Evolutionary diversification of the trypanosome haptoglobin-haemoglobin receptor from an ancestral haemoglobin receptor.
The haptoglobin-haemoglobin receptor of the African trypanosome species, Trypanosoma brucei, is expressed when the parasite is in the bloodstream of the mammalian host, allowing it to acquire haem through the uptake of haptoglobin-haemoglobin complexes. Here we show that in Trypanosoma congolense th...
| Main Authors: | , , , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
eLife Sciences Publications
2016
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| _version_ | 1797062986353868800 |
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| author | Lane-Serff, H MacGregor, P Peacock, L Macleod, O Kay, C Gibson, W Higgins, M Carrington, M |
| author_facet | Lane-Serff, H MacGregor, P Peacock, L Macleod, O Kay, C Gibson, W Higgins, M Carrington, M |
| author_sort | Lane-Serff, H |
| collection | OXFORD |
| description | The haptoglobin-haemoglobin receptor of the African trypanosome species, Trypanosoma brucei, is expressed when the parasite is in the bloodstream of the mammalian host, allowing it to acquire haem through the uptake of haptoglobin-haemoglobin complexes. Here we show that in Trypanosoma congolense this receptor is instead expressed in the epimastigote developmental stage that occurs in the tsetse fly, where it acts as a haemoglobin receptor. We also present the structure of the T. congolense receptor in complex with haemoglobin. This allows us to propose an evolutionary history for this receptor, charting the structural and cellular changes that took place as it adapted from a role in the insect to a new role in the mammalian host. |
| first_indexed | 2024-03-06T20:53:23Z |
| format | Journal article |
| id | oxford-uuid:385b8f89-6f58-4e02-9007-75ea6520af54 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T20:53:23Z |
| publishDate | 2016 |
| publisher | eLife Sciences Publications |
| record_format | dspace |
| spelling | oxford-uuid:385b8f89-6f58-4e02-9007-75ea6520af542022-03-26T13:49:33ZEvolutionary diversification of the trypanosome haptoglobin-haemoglobin receptor from an ancestral haemoglobin receptor.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:385b8f89-6f58-4e02-9007-75ea6520af54EnglishSymplectic Elements at OxfordeLife Sciences Publications2016Lane-Serff, HMacGregor, PPeacock, LMacleod, OKay, CGibson, WHiggins, MCarrington, MThe haptoglobin-haemoglobin receptor of the African trypanosome species, Trypanosoma brucei, is expressed when the parasite is in the bloodstream of the mammalian host, allowing it to acquire haem through the uptake of haptoglobin-haemoglobin complexes. Here we show that in Trypanosoma congolense this receptor is instead expressed in the epimastigote developmental stage that occurs in the tsetse fly, where it acts as a haemoglobin receptor. We also present the structure of the T. congolense receptor in complex with haemoglobin. This allows us to propose an evolutionary history for this receptor, charting the structural and cellular changes that took place as it adapted from a role in the insect to a new role in the mammalian host. |
| spellingShingle | Lane-Serff, H MacGregor, P Peacock, L Macleod, O Kay, C Gibson, W Higgins, M Carrington, M Evolutionary diversification of the trypanosome haptoglobin-haemoglobin receptor from an ancestral haemoglobin receptor. |
| title | Evolutionary diversification of the trypanosome haptoglobin-haemoglobin receptor from an ancestral haemoglobin receptor. |
| title_full | Evolutionary diversification of the trypanosome haptoglobin-haemoglobin receptor from an ancestral haemoglobin receptor. |
| title_fullStr | Evolutionary diversification of the trypanosome haptoglobin-haemoglobin receptor from an ancestral haemoglobin receptor. |
| title_full_unstemmed | Evolutionary diversification of the trypanosome haptoglobin-haemoglobin receptor from an ancestral haemoglobin receptor. |
| title_short | Evolutionary diversification of the trypanosome haptoglobin-haemoglobin receptor from an ancestral haemoglobin receptor. |
| title_sort | evolutionary diversification of the trypanosome haptoglobin haemoglobin receptor from an ancestral haemoglobin receptor |
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