted from cultures of Plasmodium falciparum resolved two major RNA components with estimated molecular weights of 1.3 X 10(6) and 0.72 - 0.74 X 10(6). Oligo(dT)-cellulose column chromatography of the total cellular RNA indicates that more than 90% of the total r...

journal_title：Molecular and biochemical parasitology

authors： Vezza AC,Trager W

更新日期：1981-12-01 00:00:00

abstract：:Ribosome biosynthesis, best studied in opisthokonts, is a highly complex process involving numerous protein and RNA factors. Yet, very little is known about the early stages of pre-18S rRNA processing even in these model organisms, let alone the conservation of this mechanism in other eukaryotes. Here we extend our kn...

journal_title：Molecular and biochemical parasitology

authors： Faktorová D,Bär A,Hashimi H,McKenney K,Horák A,Schnaufer A,Rubio MAT,Alfonzo JD,Lukeš J

更新日期：2018-10-01 00:00:00

abstract：:The guide RNA (gRNA) paradigm states that the uridine (U) insertion/deletion type of RNA editing is mediated by short 3' uridylylated gRNAs that are complementary to specific blocks of mature edited sequence. These gRNAs contain the edited sequence information in the form of guiding purine residues that can base pair ...

journal_title：Molecular and biochemical parasitology

authors： Simpson L

更新日期：1997-06-01 00:00:00

abstract：:We have investigated the protein and glycoprotein content of Plasmodium falciparum merozoites by metabolically labeling cultures of schizont-stage parasites with [35S]methionine or with [3H]glucosamine followed by incubation in nonradioactive medium to allow the schizonts to mature into merozoites, infect new erythroc...

journal_title：Molecular and biochemical parasitology

authors： Howard RF,Reese RT

更新日期：1984-03-01 00:00:00

abstract：:The exoglycosidase, beta-N-acetyl-D-hexosaminidase was purified 600-fold from the muscle-stage larvae (L1) of Trichinella spiralis. On sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE), the purified enzyme-active fraction contained 4 polypeptides with apparent molecular weights of 100,000, 68,000, 5...

journal_title：Molecular and biochemical parasitology

authors： Rhoads ML

更新日期：1988-10-01 00:00:00

abstract：:Linearized free maxicircle DNA, present in detergent lysates of Crithidia fasciculata mitochondria, was thought to be a replication intermediate formed during rolling circle replication of maxicircle DNA. Gel electrophoresis of the linearized free maxicircles indicated that they were slightly larger than the maxicircl...

journal_title：Molecular and biochemical parasitology

authors： Carpenter LR,Englund PT

更新日期：1996-02-01 00:00:00

abstract：:Recombinant phage containing putative Ostertagia ostertagi cysteine protease genes have been isolated from a lambda EMBL-3:genomic DNA library using a Haemonchus contortus cathepsin B-like cysteine protease cDNA as hybridization probe. Restriction enzyme maps of the phages suggest that they identify at least 3 genes, ...

journal_title：Molecular and biochemical parasitology

authors： Pratt D,Boisvenue RJ,Cox GN

更新日期：1992-11-01 00:00:00

abstract：:Antibodies were affinity purified from crude antiserum by elution from the 24 kDa region of preparative one-dimensional Western blots containing immobilized adult Schistosoma mansoni inner bilayer membrane proteins. They were shown to be specific for a single acidic polypeptide complex, Smgp24, following immunoblottin...

journal_title：Molecular and biochemical parasitology

authors： Karcz SR,Barnard BJ,Podesta RB

更新日期：1988-11-01 00:00:00

abstract：:Tubulin-binding cofactor C stimulates GTPase activity and contributes to the release of the heterodimeric α/β-tubulin from a super-complex of tubulin monomers and two ancillary cofactors. We have determined the 2.2 Å resolution crystal structure of the C-terminal domain of tubulin-binding cofactor C from Leishmania ma...

journal_title：Molecular and biochemical parasitology

authors： Barrack KL,Fyfe PK,Finney AJ,Hunter WN

更新日期：2015-05-01 00:00:00

abstract：:Genetic diversity within and between tandemly arrayed copies of the Gp63 gene occurs in laboratory isolates of Leishmania spp., but the extent to which this represents natural genetic diversity has not been assessed. Here, the Gp63 locus is examined in 58 fresh isolates of L. peruviana, and clones derived from them, c...

journal_title：Molecular and biochemical parasitology

authors： Espinoza JR,Skinner AC,Davies CR,Llanos-Cuentas A,Arevalo J,Dye C,McMaster WR,Ajioka JW,Blackwell JM

更新日期：1995-06-01 00:00:00

abstract：:Tropomyosins are a family of actin-binding proteins with diverse roles in actin filament function. One of the best characterized roles is the regulation of muscle contraction. Tropomyosin isoforms can be generated from different genes, and from alternative promoters and alternative splicing from the same gene. In this...

journal_title：Molecular and biochemical parasitology

authors： Koziol U,Costábile A,Domínguez MF,Iriarte A,Alvite G,Kun A,Castillo E

更新日期：2011-02-01 00:00:00

abstract：:The steady-state level of the hsp70 mRNAs of Trypanosoma cruzi cultured at different temperatures and growth conditions has been analyzed by Northern blotting. We show that only one size class of hsp70 mRNA, of about 2.2 kb, is transcribed from the hsp70 cluster and that its transcription is constitutive at 28 degrees...

journal_title：Molecular and biochemical parasitology

authors： Requena JM,Jimenez-Ruiz A,Soto M,Assiego R,Santarén JF,Lopez MC,Patarroyo ME,Alonso C

更新日期：1992-07-01 00:00:00

abstract：:The major merozoite-piroplasm surface antigen (mMPSA) of Theileria annulata, Tams1, is known to be antigenically diverse. The possession of variable N-linked glycosylation sites and removal of monoclonal antibody 5E1 reactivity by mild periodate treatment suggested, previously, that divergent epitopes may be conferred...

journal_title：Molecular and biochemical parasitology

authors： Katzer F,McKellar S,Ferguson MA,d'Oliveira C,Shiels BR

更新日期：2002-06-01 00:00:00

abstract：:Faecal metabolite profiling, though in its infancy, allows for investigation of complex metabolic interactions between gastrointestinal infections or diseases and host health. In the present study, we describe a faecal metabolite extraction method for untargeted gas chromatography-mass spectrometry (GC-MS) analysis us...

journal_title：Molecular and biochemical parasitology

authors： Ng JS,Ryan U,Trengove RD,Maker GL

更新日期：2012-10-01 00:00:00

abstract：:Translation initiation factor eIF4F is essential for cap-dependent translation initiation in eukaryotes. eIF4F is a trimeric complex consisting of a scaffold protein eIF4G, cap-binding protein eIF4E and DEAD-box RNA helicase eIF4A. eIF4F binds to the 5' cap structure of the mRNA through eIF4E and facilitates the bindi...

journal_title：Molecular and biochemical parasitology

authors： Adedoja AN,McMahan T,Neal JP,Hamal Dhakal S,Jois S,Romo D,Hull K,Garlapati S

更新日期：2020-03-01 00:00:00