22XQ | pdb_000022xq

structure of a permease

• PDB DOI: https://doi.org/10.2210/pdb22XQ/pdb
• EM Map EMD-68758: EMDB EMDataResource

• Classification: TRANSPORT PROTEIN
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli
• Mutation(s): No 


• Deposited: 2026-01-27 Released: 2026-11-04 
• Deposition Author(s): Jinru, Z., Jinru, Z.
• Funding Organization(s): Other private

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Experimental Data Snapshot

• Method: ELECTRON MICROSCOPY
• Resolution: 2.68 Å
• Aggregation State: PARTICLE 
• Reconstruction Method: SINGLE PARTICLE 

Starting Model: in silico

Literature

structure of a permease

jinru, Z., jinru, Z.

To be published.

Biological Assembly 1  

Global Symmetry: Cyclic - C2  (Explore in 3D)
Global Stoichiometry: Homo 2-mer - A2 

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content 

• Total Structure Weight: 102.27 kDa 
• Atom Count: 6,804 
• Modeled Residue Count: 918 
• Deposited Residue Count: 964 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
PTS system mannitol-specific EIICBA component	A, B	482	Escherichia coli K-12	Mutation(s): 0  Gene Names: mtlA, b3599, JW3573 EC: 2.7.1.197
UniProt
Find proteins for P00550 (Escherichia coli (strain K12)) Explore P00550  Go to UniProtKB:  P00550

Small Molecules

Ligands 1 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
MTL (Subject of Investigation/LOI)	C [auth A], D [auth B]	D-MANNITOL C6 H14 O6 FBPFZTCFMRRESA-KVTDHHQDSA-N

Experimental Data & Validation

Experimental Data

• Method: ELECTRON MICROSCOPY
• Resolution: 2.68 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: 2026-11-04 
Deposition Author(s): Jinru, Z., Jinru, Z.

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Funding Organization	Location	Grant Number
Other private	China	--

Revision History  

• Version 1.0: 2026-11-04
  Type: Initial release