9TNZ | pdb_00009tnz

SP100 CARD filament

• PDB DOI: https://doi.org/10.2210/pdb9TNZ/pdb
• EM Map EMD-56096: EMDB EMDataResource

• Classification: IMMUNE SYSTEM
• Organism(s): Escherichia coli K-12, Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2025-12-16 Released: 2026-02-11 
• Deposition Author(s): Rabl, J., Aird, E., Corn, J.
• Funding Organization(s): European Research Council (ERC), Swiss National Science Foundation, European Molecular Biology Organization (EMBO)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.52 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

Starting Model: in silico

Literature

SP100 CARD filament

Rabl, J., Aird, E., Corn, J.

To be published.

Biological Assembly 1  

Global Symmetry: Helical - H  (Explore in 3D)
Global Stoichiometry: Homo 26-mer - A26 

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 1,530.73 kDa 
• Atom Count: 21,502 
• Modeled Residue Count: 2,574 
• Deposited Residue Count: 13,650 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Maltose/maltodextrin-binding periplasmic protein,Nuclear autoantigen Sp-100	A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U [auth V], V [auth W], W [auth X], X [auth Y], Y [auth Z], Z [auth AA]	525	Escherichia coli K-12, Homo sapiens This entity is chimeric	Mutation(s): 0  Gene Names: malE, b4034, JW3994, SP100
UniProt & NIH Common Fund Data Resources
Find proteins for P0AEX9 (Escherichia coli (strain K12)) Explore P0AEX9  Go to UniProtKB:  P0AEX9
Find proteins for P23497 (Homo sapiens) Explore P23497  Go to UniProtKB:  P23497
PHAROS:  P23497 GTEx:  ENSG00000067066
UniProt Groups	P23497P0AEX9

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.52 Å
• Aggregation State: FILAMENT 
• Reconstruction Method: HELICAL 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.21rc1_4985
RECONSTRUCTION	cryoSPARC	4.4.0

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-02-11 
Deposition Author(s): Rabl, J., Aird, E., Corn, J.

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Funding Organization	Location	Grant Number
European Research Council (ERC)	European Union	855741-DDREAMM-ERC-2019-SyG
Swiss National Science Foundation	Switzerland	310030_188858
European Molecular Biology Organization (EMBO)	European Union	ALTF 144-2021

Revision History  

• Version 1.0: 2026-02-11
  Type: Initial release