Abstract:
:Members of a serologically cross-reacting family of proteins including Ag332 and Pf11.1, megadalton proteins of schizont-infected red blood cells, and gametocytes, respectively, and Pf155-RESA, a 155-kDa protein of ring-infected red blood cells, have been reported to share amino acid repeat sequences. These repeats are rich in glutamic acid dipeptides postulated to be involved in generating serologic cross-reactivity. We report the identification and characterization of another member of this cross-reacting family, a 260-kDa glutamic acid-rich intraerythrocytic protein. Human antibodies affinity purified on the 260-kDa region of Western boots of trophozoite proteins of Plasmodium falciparum were used to screen a trophozoite-stage lambda gt11 cDNA library. A 1.8-kb clone was identified and human antibodies were affinity purified on the expressing clone. Using this affinity-purified antibody and the 1.8-kb clone, the corresponding protein, its gene, and its chromosomal location were investigated. The 260-kDa corresponding protein serologically cross-reacts with Pf155-RESA, but is the product of a different gene. The 260-kDa protein is Triton X-100 soluble and is variable in molecular weight in different isolates. Immunoprecipitation of [35S]methionine-labeled infected red blood cells indicates that the protein is synthesized throughout the intraerythrocytic cycle but is most prominent in schizonts. The protein, as has been shown previously, is not immunoprecipitated from 125I surface-labeled infected red blood cells and is thus not PfEMP1, the antigen associated with cytoadherence. Indirect fluorescent antibody studies using fixed infected red blood cells suggest that the protein is localized to the periphery of the intraerythrocytic parasite.
journal_name
Exp Parasitoljournal_title
Experimental parasitologyauthors
Barnes DA,Wollish W,Nelson RG,Leech JH,Petersen Cdoi
10.1006/expr.1995.1095subject
Has Abstractpub_date
1995-08-01 00:00:00pages
79-89issue
1eissn
0014-4894issn
1090-2449pii
S0014-4894(85)71095-8journal_volume
81pub_type
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journal_title:Experimental parasitology
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更新日期:2020-11-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
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abstract::Trophozoites and cysts of free-living Acanthamoeba castellanii present a serious risk to human health as causative agents of human diseases such as fatal granulomatous amoebic encephalitis and Acanthamoeba keratitis that is reported from various part of the world, also in Poland, with increasing frequency, particularl...
journal_title:Experimental parasitology
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journal_title:Experimental parasitology
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doi:10.1016/s0014-4894(03)00119-x
更新日期:2003-05-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章,评审
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更新日期:2021-01-12 00:00:00
abstract::This report describes a molecular method for determining in a first step the generic composition of a nematode community and in a second step, the resistance of each species to benzimidazole (BZ). We first established a polymerase chain reaction (PCR) linked to a restriction fragment length polymorphism strategy using...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1006/expr.2000.4542
更新日期:2000-08-01 00:00:00
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更新日期:2012-10-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
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abstract::Okuda, K., Esteva, M., Segura, E. L., and Bijovsky, A. T. 1999. The cytostome of Trypanosoma cruzi epimastigotes is associated with the flagellar complex. Experimental Parasitology 92, 223-231. Proliferative forms of Trypanosoma cruzi, amastigotes and epimastigotes, have a cytostome, a specialized structure formed by ...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1006/expr.1999.4419
更新日期:1999-08-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/0014-4894(85)90039-6
更新日期:1985-12-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1006/expr.1995.1075
更新日期:1995-06-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1006/expr.1994.1005
更新日期:1994-02-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2010.06.007
更新日期:2010-12-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2007.12.001
更新日期:2008-04-01 00:00:00
abstract::Benznidazole is the first-line drug used in treating Chagas disease, which is caused by the parasite Trypanosoma cruzi (T. cruzi). However, benznidazole has limited efficacy and several adverse reactions. Pentamidine is an antiprotozoal drug used in the treatment of leishmaniasis and African trypanosomiasis. In T. cru...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2016.10.007
更新日期:2016-12-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章,评审
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journal_title:Experimental parasitology
pub_type: 杂志文章
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更新日期:2007-08-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2009.10.011
更新日期:2010-09-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2015.02.004
更新日期:2015-06-01 00:00:00
abstract::Rosetting is a parasite adhesion phenotype associated with severe malaria in African children. Why parasites form rosettes is unknown, although enhanced invasion or immune evasion have been suggested as possible functions. Previous work showed that rosetting does not enhance parasite invasion under standard in vitro c...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2005.11.007
更新日期:2006-04-01 00:00:00
abstract::In the present study, we examined the effect of amphotericin B on larval stages (miracidia and primary sporocyst) of the helminth Schistosoma mansoni, the causative agent of human schistosomiasis. Amphotericin B (AmB) is a polyene macrolide that disturbs the function of the cell membrane; it is widely used as prophyla...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2009.12.024
更新日期:2010-06-01 00:00:00
abstract::The thymidine kinase gene of Herpes simplex type-1 virus was transfected into several Leishmania species to create drug-sensitive mutants. Expression of the thymidine kinase gene is not by itself harmful to Leishmania cells but it is capable of phosphorylating ganciclovir, a nucleoside analog, into a highly toxic prod...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1006/expr.1996.4115
更新日期:1997-01-01 00:00:00
abstract::The cysteine-rich C-terminal region of the merozoite surface protein-1, MSP-119, of Plasmodium falciparum has been the most promising vaccine target antigen to date, based on protective immunization studies with recombinant proteins in mice and monkey models. To be further developed as a vaccine candidate, it is essen...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1006/expr.1999.4401
更新日期:1999-05-01 00:00:00
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journal_title:Experimental parasitology
pub_type: 杂志文章
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更新日期:2021-01-01 00:00:00
abstract::Resistance and sensitivity to normal human serum (NHS) of Trypanosoma congolense, a parasite believed to cause disease in animals only, were investigated in vivo as well as in vitro. Our results indicate that like Trypanosoma brucei, T. congolense can be grouped into three different phenotypes according to its resista...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/s0014-4894(03)00032-8
更新日期:2002-10-01 00:00:00
abstract::Cutaneous lesions elicited in guinea pigs by primary and secondary feeding populations of the argasid tick, Ornithodorus tartakovskyi, were analyzed by light and electron microscopy. Small clusters of basophils appeared at primary bite sites within 24 hr of tick attachment, and by 72 hr constituted approximately 11% o...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/0014-4894(83)90058-9
更新日期:1983-10-01 00:00:00
abstract::The biochemical and morphological events which accompany lysis of Trypanosoma brucei by normal human serum have been described. The prelytic events include loss of infectivity and rapid cation shifts across the cell membrane. This is followed by cell swelling, fraying of the surface coat of the cell, loss of intracell...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/0014-4894(84)90023-7
更新日期:1984-08-01 00:00:00
abstract::Opisthorchis viverrini is the only liver fluke that has been proved to be associated with cholangiocarcinoma (CCA). However, the mechanisms by which O. viverrini participates in the carcinogenesis of CCA are still unclear. To understand the biology and host-parasite interaction related to O. viverrini infection, gene ...
journal_title:Experimental parasitology
pub_type: 杂志文章
doi:10.1016/j.exppara.2008.08.004
更新日期:2008-12-01 00:00:00