7VU0 | pdb_00007vu0

Chitoporin from Escherichia coli

• PDB DOI: https://doi.org/10.2210/pdb7VU0/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): Suginta, W., Soysa, H.S.M., Amornloetwattana, R., van den Berg, B.
• Funding Organization(s): Not funded

---

Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free: 
  0.253 (Depositor), 0.250 (DCC) 
• R-Value Work: 
  0.215 (Depositor), 0.220 (DCC) 
• R-Value Observed: 
  0.217 (Depositor) 

Starting Model: experimental

Literature

Chitoporin from Escherichia coli

Suginta, W., Soysa, H.S.M., Amornloetwattana, R., van den Berg, B.

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

Biological Assembly 2  

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

Biological assembly 2 assigned by authors.

Macromolecule Content 

• Total Structure Weight: 117.82 kDa 
• Atom Count: 8,223 
• Modeled Residue Count: 870 
• Deposited Residue Count: 884 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
Chitoporin	A, B	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 3 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
DMU	C [auth A], D [auth A], EA [auth B], FA [auth B]	DECYL-BETA-D-MALTOPYRANOSIDE C22 H42 O11 WOQQAWHSKSSAGF-WXFJLFHKSA-N
C8E	AA [auth A], AB [auth B], BB [auth B], CB [auth B], DB [auth B], E [auth A], EB [auth B], F [auth A], FB [auth B], G [auth A], GA [auth B], H [auth A], HA [auth B], I [auth A], IA [auth B], J [auth A], JA [auth B], K [auth A], KA [auth B], L [auth A], LA [auth B], M [auth A], MA [auth B], N [auth A], NA [auth B], O [auth A], OA [auth B], P [auth A], PA [auth B], Q [auth A], QA [auth B], R [auth A], RA [auth B], S [auth A], SA [auth B], T [auth A], TA [auth B], U [auth A], UA [auth B], V [auth A], VA [auth B], W [auth A], WA [auth B], X [auth A], XA [auth B], Y [auth A], YA [auth B], Z [auth A], ZA [auth B]	(HYDROXYETHYLOXY)TRI(ETHYLOXY)OCTANE C16 H34 O5 FEOZZFHAVXYAMB-UHFFFAOYSA-N
MG	BA [auth A], CA [auth A], DA [auth A], GB [auth B], HB [auth B], IB [auth B], JB [auth B], KB [auth B]	MAGNESIUM ION Mg JLVVSXFLKOJNIY-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.85 Å
• R-Value Free:  0.253 (Depositor), 0.250 (DCC) 
• R-Value Work:  0.215 (Depositor), 0.220 (DCC) 
• R-Value Observed: 0.217 (Depositor) 

Space Group: P 1 2₁ 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 96.077	α = 90
b = 58.864	β = 110.826
c = 134.709	γ = 90

Software Package:

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

Structure Validation

Entry History & Funding Information

Deposition Data

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

---

Funding Organization	Location	Grant Number
Not funded		--

Revision History  

• Version 1.0: 2022-11-09
  Type: Initial release
  
• Version 1.1: 2023-07-12
  Changes: Data collection, Database references, Structure summary
• Version 1.2: 2023-11-29
  Changes: Data collection, Refinement description