General transcription and DNA repair factor IIH helicase subunit XPD / DNA repair protein RAD4 / General transcription and DNA repair factor IIH subunit TFB1 / General transcription and DNA repair factor IIH helicase/translocase subunit XPB/SSL2 / General transcription and DNA repair factor IIH subunit TFB2 / DNA repair protein RAD33 / General transcription and DNA repair factor IIH subunit SSL1 / General transcription and DNA repair factor IIH subunit TFB4 / General transcription and DNA repair factor IIH subunit TFB5 Similarity search - Component
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)
R01-GM123233
United States
Citation
Journal: Nat Commun / Year: 2021 Title: Cryo-EM structure of TFIIH/Rad4-Rad23-Rad33 in damaged DNA opening in nucleotide excision repair. Authors: Trevor van Eeuwen / Yoonjung Shim / Hee Jong Kim / Tingting Zhao / Shrabani Basu / Benjamin A Garcia / Craig D Kaplan / Jung-Hyun Min / Kenji Murakami / Abstract: The versatile nucleotide excision repair (NER) pathway initiates as the XPC-RAD23B-CETN2 complex first recognizes DNA lesions from the genomic DNA and recruits the general transcription factor ...The versatile nucleotide excision repair (NER) pathway initiates as the XPC-RAD23B-CETN2 complex first recognizes DNA lesions from the genomic DNA and recruits the general transcription factor complex, TFIIH, for subsequent lesion verification. Here, we present a cryo-EM structure of an NER initiation complex containing Rad4-Rad23-Rad33 (yeast homologue of XPC-RAD23B-CETN2) and 7-subunit coreTFIIH assembled on a carcinogen-DNA adduct lesion at 3.9-9.2 Å resolution. A ~30-bp DNA duplex could be mapped as it straddles between Rad4 and the Ssl2 (XPB) subunit of TFIIH on the 3' and 5' side of the lesion, respectively. The simultaneous binding with Rad4 and TFIIH was permitted by an unwinding of DNA at the lesion. Translocation coupled with torque generation by Ssl2 and Rad4 would extend the DNA unwinding at the lesion and deliver the damaged strand to Rad3 (XPD) in an open form suitable for subsequent lesion scanning and verification.
History
Deposition
Sep 3, 2020
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Header (metadata) release
Jul 28, 2021
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Map release
Jul 28, 2021
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Update
Jul 28, 2021
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Current status
Jul 28, 2021
Processing site: RCSB / Status: Released
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Structure visualization
Movie
Surface view with section colored by density value
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