Download or read book Plasmodium Falciparum Protein Exported in Erythrocyte and Mechanism Resistance to Malaria written by Neyder Contreras-Puentes and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Malaria is a tropical disease of parasitic origin transmitted by the Anopheles mosquito, caused by the protozoan of the genus Plasmodium. Around miles of people worldwide affected by disease, have been related the endemic development of genetic alterations, called erythrocyte polymorphisms. These erythrocyte polymorphisms have become tools for resistance against malaria, where they have had an impact on the appearance of hemoglobinopathies, enzymatic alterations in erythrocytes, and modifications in the structure of erythrocytes related to membrane proteins. These sections address a detailed approach to the resistance mechanisms involved against the development of P. falciparum and develop a complete development of the principles of molecular principles that attempt to explain the functioning of these biochemical mechanisms and the development of the parasite.
Download or read book Transport and Trafficking in the Malaria Infected Erythrocyte written by Gregory R. Bock and published by John Wiley & Sons. This book was released on 2008-04-30 with total page 304 pages. Available in PDF, EPUB and Kindle. Book excerpt: There is an urgent need to uncover new therapies that will protect against malaria, as the parasite becomes increasingly resistant to available drugs and this book offers insights into three interrelated aspects of the malaria-infected erythrocyte: * The transport of solutes into and out of the infected cell and the use of specific trafficking pathways in drug targeting * The traffic of proteins produced by the intracellular parasite as an essential process for the biogenesis of transport systems. * The relationship between the transport of drugs into the infected cell and the mode of drug action and drug resistance.
Download or read book Malaria written by Institute of Medicine and published by National Academies Press. This book was released on 1991-02-01 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: Malaria is making a dramatic comeback in the world. The disease is the foremost health challenge in Africa south of the Sahara, and people traveling to malarious areas are at increased risk of malaria-related sickness and death. This book examines the prospects for bringing malaria under control, with specific recommendations for U.S. policy, directions for research and program funding, and appropriate roles for federal and international agencies and the medical and public health communities. The volume reports on the current status of malaria research, prevention, and control efforts worldwide. The authors present study results and commentary on the: Nature, clinical manifestations, diagnosis, and epidemiology of malaria. Biology of the malaria parasite and its vector. Prospects for developing malaria vaccines and improved treatments. Economic, social, and behavioral factors in malaria control.
Download or read book World Malaria Report 2016 written by World Health Organization and published by World Health Organization. This book was released on 2017-05-09 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The World Malaria Report 2016 summarizes information received from malaria-endemic countries and other sources and updates the analyses presented in the 2015 report. The World Malaria Report is WHO's flagship malaria publication released each year in December. It assesses global and regional malaria trends, highlights progress towards global targets, and describes opportunities and challenges in controling and eliminating the disease. Most of the data presented in this report is for 2015.
Download or read book An Alternative Secretory Pathway in the Malaria Parasite Plasmodium falciparum written by Thuvaraka Thavayogarajah and published by GRIN Verlag. This book was released on 2017-08-31 with total page 159 pages. Available in PDF, EPUB and Kindle. Book excerpt: Doctoral Thesis / Dissertation from the year 2014 in the subject Biology - Diseases, Health, Nutrition, grade: 1.3, University of Marburg (European virtual Institute for Malaria Research), language: English, abstract: This study focuses on the discovery of an alternative secretory pathway to the ER/Golgi route in the malaria parasite P. falciparum in infected RBCs. Two proteins appeared to be promising candidates of an alternative secretory pathway: the PfADP-ribosylation factor 1 (ARF1) and the Pfadenylate kinase 2 (AK2). Both proteins contained an N-myristoylation site at their N-terminus, which is indicative for N-myristoylation. N-myristoylation is a co-translational modification of a protein, whereby a fatty acid (myristate) is irreversibly attached to the glycine residue at the N-terminus of a protein via the PfN-myristoyltransferase (NMT). A preceding proteomic analysis of the parasitophorous vacuole and a reporter construct study proposed for both PfARF1 (determined by a proteomic study) and PfAK2 (determined by a reporter construct study) PV localization although both proteins lacked a signal peptide. That’s why it was hypothesized whether or not N-myristoylation would drive protein secretion across the parasite plasma membrane (PPM). The subcellular localization of the PfARF1/GFP parasites and the PfAK2/GFP parasites, respectively, were analyzed via epifluorescence microscopy and biochemical methods. In parallel, another batch of reporter constructs were generated and analyzed, where the N-myristoylation site of PfARF1 (this study) and PfAK2 (Ma et al., 2012), respectively, was removed (PfARF1G2A/GFP and PfAK2G2A/GFP). Live cell imaging showed that the fusion protein ARF1/GFP was localized as dot-like structures in the parasite. In contrast, the phenotype of the fusion protein of the PfARF1G2A/GFP parasites showed an evenly distributed signal in the parasite cytosol. Further analysis of the subcellular localization of the PfARF1 strongly supports its localization to compartments of the early secretory pathway of the parasite, but no localization in the PV. In contrast, the fusion protein PfAK2/GFP localized to a ring-like structure around the parasite indicating PV localization. The PfAK2G2A/GFP parasites showed a cytosolic localization of the fusion protein (Ma et al., 2012). Biochemical analyses revaled that the fusion protein PfAK2/GFP was secreted into the PV when the N-myristoylation site was present. Furthermore, it could be shown that the N-terminus of the PfAK2 protein is sufficient for parasite plasma membrane targeting, stable membrane anchoring and subsequent protein translocation across the PPM.
Download or read book Molecular Mechanisms of Protein Export by the Malaria Parasite Plasmodium Falciparum written by Bianca Bana and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book World Malaria Report 2019 written by World Health Organization and published by . This book was released on 2019-08-28 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: The World Malaria Report 2019 provides a comprehensive update on global and regional malaria data and trends. The report tracks investments in malaria programs and research as well as progress across all intervention areas: prevention, diagnosis, treatment, elimination, and surveillance. It also includes dedicated chapters on the consequences of malaria on maternal infant and child health the "High Burden to High Impact" approach as well as biological threats to the fight against malaria. The 2019 report is based on information received from more than 80 countries and areas with ongoing malaria transmission. This information is supplemented by data from national household surveys and databases held by other organizations.
Download or read book Identification of Binding Partners of a Novel P Falciparum Exported Protein written by Mónica Adriana Zapata and published by . This book was released on 2009 with total page 98 pages. Available in PDF, EPUB and Kindle. Book excerpt: Plasmodium falciparum is the causative agent of the most severe form of malaria. This parasite drastically modifies its host cell, the erythrocyte, to create a hospitable environment for its growth and reproduction. In order for these modifications to occur, the parasite secretes proteins into the erythrocyte. While the secretion machinery is still unknown, many secreted proteins have been found to have a hydrophobic signal sequence and a novel host-targeting signal downstream of the hydrophobic sequence. A novel P. falciparum protein has been shown to be secreted from the parasitophorous vacuole, yet it lacks both a hydrophobic signal sequence and a host-targeting signal. It was hypothesized that this protein, Pfl2110c, must interact with other proteins as it migrates into the erythrocyte. Using immunofluorescence assays and co-immunoprecipitation experiments, I found that Pfl2110c interacts with several parasite proteins as well as with the erythrocyte cytoskeleton. Therefore, Pfl2110c was renamed skeleton-binding protein 2 (SBP-2).System requirements: World Wide Web browser, and PDF reader.
Download or read book Using New Genetic Tools to Elucidate the Importance of Exported Proteins in Intra erythrocytic Survival of the Malaria Parasite Plasmodium Falciparum written by Mathias Diehl and published by . This book was released on 2019* with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Elucidating the Function of Exported Proteins Important for the Survival of the Malaria Parasite Plasmodium Falciparum During Its Intra erythrocytic Development written by Ardin Marius Ouayoue Noutong and published by . This book was released on 2021* with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Automated Structural Annotation of the Malaria Proteome and Identification of Candidate Proteins for Modelling and Crystallization Studies written by Yolandi Joubert and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Malaria is the cause of over one million deaths per year, primarily in African children. The parasite responsible for the most virulent form of malaria, is Plasmodium falciparum. Protein structure plays a pivotal role in elucidating mechanisms of parasite functioning and resistance to anti-malarial drugs. Protein structure furthermore aids the determination of protein function, which can together with the structure be used to identify novel drug targets in the parasite. However, various structural features in P. falciparum proteins complicate the experimental determination of protein three dimensional structures. Furthermore, the presence of parasite-specific inserts results in reduced similarity of these proteins to orthologous proteins with experimentally determined structures. The lack of solved structures in the malaria parasite, together with limited similarities to proteins in the Protein Data Bank, necessitate genome-scale structural annotation of P. falciparum proteins. Additionally, the annotation of a range of structural features facilitates the identification of suitable targets for structural studies. An integrated structural annotation system was constructed and applied to all the predicted proteins in P. falciparum, Plasmodium vivax and Plasmodium yoelii. Similarity searches against the PDB, Pfam, Superfamily, PROSITE and PRINTS were included. In addition, the following predictions were made for the P. falciparum proteins: secondary structure, transmembrane helices, protein disorder, low complexity, coiled-coils and small molecule interactions. P. falciparum protein-protein interactions and proteins exported to the RBC were annotated from literature. Finally, a selection of proteins were threaded through a library of SCOP folds. All the results are stored in a relational PostgreSQL database and can be viewed through a web interface (http://deepthought.bi.up.ac.za:8080/Annotation). In order to select groups of proteins which fulfill certain criteria with regard to structural and functional features, a query tool was constructed. Using this tool, criteria regarding the presence or absence of all the predicted features can be specified. Analysis of the results obtained revealed that P. falciparum protein-interacting proteins contain a higher percentage of predicted disordered residues than non-interacting proteins. Proteins interacting with 10 or more proteins have a disordered content concentrated in the range of 60-100%, while the disorder distribution for proteins having only one interacting partner, was more evenly spread. Comparisons of structural and sequence features between the three species, revealed that P. falciparum proteins tend to be longer and vary more in length than the other two species. P. falciparum proteins also contained more predicted low complexity and disorder content than proteins from P. yoelii and P. vivax. P. falciparumprotein targets for experimental structure determination, comparative modeling and in silico docking studies were putatively identified based on structural features. For experimental structure determination, 178 targets were identi_ed. These targets contain limited contents of predicted transmembrane helix, disorder, coiled-coils, low complexity and signal peptide, as these features may complicate steps in the experimental structure determination procedure. In addition, the targets display low similarity to proteins in the PDB. Comparisons of the targets to proteins with crystal structures, revealed that the structures and predicted targets had similar sequence properties and predicted structural features. A group of 373 proteins which displayed high levels of similarity to proteins in the PDB, were identified as targets for comparitive modeling studies. Finally, 197 targets for in silico docking were identified based on predicted small molecule interactions and the availability of a 3D structure.
Download or read book Malaria Immunology written by Peter Perlmann and published by Karger Medical and Scientific Publishers. This book was released on 2002-01-01 with total page 422 pages. Available in PDF, EPUB and Kindle. Book excerpt: Despite extensive efforts to control it, malaria is still one of the most devastating infectious diseases worldwide. This book, now in its second edition, provides a broad and up-to-date overview of the rapidly expanding field of malaria immunology and its importance in the control of this disease. The first section deals with the malaria parasite and its interactions with both the vertebrate host and the mosquitoes which transmit the disease. In the second part, the mechanisms of immunity and their regulation by environmental and genetic factors are discussed. Finally, this volume contains several chapters on malaria vaccine development, describing the application of the most recent vaccine technologies as well as ongoing and planned vaccine trials. Authored by well-recognized experts, this volume not only demonstrates the rapid progress being made in the search for vaccines against malaria, but also broadens our understanding of immunity to infection in general. It is therefore highly recommended reading for all scientists and professionals in the fields of immunology, infection and vaccine development.
Download or read book World Malaria Report 2015 written by World Health Organization and published by World Health Organization. This book was released on 2016-01-30 with total page 283 pages. Available in PDF, EPUB and Kindle. Book excerpt: The World Malaria Report 2015assesses global malaria disease trends and changes in the coverage and financing of malaria control programs between 2000 and 2015. It also summarizes progress towards international targets, and provides regional and country profiles that summarize trends in each WHO region and each country with malaria. The report is produced with the help of WHO regional and country offices, ministries of health in endemic countries, and a broad range of other partners. The data presented are assembled from the 96 countries and territories with ongoing malaria transmission, and a further five countries that have recently eliminated malaria. Most data are those reported for 2014 and 2015, although in some cases projections have been made into 2015, to assess progress towards targets for 2015.
Download or read book Malaria written by and published by BoD – Books on Demand. This book was released on 2019-12-11 with total page 186 pages. Available in PDF, EPUB and Kindle. Book excerpt: Each year, malaria kills almost half a million people despite the fact that it is a preventable and curable disease. Malaria has a direct correlation with economic loss due to the need for people to take time off work and the cost of hospital treatments. Undertaking decisive measures to combat malaria is necessary. This book aims to present current approaches in the treatment of malaria. It will be a guide to those working in malaria-endemic regions and cover both diagnosis and treatment. It will also be useful for medical workers in western countries where malaria is not as common. Considering that malaria causes morbidity and mortality, more especially among children below five years of age and pregnant mothers, it is therefore imperative that people from all walks of life should join hands to address this public health problem.
Download or read book Encyclopedia of Malaria written by and published by Springer. This book was released on 2018-07-12 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Encyclopedia of Malaria represents a vast databank of information about the study of malaria. It provides an overview of the historical, rapid and significant developments that have occurred in malaria research, including the 2002 genome sequencing of Plasmodium falciparum and its mosquito vector, Anopheles gambiae. This work provides a concise source of up-to-date research findings in the form of definitions and essays and present comprehensive coverage of topics from history to findings to diagnosis and treatment, written by recognized malaria researchers with practical experience. It appeals to a diverse audience, including malaria researchers, teachers, investigators and public health professionals.
Download or read book Protein Sensors and Reactive Oxygen Species written by Helmut Sies and published by Academic Press. This book was released on 2002 with total page 550 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume of Methods in Enzymology is concerned with the rapidly developing field of selenoprotein synthesis and its related molecular genetics. Progressive information on the topics of proteins as redox sensors, selenoproteins, and the thioredoxin system is studied using methods such as bioinformatics, DNA chip technology, cell biology, molecular genetics, and enzymology. The information on novel selenoproteins identified from genomic sequence data, as well as current knowledge on glutathione peroxidases, selenoprotein P, iodothyronine deiodinases, and thioredoxin reductases, is presented in a method-based approach.
Download or read book Current Topics in Malaria written by Alfonso J. Rodriguez-Morales and published by . This book was released on 2016-11-30 with total page 508 pages. Available in PDF, EPUB and Kindle. Book excerpt:
