Comparative proteomic analysis of trophozoites versus cysts of Giardia lamblia
Parasitology Research, ISSN: 0932-0113, Vol: 104, Issue: 2, Page: 475-479
2009
- 29Citations
- 41Captures
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Metrics Details
- Citations29
- Citation Indexes29
- 29
- CrossRef26
- Captures41
- Readers41
- 41
Article Description
The proteome of Giardia lamblia at its cyst stage was compared with that of trophozoites by using two-dimensional SDS-PAGE gel electrophoresis. Protein spots that increased in the extracts of cysts compared to trophozoites were identified by MALDI-TOF mass spectroscopy and categorized as cytoskeletal proteins, metabolic enzymes, a cell-cycle-specific kinase, stress resistance proteins, and a protein involved in translation. Expression patterns of five of the identified proteins were examined during encystation by real-time PCR. Expression of cwp1 (encoding cyst wall protein 1), a marker for encystation, was increased 11-fold. In contrast, tim (encoding triose-1-phosphate isomerase) was expressed constitutively during encystation, and its transcription level was therefore used as a mRNA loading control. Expression of three genes encoding β-tubulin, vacuolar ATPase, and never-in-mitosis-A-related protein kinase did not vary significantly during encystation. Interestingly, genes encoding two heat shock proteins (Hsp70 and Hsp90) showed increased expression during encystation, suggesting that this differentiation process accompanies a cellular response to stress in G. lamblia. © 2008 Springer-Verlag.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=58649111739&origin=inward; http://dx.doi.org/10.1007/s00436-008-1223-x; http://www.ncbi.nlm.nih.gov/pubmed/18853189; http://link.springer.com/10.1007/s00436-008-1223-x; https://dx.doi.org/10.1007/s00436-008-1223-x; https://link.springer.com/article/10.1007/s00436-008-1223-x; http://www.springerlink.com/index/10.1007/s00436-008-1223-x; http://www.springerlink.com/index/pdf/10.1007/s00436-008-1223-x
Springer Science and Business Media LLC
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