Kinetoplast DNA analysis of four Trypanosoma evansi strains.

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 dyskinetoplastic mutants and other 4 kinetoplastic strains absent of maxicircles. The electrophoretic analysis of the minicircles digested with various restriction endonucleases clearly shows that all of the kinetoplastic strains lack profound minicircle heterogeneity typical of T. brucei. However, a slight restriction fragment length polymorphism could be observed with 2 enzymes (Dde I and HinfI) within the minicircle population of each cloned strain. We propose that this sequence diversity is the result of point mutations. Further analysis of the minicircles by nucleotide sequencing revealed that the 4 minicircles of T. evansi strains share extensive regions of homology with each other but only about 50% homology with other species. This homogeneity of T. evansi minicircle sequences may provide a useful tool for classification and identification.

journal_name

Mol Biochem Parasitol

authors

Ou YC,Giroud C,Baltz T

doi

10.1016/0166-6851(91)90203-i

subject

Has Abstract

pub_date

1991-05-01 00:00:00

pages

97-102

issue

1

eissn

0166-6851

issn

1872-9428

pii

0166-6851(91)90203-I

journal_volume

46

pub_type

杂志文章
  • Differential toxicity of ricin and diphtheria toxin for bloodstream forms of Trypanosoma brucei.

    abstract::The cytotoxicity of ricin and diphtheria toxin was studied in culture-adapted bloodstream forms of Trypanosoma brucei. Although ricin is endocytosed at a rate comparable to that of other internalized macromolecules, it is nontoxic to bloodstream-form trypanosomes. The resistance lies partly in low susceptibility of th...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/s0166-6851(97)00162-x

    authors: Scory S,Steverding D

    更新日期:1997-12-01 00:00:00

  • Molecular cloning, genomic structure and localization in a blood stage antigen of Plasmodium falciparum characterized by a serine stretch.

    abstract::Two short DNA segments were isolated by screening of a lambda gt11 library from Plasmodium falciparum schizont cDNA with an antiserum against the 140 kDa protein, which confers protective immunity to monkeys. The segments were used to identify a genomic fragment which carries the entire coding sequence for a protein o...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/0166-6851(89)90131-x

    authors: Knapp B,Hundt E,Nau U,Küpper HA

    更新日期:1989-01-01 00:00:00

  • Isolation of putative cysteine protease genes of Ostertagia ostertagi.

    abstract::Recombinant phage containing putative Ostertagia ostertagi cysteine protease genes have been isolated from a lambda EMBL-3:genomic DNA library using a Haemonchus contortus cathepsin B-like cysteine protease cDNA as hybridization probe. Restriction enzyme maps of the phages suggest that they identify at least 3 genes, ...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/0166-6851(92)90152-a

    authors: Pratt D,Boisvenue RJ,Cox GN

    更新日期:1992-11-01 00:00:00

  • Purification and characterization of gamma-glutamyl transpeptidase from Ascaris suum.

    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

    pub_type: 杂志文章

    doi:10.1016/0166-6851(96)02573-x

    authors: Hussein AS,Walter RD

    更新日期:1996-04-01 00:00:00

  • Comparison of two methods for transformation of Plasmodium knowlesi: Direct schizont electroporation and spontaneous plasmid uptake from plasmid-loaded red blood cells.

    abstract::Human infections from Plasmodium knowlesi present challenges to malaria control in Southeast Asia. P. knowlesi also offers a model for other human malaria species including Plasmodium vivax. P. knowlesi parasites can be cultivated in the laboratory, and their transformation is standardly performed by direct electropor...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/j.molbiopara.2017.10.001

    authors: Moraes Barros RR,Gibson TJ,Kite WA,Sá JM,Wellems TE

    更新日期:2017-12-01 00:00:00

  • Amplification and sequencing of genomic DNA fragments encoding cysteine proteases from protozoan parasites.

    abstract::Cysteine protease gene fragments from three protozoan parasites Trypanosoma cruzi, Trypanosoma brucei, and Entamoeba histolytica were amplified by the polymerase chain reaction (PCR) from genomic DNA using degenerate oligonucleotide primers. The primers used for the amplification were designed based upon amino acid se...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/0166-6851(90)90002-4

    authors: Eakin AE,Bouvier J,Sakanari JA,Craik CS,McKerrow JH

    更新日期:1990-02-01 00:00:00

  • L-myo-Inositol 1-phosphate synthase from Entamoeba histolytica.

    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

    pub_type: 杂志文章

    doi:10.1016/s0166-6851(98)00147-9

    authors: Lohia A,Hait NC,Majumder AL

    更新日期:1999-01-05 00:00:00

  • Regulation of hsp70 expression in Trypanosoma cruzi by temperature and growth phase.

    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

    pub_type: 杂志文章

    doi:10.1016/0166-6851(92)90022-c

    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

  • A role for tertiary structure in the generation of antigenic diversity and molecular association of the Tams1 polypeptide in Theileria annulata.

    abstract::The major merozoite-piroplasm surface antigen (mMPSA) of Theileria annulata, Tams1, is known to be antigenically diverse. The possession of variable N-linked glycosylation sites and removal of monoclonal antibody 5E1 reactivity by mild periodate treatment suggested, previously, that divergent epitopes may be conferred...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/s0166-6851(02)00078-6

    authors: Katzer F,McKellar S,Ferguson MA,d'Oliveira C,Shiels BR

    更新日期:2002-06-01 00:00:00

  • Efficient extraction and translation of Plasmodium falciparum messenger RNA.

    abstract::A convenient method was employed for the efficient extraction of total RNA from Plasmodium falciparum. By depleting the total RNA of tRNA, it was shown that P. falciparum or P. lophurae tRNAs markedly stimulate the translation of P. falciparum mRNA in the rabbit reticulocyte cell-free system. Analysis of the cell-free...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/0166-6851(82)90023-8

    authors: Wallach M

    更新日期:1982-12-01 00:00:00

  • Translation initiation factors GleIF4E2 and GleIF4A can interact directly with the components of the pre-initiation complex to facilitate translation initiation in Giardia lamblia.

    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

    doi:10.1016/j.molbiopara.2020.111258

    authors: Adedoja AN,McMahan T,Neal JP,Hamal Dhakal S,Jois S,Romo D,Hull K,Garlapati S

    更新日期:2020-03-01 00:00:00

  • The complete sequence of a Plasmodium malariae SSUrRNA gene and its comparison to other plasmodial SSUrRNA genes.

    abstract::A gene encoding the small subunit rRNA (SSUrRNA) has been isolated from the human parasite, Plasmodium malariae. The gene has been sequenced. It contains conserved and variable regions which conform to patterns established for other eukaryotic SSUrRNA genes. Comparisons with other SSUrRNA genes from Plasmodium species...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/0166-6851(91)90096-o

    authors: Goman M,Mons B,Scaife J

    更新日期:1991-04-01 00:00:00

  • Structural studies on Plasmodium vivax merozoite surface protein-1.

    abstract::Plasmodium vivax infection is the second most common cause of malaria throughout the world. Like other Plasmodium species, P. vivax has a large protein complex, MSP-1, located on the merozoite surface. The C-terminal MSP-1 sub-unit, MSP-1(42), is cleaved during red blood cell invasion, causing the majority of the comp...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/j.molbiopara.2007.01.015

    authors: Babon JJ,Morgan WD,Kelly G,Eccleston JF,Feeney J,Holder AA

    更新日期:2007-05-01 00:00:00

  • Tests of cytoplasmic RNA interference (RNAi) and construction of a tetracycline-inducible T7 promoter system in Trypanosoma cruzi.

    abstract::The technique of RNA interference (RNAi) is exceedingly useful for knocking down the expression of a specific mRNA in African trypanosomes and other organisms for the purpose of examining the function of its gene. However, when we attempted to apply RNAi in the Latin American trypanosome, Trypanosoma cruzi, to diminis...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/j.molbiopara.2003.10.005

    authors: DaRocha WD,Otsu K,Teixeira SM,Donelson JE

    更新日期:2004-02-01 00:00:00

  • Involvement of lysosomes in the uptake of macromolecular material by bloodstream forms of Trypanosoma brucei.

    abstract::To investigate whether the lysosomes of Trypanosoma brucei are capable of uptake of macromolecules after internalization by the cell, we used Triton WR-1339, a non-digestible macromolecular compound, which is known to cause a marked decrease in the density of hepatic lysosomes due to massive intralysosomal storage. In...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/0166-6851(82)90077-9

    authors: Opperdoes FR,Van Roy J

    更新日期:1982-09-01 00:00:00

  • Characterization of Leishmania major phosphatidylethanolamine methyltransferases LmjPEM1 and LmjPEM2 and their inhibition by choline analogs.

    abstract::Phosphatidylcholine (PC) is the most abundant phospholipid in the membranes of the human parasite Leishmania. It is synthesized via two metabolic routes, the de novo pathway that starts with the uptake of choline, and the threefold methylation of phosphatidylethanolamine. Choline was shown to be dispensable for Leishm...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/j.molbiopara.2014.08.005

    authors: Bibis SS,Dahlstrom K,Zhu T,Zufferey R

    更新日期:2014-09-01 00:00:00

  • Identification of six Trypanosoma cruzi lineages by sequence-characterised amplified region markers.

    abstract::Six discrete phylogenetic lineages were recently identified in Trypanosoma cruzi, on the basis of multilocus enzyme electrophoresis and random amplified polymorphic DNA (RAPD) characterisation. The objective of the present study was to develop specific PCR-based markers for the identification of each of the six lineag...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/s0166-6851(00)00302-9

    authors: Brisse S,Dujardin JC,Tibayrenc M

    更新日期:2000-11-01 00:00:00

  • Protein variation in clones of Plasmodium falciparum detected by two dimensional electrophoresis.

    abstract::Two dimensional electrophoresis has been used to examine protein variation in clones of two Plasmodium falciparum isolates. Variant forms of 12 proteins were detected. Five genetically distinct parasite types were identified in one isolate, and two in the second isolate. Examination of uncloned parasites using this te...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/0166-6851(85)90085-4

    authors: Fenton B,Walker A,Walliker D

    更新日期:1985-08-01 00:00:00

  • Dominant lethality and insect population control.

    abstract::Recent advances in insect genetic engineering have opened up new possibilities in the genetic control of insect vectors of human diseases. We outline the current state of the sterile insect technique and show how the use of engineered dominant lethals can greatly increase the effectiveness of this approach. We conside...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章,评审

    doi:10.1016/s0166-6851(02)00040-3

    authors: Alphey L,Andreasen M

    更新日期:2002-05-01 00:00:00

  • An evaluation of different methods for labelling the surface of the filarial nematode Brugia pahangi with 125iodine.

    abstract::The specificity of a range of 125I labelling techniques (Chloramine T, Iodogen, Bolton and Hunter reagent, lactoperoxidase and iodosulfanilic acid) to the surface of the filarial nematode Brugia pahangi was evaluated by autoradiography of sections of labelled worms and of dried SDS-polyacrylamide gels following electr...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/0166-6851(85)90091-x

    authors: Marshall E,Howells RE

    更新日期:1985-06-01 00:00:00

  • Gender biased differential alternative splicing patterns of the transcriptional cofactor CA150 gene in Schistosoma mansoni.

    abstract::The complex molecular systems involved in the process of sex-differentiation and fertility in Schistosoma mansoni have not yet been completely described. Using a 4608-element cDNA microarray, we have now determined 90 and 139 genes with significantly (q-value

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/j.molbiopara.2006.07.002

    authors: DeMarco R,Oliveira KC,Venancio TM,Verjovski-Almeida S

    更新日期:2006-12-01 00:00:00

  • Antigenic variation and cytoadhesion in Babesia bovis and Plasmodium falciparum: different logics achieve the same goal.

    abstract::Babesia bovis is a protozoal hemoparasite of cattle which behaves in certain crucial respects like Plasmodium falciparum, despite being phylogenetically distant and having many differences in its life cycle. The shared behavioral attributes of rapid antigenic variation and cytoadhesion/sequestration are thought to con...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章,评审

    doi:10.1016/j.molbiopara.2003.09.012

    authors: Allred DR,Al-Khedery B

    更新日期:2004-03-01 00:00:00

  • An exported protein of Plasmodium falciparum is synthesized as an integral membrane protein.

    abstract::Exp-1 is an antigen of Plasmodium falciparum which is transported from the parasite cell to the membrane of the parasitophorous vacuole and to membranous compartments in the erythrocyte. To investigate how this protein is transported, we studied the synthesis and membrane translocation of exp-1 in a cell-free system. ...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/0166-6851(91)90208-n

    authors: Günther K,Tümmler M,Arnold HH,Ridley R,Goman M,Scaife JG,Lingelbach K

    更新日期:1991-05-01 00:00:00

  • The Haemonchus contortus UNC-49B subunit possesses the residues required for GABA sensitivity in homomeric and heteromeric channels.

    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

    authors: Accardi MV,Forrester SG

    更新日期:2011-07-01 00:00:00

  • Transgenic Plasmodium berghei sporozoites expressing beta-galactosidase for quantification of sporozoite transmission.

    abstract::Malaria transmission occurs during a blood-meal of an infected Anopheles mosquito. Visualization and quantification of sporozoites along the journey from the mosquito midgut, where they develop, to the vertebrate liver, their final target organ, is important for understanding many aspects of sporozoite biology. Here w...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/j.molbiopara.2005.10.015

    authors: Engelmann S,Sinnis P,Matuschewski K

    更新日期:2006-03-01 00:00:00

  • Polymorphism of the alleles of the merozoite surface antigens MSA1 and MSA2 in Plasmodium falciparum wild isolates from Colombia.

    abstract::The degree of polymorphism and the allelic distribution of 2 major Plasmodium falciparum merozoite surface antigens (MSA1 and MSA2) have been analysed in clinical isolates from Colombia. DNA was prepared directly from patients' blood and used in PCR reactions to amplify block 2 of MSA1 and the central region from MSA2...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/0166-6851(91)90070-m

    authors: Snewin VA,Herrera M,Sanchez G,Scherf A,Langsley G,Herrera S

    更新日期:1991-12-01 00:00:00

  • Developmental regulation of protein synthesis in schistosomes.

    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

    pub_type: 杂志文章

    doi:10.1016/0166-6851(92)90070-z

    authors: Blanton RE,Licate LS

    更新日期:1992-04-01 00:00:00

  • Functional characterisation of a nematode secreted GM2-activator protein.

    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

    pub_type: 杂志文章

    doi:10.1016/j.molbiopara.2006.02.014

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

    更新日期:2006-06-01 00:00:00

  • In vitro selection of halofantrine resistance in Plasmodium falciparum is not associated with increased expression of Pgh1.

    abstract::Recent investigations into quinoline and phenanthrene methanol resistance in Plasmodium falciparum have described a linkage between amplification of the mdr homologue pfmdr1 and decreased susceptibility to mefloquine (MQ) and halofantrine (HF). We have examined the current theories on cross-resistance patterns and pfm...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/s0166-6851(96)02746-6

    authors: Ritchie GY,Mungthin M,Green JE,Bray PG,Hawley SR,Ward SA

    更新日期:1996-12-02 00:00:00

  • Sequencing and characterization of an Echinococcus multilocularis DNA probe and its use in the polymerase chain reaction.

    abstract::The nucleotide sequence of the cloned Echinococcus multilocularis DNA probe pAL1 was determined in order to simplify and improve the sensitivity of a diagnostic assay through the application of the polymerase chain reaction (PCR). The insert-specific oligonucleotides BG1 and BG2 define a 2.6-kb fragment in the genomic...

    journal_title:Molecular and biochemical parasitology

    pub_type: 杂志文章

    doi:10.1016/0166-6851(91)90004-p

    authors: Gottstein B,Mowatt MR

    更新日期:1991-02-01 00:00:00