8TW9

Cryo-EM structure of S. cerevisiae PolE-Ctf18-8-1-DNA

• PDB DOI: https://doi.org/10.2210/pdb8TW9/pdb
• EM Map EMD-41663: EMDB EMDataResource
• NAKB: 8TW9

• Classification: DNA BINDING PROTEIN/DNA
• Organism(s): Saccharomyces cerevisiae, synthetic construct
• Expression System: Saccharomyces cerevisiae
• Mutation(s): No 


• Deposited: 2023-08-20 Released: 2024-09-04 
• Deposition Author(s): Yuan, Z., Georgescu, R., O'Donnell, M., Li, H.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), Howard Hughes Medical Institute (HHMI)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.60 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Cryo-EM reveals that Ctf18-RFC collaborates with PolE to load the PCNA clamp onto a leading strand DNA

Yuan, Z., Georgescu, R., O'Donnell, M., Li, H.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 4-mer - A1B1C1D1 

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 326.01 kDa 
• Atom Count: 13,586 
• Modelled Residue Count: 1,680 
• Deposited Residue Count: 2,784 
• Unique protein chains: 4
• Unique nucleic acid chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chromosome transmission fidelity protein 18	A [auth C]	26	Saccharomyces cerevisiae	Mutation(s): 0  Gene Names: CTF18
UniProt
Find proteins for P49956 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P49956  Go to UniProtKB:  P49956

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
DNA polymerase epsilon catalytic subunit A	D [auth E]	2,222	Saccharomyces cerevisiae	Mutation(s): 0  Gene Names: POL2, DUN2, YNL262W, N0825 EC: 2.7.7.7 (PDB Primary Data), 3.1.11 (PDB Primary Data)
UniProt
Find proteins for P21951 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P21951  Go to UniProtKB:  P21951

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Chromosome transmission fidelity protein 8	E [auth D]	132	Saccharomyces cerevisiae	Mutation(s): 0  Gene Names: CTF8
UniProt
Find proteins for P38877 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P38877  Go to UniProtKB:  P38877

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
Sister chromatid cohesion protein DCC1	F [auth B]	380	Saccharomyces cerevisiae	Mutation(s): 0  Gene Names: DCC1, YCL016C, YCL16C
UniProt
Find proteins for P25559 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P25559  Go to UniProtKB:  P25559

Entity ID: 2
Molecule	Chains	Length	Organism	Image
Primer DNA	B [auth P]	9	synthetic construct

Entity ID: 3
Molecule	Chains	Length	Organism	Image
Template DNA	C [auth T]	15	synthetic construct

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SF4	G [auth E]	IRON/SULFUR CLUSTER Fe4 S4 LJBDFODJNLIPKO-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.60 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-09-04 
Deposition Author(s): Yuan, Z., Georgescu, R., O'Donnell, M., Li, H.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	GM131754
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	GM115809
Howard Hughes Medical Institute (HHMI)	United States	M.E.O.

Revision History  

• Version 1.0: 2024-09-04
  Type: Initial release