Apicortin, a Putative Apicomplexan-Specific Protein, Is Present in Deep-Branching Opisthokonts
Apicortin, a tubulin/microtubule-binding protein, was first described in 2009 as a protein characteristic of apicomplexans; it was found to be present in all Apicomplexa genomes already sequenced. Apart from these, it was found only in <i>Trichoplax adhaerens</i>, the only known represen...
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| Format: | Article |
| Language: | English |
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MDPI AG
2025-05-01
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| Series: | Biology |
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| Online Access: | https://www.mdpi.com/2079-7737/14/6/620 |
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| Summary: | Apicortin, a tubulin/microtubule-binding protein, was first described in 2009 as a protein characteristic of apicomplexans; it was found to be present in all Apicomplexa genomes already sequenced. Apart from these, it was found only in <i>Trichoplax adhaerens</i>, the only known representative of Placozoa at the time. Subsequent analyses revealed that it is present in both closely and distantly related taxa of Apicomplexa (Chrompodellids, Squirmids, Dinoflagellates, and Perkinsids, i.e., in Myzozoa). On the other hand, it turned out that it is also present in early-branching fungi that reproduce by zoospores. Now, we have shown that apicortin is found in many deep-branching opisthokonts. In addition to these fungi and <i>T. adhaerens</i>, it is also present in other simple animals, including further Placozoa and Ctenophora, and another opisthokont clade, choanoflagellates. However, apicortin-homologous sequences detected in the genomes/transcriptomes of bilaterian animals are the result of contamination. |
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| ISSN: | 2079-7737 |