9QHK | pdb_00009qhk

Nucleotide-free wild type Wzm-Wzt from Mycobacterium abscessus in nanodiscs

• PDB DOI: https://doi.org/10.2210/pdb9QHK/pdb
• EM Map EMD-53172: EMDB EMDataResource

• Classification: MEMBRANE PROTEIN
• Organism(s): Mycobacteroides abscessus
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2025-03-15 Released: 2026-03-11 
• Deposition Author(s): Garaeva, A.A., Fabianova, V., Savkova, K., Huszar, S., Xue, X., Lowary, T.L., Mikusova, K., Seeger, M.A.
• Funding Organization(s): European Research Council (ERC), Swiss National Science Foundation, European Union (EU), University of Zurich

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 3.57 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Starting Model: experimental

Literature

Structural basis of lipid-linked galactan export by the mycobacterial ABC transporter Wzm-Wzt

Garaeva, A.A., Fabianova, V., Savkova, K., Huszar, S., Xue, X., Lowary, T.L., Mikusova, K., Seeger, M.A.

(2026) Nat Commun 

• DOI: https://doi.org/10.1038/s41467-026-70429-9

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Hetero 4-mer - A2B2 

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

Biological Assembly Evidence: electron microscopy, gel filtration

Macromolecule Content 

• Total Structure Weight: 129.49 kDa 
• Atom Count: 8,476 
• Modeled Residue Count: 1,054 
• Deposited Residue Count: 1,140 
• Unique protein chains: 2

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ABC transporter permease	A, B	307	Mycobacteroides abscessus	Mutation(s): 0  Gene Names: D2E76_07265
UniProt
Find proteins for A0ABD7HS64 (Mycobacteroides abscessus) Explore A0ABD7HS64  Go to UniProtKB:  A0ABD7HS64

Entity ID: 2
Molecule	Chains	Sequence Length	Organism	Details	Image
ABC transporter ATP-binding protein	C, D	263	Mycobacteroides abscessus	Mutation(s): 0  Gene Names: tagH, DDJ71_20070, ERS075527_00637, ERS075579_04253 EC: 3.6.3.40
UniProt
Find proteins for A0A0U0YYE2 (Mycobacteroides abscessus) Explore A0A0U0YYE2  Go to UniProtKB:  A0A0U0YYE2

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
PTY (Subject of Investigation/LOI)	E [auth A], F [auth B]	PHOSPHATIDYLETHANOLAMINE C40 H80 N O8 P NJGIRBISCGPRPF-KXQOOQHDSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 3.57 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

EM Software:

Task	Software Package	Version
MODEL REFINEMENT	PHENIX
RECONSTRUCTION	cryoSPARC

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2026-03-11 
Deposition Author(s): Garaeva, A.A., Fabianova, V., Savkova, K., Huszar, S., Xue, X., Lowary, T.L., Mikusova, K., Seeger, M.A.

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Funding Organization	Location	Grant Number
European Research Council (ERC)	European Union	772190
Swiss National Science Foundation	Switzerland	PP00P3_170625
European Union (EU)	European Union	NextGenerationEU, Recovery and Resilience Plan for Slovakia, project No. 09I01-03-V03- 00001
University of Zurich	Switzerland	FK-21-041

Revision History  

• Version 1.0: 2026-03-11
  Type: Initial release