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Experimental Examination of EFL and MATX Eukaryotic Horizontal Gene Transfers: Coexistence of Mutually Exclusive Transcripts Predates Functional Rescue
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SYSNO ASEP 0364810 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Experimental Examination of EFL and MATX Eukaryotic Horizontal Gene Transfers: Coexistence of Mutually Exclusive Transcripts Predates Functional Rescue Author(s) Szabová, J. (CZ)
Růžička, Petr (BC-A)
Verner, Zdeněk (BC-A)
Hampl, V. (CZ)
Lukeš, Julius (BC-A) RID, ORCIDSource Title Molecular Biology and Evolution. - : Oxford University Press - ISSN 0737-4038
Roč. 28, č. 8 (2011), s. 2371-2378Number of pages 8 s. Language eng - English Country US - United States Keywords EFL ; MATX ; horizontal gene transfer ; functional rescue ; RNAi ; Trypanosoma Subject RIV EB - Genetics ; Molecular Biology R&D Projects GA204/09/1667 GA ČR - Czech Science Foundation (CSF) 2B06129 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) CEZ AV0Z60220518 - PAU-O, BC-A (2005-2011) UT WOS 000293304700018 DOI 10.1093/molbev/msr060 Annotation Elongation factor 1 alpha (EF-1 alpha) and methionine adenosyl transferase (MAT) are enzymes with complicated evolutionary histories. These essential enzymes occur as two relatively divergent paralogs (EF-1 alpha/EFL, MAT/MATX) that have patchy distributions in eukaryotic lineages. To understand the evolution of these paralogs, we have performed in vivo experiments in Trypanosoma brucei – we have demonstrated that EF-1 alpha and MAT can be simultaneously expressed with EFL and MATX, respectively, without affecting the growth of the flagellates. After the endogenous MAT or EF-1 alpha was downregulated by RNA interference, MATX immediately substituted for its paralog, whereas EFL was not able to substitute for EF-1 alpha, leading to mortality. We conclude that MATX is naturally capable of evolving patchy paralog distribution via HGTs and/or long- term coexpression and differential losses. The capability of EFL to spread by HGT is lower. Workplace Biology Centre (since 2006) Contact Dana Hypšová, eje@eje.cz, Tel.: 387 775 214 Year of Publishing 2012
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