Ecdysteroid excretion by adult Hymenolepis diminuta in vitro.

abstract：:Malaria parasites export 'a secretome' of hundreds of proteins, including major virulence determinants, from their endoplasmic reticulum (ER), past the parasite plasma and vacuolar membranes to the host erythrocyte. The export mechanism is high affinity (nanomolar) binding of a host (cell) targeting (HT) motif RxLxE/D...

journal_title：Molecular and biochemical parasitology

authors： Bhattacharjee S,Speicher KD,Stahelin RV,Speicher DW,Haldar K

更新日期：2012-10-01 00:00:00

abstract：:Antigenic diversity was observed in the circumsporozoite (CS) proteins of five of the six Plasmodium cynomolgi isolates (NIH, Mulligan, London, Gombak, Ceylon, RO) that we examined. Monoclonal antibodies were produced against salivary gland sporozoites of three of the isolates. Interaction of these monoclonal antibodi...

journal_title：Molecular and biochemical parasitology

authors： Cochrane AH,Gwadz RW,Ojo-Amaize E,Hii J,Nussenzweig V,Nussenzweig RS

更新日期：1985-01-01 00:00:00

abstract：:Phosphatidylcholine is the most abundant phospholipid in the membranes of the human parasite Leishmania. The metabolic pathways leading to its biosynthesis are likely to play a critical role in parasite development and survival and may offer a good target for antileishmanial chemotherapy. Phosphatidylcholine synthesis...

journal_title：Molecular and biochemical parasitology

authors： Zufferey R,Mamoun CB

更新日期：2002-11-01 00:00:00

abstract：:Malaria parasites possess a de novo heme synthetic pathway. Interestingly, this pathway is dispensable during the blood stages of development in mammalian hosts. The assembly of the two most important hemeproteins, cytochromes c and c1, is mediated by cytochrome heme lyase enzymes. Plasmodium spp. possess two cytochro...

journal_title：Molecular and biochemical parasitology

authors： Posayapisit N,Songsungthong W,Koonyosying P,Falade MO,Uthaipibull C,Yuthavong Y,Shaw PJ,Kamchonwongpaisan S

更新日期：2016-01-01 00:00:00

abstract：:The subcellular location of the major malarial glycoprotein in erythrocytes infected with schizonts of Plasmodium falciparum has been studied by two methods. In the first, glycoproteins were labelled with [3H]glucosamine or [3H]isoleucine during in vitro culture. Trypsin treatment of intact infected erythrocytes cause...

journal_title：Molecular and biochemical parasitology

authors： Howard RJ,Lyon JA,Diggs CL,Haynes JD,Leech JH,Barnwell JW,Aley SB,Aikawa M,Miller LH

更新日期：1984-04-01 00:00:00

abstract：:In the present work, we evaluate in vitro the cytosolic and microsomal activity of glutathione-S-transferases in adults of Fasciola hepatica susceptible (Cullompton Strain) and resistant (Sligo Strain) to triclabendazole. The triclabendazole resistant (Sligo) fluke expressed significant major metabolic activity of glu...

journal_title：Molecular and biochemical parasitology

authors： Scarcella S,Lamenza P,Virkel G,Solana H

更新日期：2012-01-01 00:00:00

abstract：:Glutamate-cysteine ligase (GCL) is a heterodimer enzyme composed of a catalytic subunit (GCLC) and a modifier subunit (GCLM). This enzyme catalyses the synthesis of γ-glutamylcysteine, a precursor of glutathione. cDNAs of the putative glutamate-cysteine ligase catalytic (Ace-GCLC) and modifier subunits (Ace-GCLM) of A...

journal_title：Molecular and biochemical parasitology

authors： Wiśniewski M,Lapiński M,Zdziarska A,Długosz E,Bąska P

更新日期：2014-08-01 00:00:00

abstract：:gamma-Glutamyl transpeptidase, which is of central importance in the degradation of glutathione, was purified from Ascaris suum to apparent homogeneity. The enzyme was found to be a predominantly membrane-bound protein and was solubilized by Triton X-100. The purified enzyme, which exhibits a specific activity of 1009...

journal_title：Molecular and biochemical parasitology

authors： Hussein AS,Walter RD

更新日期：1996-04-01 00:00:00

abstract：:Antisera from lambs immunised with the Haemonchus contortus integral membrane protein complex, Haemonchus galactose-containing glycoprotein (H-gal-GP), the lambs being refractory to subsequent challenge, were used to identify several clones from an adult H. contortus lambda gt11 cDNA library. Using gene-specific oligo...

journal_title：Molecular and biochemical parasitology

authors： Redmond DL,Knox DP,Newlands G,Smith WD

更新日期：1997-03-01 00:00:00

abstract：:A group of Leishmania mexicana cysteine proteases that differ from those previously found in this protozoon are described. The enzymes characteristically have a preference for peptidyl substrates with a phenylalanyl-valyl-arginyl moiety, do not hydrolyse gelatin in substrate-sodium dodecyl sulphate polyacrylamide gels...

journal_title：Molecular and biochemical parasitology

authors： Robertson CD,Coombs GH

更新日期：1993-12-01 00:00:00

abstract：:Trophozoites of Entamoeba invadens were able to ingest glucopolysaccharides and metabolize them. An activity capable of degrading these substrates was purified to apparent homogeneity. The enzyme was identified as beta-amylase (alpha-1,4-D-glucan maltohydrolase EC 3.2.1.2): It was active against glycogen, amylose and ...

journal_title：Molecular and biochemical parasitology

authors： Serafimova F,Franz A,Werries E

更新日期：1996-12-20 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：:Many of the currently available nematicides used in nematode control are hazardous to the user, environment and beneficial non-target organisms. Therefore the need to develop alternative methods for nematode control such as the development of nematode-resistant crops through RNA-mediated interference (RNAi) holds grea...

journal_title：Molecular and biochemical parasitology

authors： Joseph S,Gheysen G,Subramaniam K

更新日期：2012-11-01 00:00:00

abstract：:The issue of whether genetic exchange occurs at a significant frequency in natural populations of Trypanosoma brucei is controversial and one of the arguments against a high frequency has been the apparent lack of host infections with mixtures of trypanosome genotypes. Three minisatellite markers (MS42, CRAM, 292) wit...

journal_title：Molecular and biochemical parasitology

authors： MacLeod A,Turner CM,Tait A

更新日期：1999-08-20 00:00:00

abstract：:A total of 518 expressed sequence tags (ESTs) have been generated from clones randomly selected from a cDNA library and a spliced leader sub-library of a Trypanosoma brucei rhodesiense bloodstream clone. 205 (39%) of the clones were identified based on matches to 113 unique genes in the public databases. Of these, 71 ...

journal_title：Molecular and biochemical parasitology

authors： el-Sayed NM,Alarcon CM,Beck JC,Sheffield VC,Donelson JE

更新日期：1995-07-01 00:00:00

abstract：:Electron paramagnetic resonance spectrometry (EPR) techniques revealed a complex set of redox components in intact respiring cells of Tritrichomonas foetus, an aerotolerant anaerobic protozoon which lacks mitochondria. One of the two main systems of terminal respiration of this organism is the hydrogenosomal system, w...

journal_title：Molecular and biochemical parasitology

authors： Ohnishi T,Lloyd D,Lindmark DG,Müller M

更新日期：1980-10-01 00:00:00

abstract：:Kinetoplast DNA (kDNA) was isolated from 56 stocks of Trypanosoma cruzi isolated from human patients, animals and insects from Brazil, Venezuela, Colombia and Costa Rica. Comparison of the patterns of digested kDNA on acrylamide gels led to the grouping of several stocks into two schizodemes. Schizodeme analysis was a...

journal_title：Molecular and biochemical parasitology

authors： Avila H,Goncalves AM,Nehme NS,Morel CM,Simpson L

更新日期：1990-09-01 00:00:00

abstract：:The major surface antigen (30 kDa) of Brugia pahangi has been characterised by a number of biochemical and immunochemical means. The 30 kDa polypeptide is a glycoprotein which can be extracted from the worm surface by homogenization in the absence of detergents. The 30 kDa polypeptide can be metabolically labelled wit...

journal_title：Molecular and biochemical parasitology

authors： Devaney E

更新日期：1988-01-01 00:00:00

abstract：:Precipitin arcs formed after immunoelectrophoresis of Schistosoma mansoni egg, worm and cercarial antigens with polyspecific rabbit antisera have been 'stained' at neutral pH with chromogenic enzyme substrates specific for proteases and peptidases. A total of 7 antigenically distinct enzymes with peptidolytic properti...

journal_title：Molecular and biochemical parasitology

authors： Doenhoff MJ,Modha J,Curtis RH,Adeoye GO

更新日期：1988-12-01 00:00:00

abstract：:The variant surface glycoproteins (VSGs) of both metacyclic and bloodstream forms of Trypanosoma congolense are shown to be anchored to the plasma membrane through a glycolipid similar to that found in Trypanosoma brucei. Release of soluble VSG from both metacyclic and bloodstream forms is associated with the exposure...

journal_title：Molecular and biochemical parasitology

authors： Ross CA,Cardoso de Almeida ML,Turner MJ

更新日期：1987-01-15 00:00:00

abstract：:Two tandemly linked genes are present in the Leishmania infantum genome that code for the acidic ribosomal PO protein. The genes are identical in the coding region, although a striking lack of nucleotide sequence conservation is observed when the boundaries of the coding regions between both genes are compared. The 3'...

journal_title：Molecular and biochemical parasitology

authors： Soto M,Requena JM,Alonso C

更新日期：1993-10-01 00:00:00

abstract：:Species of Centrorhynchus (Polymorphida: Centrorhynchidae) commonly parasitize various falconiform and strigiform birds worldwide. In the present study, the complete mitochondrial (mt) genome sequences of Centrorhynchus clitorideus was sequenced and annotated for the first time based on specimens collected from the li...

journal_title：Molecular and biochemical parasitology

authors： Muhammad N,Suleman,Khan MS,Li L,Zhao Q,Ullah H,Zhu XQ,Ma J

更新日期：2020-05-01 00:00:00

abstract：:We have cloned and expressed the full-length gene encoding the hypoxanthine-guanine-xanthine phosphoribosyltransferase (HGXPRTase) from the anaerobic protozoan parasite Tritrichomonas foetus. This enzyme is essential in nucleic acid metabolism of T. foetus because the parasite is unable to synthesize purine nucleotide...

journal_title：Molecular and biochemical parasitology

authors： Chin MS,Wang CC

更新日期：1994-02-01 00:00:00

abstract：:Clones of the rRNA genes of Ostertagia ostertagi were selected from a library prepared from the genomic DNA of adult worms of strain LA-2. A 13.4-kb insert in a clone, lambda OOR78, is comprised of one complete 7.5-kb rDNA unit and portions of two adjacent units. The rDNA unit is directly repeated in a head-to-tail fa...

journal_title：Molecular and biochemical parasitology

authors： Dame JB,Yowell CA,Courtney CH,Lindgren WG

更新日期：1991-04-01 00:00:00

abstract：:Infection with larval trematodes has been shown to inhibit several snail-host defences, including hemocyte phagocytosis, cytotoxicity, motility, and adherence. Certain plasma factors which mediate snail defence responses, and which may be produced by host hemocytes, also appear to be altered by these parasites. In thi...

journal_title：Molecular and biochemical parasitology

authors： Lodes MJ,Connors VA,Yoshino TP

更新日期：1991-11-01 00:00:00

abstract：:Trypanosoma cruzi presents high genetic diversity and parasite isolates show remarkable differences in biological parameters. In this study, we evaluated whether DNA microarrays containing CL Brener cDNAs can be used for comparative genomics and for the analysis of gene expression in T. cruzi. We constructed a prototy...

journal_title：Molecular and biochemical parasitology

authors： Baptista CS,Vêncio RZ,Abdala S,Valadares MP,Martins C,de Bragança Pereira CA,Zingales B

更新日期：2004-12-01 00:00:00

abstract：:The presence of virus-derived RNA was investigated in 38 axenically growing Giardia isolates from different geographic areas. The RNA virus was demonstrated in Giardia strains from humans in the U.S.A., England and the majority of strains from Poland. Two strains isolated respectively from a cat and a cavia also conta...

journal_title：Molecular and biochemical parasitology

authors： De Jonckheere JF,Gordts B

更新日期：1987-02-01 00:00:00

abstract：:With the rapid spread of drug-resistant strains of Plasmodium falciparum, the development of new antimalarials is an urgent need. As malaria parasites live in a highly pro-oxidant environment, their anti-oxidant defences have frequently been suggested as candidate drug targets. A key point in such defences is the prod...

journal_title：Molecular and biochemical parasitology

authors： Aparicio IM,Marín-Menéndez A,Bell A,Engel PC

更新日期：2010-08-01 00:00:00

abstract：:A Trypanosoma cruzi small subunit ribosomal RNA gene was sequenced from genomic recombinant plasmid clones. The assigned coding region was 2319 bp, the longest SSU rRNA gene described to date. On the basis of comparisons with published sequences from Crithidia fasciculata, Trypanosoma brucei, and Leishmania donovani, ...

journal_title：Molecular and biochemical parasitology

authors： Hernández R,Rios P,Valdés AM,Piñero D

更新日期：1990-06-01 00:00:00

abstract：:The degree of polymorphism and the allelic distribution of 2 major Plasmodium falciparum merozoite surface antigens (MSA1 and MSA2) have been analysed in clinical isolates from Colombia. DNA was prepared directly from patients' blood and used in PCR reactions to amplify block 2 of MSA1 and the central region from MSA2...

journal_title：Molecular and biochemical parasitology

authors： Snewin VA,Herrera M,Sanchez G,Scherf A,Langsley G,Herrera S

更新日期：1991-12-01 00:00:00