9Q7K | pdb_00009q7k

Pointed end of Cofilin-2 Bound F-actin

PDB DOI: https://doi.org/10.2210/pdb9Q7K/pdb
EM Map EMD-72305: EMDB EMDataResource

Classification: PROTEIN FIBRIL
Organism(s): Oryctolagus cuniculus, Homo sapiens
Expression System: Escherichia coli
Mutation(s): No

Deposited: 2025-08-24 Released: 2026-03-04
Deposition Author(s): Palmer, N.J., Dominguez, R.
Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

Experimental Data Snapshot

Method: ELECTRON MICROSCOPY
Resolution: 3.13 Å
Aggregation State: FILAMENT
Reconstruction Method: SINGLE PARTICLE

wwPDB Validation 3D Report Full Report

Validation slider image for 9Q7K

This is version 1.0 of the entry. See complete history.

Literature

Mechanisms of Actin Filament Depolymerization by Cyclase Associated Protein-1 and Cofilin-2

Palmer, N.J., Boczkowska, M., Rebowski, G., Dominguze, R.

To be published.

Macromolecule Content

Total Structure Weight: 305.98 kDa
Atom Count: 20,955
Modeled Residue Count: 2,640
Deposited Residue Count: 2,710
Unique protein chains: 2

Macromolecules

Find similar proteins by:

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Actin, alpha skeletal muscle	A, B, C, D, E	376	Oryctolagus cuniculus	Mutation(s): 0 EC: 3.6.4
UniProt
Find proteins for P68135 (Oryctolagus cuniculus) Explore P68135 Go to UniProtKB: P68135
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P68135
Sequence Annotations Expand
Reference Sequence

Find similar proteins by:

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Cofilin-2	F [auth a], G [auth b], H [auth c], I [auth d], J [auth e]	166	Homo sapiens	Mutation(s): 0 Gene Names: CFL2
UniProt & NIH Common Fund Data Resources
Find proteins for Q9Y281 (Homo sapiens) Explore Q9Y281 Go to UniProtKB: Q9Y281
PHAROS: Q9Y281 GTEx: ENSG00000165410
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	Q9Y281
Sequence Annotations Expand
Reference Sequence

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram	3D Interactions
ADP Query on ADP Download:Ideal Coordinates CCD File SDF format, chain S [auth E] SDF format, chain Q [auth D] SDF format, chain O [auth C] SDF format, chain M [auth B] SDF format, chain K [auth A] MOL2 format, chain S [auth E] MOL2 format, chain Q [auth D] MOL2 format, chain O [auth C] MOL2 format, chain M [auth B] MOL2 format, chain K [auth A] mmCIF format, chain S [auth E] mmCIF format, chain Q [auth D] mmCIF format, chain O [auth C] mmCIF format, chain M [auth B] mmCIF format, chain K [auth A]	K [auth A], M [auth B], O [auth C], Q [auth D], S [auth E]	ADENOSINE-5'-DIPHOSPHATE C₁₀ H₁₅ N₅ O₁₀ P₂ XTWYTFMLZFPYCI-KQYNXXCUSA-N		Interactions Focus chain K [auth A] Focus chain M [auth B] Focus chain O [auth C] Focus chain Q [auth D] Focus chain S [auth E] Interactions & Density Focus chain K [auth A] Focus chain M [auth B] Focus chain O [auth C] Focus chain Q [auth D] Focus chain S [auth E]
MG Query on MG Download:Ideal Coordinates CCD File SDF format, chain T [auth E] SDF format, chain R [auth D] SDF format, chain P [auth C] SDF format, chain N [auth B] SDF format, chain L [auth A] MOL2 format, chain T [auth E] MOL2 format, chain R [auth D] MOL2 format, chain P [auth C] MOL2 format, chain N [auth B] MOL2 format, chain L [auth A] mmCIF format, chain T [auth E] mmCIF format, chain R [auth D] mmCIF format, chain P [auth C] mmCIF format, chain N [auth B] mmCIF format, chain L [auth A]	L [auth A], N [auth B], P [auth C], R [auth D], T [auth E]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N		Interactions Focus chain L [auth A] Focus chain N [auth B] Focus chain P [auth C] Focus chain R [auth D] Focus chain T [auth E] Interactions & Density Focus chain L [auth A] Focus chain N [auth B] Focus chain P [auth C] Focus chain R [auth D] Focus chain T [auth E]

Modified Residues 1 Unique
ID	Chains	Type	Formula	2D Diagram	Parent
HIC Query on HIC	A, B, C, D, E	L-PEPTIDE LINKING	C₇ H₁₁ N₃ O₂		HIS

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 3.13 Å
Aggregation State: FILAMENT
Reconstruction Method: SINGLE PARTICLE

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21.2_5419
RECONSTRUCTION	cryoSPARC

Structure Validation

View Full Validation Report

View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-03-04

Deposition Author(s):

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	--

Revision History (Full details and data files)

Version 1.0: 2026-03-04
Type: Initial release

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RCSB PDB Core Operations are funded by the U.S. National Science Foundation (DBI-2321666), the US Department of Energy (DE-SC0019749), and the National Cancer Institute, National Institute of Allergy and Infectious Diseases, and National Institute of General Medical Sciences of the National Institutes of Health under grant R01GM157729. RCSB PDB uses resources of the National Energy Research Scientific Computing Center (NERSC), a Department of Energy User Facility.