PXD045446-2

PXD045446 is an original dataset announced via ProteomeXchange.

Title	Structure of transcribing RNA polymerase II-Elongin complex
Description	Elongin is a hetero-trimeric elongation factor for RNA polymerase (Pol) II transcription that is conserved among metazoa. We solved three structures of human Elongin bound to transcribing Pol II using cryo-EM assisted by crosslinking mass spectrometry. The structures show that Elongin subunit ELOA binds the RPB2 side of Pol II and anchors the ELOB-8 ELOC subunit heterodimer. ELOA contains an N-terminal ‘latch’ that binds between the end of the RPB1 bridge helix and the funnel helices, thereby inducing a conformational change near the Pol II active center. The latch is strictly required for the elongation-stimulatory activity of Elongin, but not for its binding to Pol II, indicating that Elongin functions by allosterically influencing the conformational mobility of the active center. Structural comparisons show that Elongin binding to Pol II is incompatible with association of super elongation complex, the PAF1 complex, and RTF1, which also contains a latch element that stimulates Pol II.
HostingRepository	PRIDE
AnnounceDate	2023-11-14
AnnouncementXML	Submission_2023-11-14_07:37:34.378.xml
DigitalObjectIdentifier
ReviewLevel	Peer-reviewed dataset
DatasetOrigin	Original dataset
RepositorySupport	Unsupported dataset by repository
PrimarySubmitter	Olexandr Dybkov
SpeciesList	scientific name: Sus scrofa domesticus (domestic pig); NCBI TaxID: 9825; scientific name: Homo sapiens (Human); NCBI TaxID: 9606;
ModificationList	No PTMs are included in the dataset
Instrument	Orbitrap Exploris 480

Revision	Datetime	Status	ChangeLog Entry
0	2023-09-18 04:03:43	ID requested
1	2023-10-11 13:25:49	announced
⏵ 2	2023-11-14 07:37:34	announced	2023-11-14: Updated project metadata.

Dataset with its publication pending

submitter keyword: Transcription elongation, RNA Pol II, SPT6, cross-linking mass spectrometry, Elongin, cryo-EM analysis

Henning Urlaub
contact affiliation	Bioanalytical Mass Spectrometry, Max Planck Institute for Multidisciplinary Sciences, Göttingen, Germany University Medical Center Göttingen, Institute of Clinical Chemistry, Bioanalytics Group, Göttingen, Germany Cluster of Excellence "Multiscale Bioimaging: from Molecular Machines to Networks of Excitable Cells" (MBExC), University of Göttingen, Germany
contact email	henning.urlaub@mpinat.mpg.de
lab head
Olexandr Dybkov
contact affiliation	Max Planck Institute for Multidisciplinary Sciences
contact email	odybkov@gwdg.de
dataset submitter

Dataset FTP location NOTE: Most web browsers have now discontinued native support for FTP access within the browser window. But you can usually install another FTP app (we recommend FileZilla) and configure your browser to launch the external application when you click on this FTP link. Or otherwise, launch an app that supports FTP (like FileZilla) and use this address: ftp://ftp.pride.ebi.ac.uk/pride/data/archive/2023/10/PXD045446

PRIDE project URI

• PRIDE
  1. PXD045446
     1. Label: PRIDE project
     2. Name: Structure of transcribing RNA polymerase II-Elongin complex