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- PDB-5o7x: CRYSTAL STRUCTURE OF S. CEREVISIAE CORE FACTOR AT 3.2A RESOLUTION -
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Basic information
Entry | Database: PDB / ID: 5o7x | |||||||||
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Title | CRYSTAL STRUCTURE OF S. CEREVISIAE CORE FACTOR AT 3.2A RESOLUTION | |||||||||
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![]() | TRANSCRIPTION / RNA POLYMERASE I INITIATION / CORE FACTOR | |||||||||
Function / homology | ![]() RNA polymerase I transcription regulatory region sequence-specific DNA binding / RNA polymerase I core factor complex / RNA polymerase I general transcription initiation factor activity / RNA polymerase I general transcription initiation factor binding / RNA polymerase I core promoter sequence-specific DNA binding / RNA Polymerase I Promoter Escape / nucleolar large rRNA transcription by RNA polymerase I / transcription initiation at RNA polymerase I promoter / TBP-class protein binding / nucleolus ...RNA polymerase I transcription regulatory region sequence-specific DNA binding / RNA polymerase I core factor complex / RNA polymerase I general transcription initiation factor activity / RNA polymerase I general transcription initiation factor binding / RNA polymerase I core promoter sequence-specific DNA binding / RNA Polymerase I Promoter Escape / nucleolar large rRNA transcription by RNA polymerase I / transcription initiation at RNA polymerase I promoter / TBP-class protein binding / nucleolus / nucleus / metal ion binding / cytoplasm Similarity search - Function | |||||||||
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![]() | Engel, C. / Gubbey, T. / Neyer, S. / Sainsbury, S. / Oberthuer, C. / Baejen, C. / Bernecky, C. / Cramer, P. | |||||||||
![]() | ![]() Title: Structural Basis of RNA Polymerase I Transcription Initiation. Authors: Christoph Engel / Tobias Gubbey / Simon Neyer / Sarah Sainsbury / Christiane Oberthuer / Carlo Baejen / Carrie Bernecky / Patrick Cramer / ![]() Abstract: Transcription initiation at the ribosomal RNA promoter requires RNA polymerase (Pol) I and the initiation factors Rrn3 and core factor (CF). Here, we combine X-ray crystallography and cryo-electron ...Transcription initiation at the ribosomal RNA promoter requires RNA polymerase (Pol) I and the initiation factors Rrn3 and core factor (CF). Here, we combine X-ray crystallography and cryo-electron microscopy (cryo-EM) to obtain a molecular model for basal Pol I initiation. The three-subunit CF binds upstream promoter DNA, docks to the Pol I-Rrn3 complex, and loads DNA into the expanded active center cleft of the polymerase. DNA unwinding between the Pol I protrusion and clamp domains enables cleft contraction, resulting in an active Pol I conformation and RNA synthesis. Comparison with the Pol II system suggests that promoter specificity relies on a distinct "bendability" and "meltability" of the promoter sequence that enables contacts between initiation factors, DNA, and polymerase. | |||||||||
History |
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-Validation report
Summary document | ![]() | 743.5 KB | Display | ![]() |
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Full document | ![]() | 1.1 MB | Display | |
Data in XML | ![]() | 291.3 KB | Display | |
Data in CIF | ![]() | 383.8 KB | Display | |
Arichive directory | ![]() ![]() | HTTPS FTP |
-Related structure data
Related structure data | ![]() 3590C ![]() 3591C ![]() 3592C ![]() 3593C ![]() 3594C ![]() 5n5yC ![]() 5n5zC ![]() 5n60C ![]() 5n61C C: citing same article ( |
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Assembly
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Noncrystallographic symmetry (NCS) | NCS domain:
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