6XLG

Full-length Hsc82 in complex with two Aha1 CTD in the presence of ATPgammaS

• PDB DOI: https://doi.org/10.2210/pdb6XLG/pdb
• EM Map EMD-22243: EMDB EMDataResource

• Classification: CHAPERONE
• Organism(s): Saccharomyces cerevisiae S288C
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2020-06-28 Released: 2021-06-30 
• Deposition Author(s): Liu, Y.X., Sun, M., Myasnikov, A.G., Elnatan, D., Agard, D.A.
• Funding Organization(s): Howard Hughes Medical Institute (HHMI), American Heart Association, National Institutes of Health/National Cancer Institute (NIH/NCI), National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.71 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Cryo-EM structures reveal a multistep mechanism of Hsp90 activation by co-chaperone Aha1

Liu, Y.X., Sun, M., Myasnikov, A.G., Elnatan, D., Agard, D.A.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 242.15 kDa 
• Atom Count: 12,258 
• Modelled Residue Count: 1,504 
• Deposited Residue Count: 2,110 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ATP-dependent molecular chaperone HSC82	A, B	705	Saccharomyces cerevisiae S288C	Mutation(s): 0  Gene Names: HSC82, YMR186W, YM8010.16
UniProt
Find proteins for P15108 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore P15108  Go to UniProtKB:  P15108

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Hsp90 co-chaperone AHA1	C, D	350	Saccharomyces cerevisiae S288C	Mutation(s): 0  Gene Names: AHA1, YDR214W, YD8142.16, YD8142B.06
UniProt
Find proteins for Q12449 (Saccharomyces cerevisiae (strain ATCC 204508 / S288c)) Explore Q12449  Go to UniProtKB:  Q12449

Small Molecules

Ligands 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
AGS	E [auth A], H [auth B]	PHOSPHOTHIOPHOSPHORIC ACID-ADENYLATE ESTER C10 H16 N5 O12 P3 S NLTUCYMLOPLUHL-KQYNXXCUSA-N
K	G [auth A], J [auth B]	POTASSIUM ION K NPYPAHLBTDXSSS-UHFFFAOYSA-N
MG	F [auth A], I [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.71 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2021-06-30 
Deposition Author(s): Liu, Y.X., Sun, M., Myasnikov, A.G., Elnatan, D., Agard, D.A.

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Funding Organization	Location	Grant Number
Howard Hughes Medical Institute (HHMI)	United States	--
American Heart Association	United States	--
National Institutes of Health/National Cancer Institute (NIH/NCI)	United States	U54CA209891
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	S10OD020054
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	S10OD021741

Revision History  

• Version 1.0: 2021-06-30
  Type: Initial release
  
• Version 1.1: 2024-03-06
  Changes: Data collection, Database references