12BW | pdb_000012bw

Gelsolin domain G2 transitionally bound to F-actin

PDB DOI: https://doi.org/10.2210/pdb12BW/pdb
EM Map EMD-76298: EMDB EMDataResource

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

Deposited: 2026-03-26 Released: 2026-07-08
Deposition Author(s): Saks, A.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: 2.86 Å
Aggregation State: FILAMENT
Reconstruction Method: SINGLE PARTICLE

Starting Models: experimental
View more details

wwPDB Validation 3D Report Full Report

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

Literature

Domains G2G3 Prime the Actin Filament for Severing by Gelsolin

Saks, A.J., Boczkowska, M., Barrie, K.R., Robinson, R.C., Dominguez, R.

To be published.

Macromolecule Content

Total Structure Weight: 367.98 kDa
Atom Count: 24,389
Modeled Residue Count: 3,091
Deposited Residue Count: 3,262
Unique protein chains: 2

Macromolecules

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| 3D Structure

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Actin, alpha skeletal muscle	A, B, C, D, E A, B, C, D, E, F, G, H	377	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

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| 3D Structure

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Gelsolin	I	246	Homo sapiens	Mutation(s): 0 Gene Names: GSN
UniProt & NIH Common Fund Data Resources
Find proteins for P06396 (Homo sapiens) Explore P06396 Go to UniProtKB: P06396
PHAROS: P06396 GTEx: ENSG00000148180
Entity Groups
Sequence Clusters	30% Identity 50% Identity 70% Identity 90% Identity 95% Identity 100% Identity
UniProt Group	P06396
Sequence Annotations Expand
Reference Sequence

Small Molecules

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

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

Experimental Data & Validation

Experimental Data

Method: ELECTRON MICROSCOPY
Resolution: 2.86 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

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View more in-depth experimental data

Entry History

& Funding Information

Deposition Data

Released Date: 2026-07-08

Deposition Author(s):

Saks, A.J.

Dominguez, R.

Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	5R01GM152412-02
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	5R01GM073791-20
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	5T32GM132039-07

Revision History (Full details and data files)

Version 1.0: 2026-07-08
Type: Initial release

12BW | pdb_000012bw

Gelsolin domain G2 transitionally bound to F-actin

Literature

Domains G2G3 Prime the Actin Filament for Severing by Gelsolin

Biological Assembly 1

Macromolecules

Entity ID: 1

UniProt

Entity Groups

Sequence Annotations

Expand

Entity ID: 2

UniProt & NIH Common Fund Data Resources