4DFC:
reference: Nucleotide excision repair (NER) machinery recruitment by the transcription-repair coupling factor involves unmasking of a conserved intramolecular interface., Deaconescu AM, Sevostyanova A, Artsimovitch I, Grigorieff N, Proc Natl Acad Sci U S A. 2012 Feb 28;109(9):3353-8. Epub 2012 Feb 13. PMID: 22331906

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