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Identification, purification and properties of clone-specific glycoprotein antigens constituting the surface coat of Trypanosoma brucei
Abstract
Soluble glycoproteins have been purified from a series of clones of Trypanosoma brucei 427. Each clone yielded a characteristic predominant glycoprotein which induced clone-specific immunity to trypanosome infection in mice. These glycoproteins were shown by specific labelling and enzyme digestion of cells to be the major components of the trypanosome surface coat. Each glycoprotein consisted of a single polypeptide chain having an apparent molecular weight of 65000 (as measured by SDS-polyacrylamide gel electrophoresis) and containing around 600 amino acid and 20 monosaccharide residues. Preliminary structural studies indicated large changes in amino acid sequence dispersed over a considerable length of the polypeptide chain. Proteolytic activity was demonstrated in semi-purified trypanosome extracts, providing one reason for the heterogeneity sometimes observed in surface glycoprotein antigen preparations.
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Citations
Cites
Colorimetric Method for Determination of Sugars and Related Substances
DuBois, M., Gilles, K. A., Hamilton, J. K., Rebers, P. A., & Smith, F. (1956) · Analytical Chemistry · doi:10.1021/ac60111a017 · Cited by 52,269
Cited by
Antigenic variation in African trypanosomes
Horn, D. (2014) · Molecular and Biochemical Parasitology · doi:10.1016/j.molbiopara.2014.05.001 · Cited by 332
The role of transferrin-receptor variation in the host range of Trypanosoma brucei
Bitter, W., Gerrits, H., Kieft, R., & Borst, P. (1998) · Nature · doi:10.1038/35166 · Cited by 149
Iron-dependent regulation of transferrin receptor expression in Trypanosoma brucei
FAST, B., KREMP, K., BOSHART, M., & STEVERDING, D. (1999) · Biochemical Journal · doi:10.1042/0264-6021:3420691 · Cited by 43
La Greca, F., Haynes, C., Stijlemans, B., De Trez, C., & Magez, S. (2014) · Parasite Immunology · doi:10.1111/pim.12106 · Cited by 20
Sülzen, H., Volkov, A. N., Geens, R., Zahedifard, F., Stijlemans, B., Zoltner, M., Magez, S., Sterckx, Y. G.-J., & Zoll, S. (2024) · PLOS Pathogens · doi:10.1371/journal.ppat.1012186 · Cited by 5
Metadata
- Authors
- Cross, G. A. M.
- Venue
- Parasitology
- Publisher
- Cambridge University Press (CUP)
- Published
- 1975-12
- Volume
- 71
- Issue
- 3
- Pages
- 393-417
- ISSN
- 0031-1820 (ISSN-L)
- 1469-8161
- OpenAlex
- W2143381397
- Cited by
- 898
- References
- 1
- FWCI
- 23.37
- Type
- journal article
- Language
- en
- Open access
- closed
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- Cross, G. A. M. (1975). Identification, purification and properties of clone-specific glycoprotein antigens constituting the surface coat of Trypanosoma brucei. Parasitology. https://doi.org/10.1017/s003118200004717x
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
Semantic Scholar’s data is described in: Kinney, R., et al. (2023). The Semantic Scholar Open Data Platform. arXiv:2301.10140.
