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Sökning: WFRF:(Cook Atlanta G.)

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1.
  • Agirre, Jon, et al. (författare)
  • The CCP4 suite: integrative software for macromolecular crystallography
  • 2023
  • Ingår i: Acta Crystallographica Section D. - : INT UNION CRYSTALLOGRAPHY. - 2059-7983. ; 79, s. 449-461
  • Tidskriftsartikel (refereegranskat)abstract
    • The Collaborative Computational Project No. 4 (CCP4) is a UK-led international collective with a mission to develop, test, distribute and promote software for macromolecular crystallography. The CCP4 suite is a multiplatform collection of programs brought together by familiar execution routines, a set of common libraries and graphical interfaces. The CCP4 suite has experienced several considerable changes since its last reference article, involving new infrastructure, original programs and graphical interfaces. This article, which is intended as a general literature citation for the use of the CCP4 software suite in structure determination, will guide the reader through such transformations, offering a general overview of the new features and outlining future developments. As such, it aims to highlight the individual programs that comprise the suite and to provide the latest references to them for perusal by crystallographers around the world.
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2.
  • Schöpp, Theresa, et al. (författare)
  • The DUF3715 domain has a conserved role in RNA-directed transposon silencing
  • 2023
  • Ingår i: RNA. - 1355-8382. ; 29:10, s. 1471-1480
  • Tidskriftsartikel (refereegranskat)abstract
    • RNA-directed transposon silencing operates in the mammalian soma and germline to safeguard genomic integrity. The piRNA pathway and the HUSH complex identify active transposons through recognition of their nascent transcripts, but mechanistic understanding of how these distinct pathways evolved is lacking. TASOR is an essential component of the HUSH complex. TASOR's DUF3715 domain adopts a pseudo-PARP structure and is required for transposon silencing in a manner independent of complex assembly. TEX15, an essential piRNA pathway factor, also contains the DUF3715 domain. Here, we show that TASOR's and TEX15's DUF3715 domain share extensive structural homology. We found that the DUF3715 domain arose in early eukaryotes and that in vertebrates it is restricted to TEX15, TASOR, and TASORB orthologues. While TASOR-like proteins are found throughout metazoa, TEX15 is vertebrate specific. The branching of TEX15 and TASOR-like DUF3715 domain likely occurred in early metazoan evolution. Remarkably, despite this vast evolutionary distance, the DUF3715 domain from divergent TEX15 sequences can functionally substitute for the same domain in TASOR and mediates transposon silencing. We have thus termed this domain of unknown function as the RNA-directed pseudo-PARP transposon silencing (RDTS) domain. In summary, we show an unexpected functional link between these critical transposon silencing pathways.
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