9SWJ | pdb_00009swj

Human ADP-forming succinyl-CoA ligase complex SUCLG1-SUCLA2 bound to coenzyme A

• PDB DOI: https://doi.org/10.2210/pdb9SWJ/pdb
• EM Map EMD-55309: EMDB EMDataResource

• Classification: TRANSFERASE
• Organism(s): Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2025-10-07 Released: 2025-10-22 
• Deposition Author(s): Bailey, H.J., McCorvie, T.J., Shrestha, L., Rembeza, E., Strain-Damerell, C., Burgess-Brown, N., Yue, W.W.
• Funding Organization(s): Wellcome Trust

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.70 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Starting Model: experimental

Literature

Human ADP-forming succinyl-CoA ligase complex SUCLG1-SUCLA2 bound to coenzyme A

Bailey, H.J., McCorvie, T.J., Yue, W.W.

To be published.

Biological Assembly 1  

Global Symmetry: Dihedral - D2  (Explore in 3D)
Global Stoichiometry: Hetero 8-mer - A4B4 

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 322.75 kDa 
• Atom Count: 21,968 
• Modeled Residue Count: 2,900 
• Deposited Residue Count: 2,968 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Succinate--CoA ligase [ADP/GDP-forming] subunit alpha, mitochondrial	A [auth C], C [auth A], E, G	305	Homo sapiens	Mutation(s): 0  Gene Names: SUCLG1 EC: 6.2.1.4 (PDB Primary Data), 6.2.1.5 (PDB Primary Data), 6.2.1.9 (UniProt), 6.2.1 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for P53597 (Homo sapiens) Explore P53597  Go to UniProtKB:  P53597
PHAROS:  P53597 GTEx:  ENSG00000163541

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Succinate--CoA ligase [ADP-forming] subunit beta, mitochondrial	B [auth D], D [auth B], F, H	437	Homo sapiens	Mutation(s): 0  Gene Names: SUCLA2 EC: 6.2.1.5 (PDB Primary Data), 6.2.1.9 (UniProt), 6.2.1 (UniProt)
UniProt & NIH Common Fund Data Resources
Find proteins for Q9P2R7 (Homo sapiens) Explore Q9P2R7  Go to UniProtKB:  Q9P2R7
PHAROS:  Q9P2R7 GTEx:  ENSG00000136143

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
COA (Subject of Investigation/LOI)	I [auth C], J [auth A], K [auth E], L [auth G]	COENZYME A C21 H36 N7 O16 P3 S RGJOEKWQDUBAIZ-IBOSZNHHSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.70 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
RECONSTRUCTION	cryoSPARC
MODEL REFINEMENT	PHENIX

Structure Validation

Entry History 

& Funding Information

Deposition Data

• Released Date: 2025-10-22 
Deposition Author(s): Bailey, H.J., McCorvie, T.J., Shrestha, L., Rembeza, E., Strain-Damerell, C., Burgess-Brown, N., Yue, W.W.

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Funding Organization	Location	Grant Number
Wellcome Trust	United Kingdom	--

Revision History  

• Version 1.0: 2025-10-22
  Type: Initial release