RT Journal Article T1 ICETh1 and ICETh2, two interdependent mobile genetic elements in Thermus thermophilus transjugation A1 Baquedano, Ignacio A1 Mencía, Mario A1 Blesa Esteban, Alba Mercedes A1 Burrus, VIncent A1 Berenguer, José AB Cell to cell DNA transfer between Thermus thermophilus, or transjugation, requires the natural competence apparatus (NCA) of the recipient cell and a DNA donation machinery in the donor. In T. thermophilus HB27, two mobile genetic elements with functional similarities to Integrative and Conjugative Elements (ICEs) coexist, ICETh1 encoding the DNA transfer apparatus and ICETh2, encoding a putative replication module. Here, we demonstrate that excision and integration of both elements depend on a single tyrosine recombinase encoded by ICETh2, and that excision is not required but improves the transfer of these elements to a recipient cell. These findings along with previous results suggest that ICETh1 and ICETh2 depend on each other for spreading among T. thermophilus by transjugation. SN 1462-2912 YR 2019 FD 2019-12-02 LK https://hdl.handle.net/20.500.14352/98344 UL https://hdl.handle.net/20.500.14352/98344 LA eng NO Baquedano I, Mencía M, Blesa A, Burrus V, Berenguerfi J. ICETh1 and ICETh2, two interdependent mobile genetic elements in Thermus thermophilus transjugation. Environ Microbiol. 2020 Jan;22(1):158-169. doi: 10.1111/1462-2920.14833. Epub 2019 Dec 2. PMID: 31715642. NO Ministerio de Ciencia, Innovación y Universidades (España) NO Fundación Ramón Areces NO Natural Sciences and Engineering Council of Canada (NSERC) DS Docta Complutense RD 6 abr 2025