8OF8

Cryo-EM structure of actomyosin-5a-S1 with the full-length lever (nucleotide free)

• PDB DOI: https://doi.org/10.2210/pdb8OF8/pdb
• EM Map EMD-16850: EMDB EMDataResource

• Classification: MOTOR PROTEIN
• Organism(s): Mus musculus, Oryctolagus cuniculus
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2023-03-14 Released: 2024-09-25 
• Deposition Author(s): Gravett, M.S.C., Klebl, D.P., Harlen, O.G., Read, D.J., Harris, S.A., Muench, S.P., Peckham, M.
• Funding Organization(s): Wellcome Trust, Engineering and Physical Sciences Research Council

---

Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 7.50 Å
• Aggregation State: HELICAL ARRAY 
• Reconstruction Method: SINGLE PARTICLE 

Starting Models: in silico, experimental

Literature

Unveiling the Structural Dynamics of Myosin 5a: Cryo-EM Insights into the Motor Protein's Lever Conformations and Walking Mechanics

Gravett, M.S.C., Klebl, D.P., Harlen, O.G., Read, D.J., Harris, S.A., Muench, S.P., Peckham, M.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 10-mer - A6B3C1 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 10-mer - A5B3C1D1 Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Homo 3-mer - B3 

Local Symmetry: Helical - H  (Explore in 3D)
Local Stoichiometry: Homo 3-mer - B3 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 332.55 kDa 
• Atom Count: 15,859 
• Modelled Residue Count: 2,868 
• Deposited Residue Count: 2,928 
• Unique protein chains: 3

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Calmodulin-1	A, B, C, D, E, F	148	Mus musculus	Mutation(s): 0  Gene Names: Calm1, Calm, Cam, Cam1
UniProt
Find proteins for P0DP26 (Mus musculus) Explore P0DP26  Go to UniProtKB:  P0DP26

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Actin, alpha skeletal muscle	G [auth J], H [auth K], I [auth L]	375	Oryctolagus cuniculus	Mutation(s): 0  EC: 3.6.4
UniProt
Find proteins for P68135 (Oryctolagus cuniculus) Explore P68135  Go to UniProtKB:  P68135

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Unconventional myosin-Va	J [auth M]	915	Mus musculus	Mutation(s): 0  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

Small Molecules

Modified Residues  1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
HIC	G [auth J], H [auth K], I [auth L]	L-PEPTIDE LINKING	C7 H11 N3 O2		HIS

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 7.50 Å
• Aggregation State: HELICAL ARRAY 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	RELION	3.1

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-09-25 
Deposition Author(s): Gravett, M.S.C., Klebl, D.P., Harlen, O.G., Read, D.J., Harris, S.A., Muench, S.P., Peckham, M.

---

Funding Organization	Location	Grant Number
Wellcome Trust	United Kingdom	102174/B/13/Z
Wellcome Trust	United Kingdom	223125/Z/21/Z
Wellcome Trust	United Kingdom	108466/Z/15/Z
Engineering and Physical Sciences Research Council	United Kingdom	EP/T022167/1
Engineering and Physical Sciences Research Council	United Kingdom	EP/R013012

Revision History  

• Version 1.0: 2024-09-25
  Type: Initial release