8RBF | pdb_00008rbf

CryoEM structure of the post-powerstroke actomyosin-5a complex

• PDB DOI: https://doi.org/10.2210/pdb8RBF/pdb
• EM Map EMD-19030: EMDB EMDataResource

• Classification: MOTOR PROTEIN
• Organism(s): Mus musculus, Oryctolagus cuniculus
• Expression System: Santiria sp. sf9
• Mutation(s): Yes 


• Deposited: 2023-12-04 Released: 2024-12-11 
• Deposition Author(s): Klebl, D.P., McMillan, S.N., Risi, C., Forgacs, E., Virok, B., Atherton, J.L., Stofella, M., Winkelmann, D.A., Sobott, F., Galkin, V.E., Knight, P.J., Muench, S.P., Scarff, C.A., White, H.D.
• Funding Organization(s): Wellcome Trust, Biotechnology and Biological Sciences Research Council (BBSRC), American Heart Association, Medical Research Council (MRC, United Kingdom), British Heart Foundation

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 4.20 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Swinging lever mechanism of myosin directly demonstrated by time-resolved cryoEM

Klebl, D.P., McMillan, S.N., Risi, C., Forgacs, E., Virok, B., Atherton, J.L., Stofella, M., Winkelmann, D.A., Sobott, F., Galkin, V.E., Knight, P.J., Muench, S.P., Scarff, C.A., White, H.D.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 4-mer - A3B1 Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Homo 3-mer - A3 

Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Homo 3-mer - A3 

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 214.81 kDa 
• Atom Count: 14,790 
• Modelled Residue Count: 1,849 
• Deposited Residue Count: 1,887 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Unconventional myosin-Va	A	759	Mus musculus	Mutation(s): 1  Gene Names: Myo5a, Dilute
UniProt & NIH Common Fund Data Resources
Find proteins for Q99104 (Mus musculus) Explore Q99104  Go to UniProtKB:  Q99104
IMPC:  MGI:105976

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Actin, alpha skeletal muscle	B, C, D	376	Oryctolagus cuniculus	Mutation(s): 1  EC: 3.6.4
UniProt
Find proteins for P68135 (Oryctolagus cuniculus) Explore P68135  Go to UniProtKB:  P68135

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ADP (Subject of Investigation/LOI)	F [auth A], G [auth B], I [auth C], K [auth D]	ADENOSINE-5'-DIPHOSPHATE C10 H15 N5 O10 P2 XTWYTFMLZFPYCI-KQYNXXCUSA-N
MG (Subject of Investigation/LOI)	E [auth A], H [auth B], J [auth C], L [auth D]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 4.20 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-12-11 
Deposition Author(s): Klebl, D.P., McMillan, S.N., Risi, C., Forgacs, E., Virok, B., Atherton, J.L., Stofella, M., Winkelmann, D.A., Sobott, F., Galkin, V.E., Knight, P.J., Muench, S.P., Scarff, C.A., White, H.D.

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Funding Organization	Location	Grant Number
Wellcome Trust	United Kingdom	--
Biotechnology and Biological Sciences Research Council (BBSRC)	United Kingdom	--
American Heart Association	United States	--
Medical Research Council (MRC, United Kingdom)	United Kingdom	--
British Heart Foundation	United Kingdom	--

Revision History  

• Version 1.0: 2024-12-11
  Type: Initial release