Cysteine proteinase of Entamoeba histolytica. I. Partial purification and action on different enzymes.

abstract：:A gene-family, named sep, encoding small exported proteins conserved across Plasmodium species has been identified. SEP proteins (13-16 kDa) contain a predicted signal peptide at the NH(2)-terminus, an internal hydrophobic region and a polymorphic, low-complexity region at the carboxy-terminus. One member of the Plasm...

journal_title：Molecular and biochemical parasitology

authors： Birago C,Albanesi V,Silvestrini F,Picci L,Pizzi E,Alano P,Pace T,Ponzi M

更新日期：2003-02-01 00:00:00

abstract：:This study on isolated cercarial bodies demonstrates that the biological transformation from cercaria to schistosomulum and the biochemical transition from an aerobic to an anaerobic energy metabolism are separate processes, which are not necessarily linked. The metabolic transition depends on the external glucose con...

journal_title：Molecular and biochemical parasitology

authors： Horemans AM,Tielens AG,van den Bergh SG

更新日期：1992-03-01 00:00:00

abstract：:Genetic manipulation of Plasmodium falciparum in culture through transfection has provided numerous insights into the molecular and cell biology of this parasite. The procedure is rather cumbersome, and is limited by the number of drug-resistant markers that can be used for selecting transfected parasites. Here we rep...

journal_title：Molecular and biochemical parasitology

authors： Ganesan SM,Morrisey JM,Ke H,Painter HJ,Laroiya K,Phillips MA,Rathod PK,Mather MW,Vaidya AB

更新日期：2011-05-01 00:00:00

abstract：:As a start to understanding the importance of intracellular proteolysis in the protozoon Leishmania mexicana, the parasite proteasome has been purified and characterised. The L. mexicana proteasome is similar to proteasomes from other eukaryotes. It is soluble, and the 20S form has a mass of around 670 kDa, composed o...

journal_title：Molecular and biochemical parasitology

authors： Robertson CD

更新日期：1999-09-20 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：:A protease from Plasmodium falciparum was purified 150 fold by high performance liquid chromatography on a TSK-G-3000 SW exclusion column. The enzyme is not retained during pressure filtration with an Amicon PM10 membrane but is retained by a YM5 membrane. The molecular weight of the protease is less than 10,000, base...

journal_title：Molecular and biochemical parasitology

authors： Vander Jagt DL,Hunsaker LA,Campos NM

更新日期：1986-03-01 00:00:00

abstract：:The function of the ecdysone receptor (EcR) during development and molting has been thoroughly investigated in some arthropods such as insects but rarely in crustacean copepods such as the salmon louse Lepeophtheirus salmonis (L. salmonis) (Copepoda, Caligidae). The salmon louse is an ectoparasite on Atlantic salmon t...

journal_title：Molecular and biochemical parasitology

authors： Sandlund L,Nilsen F,Male R,Dalvin S

更新日期：2016-08-01 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：:A membrane-bound sialidase (EC 3.2.1.18) was found in procyclic trypomastigotes of Trypanosoma brucei. The mammalian stage bloodstream form, however, displayed no sialidase activity. This sialidase is an integral surface protein, linked to the membrane via a glycosylphosphatidylinositol anchor. After osmotic lysis and...

journal_title：Molecular and biochemical parasitology

authors： Engstler M,Reuter G,Schauer R

更新日期：1992-08-01 00:00:00

abstract：:Parasitic helminths release molecules into their environment, which are generally referred to as excretory-secretory products or ES. ES derived from a wide range of nematodes, trematodes and cestodes have been studied during the past 30-40 years, their characterization evolving from simple biochemical procedures such ...

journal_title：Molecular and biochemical parasitology

authors： Harnett W

更新日期：2014-07-01 00:00:00

abstract：:Strongyloides and related genera are advantageous subjects for transgenesis in parasitic nematodes, primarily by gonadal microinjection as has been used with Caenorhabditis elegans. Transgenesis has been achieved in Strongyloides stercoralis and in Parastrongyloides trichosuri, but both of these lack well-adapted, con...

journal_title：Molecular and biochemical parasitology

authors： Li X,Shao H,Junio A,Nolan TJ,Massey HC Jr,Pearce EJ,Viney ME,Lok JB

更新日期：2011-10-01 00:00:00

abstract：:CK2 is a ubiquitous but enigmatic kinase. The difficulty in assigning a role to CK2 centers on the fact that, to date, no biologically relevant modulator of its function has been identified. One common theme revolves around a constellation of known substrates involved in growth control, compatible with its concentrati...

journal_title：Molecular and biochemical parasitology

authors： Jensen BC,Kifer CT,Brekken DL,Randall AC,Wang Q,Drees BL,Parsons M

更新日期：2007-01-01 00:00:00

abstract：:The merozoite surface protein-1 of the human malaria parasite Plasmodium falciparum undergoes an extracellular proteolytic cleavage (secondary processing) intrinsic to successful erythrocyte invasion. In the T9/96 clone of P. falciparum the protease responsible has been characterised as a membrane-associated, calcium-...

journal_title：Molecular and biochemical parasitology

authors： Blackman MJ,Chappel JA,Shai S,Holder AA

更新日期：1993-11-01 00:00:00

abstract：:We have purified and characterized the Ascaris suum gamma-glutamylcysteine synthetase, the rate-limiting step in the glutathione biosynthesis. The purified enzyme exhibited a specific activity of 18 U (mg protein)-1. Estimation of the molecular mass of the native enzyme by FPLC on Superdex S-200 revealed the presence ...

journal_title：Molecular and biochemical parasitology

authors： Hussein AS,Walter RD

更新日期：1995-06-01 00:00:00

abstract：:We have compared a total of 44 recognition sites for 12 restriction endonucleases on the 20 kilobase pair maxi-circle of kinetoplast DNA from nine Trypanosoma brucei stocks, four which are known to be infective to man (tow 'gambiense' and two 'rhodesiense' variants). In addition to five polymorphic sites, these DNAs d...

journal_title：Molecular and biochemical parasitology

authors： Borst P,Fase-Fowler F,Gibson WC

更新日期：1981-06-01 00:00:00

abstract：:The microaerophilic parasite Trichomonas vaginalis is a causative agent of painful vaginitis or urethritis, termed trichomoniasis, and can also cause preterm delivery or stillbirth. Treatment of trichomoniasis is almost exclusively based on the nitroimidazole drugs metronidazole and tinidazole. Metronidazole resistanc...

journal_title：Molecular and biochemical parasitology

authors： Leitsch D,Drinić M,Kolarich D,Duchêne M

更新日期：2012-06-01 00:00:00

abstract：:AF3 (AVPGVLRFamide) is an endogenous RFamide-like peptide isolated from the parasitic nematode Ascaris suum. It has a potent and long lasting excitatory effect in A. suum and Ascaridia galli. This is mediated by a mechanism independent of the nicotinic-like acetylcholine (ACh) receptor, which mediates excitatory trans...

journal_title：Molecular and biochemical parasitology

authors： Trim N,Brooman JE,Holden-Dye L,Walker RJ

更新日期：1998-06-01 00:00:00

abstract：:GRA3 is a 30-kDa protein located inside the dense granules of Toxoplasma gondii. Following invasion and exocytosis of dense granules within the parasitophorous vacuole, GRA3 becomes associated with the parasitophorous vacuolar membrane (PVM) and extensions of the PVM which protrude into the cytoplasm. A partial cDNA e...

journal_title：Molecular and biochemical parasitology

authors： Bermudes D,Dubremetz JF,Achbarou A,Joiner KA

更新日期：1994-12-01 00:00:00

abstract：:The beta subunits (beta1, beta2, and beta5) of 20S proteasome and HslV/ClpQ are ATP-dependent threonine proteases present in eukaryotes and prokaryotes, respectively that control levels of key regulatory proteins in the cell. The orthologue of prokaryotic HslV protease in Plasmodium falciparum (PfHslV) is a novel drug...

journal_title：Molecular and biochemical parasitology

authors： Ramasamy G,Gupta D,Mohmmed A,Chauhan VS

更新日期：2007-04-01 00:00:00

abstract：:Subtilisin-like proteases of malaria parasite Plasmodium falciparum (PfSUB1, 2 and 3) are expressed at late asexual blood stages. PfSUB1 and 2 are considered important drug targets due to their essentiality for parasite blood stages and role in merozoite egress and invasion of erythrocytes. We have earlier shown the i...

journal_title：Molecular and biochemical parasitology

authors： Alam A,Bhatnagar RK,Relan U,Mukherjee P,Chauhan VS

更新日期：2013-10-01 00:00:00

abstract：:In Leishmania mexicana two genes were detected coding for different isoforms of the glycolytic enzyme phosphoglycerate kinase. This situation contrasts with that observed in other Trypanosomatidae (Trypanosoma brucei, Trypanosoma congolense, Crithidia fasciculata) analyzed previously, which all contain three different...

journal_title：Molecular and biochemical parasitology

authors： Adjé CA,Opperdoes FR,Michels PA

更新日期：1997-12-01 00:00:00

abstract：:The infection of human erythrocytes by two strains of the human malarial parasite, Plasmodium falciparum (FCQ-27 or the multi-drug-resistant strain K-1), markedly changed the transport characteristics of the nucleosides, adenosine and tubercidin, compared to uninfected erythrocytes. A component of the transport of the...

journal_title：Molecular and biochemical parasitology

authors： Gero AM,Scott HV,O'Sullivan WJ,Christopherson RI

更新日期：1989-04-01 00:00:00

abstract：:Plasmodium falciparum is the causative organism for the most severe form of malaria among humans. The clinical symptoms are accredited to the asexual stage of parasite life cycle, involving merozoite invasion of erythrocyte, development and re-invasion into the new erythrocyte. Interaction of parasite proteins present...

journal_title：Molecular and biochemical parasitology

authors： Hans N,Relan U,Dubey N,Gaur D,Chauhan VS

更新日期：2015-08-01 00:00:00

abstract：:A neutralizing antiserum, C16, raised against sporozoites of Theileria parva parva was used to screen a lambda gt11 expression library of T. parva parva (Muguga) genomic DNA fragments. Proteins encoded by one phage clone, lambda TpS-17, were reactive with the C16 antiserum. Detailed characterisation of the DNA insert ...

journal_title：Molecular and biochemical parasitology

authors： Iams KP,Young JR,Nene V,Desai J,Webster P,ole-MoiYoi OK,Musoke AJ

更新日期：1990-02-01 00:00:00

abstract：:The cysteine proteinase B of Leishmania parasites is an important virulence factor. In this study we have expressed, isolated and characterized for the first time a recombinant CPB from Leishmania braziliensis, the causative agent of mucocutaneous leishmaniosis. The mature region of the recombinant CPB shares a high p...

journal_title：Molecular and biochemical parasitology

authors： Lanfranco MF,Loayza-Muro R,Clark D,Núñez R,Zavaleta AI,Jimenez M,Meldal M,Coombs GH,Mottram JC,Izidoro M,Juliano MA,Juliano L,Arévalo J

更新日期：2008-10-01 00:00:00

abstract：:RAB proteins are small GTPases with vital roles in eukaryotic intracellular transport; orthologous RABs appear to fulfil similar functions in diverse organisms. Trypanosoma brucei spp., the causative organisms of Old World trypanosomiasis of humans and domestic animals, have extremely effective endocytic and exocytic ...

journal_title：Molecular and biochemical parasitology

authors： Ackers JP,Dhir V,Field MC

更新日期：2005-05-01 00:00:00

abstract：:In trypanosomes, trans-splicing is a major essential RNA-processing mechanism that involves the addition of a spliced leader sequence to all mRNAs from a small RNA species, known as the spliced leader RNA (SL RNA). SL RNA maturation is poorly understood and it is not clear where assembly with Sm proteins takes place. ...

journal_title：Molecular and biochemical parasitology

authors： Biton M,Mandelboim M,Arvatz G,Michaeli S

更新日期：2006-12-01 00:00:00

abstract：:A Mo7-derived Babesia bovis line stably transfected with the gfp-bsd gene was inoculated into two four to five months old calves, while two additional calves were inoculated with Mo7 parasites. Similar mild clinical signs were detected in all calves. B. bovis rap-1 was identified in the bloodstream by PCR four days po...

journal_title：Molecular and biochemical parasitology

authors： Suarez CE,Laughery JM,Schneider DA,Sondgeroth KS,McElwain TF

更新日期：2012-09-01 00:00:00

abstract：:Leishmania major aquaglyceroporin (AQP1) is an adventitious metalloid channel that allows the bidirectional movement of arsenite and antimonite. Here we demonstrate that AQP1 is subjected to proteasome-dependent degradation. Treatment of Leishmania promastigotes with the proteasome inhibitor MG132 resulted in increase...

journal_title：Molecular and biochemical parasitology

authors： Sharma M,Mandal G,Mandal S,Bhattacharjee H,Mukhopadhyay R

更新日期：2015-06-01 00:00:00

abstract：:In Trypanosoma brucei, the active variant surface glycoprotein genes (vsg) are located at telomeric expression sites (ES), whose expression is highly regulated during the life cycle. In the procyclic form, all ESs are repressed. In the bloodstream form, where antigenic variation occurs, only one of approximately 20 ES...

journal_title：Molecular and biochemical parasitology

authors： Navarro M,Cross GA

更新日期：1998-07-01 00:00:00