8SPR

The cryo-EM structure of the EcBAM/EspP(beta1-12) complex

• PDB DOI: https://doi.org/10.2210/pdb8SPR/pdb
• EM Map EMD-40682: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN/Hydrolase
• Organism(s): Escherichia coli, Escherichia coli 0.1288, Escherichia coli O157
• Expression System: Escherichia coli BL21(DE3)
• Mutation(s): No 


• Deposited: 2023-05-03 Released: 2024-05-08 
• Deposition Author(s): Wu, R., Noinaj, N.
• 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: 3.90 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

BAM orchestrates OMP biogenesis using a beta-templating mechanism

Wu, R., Ryoo, D., Kuo, K.M., Gumbart, J.C., Noinaj, N.

To be published.

Biological Assembly 1  

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 6-mer - A1B1C1D1E1F1 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: electron microscopy

Macromolecule Content

• Total Structure Weight: 237.35 kDa 
• Atom Count: 15,032 
• Modelled Residue Count: 1,932 
• Deposited Residue Count: 2,153 
• Unique protein chains: 6

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Outer membrane protein assembly factor BamA	A	787	Escherichia coli	Mutation(s): 0  Gene Names: bamA
UniProt
Find proteins for P0A940 (Escherichia coli (strain K12)) Explore P0A940  Go to UniProtKB:  P0A940

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Outer membrane protein assembly factor BamB	B	372	Escherichia coli	Mutation(s): 0  Gene Names: bamB, yfgL, b2512, JW2496
UniProt
Find proteins for P77774 (Escherichia coli (strain K12)) Explore P77774  Go to UniProtKB:  P77774

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Outer membrane protein assembly factor BamC	C	319	Escherichia coli 0.1288	Mutation(s): 0  Gene Names: bamC, dapX, nlpB, b2477, JW2462
UniProt
Find proteins for P0A903 (Escherichia coli (strain K12)) Explore P0A903  Go to UniProtKB:  P0A903

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Outer membrane protein assembly factor BamD	D	225	Escherichia coli	Mutation(s): 0  Gene Names: bamD
UniProt
Find proteins for P0AC02 (Escherichia coli (strain K12)) Explore P0AC02  Go to UniProtKB:  P0AC02

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
Outer membrane protein assembly factor BamE	E	96	Escherichia coli	Mutation(s): 0  Gene Names: bamE, smpA
UniProt
Find proteins for P0A937 (Escherichia coli (strain K12)) Explore P0A937  Go to UniProtKB:  P0A937

Entity ID: 6
Molecule	Chains	Sequence Length	Organism	Details	Image
Serine protease EspP	F	354	Escherichia coli O157	Mutation(s): 0  Gene Names: espP, L7020, ECO57PM78 EC: 3.4.21
UniProt
Find proteins for Q7BSW5 (Escherichia coli O157:H7) Explore Q7BSW5  Go to UniProtKB:  Q7BSW5

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.90 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX	1.18rc1_3777:

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2024-05-08 
Deposition Author(s): Wu, R., Noinaj, N.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	1R01GM127884
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	1R01GM127896
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	1R01GM123169

Revision History  

• Version 1.0: 2024-05-08
  Type: Initial release
  
• Version 1.1: 2024-10-09
  Changes: Data collection, Structure summary