8V30

Smooth Muscle Gamma Actin (ACTG2) Filament Mutant R40C

• PDB DOI: https://doi.org/10.2210/pdb8V30/pdb
• EM Map EMD-42939: EMDB EMDataResource

• Classification: STRUCTURAL PROTEIN
• Organism(s): Homo sapiens, synthetic construct
• Expression System: Homo sapiens
• Mutation(s): Yes 


• Deposited: 2023-11-25 Released: 2024-05-01 
• Deposition Author(s): Palmer, N.J., Carman, P.J., Ceron, R.H., Dominguez, R.
• Funding Organization(s): National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.54 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Literature

Molecular Mechanisms of ACTG2 Mutations Linked to Visceral Myopathy

Ceron, R.H., Baez-Cruz, F.A., Palmer, N.J., Carman, P.J., Boczkowska, M., Heuckeroth, R.O., Ostap, E.M., Dominguez, R.

To be published.

Biological Assembly 1  

Global Symmetry: Helical - H  (Explore in 3D)
Global Stoichiometry: Hetero 10-mer - A5B5 Pseudo Symmetry: Asymmetric - C1 
Pseudo Stoichiometry: Hetero 10-mer - A5B1C1D1E1F1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 215.71 kDa 
• Atom Count: 14,910 
• Modelled Residue Count: 1,895 
• Deposited Residue Count: 1,915 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Actin, gamma-enteric smooth muscle	A, B, C, D, E	376	Homo sapiens	Mutation(s): 1  Gene Names: ACTG2, ACTA3, ACTL3, ACTSG EC: 3.6.4
UniProt & NIH Common Fund Data Resources
Find proteins for P63267 (Homo sapiens) Explore P63267  Go to UniProtKB:  P63267
PHAROS:  P63267 GTEx:  ENSG00000163017

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Phalloidin	F, G, H, I, J	7	synthetic construct	Mutation(s): 0

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
ADP	K [auth A], M [auth B], P [auth C], Q [auth D], S [auth E]	ADENOSINE-5'-DIPHOSPHATE C10 H15 N5 O10 P2 XTWYTFMLZFPYCI-KQYNXXCUSA-N
MG	L [auth A], N [auth B], O [auth C], R [auth D], T [auth E]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Modified Residues  2 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
HIC	A, B, C, D, E	L-PEPTIDE LINKING	C7 H11 N3 O2		HIS
HYP	F, G, H, I, J	L-PEPTIDE LINKING	C5 H9 N O3		PRO

Biologically Interesting Molecules (External Reference) 1 Unique

Entity ID: 2
ID	Chains	Name	Type/Class	2D Diagram	3D Interactions
PRD_002366	F, G, H, I, J	Phalloidin	Peptide-like / Toxin

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.54 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC	4.0
MODEL REFINEMENT	PHENIX	1.20.1

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-05-01 
Deposition Author(s): Palmer, N.J., Carman, P.J., Ceron, R.H., Dominguez, R.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of Diabetes and Digestive and Kidney Disease (NIH/NIDDK)	United States	--

Revision History  

• Version 1.0: 2024-05-01
  Type: Initial release