Abstract:
:Genomic structure has been determined for a gene encoding a host-protective antigen of the parasitic platyhelminth Taenia ovis. An incomplete cDNA, known as 45W, encodes the protective antigen. Southern hybridisation experiments using 45W cDNA as a probe, revealed that the 45W gene was a member of a multigene family. Differential Southern hybridisation and rapid amplification of cDNA end (RACE) experiments were used to characterise the related genes, allowing the full-length coding region of the 45W encoded antigen to be determined. The gene family comprises a minimum of four members per haploid genome with each member showing varying degrees of 5' and 3' homology with respect to the 45W cDNA. A close homologue of the 45W gene, designated 45S, differed from 45W at 11 of 985 nt comprising the full-length mRNA. Sequencing of several independent RACE products for both 45W and 45S identified a cDNA which may be a product of homologous recombination between these genes, suggesting that the two genes may be alleles. Homologous recombination in genes which encode a host protective antigen such as 45W would provide a mechanism by which antigenic variants could arise.
journal_name
Mol Biochem Parasitoljournal_title
Molecular and biochemical parasitologyauthors
Waterkeyn JG,Lightowlers MW,Coppel R,Cowman AFdoi
10.1016/0166-6851(94)00104-usubject
Has Abstractpub_date
1995-07-01 00:00:00pages
123-31issue
1-2eissn
0166-6851issn
1872-9428pii
0166-6851(94)00104-Ujournal_volume
73pub_type
杂志文章abstract::Telomeric DNA of trypanosomatids possesses a modified thymine base, called base J, that is synthesized in a two-step process; the base is hydroxylated by a thymidine hydroxylase forming hydroxymethyluracil (hmU) and a glucose moiety is then attached by the J-associated glucosyltransferase (JGT). To examine the importa...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:2015-12-01 00:00:00
abstract::The capacity for rapid localization of epitope-tagged or fluorescent fusion proteins in cells is an important tool for biological discovery and functional analysis. For Trypanosoma cruzi, the protozoan parasite that causes human Chagas disease, visualization of ectopically-expressed proteins in the clinically-relevant...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:2014-12-01 00:00:00
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
更新日期:1992-04-01 00:00:00
abstract::Repetitive DNA sequences of the Leishmania donovani genome have been identified by screening a recombinant DNA library made by cloning sheared genomic DNA into the vector pAT153. Bacterial clones containing a highly repetitive DNA sequence have been isolated. DNA sequencing has shown that this sequence is composed of ...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(88)90114-4
更新日期:1988-05-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2009.06.006
更新日期:2009-11-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(87)90156-3
更新日期:1987-07-01 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)00057-2
更新日期:1999-05-25 00:00:00
abstract::A polyprotein composed of multiple units arranged in direct tandem arrays has been identified in parasitic and free living nematodes. Analysis of previously cloned units from the Dirofilaria immitis polyprotein antigen (DiPA) indicated the units were nearly identical but here we demonstrate that they segregate into tw...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(96)02721-1
更新日期:1996-11-12 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2009.07.001
更新日期:2009-11-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/s0166-6851(96)02746-6
更新日期:1996-12-02 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...
journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(95)02503-0
更新日期:1995-12-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:2008-05-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2012.04.006
更新日期:2012-07-01 00:00:00
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pub_type: 杂志文章
doi:10.1016/0166-6851(93)90172-t
更新日期:1993-11-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/s0166-6851(96)02765-x
更新日期:1996-12-20 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/j.molbiopara.2010.03.020
更新日期:2010-08-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
doi:10.1016/0166-6851(86)90102-7
更新日期:1986-09-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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journal_title:Molecular and biochemical parasitology
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更新日期:2011-01-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:2001-03-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:1989-06-01 00:00:00
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journal_title:Molecular and biochemical parasitology
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:2016-05-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:2007-10-01 00:00:00
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journal_title:Molecular and biochemical parasitology
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更新日期:2001-12-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:2003-09-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:1990-11-01 00:00:00
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journal_title:Molecular and biochemical parasitology
pub_type: 杂志文章
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更新日期:2009-11-01 00:00:00