9PCR | pdb_00009pcr

Tail of Mediator of PIC-Med-SWI/SNF

• PDB DOI: https://doi.org/10.2210/pdb9PCR/pdb
• EM Map EMD-71517: EMDB EMDataResource

• Classification: TRANSCRIPTION
• Organism(s): Saccharomyces cerevisiae
• Mutation(s): No 


• Deposited: 2025-06-29 Released: 2026-10-14 
• Deposition Author(s): Yang, C., Nagai, S., Chen, D.-H.
• Funding Organization(s): Other private

---

Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.70 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structure of Tail of Mediator of PIC-Med-SWI/SNF

Yang, C., Nagai, S., Chen, D.-H.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 6-mer - A1B1C1D1E1F1 

Biological assembly 1 assigned by authors and generated by (software)

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 575.15 kDa 
• Atom Count: 17,805 
• Modeled Residue Count: 2,199 
• Deposited Residue Count: 5,097 
• Unique protein chains: 6

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Mediator of RNA polymerase II transcription subunit 2	A [auth 1]	431	Saccharomyces cerevisiae	Mutation(s): 0
UniProt
Find proteins for Q12124 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore Q12124  Go to UniProtKB:  Q12124

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Mediator of RNA polymerase II transcription subunit 3	B [auth 2]	397	Saccharomyces cerevisiae	Mutation(s): 0
UniProt
Find proteins for P40356 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P40356  Go to UniProtKB:  P40356

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Mediator of RNA polymerase II transcription subunit 5	C [auth 3]	1,132	Saccharomyces cerevisiae	Mutation(s): 0
UniProt
Find proteins for P53114 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P53114  Go to UniProtKB:  P53114

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Mediator of RNA polymerase II transcription subunit 14	D [auth 4]	1,082	Saccharomyces cerevisiae	Mutation(s): 0
UniProt
Find proteins for P19263 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P19263  Go to UniProtKB:  P19263

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Mediator of RNA polymerase II transcription subunit 15	E [auth 5]	1,081	Saccharomyces cerevisiae	Mutation(s): 0
UniProt
Find proteins for P19659 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P19659  Go to UniProtKB:  P19659

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
Mediator of RNA polymerase II transcription subunit 16	F [auth 6]	974	Saccharomyces cerevisiae	Mutation(s): 0
UniProt
Find proteins for P32259 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P32259  Go to UniProtKB:  P32259

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.70 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.20.1_4487:
RECONSTRUCTION	RELION	5

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2026-10-14 
Deposition Author(s): Yang, C., Nagai, S., Chen, D.-H.

---

Funding Organization	Location	Grant Number
Other private	United States	--

Revision History  

• Version 1.0: 2026-10-14
  Type: Initial release