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CABI Book Chapter

Giardia and Cryptosporidium: from molecules to disease.

Book cover for <i xmlns="">Giardia</i> and <i xmlns="">Cryptosporidium</i>: from molecules to disease.


Giardia and Cryptosporidium are both parasites of considerable global interest due to the gastrointestinal problems the organisms can cause in humans as well as domestic and wild animals. This book presents an overview of recent research. The chapters discuss topics from taxonomy; nomenclature and evolution to molecular epidemiology; advances in diagnostics; and zoonotic, and human and animal heal...


Chapter 30 (Page no: 369)

The surface protein repertoires of Cryptosporidium spp. and other apicomplexans.

Whole-genome and high-coverage nucleotide sequence information is now available for three species of Cryptosporidium: C. parvum, C. hominis and C. muris. In this chapter I introduce the repertoires of Cryptosporidium surface and secreted proteins as revealed by complete annotations and whole-genome comparisons. These descriptions are also extended to comparisons with the apicomplexans, Plasmodium, Theileria and Toxoplasma, all of which have available complete nucleotide sequence information. Cryptosporidium possesses a large repertoire of multi-domain surface proteins that align it with the Coccidia, to the exclusion of Haemosporidia (Plasmodium spp.) and Piroplasmida (Theileria). The proposed phylogenetic affinity of Cryptosporidium with Gregarina indicates that these two early-diverging apicomplexans might uniquely share surface protein repertoires; however, analyses of sequence information from a GSS project for the gregarine, Ascogregarina taiwanensis, did not identify proteins that are conserved with Cryptosporidium to the exclusion of Toxoplasma. Cryptosporidium possesses numerous lineage-specific proteins, many of which are expanded within gene families and within loci of paralogous genes. These rapidly evolving surface proteins may have conferred adaptations to the specialized parasitic niche within the intestinal epithelium, and perhaps mediate direct physical interactions with the host. The lineage-specific proteins are conserved, perhaps without exception, in C. hominis, but are highly divergent and apparently not universally conserved as orthologues in the newly available genome nucleotide sequence database for C. muris.

Other chapters from this book

Chapter: 1 (Page no: 1) The impact of Giardia on science and society. Author(s): Thompson, R. C. A.
Chapter: 2 (Page no: 12) Cryptosporidium in cattle: from observing to understanding. Author(s): Fayer, R. Santín, M. Trout, J. M.
Chapter: 3 (Page no: 25) Names do matter. Author(s): Bowman, D. D.
Chapter: 4 (Page no: 31) Centenary of the genus Cryptosporidium: from morphological to molecular species identification. Author(s): Šlapeta, J.
Chapter: 5 (Page no: 51) Molecular epidemiology of human cryptosporidiosis in developing countries. Author(s): Xiao, L.
Chapter: 6 (Page no: 65) Molecular epidemiology and typing of non-human isolates of Cryptosporidium. Author(s): Ryan, U. M. Xiao, L.
Chapter: 7 (Page no: 81) Insights into the molecular detection of Giardia duodenalis: implications for epidemiology. Author(s): Cacciò, S. M. Lalle, M. Beck, R. Pozio, E.
Chapter: 8 (Page no: 94) Wildlife with Giardia: villain, or victim and vector? Author(s): Kutz, S. J. Thompson, R. C. A. Polley, L.
Chapter: 9 (Page no: 107) The role of livestock in the foodborne transmission of Giardia duodenalis and Cryptosporidium spp. to humans. Author(s): Dixon, B. R.
Chapter: 10 (Page no: 123) The risk of zoonotic genotypes of Cryptosporidium spp. in watersheds. Author(s): Mohammed, H. O. Wade, S. E.
Chapter: 11 (Page no: 131) Clinical presentation in Cryptosporidium-infected patients. Author(s): Kortbeek, L. M.
Chapter: 12 (Page no: 138) Molecular epidemiology of Cryptosporidium and Giardia infections. Author(s): Hunter, P. R.
Chapter: 13 (Page no: 147) Advances in diagnosis: is microscopy still the benchmark? Author(s): Chalmers, R. M.
Chapter: 14 (Page no: 158) Control of Cryptosporidium and Giardia in surface water by disinfection. Author(s): Hargy, T. M. Clancy, J. L. Landry, L. P.
Chapter: 15 (Page no: 179) Towards methods for detecting UV-induced damage in individual Cryptosporidium parvum and Cryptosporidium hominis oocysts by immunofluorescence microscopy. Author(s): Smith, H. V. Al-Adhami, B. H. Nichols, R. A. B. Kusel, J. R. O'Grady, J.
Chapter: 16 (Page no: 198) Effect of environmental and conventional water treatment processes on waterborne Cryptosporidium oocysts. Author(s): King, B. Keegan, A. Saint, C. Monis, P.
Chapter: 17 (Page no: 210) Methods for genotyping and subgenotyping Cryptosporidium spp. oocysts isolated during water and food monitoring. Author(s): Smith, H. V. Nichols, R. A. B. Connelly, L. Sullivan, C. B.
Chapter: 18 (Page no: 227) Intervention in waterborne disease. Author(s): Nichols, G. Lake, I. R. Chalmers, R. M. Bentham, G. Harrison, F. C. D. Hunter, P. R. Kovats, S. Grundy, C. Anthony, S. Lyons, H. Agnew, M. Proctor, C.
Chapter: 19 (Page no: 238) Occurrence and control of Naegleria fowleri in drinking water wells. Author(s): Gerba, C. P. Blair, B. L. Sarkar, P. Bright, K. R. MacLean, R. C. Marciano-Cabral, F.
Chapter: 20 (Page no: 248) Environmental factors influencing the survival of Cyclospora cayetanensis. Author(s): Ortega, Y. R.
Chapter: 21 (Page no: 255) Recent advances in the developmental biology and life cycle of Cryptosporidium. Author(s): Hijjawi, N. S. Boxell, A. C. Thompson, R. C. A.
Chapter: 22 (Page no: 266) Basic biology of Giardia lamblia: further studies on median body and funis. Author(s): Benchimol, M.
Chapter: 23 (Page no: 284) Giardia intestinalis: a microaerophilic parasite with mitochondrial ancestry. Author(s): León-Avila, G. Hernández, J. M. Tovar, J.
Chapter: 24 (Page no: 292) Cytoskeleton-based lipid transport in a parasitic protozoan, Giardia lamblia. Author(s): Castillo, C. Hernandez, Y. Roychowdhury, S. Das, S.
Chapter: 25 (Page no: 309) Signalling during Giardia differentiation. Author(s): Lauwaet, T. Gillin, F. D.
Chapter: 26 (Page no: 320) Preliminary analysis of the Cryptosporidium muris genome. Author(s): Widmer, G. London, E. Zhang, L. Ge, G. Tzipori, S. Carlton, J. M. Silva, J. C. da
Chapter: 27 (Page no: 328) Proteomic analyses in Giardia. Author(s): Palm, D. Svärd, S. G.
Chapter: 28 (Page no: 344) Proteomic and genomic approaches to understanding the 'power plant' of Cryptosporidium. Author(s): Putignani, L. Sanderson, S. J. Russo, C. Kissinger, J. Menichella, D. Wastling, J. M.
Chapter: 29 (Page no: 360) Energy metabolism and carbon flow in Cryptosporidium parvum. Author(s): Zhu, G.
Chapter: 31 (Page no: 382) Giardan: structure, synthesis, regulation and inhibition. Author(s): Scedilla˜ener, K. Keulen, H. van Jarroll, E. L.
Chapter: 32 (Page no: 398) Protein kinase C in Giardia duodenalis: a family affair. Author(s): Bazán-Tejeda, M. L. Argüello-García, R. Bermúdez-Cruz, R. M. Robles-Flores, M. Ortega-Pierres, G.
Chapter: 33 (Page no: 409) Secretory granule biogenesis and the organization of membrane compartments via SNARE proteins in Giardia lamblia. Author(s): Elías, E. V. Gottig, N. Quiroga, R. Luján, H. D.
Chapter: 34 (Page no: 418) Molecular mechanisms of Cryptosporidium-induced host actin cytoskeleton dynamics. Author(s): O'Hara, S. P. Chen, X. M. LaRusso, N. F.
Chapter: 35 (Page no: 428) Pathogenic mechanisms in giardiasis and cryptosporidiosis. Author(s): Buret, A. G.
Chapter: 36 (Page no: 442) Interferon-gamma (IFN-γ) in immunological control of cryptosporidial infection. Author(s): Choudhry, N. Bajaj-Elliott, M. McDonald, V.
Chapter: 37 (Page no: 451) Immune response to Giardia infection: lessons from animal models. Author(s): Singer, S. M. Kamda, J.
Chapter: 38 (Page no: 463) Drug treatment and novel drug targets against Giardia and Cryptosporidium. Author(s): Rossignol, J. F.

Chapter details

  • Author Affiliation
  • Weill Medical College of Cornell University, Ithaca, New York, USA.
  • Year of Publication
  • 2009
  • ISBN
  • 9781845933913
  • Record Number
  • 20093086301