1ILZ

OUTER MEMBRANE PHOSPHOLIPASE A FROM ESCHERICHIA COLI N156A ACTIVE SITE MUTANT pH 6.1

• PDB DOI: https://doi.org/10.2210/pdb1ILZ/pdb

• Classification: HYDROLASE, MEMBRANE PROTEIN
• Organism(s): Escherichia coli
• Expression System: Escherichia coli
• Mutation(s): No 
• Membrane Protein: Yes  PDBTMMemProtMDmpstruc


• Deposited: 2001-05-09 Released: 2001-10-03 
• Deposition Author(s): Snijder, H.J., Van Eerde, J.H., Kingma, R.L., Kalk, K.H., Dekker, N., Egmond, M.R., Dijkstra, B.W.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.268 
• R-Value Work: 0.222 

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 33.19 kDa 
• Atom Count: 2,229 
• Modelled Residue Count: 257 
• Deposited Residue Count: 275 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
OUTER MEMBRANE PHOSPHOLIPASE A	A	275	Escherichia coli	Mutation(s): 0  Gene Names: pldA EC: 3.1.1.32 Membrane Entity: Yes
UniProt
Find proteins for P0A921 (Escherichia coli (strain K12)) Explore P0A921  Go to UniProtKB:  P0A921

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
BOG	B [auth A], C [auth A], D [auth A], E [auth A], F [auth A]	octyl beta-D-glucopyranoside C14 H28 O6 HEGSGKPQLMEBJL-RKQHYHRCSA-N
MPD	G [auth A], H [auth A]	(4S)-2-METHYL-2,4-PENTANEDIOL C6 H14 O2 SVTBMSDMJJWYQN-YFKPBYRVSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 2.50 Å
• R-Value Free: 0.268 
• R-Value Work: 0.222 
• Space Group: P 3₁ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 78.168	α = 90
b = 78.168	β = 90
c = 101.685	γ = 120

Software Package:

Software Name	Purpose
AMoRE	phasing
CNS	refinement
DENZO	data reduction
SCALEPACK	data scaling
CCP4	data scaling

Structure Validation

Entry History 

Deposition Data

• Released Date: 2001-10-03 
Deposition Author(s): Snijder, H.J., Van Eerde, J.H., Kingma, R.L., Kalk, K.H., Dekker, N., Egmond, M.R., Dijkstra, B.W.

Revision History  

• Version 1.0: 2001-10-03
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Version format compliance
• Version 1.3: 2020-07-29
  Type: Remediation
  Reason: Carbohydrate remediation
  Changes: Data collection, Derived calculations, Structure summary
• Version 1.4: 2022-12-21
  Changes: Database references, Structure summary
• Version 1.5: 2023-09-20
  Changes: Data collection, Refinement description