7VTZ

Chitoporin from Escherichia coli

• PDB DOI: https://doi.org/10.2210/pdb7VTZ/pdb

• Classification: MEMBRANE PROTEIN
• Organism(s): Escherichia coli K-12
• Expression System: Escherichia coli
• Mutation(s): No 
• Membrane Protein: Yes  OPMPDBTM


• Deposited: 2021-11-01 Released: 2022-11-09 
• Deposition Author(s): Amornloetwattana, R., Soysa, H.S.M., Suginta, W., van den Berg, B.
• Funding Organization(s): European Union (EU)

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.286 
• R-Value Work: 0.236 
• R-Value Observed: 0.239 

Literature

Structure of chitoporin from Escherichia coli

Soysa, H.S.M., Suginta, W.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Biological Assembly Evidence: gel filtration

Macromolecule Content

• Total Structure Weight: 51.63 kDa 
• Atom Count: 3,666 
• Modelled Residue Count: 435 
• Deposited Residue Count: 442 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chitoporin	A	442	Escherichia coli K-12	Mutation(s): 0  Gene Names: chiP, ybfM, b0681, JW0667 Membrane Entity: Yes
UniProt
Find proteins for P75733 (Escherichia coli (strain K12)) Explore P75733  Go to UniProtKB:  P75733

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
LMT	F [auth A]	DODECYL-BETA-D-MALTOSIDE C24 H46 O11 NLEBIOOXCVAHBD-QKMCSOCLSA-N
PT (Subject of Investigation/LOI)	B [auth A], C [auth A], D [auth A], E [auth A]	PLATINUM (II) ION Pt HRGDZIGMBDGFTC-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.10 Å
• R-Value Free: 0.286 
• R-Value Work: 0.236 
• R-Value Observed: 0.239 
• Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 66.913	α = 90
b = 58.673	β = 110.384
c = 95.028	γ = 90

Software Package:

Software Name	Purpose
PHENIX	refinement
xia2	data reduction
Aimless	data scaling
AutoSol	phasing

Structure Validation

Entry History & Funding Information

Deposition Data

• Released Date: 2022-11-09 
Deposition Author(s): Amornloetwattana, R., Soysa, H.S.M., Suginta, W., van den Berg, B.

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Funding Organization	Location	Grant Number
European Union (EU)	European Union	--

Revision History  

• Version 1.0: 2022-11-09
  Type: Initial release
  
• Version 2.0: 2023-10-11
  Type: Coordinate replacement
  Reason: Ligand identity
  Changes: Advisory, Atomic model, Author supporting evidence, Data collection, Derived calculations, Non-polymer description, Refinement description, Source and taxonomy, Structure summary