9RGN | pdb_00009rgn

SsCl at pH 6.5 + IVM - Partially opened

• PDB DOI: https://doi.org/10.2210/pdb9RGN/pdb
• EM Map EMD-53951: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Sarcoptes scabiei
• Expression System: Spodoptera frugiperda
• Mutation(s): No 


• Deposited: 2025-06-06 Released: 2026-03-18 
• Deposition Author(s): Kleiz-Ferreira, J., Brams, M., Harrison, P.J., Nys, M., Gallagher, C., Donze, Y., Quigley, A., Bertrand, D., Ulens, C.
• Funding Organization(s): KU Leuven, Research Foundation - Flanders (FWO)

---

Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.10 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

SsCl at pH 6.5 + IVM - Partially opened

Kleiz-Ferreira, J., Brams, M., Harrison, P.J., Nys, M., Gallagher, C., Donze, Y., Quigley, A., Bertrand, D., Ulens, C.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C5  (Explore in 3D)
Global Stoichiometry: Homo 5-mer - A5 

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 203.2 kDa 
• Atom Count: 14,256 
• Modeled Residue Count: 1,655 
• Deposited Residue Count: 1,665 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
pH gated chloride channel	A, B, C, D, E	333	Sarcoptes scabiei	Mutation(s): 0
UniProt
Find proteins for A8SDP7 (Sarcoptes scabiei) Explore A8SDP7  Go to UniProtKB:  A8SDP7

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
IVM (Subject of Investigation/LOI)	F [auth A], G [auth A], H [auth B], I [auth C], J [auth D]	(2aE,4E,5'S,6S,6'R,7S,8E,11R,13R,15S,17aR,20R,20aR,20bS)-6'-[(2S)-butan-2-yl]-20,20b-dihydroxy-5',6,8,19-tetramethyl-17 -oxo-3',4',5',6,6',10,11,14,15,17,17a,20,20a,20b-tetradecahydro-2H,7H-spiro[11,15-methanofuro[4,3,2-pq][2,6]benzodioxacy clooctadecine-13,2'-pyran]-7-yl 2,6-dideoxy-4-O-(2,6-dideoxy-3-O-methyl-alpha-L-arabino-hexopyranosyl)-3-O-methyl-alpha-L-arabino-hexopyranoside C48 H74 O14 AZSNMRSAGSSBNP-XPNPUAGNSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.10 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-03-18 
Deposition Author(s): Kleiz-Ferreira, J., Brams, M., Harrison, P.J., Nys, M., Gallagher, C., Donze, Y., Quigley, A., Bertrand, D., Ulens, C.

---

Funding Organization	Location	Grant Number
KU Leuven	Belgium	C14/23/128
Research Foundation - Flanders (FWO)	Belgium	G087921N

Revision History  

• Version 1.0: 2026-03-18
  Type: Initial release