Abstract:
:The number and expression of some of the large ribosomal RNA (rRNA) gene classes present in the human malaria parasite Plasmodium falciparum was determined. Southern blot analyses, using the 5.8S rRNA coding region as a marker, indicate that the P. falciparum genome contains at least 5 distinct subclasses of large rRNA genes. Dideoxy sequencing of the 5.8S rRNA domain and Northern blot analyses demonstrate that only one subclass is transcribed during the parasite's asexual erythrocytic life cycle.
journal_name
Mol Biochem Parasitoljournal_title
Molecular and biochemical parasitologyauthors
Shippen-Lentz D,Afroze T,Vezza ACdoi
10.1016/0166-6851(90)90211-4subject
Has Abstractpub_date
1990-01-01 00:00:00pages
113-20issue
1eissn
0166-6851issn
1872-9428pii
0166-6851(90)90211-4journal_volume
38pub_type
杂志文章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
pub_type: 杂志文章
doi:10.1016/0166-6851(93)90182-w
更新日期:1993-11-01 00:00:00
abstract::Hco-UNC-49 is a GABA receptor from the parasitic nematode Haemonchus contortus that has a relatively low overall sequence similarity to vertebrate GABA receptors but is very similar to the UNC-49 receptor found in the free living nematode Caenorhabditis elegans. While the nematode receptors do share >80% sequence simi...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2011.04.002
更新日期:2011-07-01 00:00:00
abstract::Entamoeba histolytica is responsible for amoebic colitis and liver abscess in humans. Entamoeba dispar is a closely related, morphologically indistinguishable nonpathogenic species. The hexokinase (ATP:D-hexose 6-phosphotransferase, EC 2.7.1.1) isoenzyme patterns distinguish the pathogenic and nonpathogenic species. B...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/s0166-6851(99)00164-4
更新日期:2000-01-05 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
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2010.11.009
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abstract::The body's defense against schistosome infection can take many forms. For example, upon developing acute schistosomiasis, patients often have fever coinciding with larval maturation, migration and early oviposition. As the infection becomes established, the parasite comes under oxidative stress generated by the host i...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2008.08.004
更新日期:2008-12-01 00:00:00
abstract::Conserved amongst all eukaryotes is a family of mitochondrial carrier proteins (SLC25A) responsible for the import of various solutes across the inner mitochondrial membrane. We previously reported that the human parasite Trypanosoma brucei possesses 26 SLC25A proteins (TbMCPs) amongst which two, TbMCP11 and TbMCP8, w...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2020.111275
更新日期:2020-05-01 00:00:00
abstract::Strongyloides stercoralis and S. ratti are intestinal parasitic nematodes infecting rats and humans, respectively. Both present extraordinary life cycles comprising a free-living generation in addition to parasitic stages. In search of molecules possibly involved in parasite-host interaction, we performed mass spectro...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2009.07.007
更新日期:2009-12-01 00:00:00
abstract::Antigenic switching in Trypanosoma brucei can occur either by the production of a telomeric copy of a variant surface glycoprotein (VSG) gene through a gene conversion mechanism or by the nonduplicative activation of a telomeric VSG gene. The 5 VSG gene telomeric copy that is expressed in IsTaR 1 variant antigenic typ...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:1985-06-01 00:00:00
abstract::Cryptosporidium spp. are intracellular apicomplexan parasites that cause outbreaks of waterborne diarrheal disease worldwide. Previous studies had identified a Cryptosporidium parvum sporozoite antigen, CpMuc4, that appeared to be involved in attachment and invasion of the parasite into intestinal epithelial cells. Cp...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:2014-02-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(92)90039-m
更新日期:1992-05-01 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
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2004.05.008
更新日期:2004-09-01 00:00:00
abstract::The genus Cryptosporidium includes several species of intestinal protozoan parasites which multiply in intestinal epithelial cells. The impact of this infection on the transcriptome of cultured host cells was investigated using DNA microarray hybridizations. The expression of 14 genes found to be consistently up- or d...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2009.07.004
更新日期:2009-11-01 00:00:00
abstract::ATP-binding cassette transporters (ABC transporters) are essential components of normal cellular physiological machinery in all eukaryotic and prokaryotic species, including parasites. Some ABC transporters, e.g., P-glycoproteins, are involved in the efflux of toxins and xenobiotics from the cell. At present, nothing ...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2017.07.001
更新日期:2017-09-01 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
pub_type: 杂志文章
doi:10.1016/0166-6851(81)90061-x
更新日期:1981-12-31 00:00:00
abstract::The (Ca(2+)-Mg2+)ATPase activity in microsomes of Schistosoma mansoni is fully inhibited by vanadate (I50 = 2.5 microM). 45Ca2+ is accumulated within microsomal vesicles in an ATP-dependent process that is enhanced 5-fold in the presence of 40 mM phosphate. Accumulated 45Ca2+ is rapidly released by 5 microM of the Ca2...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(92)90049-p
更新日期:1992-06-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(84)90061-6
更新日期:1984-04-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2020.111334
更新日期:2020-11-01 00:00:00
abstract::A wide range of secondary biological functions have been documented for eukaryotic aminoacyl-tRNA synthetases including roles in transcriptional regulation, mitochondrial RNA splicing, cell growth, and chemokine-like activities. The asparaginyl-tRNA synthetase (AsnRS) of the filarial nematode, Brugia malayi, is a high...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:2012-09-01 00:00:00
abstract::Trypanosoma brucei Tim17(TbTim17), the single member of the Tim17/23/22 protein family, is an essential component of the translocase of the mitochondrial inner membrane (TIM). In spite of the conserved secondary structure, the primary sequence of TbTim17, particularly the N-terminal hydrophilic region, is significantl...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2017.09.003
更新日期:2017-12-01 00:00:00
abstract::Trypanosoma brucei is a unicellular parasite that is transmitted from one mammalian host to the next by tsetse flies. The expression of many trypanosome genes is regulated during the life cycle but there is no evidence for developmental control of transcription by RNA polymerase II. T. brucei expresses at least two he...
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更新日期:1995-12-01 00:00:00
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pub_type: 杂志文章
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更新日期:1999-01-05 00:00:00
abstract::Trypanosoma cruzi attaches and invades a large variety of mammalian cells by receptor-mediated interactions, one of them involving the binding of parasite trans-sialidase to host sialyl receptors. Three proteoglycan-deficient mutants of Chinese hamster ovary (CHO) cells were used to probe the role of host heparin and ...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(94)90116-3
更新日期:1994-05-01 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
pub_type: 杂志文章
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更新日期:2020-03-01 00:00:00
abstract::During intracellular development of the malarial parasite numerous membranous vesicles appear in the infected erythrocyte cytoplasm between the parasitophorous vacuolar membrane (PVM) and the erythrocyte plasma membrane. In this study we describe the characterization of a monoclonal antibody which recognizes two major...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:1998-03-15 00:00:00
abstract::Benznidazole is the main drug used to treat Trypanosoma cruzi infections. However, frequent instances of treatment failure have been reported. To better understand potential resistance mechanisms, we analysed three clones isolated from a single parasite population that had undergone benznidazole-selection. These clone...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:2014-01-01 00:00:00
abstract::Heartworm disease caused by Dirofilaria immitis affects canine and feline hosts. Moreover, the parasite can infect humans, causing pulmonary dirofilariosis. Most affected dogs have patent infections with circulating microfilariae in peripheral blood, although infected dogs sometimes develop occult infections character...
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pub_type: 杂志文章
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更新日期:2009-08-01 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
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更新日期:2007-01-01 00:00:00
abstract::The livers of chickens maintained on a diet containing an effective in vivo level (70 ppm) of arprinocid, an anticoccidial agent, were found to contain 0.64 ppm of this drug and 0.33 ppm of a metabolite, arprinocid-1-N-oxide. When arprinocid was tested against Eimeria tenella in cultures of chick kidney epithelial cel...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:1980-10-01 00:00:00
abstract::Cystic echinococcosis in humans and livestock animals is caused by infection with the cestode parasite Echinococcus granulosus. A number of genotypes of the parasite (designated G1-G10) are known to exist, with the genotype cluster G1-G3 and genotype G6 being responsible for the majority of humans infections. A recomb...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2012.02.005
更新日期:2012-06-01 00:00:00
abstract::Proteins in malaria parasites (Plasmodium falciparum) isolated from a patient in Thailand before treatment, and after recrudescence of infection subsequent to mefloquine treatment, were compared by two dimensional polyacrylamide gel electrophoresis (2D-PAGE) analysis. Nine 'pre-treatment' and six 'recrudescent' clones...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(87)90151-4
更新日期:1987-03-01 00:00:00