Antagonism of sulfadoxine and pyrimethamine antimalarial activity in vitro by p-aminobenzoic acid, p-aminobenzoylglutamic acid and folic acid.

abstract：:The membrane potential and pH gradient over the plasma membrane of the protozoan parasite Trypanosoma brucei were measured with radioactive indicators in combination with the silicone oil centrifugation technique over a range of temperatures. At 37 degrees C a small membrane potential and pH gradient of similar magnit...

journal_title：Molecular and biochemical parasitology

authors： Ter Kuile BH,Wiemer EA,Michels PA,Opperdoes FR

更新日期：1992-10-01 00:00:00

abstract：:A polyprotein composed of multiple units arranged in direct tandem arrays has been identified in parasitic and free living nematodes. Analysis of previously cloned units from the Dirofilaria immitis polyprotein antigen (DiPA) indicated the units were nearly identical but here we demonstrate that they segregate into tw...

journal_title：Molecular and biochemical parasitology

authors： Poole CB,Hornstra LJ,Benner JS,Fink JR,McReynolds LA

更新日期：1996-11-12 00:00:00

abstract：:New phosphoproteins appear on the host erythrocyte membrane during Plasmodium berghei and P. chabaudi infection. Distinct proteins having similar properties and all distinguished by isoelectric points of less than 4.0 are identified. Associated with the erythrocyte membranes of P. berghei infected erythrocytes are two...

journal_title：Molecular and biochemical parasitology

authors： Wiser MF,Leible MB,Plitt B

更新日期：1988-01-01 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：:Plasmepsins (PM), aspartic proteases of Plasmodium, comprises a family of ten proteins that perform critical functions in Plasmodium life cycle. Except VII and VIII, functions of the remaining plasmepsin members have been well characterized. Here, we have generated a mutant parasite lacking PM VII in Plasmodium berghe...

journal_title：Molecular and biochemical parasitology

authors： Mastan BS,Kumari A,Gupta D,Mishra S,Kumar KA

更新日期：2014-06-01 00:00:00

abstract：:Antibodies raised against a Leishmania major recombinant promastigote surface antigen 2 (PSA-2) fragment recognized three major polypeptides of approximate M(r) 96,000, 80,000 and 50,000 in promastigotes of three Israeli isolates of L. major including the cloned line LRC-L137-V121, but detected a different array of po...

journal_title：Molecular and biochemical parasitology

authors： Symons FM,Murray PJ,Ji H,Simpson RJ,Osborn AH,Cappai R,Handman E

更新日期：1994-09-01 00:00:00

abstract：:Schistosomiasis is an intravascular parasitic infection estimated to affect over 206 million people, the majority of whom live in Africa where the trematode worms Schistosoma mansoni and Schistosoma haematobium are the major causative agents. While a number of drugs have been used to treat schistosomiasis, praziquante...

journal_title：Molecular and biochemical parasitology

authors： Sanchez MC,Cupit PM,Bu L,Cunningham C

更新日期：2019-03-01 00:00:00

abstract：:The synchronization of intraerythrocytic maturation of Plasmodium parasites is an important factor in the malaria infection process. Synchronization is mediated by inositol phosphate (InsP(x))-induced Ca(2+)-release from internal stores. To further investigate the InsP(x) metabolism in these parasites a Plasmodium pro...

journal_title：Molecular and biochemical parasitology

authors： Stritzke C,Nalaskowski MM,Fanick W,Lin H,Mayr GW

更新日期：2012-12-01 00:00:00

abstract：:L-myo-Inositol 1-phosphate synthase (I-1-P synthase) catalyses the primary reaction for the synthesis of inositol in a variety of prokaryotes, eukaryotes and in the chloroplasts of algae and higher plants. Inositol is a precursor of essential macromolecules like membrane phospholipids, GPI anchor proteins and lipophos...

journal_title：Molecular and biochemical parasitology

authors： Lohia A,Hait NC,Majumder AL

更新日期：1999-01-05 00:00:00

abstract：:Topoisomerases are enzymes that participate in many cellular functions involving topological manipulation of DNA strands. There are two types of topoisomerases in the cell: (a) type I topoisomerases; and (b) type II topoisomerases (topo II). Previously we have cloned and sequenced the gene encoding Trypanosoma cruzi t...

journal_title：Molecular and biochemical parasitology

authors： Fragoso SP,Mattei D,Hines JC,Ray D,Goldenberg S

更新日期：1998-08-01 00:00:00

abstract：:Phosphoserine phosphatase (PSP) catalyzes the third step of the phosphorylated serine biosynthetic pathway, and occurred multiple times in evolution, while enzymes catalyzing the first and second steps in the pathway have single respective origins. In the present study, we examined the existence of PSP among genus Ent...

journal_title：Molecular and biochemical parasitology

authors： Chiba Y,Makiuchi T,Jeelani G,Nozaki T

更新日期：2016-06-01 00:00:00

abstract：:The extent of structural conservation of the Plasmodium falciparum sporozoite surface protein gene, STARP, recently characterized in the T9/96 clone, has been analyzed using the polymerase chain reaction. Results from Ivory Coast and Thai clones, field isolates originating from Brazil and Kenya and laboratory-maintain...

journal_title：Molecular and biochemical parasitology

authors： Fidock DA,Sallenave-Sales S,Sherwood JA,Gachihi GS,Ferreira-da-Cruz MF,Thomas AW,Druilhe P

更新日期：1994-10-01 00:00:00

abstract：:Genomic plasticity is a hallmark of many protozoan parasites, including Plasmodium spp, Trypanosoma spp, Leishmania ssp and Giardia lamblia. Strikingly, there is a common theme regarding the structural basis of this karyotype variability. Chromosomes are compartmentalized into conserved central domains and polymorphic...

journal_title：Molecular and biochemical parasitology

authors： Lanzer M,Fischer K,Le Blancq SM

更新日期：1995-03-01 00:00:00

abstract：:Several proteins synthesized by mature asexual stages of Plasmodium falciparum interact with the erythrocyte membrane skeleton. One of these is the mature-parasite-infected erythrocyte surface antigen (MESA; also called PfEMP2), a phosphoprotein of 250-300 kDa, which is found on the internal face of the erythrocyte me...

journal_title：Molecular and biochemical parasitology

authors： Lustigman S,Anders RF,Brown GV,Coppel RL

更新日期：1990-01-15 00:00:00

abstract：:Kinetoplast DNA (kDNA), the mitochondrial DNA of trypanosomes, is a network of thousands of topologically interlocked DNA minicircles and about 50 maxicircles. In this study, we have analysed the kDNA molecules of 6 strains of Trypanosoma evansi from different geographical areas. 2 strains were found to be dyskinetopl...

journal_title：Molecular and biochemical parasitology

authors： Ou YC,Giroud C,Baltz T

更新日期：1991-05-01 00:00:00

abstract：:Three species of blood fluke from the genus Cardicola are known to parasitize and cause disease in Bluefin Tunas--C. forsteri, C. orientalis, and C. opisthorchis. Although initially believed to be separated by geography and host specificity, recent identification of at least two Cardicola spp. concurrently present wit...

journal_title：Molecular and biochemical parasitology

authors： Polinski M,Hamilton DB,Nowak B,Bridle A

更新日期：2013-09-01 00:00:00

abstract：:We have undertaken the first comparative pilot gene discovery analysis of approximately 25,000 random genomic and expressed sequence tags (ESTs) from three species of Plasmodium, the infectious agent that causes malaria. A total of 5482 genome survey sequences (GSSs) and 5582 ESTs were generated from mung bean nucleas...

journal_title：Molecular and biochemical parasitology

authors： Carlton JM,Muller R,Yowell CA,Fluegge MR,Sturrock KA,Pritt JR,Vargas-Serrato E,Galinski MR,Barnwell JW,Mulder N,Kanapin A,Cawley SE,Hide WA,Dame JB

更新日期：2001-12-01 00:00:00

abstract：:Chloroquine is a critically important antimalarial drug and a well known intercalator into DNA. We now show that chloroquine binds more avidly to poly(dG-dC).poly(dG-dC) than to other synthetic polynucleotides and that this binding inhibits both salt- and cobalt-induced transitions to Z-DNA. These data are consistent ...

journal_title：Molecular and biochemical parasitology

authors： Kwakye-Berko F,Meshnick S

更新日期：1990-03-01 00:00:00

abstract：:Laminin is a major constituent of the basal lamina surrounding the midgut of the malaria vectors that has been implicated in the development of the Plasmodium oocyst. In this report we describe the cloning of the Anopheles gambiae gene encoding the laminin gamma 1 polypeptide and follow its expression during mosquito ...

journal_title：Molecular and biochemical parasitology

authors： Vlachou D,Lycett G,Sidén-Kiamos I,Blass C,Sinden RE,Louis C

更新日期：2001-02-01 00:00:00

abstract：:Many surface antigens of the human malaria parasite Plasmodium falciparum show extraordinary diversity, with different alleles being so divergent as to be unalignable in some coding regions. To better understand the population history and modes of selection on such loci, we sequenced genomic regions flanking the highl...

journal_title：Molecular and biochemical parasitology

authors： Amodu OK,Hartl DL,Roy SW

更新日期：2008-05-01 00:00:00

abstract：:The glycosylphosphatidylinositol phospholipase C (GPI-PLC) from Trypanosoma brucei is particularly effective in hydrolysing the GPI-anchors of some proteins. The enzyme is inhibited by Zn2+ and p-chloromercurylphenylsulphonic acid, both of which can act as sulphydryl reagents, suggesting that a cysteine residue may be...

journal_title：Molecular and biochemical parasitology

authors： Carnall N,Webb H,Carrington M

更新日期：1997-12-15 00:00:00

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：:A Fasciola hepatica cDNA clone of 1752 bp was isolated from an adult worm cDNA expression library by immunological screening using a rabbit serum against the excretory-secretory antigens. The nucleotide sequence of the cDNA revealed the presence of an open reading frame of 489 codons which encoded a 55 kDa polypeptide...

journal_title：Molecular and biochemical parasitology

authors： Salazar-Calderón M,Martín-Alonso JM,Castro AM,Parra F

更新日期：2003-01-01 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：:Surface labeling studies using two populations of Onchocerca gibsoni microfilariae revealed important differences in major radioiodinated proteins. Small numbers of microfilariae harvested from the skin of cattle or the uteri of adult worms from skin nodules were purified, radioiodinated, solubilized and the proteins ...

journal_title：Molecular and biochemical parasitology

authors： Forsyth KP,Copeman DB,Mitchell GF

更新日期：1984-02-01 00:00:00

abstract：:Opisthorchis viverrini is the causative agent of human opisthorchiasis in Thailand and long lasting infection with the parasite has been correlated with the development of cholangiocarcinoma. In this work we have molecularly characterized the first member of a protein family carrying two DM9 repeats in this parasite (...

journal_title：Molecular and biochemical parasitology

authors： Labbunruang N,Phadungsil W,Tesana S,Smooker PM,Grams R

更新日期：2016-05-01 00:00:00

abstract：:Soon after infecting a mammalian host, cercariae of Schistosoma mansoni rapidly undergo a series of morphologic and biochemical adaptations associated with transformation to their next developmental stage, the schistosomulum. Few of these changes are associated with alterations in gene expression except for an apparen...

journal_title：Molecular and biochemical parasitology

authors： Blanton RE,Licate LS

更新日期：1992-04-01 00:00:00

abstract：:The glycosome, a microbody organelle found only in kinetoplastid protozoa, compartmentalizes the first six enzymes of glycolysis. In order to better understand the regulation and targeting of glycolytic enzymes in trypanosomes, we have cloned and analyzed the three genes of the phosphoglycerate kinase (PGK) complex of...

journal_title：Molecular and biochemical parasitology

authors： Parker HL,Hill T,Alexander K,Murphy NB,Fish WR,Parsons M

更新日期：1995-02-01 00:00:00

abstract：:DNA processes, including transcriptional activation, are largely governed by histone modifications. For most eukaryotes, chromatin-remodeling machines have been identified that move, replace, or decorate histones. Recent studies have shed some important light on similar machinery operating in apicomplexan parasites, i...

journal_title：Molecular and biochemical parasitology

authors： Sullivan WJ Jr,Hakimi MA

更新日期：2006-08-01 00:00:00

abstract：:We have isolated and characterized a gene encoding a novel GTP-binding protein of the GTPase superfamily in the filarial parasites Brugia malayi and Onchocerca volvulus. The deduced amino acid sequence of the cloned molecule has approximately 30% overall homology to ras proteins and approximately 90% homology to the '...

journal_title：Molecular and biochemical parasitology

authors： Dissanayake S,Xu M,Piessens WF

更新日期：1992-12-01 00:00:00