12BL | pdb_000012bl

Moorella thermoacetica LarC in complex with P2TAD

• PDB DOI: https://doi.org/10.2210/pdb12BL/pdb
• EM Map EMD-76282: EMDB EMDataResource

• Classification: METAL BINDING PROTEIN
• Organism(s): Moorella thermoacetica ATCC 39073
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2026-03-25 Released: 2026-07-29 
• Deposition Author(s): Kim, K.H., Wolfe, R.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.33 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structural and Functional Analysis of LarC, a CTP-Dependent Cyclometallase Required for Nickel-Pincer Nucleotide Cofactor Biosynthesis

Wolfe, R., Turmo, A., Velasquez-Rivertte, S., Sui, D., Granados-Villanueva, D., Desguin, B., Hu, J., Hausinger, R.P., Kim, K.H.

(2026) Sci Adv 

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 6-mer - A3B3 Local Symmetry: Cyclic - C3  (Explore in 3D)
Local Stoichiometry: Homo 3-mer - A3 

Local Symmetry: Cyclic - C3  (Explore in 3D)
Local Stoichiometry: Homo 3-mer - A3 

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

Biological Assembly Evidence: electron microscopy

Macromolecule Content 

• Total Structure Weight: 266.28 kDa 
• Atom Count: 12,351 
• Modeled Residue Count: 1,641 
• Deposited Residue Count: 2,484 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Pyridinium-3,5-bisthiocarboxylic acid mononucleotide nickel insertion protein	A [auth D], B [auth E], C [auth F], D [auth B], E [auth A], F [auth C]	414	Moorella thermoacetica ATCC 39073	Mutation(s): 0  Gene Names: larC, Moth_2512 EC: 4.99.1.12
UniProt
Find proteins for Q2RFJ5 (Moorella thermoacetica (strain ATCC 39073 / JCM 9320)) Explore Q2RFJ5  Go to UniProtKB:  Q2RFJ5

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
A1DCH( Subject of Investigation/LOI)	G [auth A]	pyridinium-3,5-bisthiocarboxylic acid adenine dinucleotide C22 H29 N6 O15 P2 S2 FPJAMMGMDPXFRV-UTTBTQDYSA-O

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.33 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: 2026-07-29 
Deposition Author(s): Kim, K.H., Wolfe, R.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R01 GM128959
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R35 GM140931

Revision History  

• Version 1.0: 2026-07-29
  Type: Initial release