1QQ4

CRYSTAL STRUCTURE OF AN ALPHA-LYTIC PROTEASE MUTANT WITH ACCELERATED FOLDING KINETICS, R102H/G134S

• PDB DOI: https://doi.org/10.2210/pdb1QQ4/pdb

• Classification: HYDROLASE
• Organism(s): Lysobacter enzymogenes
• Expression System: Escherichia coli
• Mutation(s): Yes 


• Deposited: 1999-06-10 Released: 1999-06-15 
• Deposition Author(s): Derman, A.I., Mau, T., Agard, D.A.

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Experimental Data Snapshot

• Method: X-RAY DIFFRACTION
• Resolution: 1.20 Å
• R-Value Free: 0.174 
• R-Value Work: 0.174 

Literature

A Genetic Screen That Targets Specifically the Folding Transition State of Alpha-Lytic Protease

Derman, A.I., Mau, T., Agard, D.A.

To be published.

Biological Assembly 1  

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

Biological assembly 1 assigned by authors.

Macromolecule Content

• Total Structure Weight: 20.64 kDa 
• Atom Count: 1,703 
• Modelled Residue Count: 198 
• Deposited Residue Count: 198 
• Unique protein chains: 1

Macromolecules

Entity ID: 1
Molecule	Chains	Sequence Length	Organism	Details	Image
ALPHA-LYTIC PROTEASE	A	198	Lysobacter enzymogenes	Mutation(s): 2  EC: 3.4.21.12
UniProt
Find proteins for P00778 (Lysobacter enzymogenes) Explore P00778  Go to UniProtKB:  P00778

Small Molecules

Ligands 2 Unique
ID	Chains	Name / Formula / InChI Key	2D Diagram
SO4	B [auth A], C [auth A], D [auth A], E [auth A], F [auth A]	SULFATE ION O4 S QAOWNCQODCNURD-UHFFFAOYSA-L
GOL	G [auth A], H [auth A], I [auth A]	GLYCEROL C3 H8 O3 PEDCQBHIVMGVHV-UHFFFAOYSA-N

Experimental Data & Validation

Experimental Data

• Method: X-RAY DIFFRACTION
• Resolution: 1.20 Å
• R-Value Free: 0.174 
• R-Value Work: 0.174 
• Space Group: P 3₂ 2 1

Unit Cell:

Length ( Å )	Angle ( ˚ )
a = 65.418	α = 90
b = 65.418	β = 90
c = 79.534	γ = 120

Software Package:

Software Name	Purpose
DENZO	data reduction
SCALEPACK	data scaling
X-PLOR	model building
X-PLOR	refinement
X-PLOR	phasing

Structure Validation

Entry History 

Deposition Data

• Released Date: 1999-06-15 
Deposition Author(s): Derman, A.I., Mau, T., Agard, D.A.

Revision History  

• Version 1.0: 1999-06-15
  Type: Initial release
  
• Version 1.1: 2008-04-27
  Changes: Version format compliance
• Version 1.2: 2011-07-13
  Changes: Non-polymer description, Version format compliance
• Version 1.3: 2021-11-03
  Changes: Database references, Derived calculations