Biological Assembly 1  

 3D View: Structure | Ligand Interaction

Global Symmetry: Asymmetric - C1 
Global Stoichiometry: Hetero 14-mer - A6B2C2D2E2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: microscopy

Macromolecule Content

• Total Structure Weight: 296.37 kDa 
• Atom Count: 17433 
• Residue Count: 2404 
• Unique protein chains: 5

6XBD

Cryo-EM structure of MlaFEDB in nanodiscs with phospholipid substrates

• DOI: 10.2210/pdb6XBD/pdb
• EMDataResource: EMD-22116

• Classification: LIPID TRANSPORT
• Organism(s): Escherichia coli DEC6A, Escherichia coli K-12, Homo sapiens
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2020-06-05 Released: 2020-07-01 
• Deposition Author(s): Coudray, N., Isom, G.L., MacRae, M.R., Saiduddin, M., Ekiert, D.C., Bhabha, G.
• Funding Organization(s): National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS), Other private, American Heart Association, National Institutes of Health/National Center for Research Resources (NIH/NCRR), National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.05 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Literature

Structure of MlaFEDB lipid transporter reveals an ABC exporter fold and two bound phospholipids

Coudray, N., Isom, G.L., MacRae, M.R., Saiduddin, M., Ekiert, D.C., Bhabha, G.

To be published.

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Phospholipid ABC transporter-binding protein MlaD	A, B, C, D, E, F	201	Escherichia coli DEC6A	Mutation(s): 0  Gene Names: mlaD, ECDEC6A_3942
Find proteins for H4UPP8 (Escherichia coli DEC6A) Explore H4UPP8  Go to UniProtKB:  H4UPP8

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
Phospholipid ABC transporter permease protein MlaE	G, H	260	Escherichia coli DEC6A	Mutation(s): 0  Gene Names: mlaE, ECDEC6A_3943
Find proteins for H4UPP9 (Escherichia coli DEC6A) Explore H4UPP9  Go to UniProtKB:  H4UPP9

Entity ID: 3
Molecule	Chains	Sequence Length	Organism	Details	Image
Phospholipid transport system ATP-binding protein MlaF	I, J	269	Escherichia coli DEC6A	Mutation(s): 0  Gene Names: mlaF, ECDEC6A_3944 EC: 3.6.3
Find proteins for H4UPQ0 (Escherichia coli DEC6A) Explore H4UPQ0  Go to UniProtKB:  H4UPQ0

Entity ID: 4
Molecule	Chains	Sequence Length	Organism	Details	Image
Phospholipid ABC transporter-binding protein MlaB	K, L	97	Escherichia coli K-12	Mutation(s): 0  Gene Names: mlaB, ECDEC6A_3940
Find proteins for H4UPP6 (Escherichia coli DEC6A) Explore H4UPP6  Go to UniProtKB:  H4UPP6

Entity ID: 5
Molecule	Chains	Sequence Length	Organism	Details	Image
MSP1D1	M, N	164	Homo sapiens	Mutation(s): 0

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PEF	G	DI-PALMITOYL-3-SN-PHOSPHATIDYLETHANOLAMINE C37 H74 N O8 P SLKDGVPOSSLUAI-PGUFJCEWSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.05 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Structure Validation

Entry History & Funding Information

Deposition Data

• Deposited Date: 2020-06-05 
• Released Date: 2020-07-01 
Deposition Author(s): Coudray, N., Isom, G.L., MacRae, M.R., Saiduddin, M., Ekiert, D.C., Bhabha, G.

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Funding Organization	Location	Grant Number
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R00GM112982
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	R35GM128777
Other private	United States	PEW-00033055
American Heart Association	United States	20POST35210202
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	T32 GM088118
Other private	United States	DFS 20 16
Other private	United States	SF349247
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	GM103310
Other private	United States	F00316
National Institutes of Health/National Institute of General Medical Sciences (NIH/NIGMS)	United States	OD019994
National Institutes of Health/National Center for Research Resources (NIH/NCRR)	United States	U24GM129547
National Institutes of Health/National Human Genome Research Institute (NIH/NHGRI)	United States	GM103311

Revision History 

• Version 1.0: 2020-07-01
  Type: Initial release
  
• Version 1.1: 2020-11-25
  Changes: Experimental preparation, Source and taxonomy, Structure summary