Protoporphyrinogen IX oxidase from Plasmodium falciparum is anaerobic and is localized to the mitochondrion.

abstract：:Cloning by limit dilution of an isolate of Leishmania tropica (LRC-L137) that is infective for mice resulted in 7 stable clones, only one of which was infective in BALB/c mice. Three of the non-infective clones that were examined for survival in BALB/c macrophages in vitro seemed to be killed more readily, suggesting ...

journal_title：Molecular and biochemical parasitology

authors： Handman E,Hocking RE,Mitchell GF,Spithill TW

更新日期：1983-02-01 00:00:00

abstract：:A novel cDNA was isolated from a library of Cysticercus cellulosae by immunological screening. Sequence analysis reveals that it has typical annexin structures. However, since its N-terminus is distinct and the core domain only has 32-44% amino acid identity to the tetrads of other annexins, the cDNA encodes a member ...

journal_title：Molecular and biochemical parasitology

authors： Hongli Y,Shuhan S,Ruiwen C,Yingjun G

更新日期：2002-01-01 00:00:00

abstract：:The pyrimidine biosynthesis pathway in the protozoan pathogen Toxoplasma gondii is essential for parasite growth during infection. To investigate the properties of dihydroorotate dehydrogenase (TgDHOD), the fourth enzyme in the T. gondii pyrimidine pathway, we expressed and purified recombinant TgDHOD. TgDHOD exhibite...

journal_title：Molecular and biochemical parasitology

authors： Hortua Triana MA,Huynh MH,Garavito MF,Fox BA,Bzik DJ,Carruthers VB,Löffler M,Zimmermann BH

更新日期：2012-08-01 00:00:00

abstract：:Distinct 3'- and 5'-nucleotidase activities were localized to the surface membrane of Leishmania donovani promastigotes using enzymatic reactions with live intact cells and fine structure enzyme-mediated cytochemical reactions with intact cells, cell homogenates, and isolated surface membranes. The results indicated t...

journal_title：Molecular and biochemical parasitology

authors： Dwyer DM,Gottlieb M

更新日期：1984-02-01 00:00:00

abstract：:MRE11 is a conserved multi-functional protein that is important for maintaining genomic integrity in yeast and mammalian cells. By database searching, we identified a full-length candidate MRE11 on Trypanosoma brucei chromosome II. We subsequently cloned and sequenced the corresponding gene from the Lister 427 strain....

journal_title：Molecular and biochemical parasitology

authors： Tan KS,Leal ST,Cross GA

更新日期：2002-11-01 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：: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：:A poly-zinc finger protein, designated PZFP1 was identified in Trypanosoma cruzi for the first time. The protein has 191 amino acids, contains seven motifs Cys(X)(2)Cys(X)(4)His(X)(4)Cys. A recombinant PZFP1 was generated in E. coli and the expected 21kDa polypeptide co-purified with two other inducible products of ab...

journal_title：Molecular and biochemical parasitology

authors： Espinosa JM,Portal D,Lobo GS,Pereira CA,Alonso GD,Gómez EB,Lan GH,Pomar RV,Flawiá MM,Torres HN

更新日期：2003-09-01 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：:The apicomplexan Toxoplasma gondii replicates by endodyogeny, in which replicated organelles assemble into nascent daughter buds within the maternal parasite. The mechanisms governing this complex sequence are not understood. We now report that the kinase inhibitor 3-methlyadenine (3-MA) efficiently blocks T. gondii r...

journal_title：Molecular and biochemical parasitology

authors： Wang Y,Karnataki A,Parsons M,Weiss LM,Orlofsky A

更新日期：2010-10-01 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：: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：:Blood-stage malaria vaccine candidates include surface proteins of the merozoite. Antibodies to these proteins may either block essential steps during invasion or render the merozoite susceptible to phagocytosis or complement-mediated degradation. Structural information on merozoite surface proteins complexed to antib...

journal_title：Molecular and biochemical parasitology

authors： Dekker C,Uthaipibull C,Calder LJ,Lock M,Grainger M,Morgan WD,Dodson GG,Holder AA

更新日期：2004-09-01 00:00:00

abstract：:A Babesia bovis merozoite protein, Bb-1, was localized by immunoelectron microscopy to an apical organelle known as the spherical body. This unique structure appears to be analogous to dense granules of other apicomplexan protozoa. Similar to previously described dense granule proteins of Plasmodium spp., Bb-1 is secr...

journal_title：Molecular and biochemical parasitology

authors： Hines SA,Palmer GH,Brown WC,McElwain TF,Suarez CE,Vidotto O,Rice-Ficht AC

更新日期：1995-02-01 00:00:00

abstract：:Ribosomal RNA isolated from the malaria parasite Plasmodium falciparum consists of two species with molecular weight of 1.49 +/- 0.09 X 10(6) and 0.78 +/- 0.02 X 10(6) present in equimolar quantities. Their molecular weights are comparable with those of other protozoa but quite distinct from those of the human host. T...

journal_title：Molecular and biochemical parasitology

authors： Hyde JE,Zolg JW,Scaife JG

更新日期：1981-12-31 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：:A mild surface-labeling procedure was applied to various developmental stages of Schistosoma mansoni. An 18 kDa protein was preferentially labeled in freshly transformed schistosomula. The labeled protein was equally present on skin-penetrated and mechanically prepared schistosomula and it disappeared upon digestion o...

journal_title：Molecular and biochemical parasitology

authors： Liberti P,Festucci A,Ruppel A,Gigante S,Cioli D

更新日期：1986-01-01 00:00:00

abstract：:Adult Schistosoma mansoni worms rapidly degrade their endogenous glycogen stores immediately after isolation from the host. In NCTC 109 or in a diphasic culture medium the glycogen levels slowly recovered again after the initial decrease. The rapid degradation of glycogen could be prevented, even in a simple salt medi...

journal_title：Molecular and biochemical parasitology

authors： Tielens AG,van den Bergh SG

更新日期：1987-07-01 00:00:00

abstract：:Transfection has facilitated a functional analysis of transcriptional processes in the human malarial parasite Plasmodium falciparum, providing the first fascinating glimpses into the mechanisms regulating parasite development and pathogenicity. Here we review our rapidly evolving knowledge of what constitutes a promo...

journal_title：Molecular and biochemical parasitology

authors： Horrocks P,Dechering K,Lanzer M

更新日期：1998-09-15 00:00:00

abstract：:Naturally occurring sequences containing repetitive guanine motifs have the potential to form tetraplex DNA. Phytomonas serpens minicircle DNA shows some regions where one strand is composed mainly of G and T (GT regions). These regions contain several stretches of contiguous guanines. An oligonucleotide was construct...

journal_title：Molecular and biochemical parasitology

authors： Sá-Carvalho D,Traub-Cseko YM

更新日期：1995-06-01 00:00:00

abstract：:We have identified a GM2-activator protein (GM2AP) with highly unusual properties secreted by the nematode parasite Trichinella spiralis. Expression in Pichia pastoris resulted in a hyperglycosylated protein of 28 kDa, but the 18 kDa native protein was not glycosylated. The parasite GM2AP does not facilitate degradati...

journal_title：Molecular and biochemical parasitology

authors： Bruce AF,Gares MP,Selkirk ME,Gounaris K

更新日期：2006-06-01 00:00:00

abstract：:An expression vector was constructed to express foreign genes in Trypanosoma congolense. The foreign gene and a neomycin phosphotransferase (NPT) gene are flanked by glutamate and alanine rich protein (GARP) gene processing signals and their expression is driven by a ribosomal RNA gene promoter. The plasmid is not mai...

journal_title：Molecular and biochemical parasitology

authors： Downey N,Donelson JE

更新日期：1999-10-25 00:00:00

abstract：:Apicomplexan parasites utilize a peripheral membrane system called the inner membrane complex (IMC) to facilitate host cell invasion and parasite replication. We recently identified a novel family of Toxoplasma IMC Sub-compartment Proteins (ISP1/2/3) that localize to sub-domains of the IMC using a targeting mechanism ...

journal_title：Molecular and biochemical parasitology

authors： Fung C,Beck JR,Robertson SD,Gubbels MJ,Bradley PJ

更新日期：2012-08-01 00:00:00

abstract：:Apicomplexa parasites use complex cell cycles to replicate that are not well understood mechanistically. We have established a robust forward genetic strategy to identify the essential components of parasite cell division. Here we describe a novel temperature sensitive Toxoplasma strain, mutant 13-20C2, which growth a...

journal_title：Molecular and biochemical parasitology

authors： Suvorova ES,Lehmann MM,Kratzer S,White MW

更新日期：2012-01-01 00:00:00

abstract：:The mechanism controlling transcription at several telomeric expression sites for variable surface glycoprotein (VSG) genes in Trypanosoma brucei is unknown. Most VSG genes in expression sites have a region 5' of the gene lacking restriction enzyme sites. This 'barren region' is involved in recombination events which ...

journal_title：Molecular and biochemical parasitology

authors： Shah JS,Young JR,Kimmel BE,Iams KP,Williams RO

更新日期：1987-06-01 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：: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：:The nucleotide sequence of a gene encoding a 35-kDa thiol protease of the parasitic nematode Haemonchus contortus has been determined. The gene, designated AC-2, shares 97% nucleotide sequence identity and 98% amino acid identity with previously characterized AC-1 cDNAs encoding the thiol protease. The AC-2 gene spans...

journal_title：Molecular and biochemical parasitology

authors： Pratt D,Cox GN,Milhausen MJ,Boisvenue RJ

更新日期：1990-12-01 00:00:00

abstract：:Intraerythrocytic Plasmodium falciparum digests vast amounts of hemoglobin within an acidic food vacuole (FV). Four homologous aspartic proteases participate in hemoglobin degradation within the FV. Plasmepsin (PM) I and II are thought to initiate degradation of the native hemoglobin molecule. PM IV and histo-aspartic...

journal_title：Molecular and biochemical parasitology

authors： Banerjee R,Francis SE,Goldberg DE

更新日期：2003-07-01 00:00:00

abstract：:The glycine cleavage complex (GCV) is a potential source of the one carbon donor 5,10-methylene-tetrahydrofolate (5,10-CH(2)-THF) in the malaria parasite Plasmodium falciparum. One carbon (C1) donor units are necessary for amino acid and nucleotide biosynthesis, and for the initiation of mitochondrial and plastid tran...

journal_title：Molecular and biochemical parasitology

authors： Spalding MD,Allary M,Gallagher JR,Prigge ST

更新日期：2010-08-01 00:00:00