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 proteins with molecular masses of 65 and 46 kDa, whereas 93, 90 and 76 kDa proteins are observed during P. chabaudi infection. These new erythrocyte membrane associated proteins are all of parasite origin as indicated by metabolic labeling with proline and are synthesized during the ring stage of the asexual replicative cycle. Three of these proteins, the 93 kDa P. chabaudi protein and both P. berghei proteins, have been purified and the amino acid composition determined. All three are characterized by a relatively high proportion of aspartate and glutamate residues. Mono-and polyclonal antibodies were also raised against the same three purified proteins. No cross reactivity between these three proteins is observed, but one monoclonal antibody against the 65 kDa P. berghei crossreacts with a 27 kDa mouse erythrocyte protein. Immunofluorescence using the antibodies in combination with subcellular fractionation studies clearly shows that these phosphoproteins are associated with the host erythrocyte membrane and not the parasite.
journal_name
Mol Biochem Parasitoljournal_title
Molecular and biochemical parasitologyauthors
Wiser MF,Leible MB,Plitt Bdoi
10.1016/0166-6851(88)90020-5subject
Has Abstractpub_date
1988-01-01 00:00:00pages
11-21issue
1eissn
0166-6851issn
1872-9428pii
0166-6851(88)90020-5journal_volume
27pub_type
杂志文章abstract::The ADHE family of enzymes are bifunctional acetaldehyde dehydrogenase (ALDH)/alcohol dehydrogenase (ADH) enzymes that probably arose from the fusion of genes encoding separate ALDH and ADH enzymes. Here we have used the Entamoeba histolytica alcohol dehydrogenase 2 (EhADH2) enzyme as a prototype to analyze the struct...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2004.06.002
更新日期:2004-10-01 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
pub_type: 杂志文章
doi:10.1016/0166-6851(94)90169-4
更新日期:1994-12-01 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
pub_type: 杂志文章
doi:10.1016/0166-6851(88)90153-3
更新日期:1988-12-01 00:00:00
abstract::The Leishmania GP63 major surface protein gene family encodes multiple isoforms which differ predominantly in the carboxyterminal region. We have isolated 4 full-length gp63 cDNA clones derived from stationary-phase promastigote RNA of a cloned isolate of Leishmania guyanensis, a member of the braziliensis complex. Th...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(93)90107-9
更新日期:1993-12-01 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
pub_type: 杂志文章
doi:10.1016/0166-6851(94)00200-7
更新日期:1995-02-01 00:00:00
abstract::Giardia lamblia depends on glycolysis to obtain ATP, highlighting the suitability of glycolytic enzymes as targets for drug design. We studied triosephosphate isomerase from G. lamblia (GlTIM) as a potential species-specific drug target. Cysteine-reactive agents were used as probes, in order to test those regions near...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2007.10.013
更新日期:2008-02-01 00:00:00
abstract::Microsporidia are highly adapted eukaryotic intracellular parasites that infect a variety of animals. Microsporidia contain no recognisable mitochondrion, but recently have been shown to have evolved from fungi and to possess heat shock protein genes derived from mitochondria. These findings make it clear that microsp...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/s0166-6851(01)00356-5
更新日期:2001-10-01 00:00:00
abstract::When the malarial parasite Plasmodium falciparum multiplies in erythrocytes it dramatically increases uptake of essential metabolic precursors (nucleosides, nucleobases and glucose) and export of lactic acid by undefined mechanisms. The first evidence is provided here, by a detailed study in Xenopus laevis oocytes, th...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/s0166-6851(98)00024-3
更新日期:1998-05-15 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::Plasmodium falciparum invades human erythrocytes by redundant pathways. Unlike Plasmodium vivax that has one Duffy Binding-Like (DBL) receptor, P. falciparum has four members of the DBL receptor family. Furthermore, one of these DBL genes, BAEBL, has polymorphisms at four amino acids in region II; each polymorphism bi...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2009.06.006
更新日期:2009-11-01 00:00:00
abstract::The usefulness of random amplified polymorphic DNA markers (RAPD) was assayed in an attempt to discriminate among species, strains and individuals within the genus Schistosoma. Depending on the species, 40-50 arbitrary decamer oligonucleotides were used as primers to amplify total DNA by the polymerase chain reaction ...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(93)90219-n
更新日期:1993-06-01 00:00:00
abstract::Giardia lamblia undergoes surface antigenic variation. The variant-specific surface proteins (VSPs) of isolate WB are cysteine-rich, can vary dramatically in size, contain Cys-X-X-Cys motifs, and are differentially expressed. GS/M(H7) is a Giardia clone from a different isolate which expresses a VSP epitope not found ...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(92)90072-r
更新日期:1992-04-01 00:00:00
abstract::Trypanosoma brucei harbors a unique multifunctional RNA polymerase (pol) I which transcribes, in addition to ribosomal RNA genes, the gene units encoding the major cell surface antigens variant surface glycoprotein and procyclin. In consequence, this RNA pol I is recruited to three structurally different types of prom...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2006.02.023
更新日期:2006-09-01 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
pub_type: 杂志文章
doi:10.1016/0166-6851(94)00208-5
更新日期:1995-02-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2013.04.006
更新日期:2013-05-01 00:00:00
abstract::Protein kinase activities in bloodstream and procyclic forms of Trypanosoma brucei have been partially purified and characterised. Cytosolic extracts were separated on DEAE-cellulose and assayed for the ability to phosphorylate histone in the presence of Ca2+ and diacylglycerol. Five peaks of activity were identified ...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(90)90135-9
更新日期:1990-11-01 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::Pathogens of the Leishmania and Trypanosoma genera compartmentalize glycolytic and other nutritional pathways in glycosomes, unique subcellular organelles related to the peroxisomes of mammals and yeasts. Most glycosomal proteins are targeted to the glycosomes by a COOH-terminal tripeptide signal similar to the peroxi...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/s0166-6851(02)00164-0
更新日期:2002-09-01 00:00:00
abstract::A screen for Leishmania mexicana genes encoding promastigote-specific flagellar proteins resulted in isolation of genes encoding the major components of the paraflagellar rod. One of these, PFR-2, was characterized extensively. PFR-2 genes are present in the genome as a tandem array of three genes designated PFR-2A, P...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(96)02688-6
更新日期:1996-10-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2016.04.002
更新日期:2016-05-01 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
pub_type: 杂志文章
doi:10.1016/0166-6851(92)90091-w
更新日期:1992-08-01 00:00:00
abstract::Amoebiasis is spread by the ingestion of dormant Entamoeba histolytica cysts. Intervention of encystation could break the transmission cycle, thereby reducing disease burden. The model system used to study trophozoite to cyst differentiation is Entamoeba invadens. Here we describe an electroporation-based method for s...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2012.02.012
更新日期:2012-07-01 00:00:00
abstract::Tubulin genes in Trypanosoma rangeli, the only trypanosome besides T. cruzi to infect humans in America, are organized in homogeneous, alternate alpha and beta gene tandem repeats of 3.8 kb. The basic repeat was cloned, mapped and partially sequenced. In contrast to most other eukaryotes, where tubulin genes are scatt...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(89)90054-6
更新日期:1989-05-15 00:00:00
abstract::Entamoeba histolytica genomic organization and putative promoter elements appear to be distinct from both metazoan and better characterized protozoan organisms. The recent development of DNA-mediated transfection for E. histolytica enabled characterization of cis-acting promoter elements required for gene expression. ...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/s0166-6851(96)02614-x
更新日期:1996-06-01 00:00:00
abstract::The major proteolytic activity of Trypanosoma cruzi is a cathepsin L-like cysteine protease expressed in all stages of the parasite. As an initial step in identifying possible functions of this enzyme in the life cycle of T. cruzi, and examining its potential as a target for rational drug design, two fluoromethyl keto...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(93)90086-d
更新日期:1993-03-01 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
pub_type: 杂志文章
doi:10.1016/0166-6851(92)90175-j
更新日期:1992-12-01 00:00:00
abstract::Schistosomiasis remains a severe problem of public health in developing countries. Several reports show that praziquantel, the drug of choice for treating schistosomiasis, can select Schistosoma mansoni strains resistant to the drug. Thus, developing new drugs against this parasitosis is a highly desirable goal. Curcu...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2012.11.006
更新日期:2013-02-01 00:00:00
abstract::Polyacrylamide gel electrophoresis of the total RNA extracted from cultures of Plasmodium falciparum resolved two major RNA components with estimated molecular weights of 1.3 X 10(6) and 0.72 - 0.74 X 10(6). Oligo(dT)-cellulose column chromatography of the total cellular RNA indicates that more than 90% of the total r...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(81)90014-1
更新日期:1981-12-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/s0166-6851(99)00068-7
更新日期:1999-06-25 00:00:00
abstract::The removal of N-linked oligosaccharides by peptide-N4-[N-acetyl-beta-glucoseaminyl]asparagine amidase (previously known as aspartoglycosylamine amidohydrolase and abbreviated N-glycanase) from the surface of blood or insect-transmissible forms of Trypanosoma cruzi markedly increased the capacity of these organisms to...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(87)90040-5
更新日期:1987-01-15 00:00:00