9P4S | pdb_00009p4s

HmuS heme dechelatase: disordered domain 1, heme free.

• PDB DOI: https://doi.org/10.2210/pdb9P4S/pdb
• EM Map EMD-71280: EMDB EMDataResource

• Classification: METAL TRANSPORT
• Organism(s): Bacteroides thetaiotaomicron
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2025-06-17 Released: 2025-09-24 
• Deposition Author(s): Gauvin, C.C., Nath, A.K., Rodrigues da Silva, R., Akpoto, E., Dubois, J.L., Lawrence, C.M.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), National Science Foundation (NSF, United States)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.55 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Starting Model: in silico

Literature

HmuS Heme Dechelatase: Disordered Domain 1, Heme Free

Nath, A.K., Rodrigues da Silva, R., Gauvin, C.C., Akpoto, E., Lawrence, C.M., Dubois, J.L.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Monomer - A1 

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

Biological Assembly Evidence: electron microscopy, gel filtration

Macromolecule Content 

• Total Structure Weight: 162.47 kDa 
• Atom Count: 8,905 
• Modeled Residue Count: 1,120 
• Deposited Residue Count: 1,463 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
HmuS heme dechelatase	A	1,463	Bacteroides thetaiotaomicron	Mutation(s): 0  Gene Names: GAN91_17490, GAO51_10745, KQP68_24275
UniProt
Find proteins for A0A0P0FP54 (Bacteroides thetaiotaomicron) Explore A0A0P0FP54  Go to UniProtKB:  A0A0P0FP54

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
NA	B [auth A], C [auth A]	SODIUM ION Na FKNQFGJONOIPTF-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.55 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.20.1
RECONSTRUCTION	cryoSPARC	4.0

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2025-09-24 
Deposition Author(s): Gauvin, C.C., Nath, A.K., Rodrigues da Silva, R., Akpoto, E., Dubois, J.L., Lawrence, C.M.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	--
National Science Foundation (NSF, United States)	United States	DBI-1828765
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	P30GM140963

Revision History  

• Version 1.0: 2025-09-24
  Type: Initial release